IUCN/SSC Otter Specialist Group Bulletin

©IUCN/SCC Otter Specialist Group

Volume 34(A) Special Issue (November 2017)

Citation: Camp, V.L. (2016). A Bibliography On The North American River Otter Lontra canadensis. Fourth Edition. IUCN Otter Spec. Group Bull. 34 (A): 3 - 49

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A Bibliography On The North American River Otter Lontra canadensis. Fourth Edition

Victor L. Camp 1

1Bonita Springs, Florida, USA. e-mail: victorcamp300@gmail.com

Victor L. Camp.  Click for larger image

Originally published August 2013; revised February 2014 as IUCN OSG Bull. 30(A), 2013 (First Edition)
Revised April 2015 as IUCN OSG BUll 32(B), 2015 (Second Edition)
Revised April 2016 as IUCN OSG Bull 33(B), 2016 (Third Edition)

INTRODUCTION

Since retiring to Florida I have had more free time to enjoy the wildlife around me. As I met people and we became acquainted they eventually discovered I was a zoologist. Many of these people were interested in animals and wanted to share their interests and observations. Invariably someone would tell me they saw an otter in the pond, creek or river behind their house. Some told me they saw an otter or two or three walking down a quiet road built next to a drainage ditch, small canal or harbor that is connected to a nearby river. People have seen otters running across two lane roadways or, unfortunately, attempting to cross an interstate highway. Others told me they always see otters in the ponds in their gated community which is a relatively large housing development surrounded by a fence and having restricted access. Golfers told me they saw otters on the golf course. One couple told me about the otter that returned on several occasions to eat the koi in the pond outside their restaurant. As a consequence of these conversations I decided to keep a log of otter sightings. With this relatively prevalent species all around me I considered a number of otter research projects I might undertake where I live near the coast of southwest Florida.

The next step was to gather information on the North American river otter. I did not have access to a library at a major university, and am neither a student nor a faculty member. The literature search was conducted from books and hard copies of scientific articles I had at my immediate disposal and from scientific journal articles published directly online or stored in the extensive online journal storage databases. Literature Cited sections of these articles were reviewed. It was evident an up-to-date bibliography did not exist for Lontra [Lutra] canadensis. I knew the literature search I was conducting would have to be very extensive to satisfy my curiosity. As the bibliography evolved I realized it would be worth sharing when completed.

A conscious decision was made regarding inclusion of articles in the bibliography. The title of many articles did not contain a direct reference to otters and was not included in the bibliography. The title of other articles neither included the scientific name of the North American river otter nor “North American” or “Nearctic” and only made reference to “river otters” or “otters.” When the content of these articles was reviewed and it was evident the article referred to the North American river otter the article was included in the bibliography.

This bibliography was compiled for those undergraduates searching for a graduate research project on the North American river otter and those independent scientists, with an interest in the North American river otter, who do not have access to a library at a major university.

In the 2nd revision (2015) I felt it valuable to include river otter publications listed on the internet as in preparation, press, or review; electronically published (ahead of journal publication); published on a website and of some value (personal opinion); and publications to “watch for.”

In preparing this third revision new and recently discovered publications have been included in two ways. First, an addendum, containing these additional publications, is also presented separately. This allows those individuals, who have created a hardcopy of the bibliography, to simply print out the addendum and add it to their hardcopy. Secondly, the publications in the addendum have been added to the body of the bibliography (this document) for those who wish an updated version or are discovering the bibliography for the first time.

A Bibliography on the North American River Otter (Lontra canadensis)
3rd Edition

Compiled by
Victor L. Camp

Journal Articles | Web Articles | Watch List

JOURNAL ARTICLES

Abram, J.B. and J.R. Lichtenfels. (1974). Larval Eustrongylide ssp.(Nemotoda: Dioctopphyma toidea) from otter (Lutra canadensis) in Maryland. Proceedings of the Helminthological Society of Washington, 41(2): 253.
Addison, E.M., M.A. Strickland, A.B. Stephenson, and J. Hoeve. (1988). Cranial lesions possibly associated with Skrjabingylus (Nematoda: Metastrongyloidea) infections in martens, fishers, and otters. Canadian Journal of Zoology, 66(10): 2155-2159.
Addison, E.M., G.A. Fox, and M. Gilbertson. (eds.). (1991). Proceedings of the expert consultation meeting on mink and otter. March 5 and 6, 1991. Sponsored by Environment Canada and Ontario Ministry of Natural Resources, Windsor, Ontario. 30 pp.
Albeke, S.E., N.P. Nibberlink, and M. Ben-David. (2015). Modeling behavior by coastal river otter (Lontra canadensis) in response to prey availability in Prince William Sound, Alaska: A spatially- explicit individual-based approach. PLOS ONE 10(6): e0126208.doi:10.1371/journal.pone.0126208.
Albeke, S.E., N.P. Nibbelink, L. Mu, and D.J. Ellsworth. (2010). Measuring boundary convexity at multiple spatial scales using a linear “moving window” analysis: an application to coastal river otter habitat selection. Landscape Ecology, 25(10): 1575-1587.
Allen, C.R. (2008). Nebraska reintroduction efforts. The River Otter Journal, XVII(I): 7.
Allen, D. (2010). Otter. Reaktion Books, Ltd., 183pp.
Almonte, C. (2011). The vocal repertoire of captive North American river otters (Lontra canadensis): individual differences and shared repertoires. Ph.D., City University of New York. New York, New York.
Almonte, C. (2014). Classification of captive river otters (Lontra canadensis) vocal repertoires: individual variations and age class comparisons. Animal Behavior and Cognition, 1(4): 502- 517.
Amundson, R. (1950). The Carolina otter. Iowa Conservationist, Des Moines. 9(9): 65, 69, Illus.
Andelt, F. (1988). Unusual movements of river otters released in Nebraska. Prairie Naturalist, 20: 108.
Anderson, E.A. (1982). Status and distribution of the river otter (Lutra canadensis) in Illinois. M.S., Southern Illinois University, Carbondale, Illinois.
Anderson, E.A., and A. Woolf. (1984). River otter (Lutra canadensis) habitat utilization in northwestern Illinois. Final Report. Illinois Department of Conservation. 90 pp.
Anderson, E.A. (1985). River otter management plans: presented to the Division of Forest Resources and Natural Heritage, Illinois Department of Conservation, Springfield, Illinois. Final Report. Southern Illinois University, Cooperative Wildlife Research Laboratory, 201 pages.
Anderson, E.A., and A. Woolf. (1987). River otter food habits in northwestern Illinois. Transactions of the Illinois Academy of Science 80: 115-118.
Anderson, E.A. (1987). Past studies of the river otter (Lutra canadensis) in Illinois. Transactions of the Illinois Academy Science, 80(suppl.): 59.
Anderson, K.L. (1981). Population and reproduction characteristics of the river otter in Virginia and tissue concentrations of environmental contaminants. M.S., Virginia Polytechnic Institute and State University. Blacksburg, Virginia.
Anderson, K.L. and P.F. Scanlon. (1981)a. Organ weights of river otters. Virginia Journal of Science, 32(3): 86.
Anderson, K.L. and P.F. Scanlon. (1981)b. Heavy metal concentrations in tissues of river otters from Virginia. Virginia Journal of Science, 32(3): 87.
Anderson, K.L. and P.F. Scanlon. (1981)c. Reproduction and population characteristics of river otters in Virginia. Virginia Journal of Science, 32(3): 87.
Anderson-Bledsoe, K.L. and P.F. Scanlon. (1983). Heavy metal concentrations in tissues of Virginia river otters. Bulletin of Environmental Contamination and Toxicology, 30: 442-447.
Anderson, R.C. (1964). Gnathostoma mryazakii n. sp. from the otter (Lutra canadensis) with comments on G. sociale (Leidy, 1858) of mink (Mustela vison). Canadian Journal of Zoology, 42(2): 249-254.
Andrews, R.D., D.A. Reeved, L.S. Jackson, and W.R. Clark, (1986). Reintroduction of river otters in Iowa. Proceedings of the Iowa Academy of Science, 9391: Abstract 93.
Anonymous. (1857). On the Canadian otter. Canadian Naturalist, 1: 228-232.
Anonymous. (1941)a. Michigan otter still a puzzle. Michigan Conservation, 10(5): 5.
Anonymous. (1941)b. Otter breeding. American Fur Breeder, 14(6): 36.
Anonymous. (1945). Little is known about breeding otters. Fur of Canada, Winnipeg, 10(1): 18.
Anonymous. (1945). Orphan otter found on DeKalb Stream. Outdoor Georgia, Atlanta, 5(30): 7 illus.
Anonymous. (1949). Otter trapped in Chesterfield County, Virginia. Virginia Wildlife, 10(4): 25.
Anonymous. (1984). Reprieve for the river otter. The Otter Raft. p. 7
Arnebeck, B. (2003). Making it through the winter. The River Otter Journal, XII(I): 10-12.
Arnebeck, B. (2004). Encounters between otters (Lontra canadensis) and American beaver (Castor canadensis). IUCN Otter Specialist Group Bulletin, 21(1): 6 pp.
Aulerich, R.J., H.G. Davis, S.J. Bursian, J.G. Sikarskie, and J.N. Stuht. (1995). Suspected thiamine deficiency (Chastek’s paralysis) in northern river otter (Lutra canadensis). Scientifur,
19: 297-304.
Bailey, J.I. (2016). Determining the impact of latitude on parturition timing in captive North American river otters: A statistical analysis of AZA studbook records. M.S., Rochester Institute of Technology. Rochester, New York.
Bailey, V. (1909). Otter as a furbearer. Annual Report: American Breeders’ Association, 5: 313-320.
Bailey, V. (1941). The otter. Nature Magazine, 4(4): 237-238, 252.
Baitchman, E.J. and G.V. Kollias. (2000). Clinical anatomy of the North American river otter (Lontra canadensis). Journal of Zoo and Wildlife Medicine, 31(4): 473-483.
Baker, J.L., J.H. Wilson, and P.F. Scanlon, (1982). Flexural strength of otter limb bone. Virginia Journal of Science, 33(3): 66.
Baldwin, E. (2013). Activity patterns, behaviors, and population status of the North American river otter (Lontra canadensis) in a northeast coastal environment, Martha’s Vineyard, Massachusetts. M.S. Thesis, Antioch University New England. Kenne, New Hampshire.
Balke, J.M.E. (1993)a. River otter predation on juvenile salmonids in winter. A review (Unpublished report, Project 92.8). Ministry of Forests, Victoria, British Columbia.
Balke, J.M.E. ( 1993)b. Preliminary report of river otter scat collection and diet analysis in Queen Charlotte Island, November (1992).and February 1993 (Unpublished report, Project 92.8). Ministry of Forests, Victoria, British Columbia, Canada.
Ballard, K.A., J.G. Sivak, and H.C. Howland. (1989). Intraocular muscles of the Canadian river otter and Canadian beaver and their optical function. Canadian Journal of Zoology, 67(2): 469-474.
Bangs, O. (1898). Description of the Newfoundland otter. Proceedings of the Biological Society of Washington, 12: 35-36.
Barding, E.E. (2011). The recovery of the river otter (Lontra canadensis) in Kentucky: Status, distribution, diet, reproductive characteristics and management of a reintroduced species. Ph.D., University of Kentucky.
Barding, E.E., M.J. Lacki, and L.L. Patton. (2010). Recovery of the river otter in Kentucky. Proceedings of the Annual Conference of the Southeast Association of Fish and Wildlife Agencies, 64: 112-117.
Barding, E.E. and M.J. Lacki. (2012)a. Status, distribution, diet, and reproductive characteristics of river otters in Kentucky. Final Report. Annual Research Highlights 2011. Kentucky Department of Fish and Wildlife Resources, 5: 26-35.
Barding, E.E. and M.J. Lacki. (2012)b. Winter diets of river otters in Kentucky. Northeastern Naturalist, 19(2): 157-164.
Barding, E.E., and M.J. Lacki. (2014). Demographic and reproductive characteristics of reintroduced river otters in Kentucky: implications for population growth. American Midland Naturalist, 172(2): 338-347.
Barding, E.E and M.J. Lacki. (2015). Occurrence of nematodes (Dracunculus spp.) in reintroduced river otters in Kentucky. Journal of the Kentucky Academy of Science, 75(1-2): 94-96
Barger, N.R. (1950). Otter. Wisconsin Conservation Bulletin, 15: 33.
Barker, I.K. (1991). Non-toxic diseases of mink and otter. p.19: In: Addison, E.M., G.A. Fox, and M. Gilbertson. (eds.). Proceedings of the expert consultation meeting on mink and otter. March 5 and 6, 1991. Sponsored by Environment Canada and Ontario Ministry of Natural Resources. Windsor, Ontario.
Barnston, G. (1863). Remarks on the genus Lutra, and on the species inhabiting North America. Canadian Naturalist and Geologist, 12: 147-188.
Barocas, A., H.N. Golden, M.W. Harrington, D.B. McDonald, and M. Ben-David. (2016). Coastal Latrine sites as social information hubs and drivers of river otter fission-fusion dynamics. Animal Behaviour, 120:103-114.
Barrett, D. (2008). Status and population characteristics of the northern river otter (Lontra canadensis) in central and eastern Oklahoma. M.S., Oklahoma State University, Stillwater.
Barrett, D.A. and D.M. Leslie, Jr. (2010). Current distribution of river otters in central and eastern Oklahoma, within seven new counties. Occasional Papers of the Museum of Texas Tech University, 294(1): 13 pp.
Barrett, D.A. and D.M. Leslie, Jr. (2012). Spatio-temporal variations in age structures of a partially re- established population of northern river otters (Lontra canadensis). The American Midland Naturalist, 168(2): 302-314.
Bartnicki, P.L. and D.B. Boone. (1989). Special report: status of the river otter (Lutra lutra) in Texas. Texas Parks and Wildlife Department, Austin, Texas.
Base, D.L. (1986). Evaluation of experimental reintroduction of river otters in Oklahoma. Unpublished report, Oklahoma Department of Wildlife Conservation Nongame Wildlife Program, Oklahoma City. 40 pp.
Basu, N., A. Scheuhammer, N. Grochowina, D. Evans, M. O’Brien, and H. Chan. (2005). Effects of mercury on neurochemical receptors in wild river otters (Lontra canadensis). Environmental Science and Technology, 39(10): 3585-3591.
Basu, N., A. Scheuhammer, R. Evans, M. H. O’Brien, and H. Chan. (2007). Cholinesterase and monoamine oxidase activity in relation to mercury levels in the cerebral cortex of wild river otters. Human and Experimental Toxicology, 26: 213-220.
Basu, N., A. Scheuhammer, and M. O’Brien. (2007). Polychlorinated biphenyls, organochlorinated pesticides and polybrominated diphenyl ethers in the cerebral cortex of wild river otters (Lontra canadensis). Environmental Pollution, 149: 25-30.
Bateman, H.L., J.B. Bond, M. Campbell, M. Barrie, G. Riggs, B. Snyder, and W.F. Swanson. (2009). Characterization of basal seminal traits and reproductive endocrine profiles in North American river otters and Asian small-clawed otters. Zoo Biology, 28: 107-126.
Beaver, T.D., G.A. Feldhamer, and J.A. Chapman. (1981). Dental and cranial anomalies in the river otter (Carnivora: Mustelidae). Brimleyana, 7: 101-109.
Beck, D. (1977). Pesticides and heavy metal residues in Louisiana river otter. M.S., Texas A&M University. College Station, Texas.
Beck, T. (1990). River otter recovery program. Job Progress Report. Colorado Division of Wildlife.
Beck, T.D.I. (1992). Development of river otter reintroduction procedures. Colorado Division of Wildlife. Denver, Colorado.
Beck, T.D.I. (1993). River otter reintroduction procedures. Colorado Division of Wildlife. Research Review, 2: 14-16.
Beckel, A.L., (1981). Interactions between bald eagles and North American river otters. Passenger Pigeon, 43(1): 3-4.
Beckel, A.L. (1982). Behavior of free-ranging and captive river otters in northcentral Wisconsin. Ph.D., University of Minnesota. Minneapolis, Minnesota.
Beckel, A.L. (1985). Social grooming in North American river otter. pp. 319-328. In: Andrews, D. and A.M. Herzberg. Data: a collection of problems from many fields for the student and research worker. Springer Series in Statistics.
Beckel, A.L.(1990). Foraging success rates of North American river otters (Lutra canadensis) hunting alone and hunting in pairs. Canadian Field-Naturalist, 104: 586-588.
Beckel, A.L. (1991). Wrestling play in adult river otters (Lutra canadensis). Journal of Mammalogy, 72(2): 386-390.
Beckel-Kratz, A.L. (1977). Preliminary observations of the social behavior of the North American river otter. Otters: The Journal of the Otter Trust, 28-32.
Beckwith, S. (2003). Rehabilitation of orphan river otters. pp. 51-60. In: Orendorff, B. (ed.). Wildlife Rehabilitation, Vol. 21. National Wildlife Rehabilitators Association.
Beheler, A.S., J.A. Fike, L.M. Murfitt, O.E. Rhodes, and T.L. Serfass. (2004). Development of polymorphic microsatellite loci for North American river otters (Lontra canadensis) and amplification in related Mustelids. Molecular Ecology Notes, 4(1): 56-58.
Beheler, A.S., J.A. Fike, G. Dharmarajan, O.E. Rhodes, and T.L. Serfass. (2005). Ten new polymorphic microsatellite loci for North American river otters (Lontra canadensis) and their utility in related mustelids. Molecular Ecology Notes, 5: 602-604.
Belanger, M., N. Askin, L. Tan, and C. Wittnich. (2010). The history and current status of otter research within Canada based on peer reviewed journal. IUCN Otter Specialist Group Bulletin, 27(3): 127-133.
Belanger, M., N. Clough, N. Askin, L. Tan, and C. Wittnich. (2011). A Review of Violent or Fatal Otter Attacks. IUCN Otter Specialist Group Bulletin, 28(1): 11-16.
Belant, J.L. (1992). Common loon aggression toward river otters and a beaver. 25 May 1985, Iron County. Passenger Pigeon, 54(3): 233–234.
Belfiore, N.M. (2006). Observation of a beaver beetle (Platypsyllus castoris ritsema) on a North American river otter (Lontra canadensis, Schreber) (Carnivora: Mustelidae: Lutrinae) in Sacramento County, California (Coleoptera: Leiodidae: Platypsyllinae). no access The Coleopterists Bulletin, 60(4): 312-313.
Belfiore, N.M. (2008). Trapping and handling of North American river otters (Lontra canadensis) in a managed marsh. Journal of Zoo and Wildlife Medicine, 39(1): 13-20.
Ben-David, M., R.T. Bowyer, and J.B. Faro. (1996). Niche separation by mink and river otters: Coexistence in a marine environment. Oikos, 75: 41-48.
Ben-David, M., R.T. Bowyer, L.K. Duffy, D.D. Roby, and D.M. Schell. (1998). Social behavior and ecosystem processes: river otter latrines and nutrient dynamics of terrestrial vegetation. Ecology, 79(7): 2567-2571.
Ben-David, M. (2000). Responses of river otters to oil contamination: a captive study. The River Otter Journal, IX(II): 8-9,12.
Ben-David, M, T.M. Williams, and O.A. Ormseth. (2000). Effects of oiling on exercise physiology and diving behavior of river otters: a captive study. Canadian Journal of Zoology, 78(8): 1380- 1390.
Ben-David, M., L.K. Duffy, G.M. Blundell, and R.T. Bowyer. (2001). Natural sure of coastal river otters to mercury: Relation to age, diet, and survival . Environmental Toxicology and Chemistry, 20: 1986-1992.
Ben-David, M., L.K. Duffy, and R.T. Bowyer. (2001). Biomarker responses in river otters experimentally exposed to oil contamination. Journal of Wildlife Diseases, 37: 489-508.
Ben-David, M., T. Kondratyuk, B.R. Woodin, P.W. Snyder, and J.J. Stegeman. (2001). Induction of cytochrome P4501A1 expression in captive river otters fed Prudhoe Bay crude oil: evaluation of immunohistochemistry and quantitative RT-PCR. Biomarkers, 6: 218-235.
Ben-David, M. (2002). Can river otters naturally recolonize the Grand Canyon? The River Otter Journal, XI(II).
Ben-David, M, G.M. Blundell, and J.E. Blake. (2002). Post-release survival of river otters: effects of exposure to crude oil and captivity. Journal of Wildlife Management, 66:1208-1223.
Ben-David, M. (2003). Predicting river otter locations with geographic information systems. The River Otter Journal, XII(1): 1-2.
Ben-David, M., H. Golden, M. Goldstein, and I. Martin. (2004). River otters in Prince William Sound and Kenai Fjords National Park: distribution, relative abundance, and minimum population size based on coastal latrine site surveys. Interagency Collaborative Report, Progress Report, Prince William Sound Science Center, Oil Spill Recovery Institute, Cordova, Alaska, USA.
Ben-David, M., G.M. Blundell, J.W. Kern, J.A.K. Maier, E.D. Brown, and S.C. Jewett. (2005). Communication in river otters: creation of variable resource sheds for terrestrial communities. Ecology, 86(5): 1331-1345.
Ben-David, M. (2009). Population survey for river otters in Rocky Mountain National Park. The River Otter Journal, XVII(II): 4-5, 8-9.
Ben-David, M. and H.N. Golden. (2009). River Otters (Lontra canadensis) in south central Alaska: distribution, relative abundance, and minimum population size based on coastal latrine site surveys. SWAN I&M program report, National Park Service. Anchorage, Alaska. 43 pp.
Ben-David, M. (2013). Population survey for river otters in the Rocky Mountain National Park: A progress report for 2012, National Park Service, Rocky Mountain National Park. The River Otter Journal, XXI(II): 1-4.
Bennett, C.H., III. (2014). A predictive habitat model for North American river otter (Lontra canadensis) along low order streams in inland New Jersey. M.S., University of Delaware. Newark, Delaware
Berg, J. (1998). The Diet of Lutra canadensis in the Upper Colorado River System. IUCN Otter Specialist Bulletin, 19A: 8-11.
Berg, J. (1999). Otter slides. The River Otter Journal, XIII(II).
Berg, J.K. (1999). Final report of the river otter research project on the Colorado River Basin and adjacent to the Rocky Mountain National Park, Colorado: conducted June 1992 thru June 1997. Presented to Rocky Mountain National Park, West Unit, Grand Lake, Colorado.
Berg, J. (2000). North American river otter diet. The River Otter Journal, IX(II): 4-5.
Berg, W.E. (1982). Reintroduction of fisher, pine marten, and river otter. pp.159-173. In: Sanderson, G.C. (ed.). Midwest Furbearer Management, Proceedings of a Symposium held at the 43rd Midwest Fish and Wildlife Conference, Wichita, Kansas, 7-8 December 1981.
Berg, W.E. and M. DonCarlos. (1996). Pilot otter population trend survey-project proposal: Minnesota Department of Natural Resources. Wildlife Populations Research Unit Annual Report. pp.130-135. In: Blair, J. (ed.). Summaries of Wildlife Research Findings 1996. Berg, W.E. and M. DonCarlos. (1998). Experimental river otter population trend survey. Pp. 99-105. In:B. Joselyn (ed.). Summaries of Wildlife Research Findings, 1998.Section of Wildlife, Minnesota Department of Natural Resources, St. Paul, MN. 177pp.
Bergan, J.F. (1990). Kleptoparasitism of a river otter (Lutra canadensis) by a bobcat (Felis rufus) in South Carolina. Brimleyana, 16: 63-65.
Beringer, J. and J. Blair. (2013). Otter population and harvest trends. pp 18-22. In: 2013 Furbearer program annual report. Missouri Department of Conservation; Resource Science Division
Best, A. (1962). The Canadian otter (Lutra canadensis) in captivity. International Zoo Yearbook, 4: 42- 44.
Beverly, J., and C.L. Elliott. (2006). Prey remains identified in river otter (Lontra canadensis, Schreber) latrines from eastern Kentucky. no access Journal of the Kentucky Academy of Science, 67(2): 125-125.
Bich, J.P. (1988). The feasibility of river otter reintroduction in northern Utah. M.S., Utah State University. Logan, Utah.
Birkenheuer, A.J., C.A. Harms, J. Neel, H.S. Marr, M.D. Tucker, and M.K. Stoskopf. (2007). The identification of a genetically unique piroplasma in North American river otter (Lontra canadensis). Journal of Parasitology, 134(5): 631-635.
Bischof, R. (2003). Status of the northern river otter in Nebraska. Prairie Naturalist, 35: 117-120.
Black, J. M. (2001). Keeping track: the otter records network. Mountains and Rivers: A Quarterly Journal of Natural History for the Klamath-Siskiyou Region, 1: 21-22.
Black, J.M. (2009). River otter monitoring by citizen science volunteers in northern California: Social groups and litter Size. Northwestern Naturalist, 90(2): 130-135.
Blaisdell, F. (1999). Rehabilitation of river otters. pp. 1-5. In: Orendorff, B. (ed.). National Wildlife Rehabilitators Association Quarterly Journal, 17(2).
Blajeski, A., L.K. Duffy, and R.T. Bowyer. (1996). Differences in faecal profiles of porphyrins among river otters exposed to the Exxon Valdez oil spill. Biomarkers, 1: 262-266.
Bluett, R. (1984). The river otter. Wisconsin Department of Natural Resources, Bureau of Wildlife Management, Madison, Wisconsin.
Bluett, R. (ed.). (1995). Illinois river otter recovery plan. Illinois Department of Natural Resources, Springfield, Illinois.
Bluett, R.D., E.A. Anderson, G.F. Hubert, G.W. Kruse, and S.E. Lauzon. (1999). Reintroduction and status of the river otter (Lutra canadensis) in Illinois. Transactions of the Illinois Academy of Science, 92(1 and 2): 69-78.
Bluett, R.D., C.K. Nielson, R.W. Gottfried, C.A. Miller, and A. Woolf. (2004). Status of the river otter (Lontra canadensis) in Illinois, 1998-2004. Transactions of the Illinois State Academy of Science, 97: 209-217.
Blundell, G. (1997). 1996 annual report near-shore vertebrate predator project: River otters. University of Alaska. Fairbanks, Alaska.
Blundell, G.M., J.W. Kern, R.T. Bowyer, and L.K. Duffy. (1999). Capturing river otters: a comparison of Hancock and leg-hold traps. Wildlife Society Bulletin, 27(1): 184-192.
Blundell, G.M, R.T. Bowyer, M. Ben-David, T.A. Dean, and S.C. Jewett. (2000). Effects of food resources on spacing behavior of river otters: does forage abundance control home-range size? pp. 325-333. In: Eiler, J.H and A.D. Neuman. (eds.). Biotelemetry 15: Proceedings of the 15th International Symposium on Biotelemetry. Juneau, Alaska, USA, May 1999. Wageningen, The Netherlands: International Society on Biotelemetry.
Blundell, G.M. (2001). Social organization and spatial relationships in coastal river otters: assessing form and function of social groups, sex-biased dispersal, and gene flow. Ph.D., University of Alaska, Fairbanks.
Blundell, G.M., S.C. Jewett, T.A. Dean, and R.T. Bowyer. (2001). An experiment of simulated predation: can river otters become food limited in a marine system? pp. 5-9. In: Jewett, S.C. (Ed.). Cold Water Diving for Science. American Academy of Underwater Sciences, 21st Annual Scientific Diving Symposium. University of Alaska Sea Grant, AK-SG-01-06, 98 pp.
Blundell, G.M., J.A.K. Maier, and E.M. Debevec. (2001). Linear home ranges: effects of smoothing, sample size, and autocorrelation on kernel estimates. Ecological Monographs, 71: 469-489. Blundell, G. (2002). Why do river otters inhabiting marine environments live in groups? The River Otter Journal, XI(I).
Blundell, G., M. Ben-David, and R.T. Bowyer. (2002). Sociality in river otters: cooperative foraging or reproductive strategies? Behaviorial Ecology, 13(1): 134-141.
Blundell, G.M., M. Ben-David, P. Groves, R.T, Bowyer, and E. Geffen. (2002). Characteristics of sex-biased dispersal and gene flow in coastal river otters: implications for natural re-colonization of extirpated populations. Molecular Ecology, 11(3): 289-303.
Blundell, G.M., M. Ben-David, P. Groves, R.T. Bowyer, and E. Geffen. (2004). Kinship and sociality in coastal river otters: Are they related? Behavioral Ecology, 15(5): 705-714.
Boege-Tobin, D.D. (2005). Ranging patterns and habitat utilization of northern river otters (Lontra canadensis) in Missouri: implications for the conservation of a reintroduced species. Ph.D., University of Missouri-St. Louis. Saint Louis, Missouri.
Bohrman, J.A. (2011). Evaluating river otter (Lontra canadensis) translocation success: post-release monitoring via olfactory attractants and inter-peritoneal transmitters, and local anglers attitudes. M.S., Frostburg State University. Frostburg, Maryland.
Bohrman, J.A., S.S. Stevens, and T.L. Serfass. (2012). Long-term survival and reproduction in a North American river otter (Lontra canadensis) with an intraperitoneal radio-transmitter. Canadian Field-Naturalist, 125(3): 252-254.
Bohrman, J. (2012)a. Rehabilitated otters take to the wilds of Texas. The River Otter Journal, XIX(I): 5.
Bohrman, J. (2012)b. Yellowstone’s otters are no match for invasive lake trout. The River Otter Journal, XIX(I): 8.
Bohrman, J., S. Stevens, and T.L. Serfass. (2012). Long-term survival and reproduction in a North American river otter (Lontra canadensis) with an intraperitoneal radio-transmitter. The River Otter Journal, XIX(I): 6-7.
Boone, D. (2013). Seasonal prey of the North American river otter (Lontra canadensis) at delta sites. M.S., California State University. California
Bottorff, J.A., R.A, Wigal, D. Pursley, and J.I. Cromer. (1976). The feasibility of river otter reintroduction in West Virginia. Special Report, West Virginia Department of Natural Resources, Division of Wildlife. 14 pp.
Bouley, P., M. Isadore, and T. Carroll. (2015). Return of North American river otters (Lontra canadensis) to coastal habitats of the San Francisco Bay Area, California. Northwestern Naturalist, 96(1): 1-12
Bowman, J., A.G. Kidd, L.A. Nituch, C. Sadowski, and A.I. Schulte-Hostedde. (2014). Testing for Aleutian Mink Disease Virus in the river otter (Lontra canadensis) in sympatry with infected American mink (Neovison vison). Journal of Wildlife Diseases, 50 (3): 689-693.
Bowyer, R.T., J.W. Testa, J.B. Faro, C.C. Schwartz, and J.B. Browning. (1994). Changes in diets of river otters in Prince William Sound, Alaska: effects of the Exxon Valdez oil spill. Canadian Journal of Zoology, 72(6): 970-976.
Bowyer, R.T., J.W. Testa, and J.B. Faro. (1995). Habitat selection and home ranges of river otters in a marine environment: effects of the Exxon Valdez oil spill. Journal of Mammalogy, 76(1): 1-11.
Bowyer, R.T., G.M. Blundell, M. Ben-David, S.C. Jewett, T.D. Dean, and L.K. Duffy. (2003). Effects of the Exxon Valdez oil spill on river otters: injury and recovery of a sentinel species. Wildlife Monographs, 153: 1-53.
Boyle, H, (1919). River otter plays on moonlight nights. California Fish Game, 5: 98.
Boyle, S. (2006). North American river otter (Lontra canadensis): a technical conservation assessment. Prepared for USDA, Forest Service, Rocky Mountain Region, Species Conservation Project.
Bradley, P.V. (1986). Ecology of river otters in Nevada. M.S., University of Nevada. Reno, Nevada.
Bradley, P. V. (1994). Otter limits. Natural History, 103: 35-45.
Bradt, G.W. (1945). What about the otter? Michigan Conservation, 14(2): 4,10.
Bradt, G.W. (1946). Otter-playboy of streams and lakes. Michigan Conservation, 15: 6-7.
Brandhagen, M.D. (2003). Monitoring of the North American river otter (Lontra canadensis) using molecular analysis of scat: a noninvasive technique and its potential application to otter management and conservation. Ph.D., George Mason University. Fairfax, Virginia.
Brandt, J.R. (2010). Assessing the origin of North American river otters in North Dakota using microsatellite analysis. M.S., Frostburg State University, Frostburg, Maryland.
Brandt, J.R., A.L. Brandt, F.K. Ammer, A.L. Roca, and T.L. Serfass. (2014). Impact of population expansion on genetic diversity and structure of river otters (Lontra canadensis) in central North America. Journal of Heredity. 105(1): 39-47.
Breaux, A., W. Zielinski, and T. Kucera. (2002). Data collection protocol monitoring river otter (Lutra[=Lontra] canadensis). San Francisco Wetlands Regional Monitoring Program Plan, San Francisco, California.
Brennan, C. (2013). Boulder confirms first North American river otter sighting in a century. Boulder DailyCamera.com, Posted: 04/02/2013.
Brewster, W. (1909). The otter in eastern Massachusetts. Science, New Series, 29(744): 551-555.
Britt, T.L. (unk). Environmental assessment report for river otter reintroduction.Coconino National Forest, Prescott National Forest, Tonto National Forest. USDA Forest Service Southwestern Region. Report provided by the Arizona Game and Fish Department.
Britt, T.L., R. Gerhart, and J.S. Phelps. (1984). River otter stocking. Project. No. W-53-R-34, Arizona. pp. 125-34.
Britton, A.P., E. Zabek, and H. Schwantje. (2011). Pleural Actinomycosis in a free-ranging river otter (Lontra canadensis). Journal of Zoo and Wildlife Medicine, 42(4): 751-754.
Brown, M.K. and G.R. Parsons. (1983). Otter management in northern New York: preliminary results. Transactions of the Northeast Section, the Wildlife Society, 40: 96.
Brzeski, K. (2010). A non-invasive approach examining North American river otter abundance and sociality. M.S., Humboldt State University, Arcata, California.
Brzeski, K. E., Gunther, M. S., & Black, J. M. (2013). Evaluating river otter demography using noninvasive genetic methods. The Journal of Wildlife Management, 77(8): 1523-1531.
Buhler, D. R. (2013). Environmental contaminants in male river otters collected from Oregon and Washington, 1994-99, with reproductive organ hypoplasia observed in otter males. Ph.D., Oregon State University. Corvallis, Oregon.
Burgess, T.W. (1924). Sliding otter. Journal of Mammalogy, 5: 6.
Burns, E.K. (2012). Non-invasive approach to river otter monitoring and population estimation in the Finger Lakes. SUNY Environmental Science and Forestry. Final report for Edna Bailey Sussman Foundation Internship.
Burt, W.H. (1954). Extra premolars in the river otter. Journal of Mammalogy, 35: 125-126.
Bushy, D. (1970). Trapping and handling beaver and otter. All rights reserved: S. Stanley Hawbaker, Fort London, Pennsylvania. 43 pp. Available from rpoutdoors.com
Butcher, O.L. (unk). Professional beaver and otter trapping. O.L. Butcher publisher. 36 pp. Available from rpoutdoors.com
Buzzell, B., M.M. Lance, and A. Acevedo-Gutierrez. (2014). Spatial and temporal variation in river otter (Lontra canadensis) diet and predation on rockfish (Genus Sebastes) in the San Juan Islands. Aquatic Mammals, 40(2): 150-161.
Cain-Stage, M. (1990). Rehabilitation Notes: American river otter (Lutra canadensis). Wildlife Journal, 13(1): 7-10. International Wildlife Rehabilitation Council.
Camp, V.L. (2013). A bibliography on the North American river otter (Lontra canadensis). IUCN Otter Special Group Bulletin, Special Edition 30(A): 3-41.
Camp, V.L. (2015). 2nd edition: A bibliography on the North American river otter (Lontra canadensis). IUCN Otter Special Group Bulletin, Special Edition 32(B): 3-41.
Camp, V.L. (2016). 3rd edition: A bibliography on the North American river otter (Lontra canadensis). IUCN Otter Special Group Bulletin, Special Edition 33(B): 3-47.
Caras, R.A. (1967). Freshwater clown: the river otter. pp. 191-196. In: North American Mammals: Fur- bearing Mammals of the United States and Canada. Galahad Books, New York, NY. 578 pp.
Cardoza, J.E. (1977). The river otter in Massachusetts. Massachusetts Wildlife, 28(6): 8-11. Carpenter, C.P. (2001). Scat marking and the use of latrine sites by river otters along Tionesta Creek, northwestern Pennsylvania. M.S., Frostburg State University, Frostburg, Maryland.
Carpenter, S.K., N. Mateus-Pinilla, and M.L. Green. (2013). Evaluating the relationship between river otters and river otter latrines. The River Otter Journal, XXI(II): 12-14.
Carpenter, S.K., N.E. Mateus-Pinilla, K, Singh, and A. Lehner, R.D. Bluett, N.A. Rivera, and J.E. Novakofski. (2013). River otters as biomonitors for organochlorine pesticides, PCBs, and PBDEs in Illinois. Ecotoxicology and Environmental Safety, 100: 99-104.
Chabreck, R., J. Holcombe, G. Linscombe, and N. Kinler. (1982). Winter food of river otters from saline and fresh environments in Louisiana. Proceedings of the Annual Conference of the Southeast Association of Fish and Wildlife Agencies, 36: 373–383.
Chabreck, R., Edwards, T., and G. Linscombe. (1985). Factors affecting the distribution and harvest of river otters in Louisiana. Proceedings of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies, 39: 520-527.
Chambers, G.D. (2008). The river otter in Missouri. The River Otter Journal, IX(I): 5.
Chanin, P. (1985). The Natural History of Otters. Facts on File Publications. New York, N.Y. 179 pp.
Chapman, F.B. (1956). The river otter in Ohio. Journal of Mammalogy, 37: 284.
Cheatum, E.L. and A.H. Cook. (1948). On the occurrence of the North American guinea worm in mink, otter, raccoon, and skunk in New York state. The Cornell Veterinarian, 38: 421-423.
Chilelli, M., B. Griffin, and D.J. Harrison. (1996). Interstate comparisons of river otter harvest data. Wildlife Society Bulletin, 24: 238-246.
Chinnadurai, S.K., A.J. Birkenheuer, H.L. Blanton, R.G. Maggi, N. Belfiore, H.S. Marr, E.B. Breitschwerdt, and M.K. Stoskopf. (2010). Prevalence of selected vector-borne organisms and identification of Bartonella species DNA in North American river otters (Lontra canadensis). Journal of Wildlife Diseases, 46(3): 947-950.
Chou, K.D. (2011). An industrial oasis for otters. The River Otter Journal, XX(1): 8-9.
Christensen, K.M. (1984). Habitat selection, food habits, movements, and activity patterns of reintroduced river otter (Lutra canadensis) in central Arizona. M.S., Northern Arizona University. Flagstaff, Arizona.
Christensen, K.M. (1984). Habitat selection, food habits, movements, and activity patterns of reintroduced river otters (Lutra canadensis) in Central Arizona. M.S., Northern Arizona University. Flagstaff. Arizona.
Chromanski, J.F. and E.K. Fritzell. (1982). Status of the river otter (Lutra canadensis) in Missouri. Transactions of the Missouri Academy of Science, 16: 43-48.
Clark, J.D. (1981). An evaluation of a censusing technique and environmental pollutant trends in the river otter of Georgia. M.S., University of Georgia. Athens, Georgia.
Clark, J.D., J.H. Jenkins, P.B. Bush, and E.B. Moser. (1981). Pollution trends in river otter in Georgia. Proceedings of the Annual Conference of the Southeast Association of Fish and Wildlife Agencies, 35: 71-79.
Clark, J. and P. Polechla (1986). The river otter in Arkansas: A success story. Arkansas Game Fish, 17(6): 7-9.
Clark, J.D., T. Hon, K.D. Ware, and J.H. Jenkins. (1987). Methods for evaluating abundance and distribution of river otters in Georgia. Proceedings of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies, 41: 358-364.
Clouser, J. (1969). Space-age beaver and otter trapping. Copyright 1969, James A. Mesler. 41 pp. Available from rpoutdoors.com
Code, T.E., A.C.H. Reid, and S.M. Herrero. (1994). Food habits of the river otter in a boreal ecosystem. Canadian Journal of Zoology, 72: 1306-1313.
Cogliano, M.M. (2003). The ecology and status of the North American river otter (Lontra canadensis) on the Marine Corps Base, Quantico, Virginia. Ph.D., George Mason University. Fairfax, Virginia.
Colby, J. (2004). Surveying for otters on the Dolores River. The River Otter Journal, XIV(I): 8-9.
Colorado Division of Wildlife. (2003). State of Colorado river otter recovery plan. Colorado Division of Wildlife, Denver, Colorado. 50 pp.
Compton, L.A. (2000). Status of southwest river otters (Lontra canadensis sonora) in the Colorado River through Grand Canyon National Park. The River Otter Journal, IX(II): 10-11.
Conn, R. (2010). Update on the New Mexico reintroduction. The River Otter Journal, XIX(I): 4.
Converse, R.L., M. Baron-Deutsch, A. Gjuillin, and A.J. Rowe. (2014). Reproduction of reintroduced North American river otter (Lontra canadensis) confirmed in New Mexico. IUCN Otter Specialist Group Bulletin, 31(1): 35-39.
Cook, D.B. (1940). An otter takes a ride. Journal of Mammalogy, 21: 216.
Cooley, L. (1983). Winter food habits and factors influencing the winter diet of river otter in north Florida. M.S., University of Florida. Gainesville, Florida.
Coon-Frisch, E. (2012). Otter spotter: The creation and evaluation of an educational resource for the Association of Zoos and Aquariums, Rochester Institute of Technology, and the Seneca Park Zoo. M.S., Rochester Institute of Technology. Henrietta, New York.
Cosby, H. (2013). Diet and activity of river otters (Lontra canadensis) based on season and ecosystems. The River Otter Journal, XXI(II): 7-10.
Cosby, H. A. (2013). Variation in diet and activity of river otters (Lontra canadensis) by season and aquatic community. Ph.D., Humboldt State University. Arcata, California.
Cote, D., R.S. Gregory, and H.M.J. Stewart. (2008). Size-selective predation by river otter (Lontra canadensis) improves refuge properties of shallow coastal marine nursery habitats. Canadian Journal of Zoology, 86(11): 1324-1328.
Cote, D., H.J.M. Stewart, R.S. Gregory, J. Gosse, J.J. Reynolds, G.B. Stenson, and E.H. Miller. (2008). Prey selection by marine-coastal river otters (Lontra canadensis) in Newfoundland, Canada. Journal of Mammalogy, 89(4): 1001-1011.
Coues, E. (1877). Fur-bearing animals: a monograph of North American Mustelidae. Miscellaneous Publications of the Department of the Interior, United States Geological Survey,Washington, D.C, 8:1-348.
Crait, J. (2002). River otters, cutthroat trout, and their future in Yellowstone National Park. The River Otter Journal, XI(II): 1-3.
Crait, J.R. and M. Ben-David. (2004). How important are Yellowstone cutthroat trout to river otters? The River Otter Journal, XIII(II): 5.
Crait, J.R. (2005)a. Seasonal activity and nutrient transport by river otters in Yellowstone National Park. M.S., University of Wyoming. Laramie, Wyoming.
Crait, J. (2005)b. Are there river otters in Katmai National Park? The River Otter Journal, XIV(I): 2-3
Crait, J. (2005)c. Adaptation to high altitude diving: Can river otters switch from cutthroat to lake trout? The River Otter Journal, XIV(II): 1, 3.
Crait, J.R. and M. Ben-David. (2006). River otters in Yellowstone Lake depend on a declining cutthroat trout population. Journal of Mammalogy, 87(3): 485-494.
Crait, J.R., G.M. Blundell, K.E. Ott, J.K. Herreman, and M. Ben-David. (2006). Late seasonal breeding of river otters in Yellowstone National Park. The American Midland Naturalist, 156(1): 189-192.
Crait, J.R. and M. Ben-David. (2007). Effects of river otter activity on terrestrial plants in trophically altered Yellowstone Lake. Ecology, 88(4): 1040-1052.
Crait, J. R., A.D. McIntosh, E.C. Greiner, and M. Ben-David. (2015). The influence of changing prey availability on the prevalence of Diphyllobothrium in river otters from Yellowstone National Park. The Journal of Parasitology101(2): 240-243.
Crait, J.R., H.D. Prange, N.A. Marshall, H.J. Harlow, C.J. Cotton, and M. Ben-David. (2012). High altitude diving in river otters: Coping with combined hypoxic stresses. The Journal of Experimental Biology, 215: 256-263.
Cramer, M.S. (1995). River otter (Lontra canadensis) restoration in Kentucky. Final Report. Kentucky Department of Fish and Wildlife Resources, Frankfort, KY.
Crimmins, S.M., N.M. Roberts, and D.A. Hamilton. (2009). Effects of prey size on scat analysis to determine river otter (Lontra canadensis) diet. no access Wildlife Biology, 15(4): 449-453.
Crimmins, S.M., N.M. Roberts, D.A. Hamilton, and A.R. Mynsberge. (2009). Seasonal detection rates of river otters (Lontra canadensis) using bridge-site and random-site surveys. Canadian Journal of Zoology, 87(11): 993-999.
Crimmins, S.M., N.M. Roberts, and D.A. Hamilton. (2011). Age-specific reproductive rates of river otters in southern Missouri. Southeastern Naturalist, 10(3): 501-508.
Crowley, S., C.J. Johnson, and D. Hodder. (2012)a. Spatial and behavioral scales of habitat selection and activity by river otters at latrine sites. Journal of Mammalogy, 93(1): 170-182.
Crowley, S., C.J. Johnson, and D. Hodder. (2012)b. The role of demographic and environmental variables on the presence of snow tracks by river otters (Lontra canadensis). Wildlife Biology, 18(1): 105-112.
Crowley, S., C.J. Johnson, and D.P. Hodder. (2013). Spatio-temporal variation in river otter (Lontra canadensis) diet and latrine site activity. Ecoscience, 20(1): 28-39.
Cumbie, P.M. (1975). Mercury levels in Georgia otter, mink and freshwater fish. Bulletin of Environmental Contamination and Toxicology, 14: 193-197.
CWHC and Submitted by Lejeune, M. (2014). A parasite of the North American river otter: Potential cause of blindness in burbot? Canadian Wildlife Health Cooperative. Online. Access: http://blog.healthywildlife.ca.
David, M., T.M. Williams, and O.A. Ormseth. (2000)
. Effects of oiling on exercise physiology and diving behavior of river otters: a captive study. Canadian Journal of Zoology, 78(8): 1380- 1390.
Davis, H.G., R.J. Aulerich, S.J. Bursian, J.G. Silkarskie, and J.N. Stuht. (1992)a. Feed consumption and food transit time in northern river otters (Lutra canadensis). Journal of Zoo and Wildlife Medicine, 23(2): 241-244.
Davis, H.G., R.J. Aulerich, S.J. Bursian, J.G. Sirksarskie, and J.N. Stuht. (1992)b. Hematologic and blood chemistry values of the northern river otter (Lutra canadensis). Journal of Zoo and Wildlife Medicine, 23: 267-271.
Davis, J.A. (1978). A classification of the otters. pp. 14-13, In: Duplaix, N. (ed.). Otters: Proceedings of the first working meeting of the Otter Specialist Group, International Union for the Conservation of Nature, Gland, Switzerland. 158 pp.
Davis, J. (1985). Unpublished proceedings from the River Otter Breeding symposium held at the Turtle Back Zoo, 560 Northfield Avenue, West Orange, New Jersey, 07052. 03 April 1985.
Davis, W.S. (1981). Aging, reproduction, and winter food habits of the bobcat (Lynx rufus) and river otter (Lutra canadensis) in Mississippi. M.S., Mississippi State University. Starkville, Mississippi.
Day, C.C. (2012). Translocation mortality and local, regional, and continental diet of the northern river otter (Lontra canadensis). M.S., Brigham Young University. Provo, Utah.
Day, C.C., M.D. Westover, and B.R. McMillan. (2013). Factors influencing mortality associated with the translocation of northern river otters (Lontra canadensis) in Utah. Western North American Naturalist, 73(3): 357-364.
Day, C.C., M.D. Westover, and B.R McMillan. (2015). Seasonal diet of the northern river otter (Lontra canadensis): what drives prey selection? Canadian Journal of Zoology, 93(3): 197-205.
Day, C.C., M.D. Westover, and C. Schenck. (2015). Seasonal diet of the northern river otter (Lontra canadensis): What drives prey selection? Canadian Journal of Zoology, 93: 197-205.
Dearden, L.C. (1954). Extra premolars in the river otter, Journal of Mammalogy, 35: 125-126.
Dejardins, C. (2007). Habitat selection of river otters in the Alberta pacific forest. The River Otter Journal, XVI(I): 7-8.
Dekar, M. (2009). Spatial and temporal variation in the structure of stream food webs: Investigating the effects of shifting basal resources and predation from a top predator, the river otter (Lontra canadensis). Ph.D., University of Arkansas. Fayetteville, Arkansas.
Dekar, M.P., D.D. Magoulick, and J. Beringer. (2010). Bioenergetics assessment of fish and crayfish consumption by river otter (Lontra canadensis): Integrating prey availability, diet, and field metabolic rate. Canadian Journal of Fisheries and Aquatic Sciences, 67(9): 1439-1448.
Dekker, D. (1989). Otters return to Jasper National Park, Alberta Nature, 19(4): 141-142
DePue, J. E. (2002)a. River otter (Lontra canadensis) survey of the Gunnison river: Chukar Trail to Redlands Diversion Dam, Colorado. Unpublished Report. Colorado Division of Wildlife, Grand Junction. 4 pp.
DePue, J. E. (2002)b. River otter (Lontra canadensis) survey of the Green river, Colorado. Unpublished Report. Colorado Division of Wildlife, Grand Junction. 4 pp.
DePue, J.E. (2007). Limited geneflow among reintroduced river otter populations in Colorado: evidence from DNA collected with a novel method. M.S., University of Wyoming. Laramie, Wyoming.
Depue, J.E. and M. Ben-David. (2007). Hair sampling techniques for river otters. The Journal of Wildlife Management, 71(2): 671-674.
Depue, J.E. and M. Ben-David. (2010). River otter latrine site selection in arid habitats of western Colorado, USA. The Journal of Wildlife Management, 74: 1763-1767.
Devoe, A. (1945). Otter. American Mercury, 60: 221.
Dewit, T., V. Clulow, N. Dave, M. Mirka, G. Parker, and N. Peterson-Schaffner. (2002). Ra-226 in bone of mink (Mustela vison) and otter (Lutra canadensis) taken near ‘U’ workings at Elliot Lake, Canada and from reference areas with calculation of transfer parameters. Bulletin of Environmental Contamination and Toxicology, 68(6): 878-884.
Diggs, G. (2013). The river otter on Idaho: reproductive and population parameters and liver concentrations of environmental contaminants. M.S., Boise State University. Boise, Idaho.
Dobbins, C.L. (unk). Beaver and otter trapping: open water techniques. Dobbins’ Products. 114 pp. Available from flemingtraps.com.
Docktor, C.M., R.T. Bowyer, and A.G. Clark. (1987). Number of corpora lutea as related to age and distribution of river otter in Maine. Journal of Mammalogy, 68: 182-185.
Doherty, D. (2011). Distribution patterns of river otters (Lontra canadensis) within Monroe County, New York. M.S., Rochester Institute of Technology. 45 pp.
Dolloff, C.A. (1993). Predation by river otters (Lutra canadensis) on juvenile coho salmon (Oncorhynchus kisutch) and dolly varden (Salvelinus malmo) in southeast Alaska. Canadian Journal of Fisheries and Aquatic Sciences, 50: 312-315.
Dornbos P., S. Strom, and N. Basu. (2013). Mercury exposure and neurochemical biomarkers in multiple brain regions of Wisconsin river otters (Lontra canadensis). Ecotoxicology, 22(3): 469- 475.
Dorbos, P., S. Chernyak, J. Rutkiewicz, T. Cooley, S. Strom, S. Batterman, and N. Basu. (2015). Hepatic polybrominated diphenylether (PBDE) levels in Wisconsin river otter (Lontra canadensis) and Michigan bald eagles (Haliaeetus leucocephalus). Journal of Great Lakes Research, 41(1): 222-227.
Dronkert, A.E. (1983). Lutra canadensis river otter recovery habitat evaluation form. Unpublished report. Colorado Division of Wildlife, Denver, CO.
Dronkert-Egnew, A.E. (1991). River otter population status and habitat use in northwestern Montana. M.S., University of Montana. Missoula, Montana.
Dubuc, L. J. (1987). Ecology of river otters on Mount Desert Island, Maine. M.S., University of Maine, Orono, Maine.
Dubuc, L.J. (1988). OTTER: Habitat use and food habits. In: Arthur, S.M. and W.B. Krohn. (1988). An annotated bibliography of predator research in Maine, 1974-1988. Maine Agricultural Experimental Station, Technical Bulletin 132: 13-14.
Dubuc, L.J., W.B. Krohn, and R.B. Owen Jr. (1990). Predicting occurrence of river otter by habitat on Mount Desert Island, Maine. Journal of Wildlife Management, 54: 594-599.
Duffy, L.K., R.T. Bowyer, J.W. Testa, and J.B. Faro. (1993). Differences in blood haptoglobin and length-mass relationships in river otter (Lutra canadensis) from oiled and non-oiled areas of Prince William Sound, Alaska. Journal of Wildlife Disease, 29: 353-359.
Duffy, L.K, R.T. Bowyer, J.W. Testa, and J.B. Faro. (1994)a. Chronic effects of the Exxon Valdez oil spill on blood and enzyme chemistry of river otters. Environmental Toxicology and Chemistry, 13: 643-647.
Duffy, L.K., R.T. Bowyer, J.W. Testa, and J.B. Faro. (1994)b. Evidence for recovery of body mass and haptoglobin values of river otters following the Exxon Valdez oil spill. Journal of Wildlife Disease, 30: 421-425.
Duffy, D.C. (1995). Apparent otter predation on an Aluetian tern colony. Colonial Waterbirds, 18(1): 91-92.
Duffy, L. K., M.K. Hecker, G.M. Blundell, and R.T. Bowyer. (1999). An analysis of the fur of river otters in Prince William Sound, Alaska: Oil related hydrocarbons 8 years after the Exxon Valdez oil spill. Polar Biology, 21(1), 56-58.
Duplaix-Hall, N. (1972). Notes on maintaining river otters in captivity. International Zoo Yearbook, 12: 178-181.
Duplaix, N. and J.A. Davis. (1983). "Lutra canadensis" . CITES Appendix 2, pp 12-27
Duplaix-Hall, N. (1975). River otters in captivity: A review. pp. 315-327. In: Martin, R.D. (ed.). Breeding Endangered Species in Captivity. Academic Press, London.
Earley, L.S. (1992). On the rebound: Gone for 50 years, river otters are back in the Smokies, thanks to a successful reintroduction program. National Parks, 68(5/6): 35-38.
Eccles, D.R. (1989). An evaluation of survey techniques for determining relative abundance of river otters and selected other furbearers. M.S., Emporia State University, Emporia, Kansas.
Edwards, T.L. (1983). River otter abundance, distribution, and habitat use in Louisiana. M.S., Louisiana State University. Baton Rouge, Louisiana.
Eley, T. Jr. (1977). Ixodes uriae (Acari: Ixodidae) from a river otter. Journal of Medical Entomology, 13: 506.
Elliott, J.E., C.J. Henny, M.L. Harris, and R.J. Norstrom. (1999). Chlorinated hydrocarbons in livers of American mink (Mustela vison) and river otter (Lutra canadensis) from the Columbia and Fraser River basins, 1990-1992. Environmental Monitoring and Assessment, 57: 229-252.
Elliott, J.E., D.A. Guertin, and J.M.E. Balkec. (2008). Chlorinated hydrocarbon contaminants in feces of river otters from the southern Pacific coast of Canada, 1998–2004. Science of the Total Environment, 397: 58-71.
Ensor, K.E. (1991). Minnesota Pollution Control Agency 1989-1991: Contaminants in Minnesota Wildlife Study. pp 8-11. In: Addison, E.M., G.A. Fox and M. Gilbertson (eds.). Proceedings of the Expert Consultation Meeting on Mink and Otter.
Erb, J.D. and C.S. DePerno. (2001). Distribution and relative abundance of river otters in southern Minnesota. pp. 19-26. In: DonCarlos, M.W., R.T. Eberhardt, R.O. Kimmel, and M.S. Lenarz (eds.). Wildlife population and research unit (2000) report. Minnesota Department of Natural Resources, St. Paul.
Erickson, D.W., C.R. McCullough, and W.R. Porath. (1984). Evaluation of experimental river otter reintroductions. Final Report of Missouri Department of Conservation. Federal Aid Project. No. W-13-R-38. 47 pp.
Erickson, D. and C. McCollough. (1985). Doubling our otters, Missouri Conservation, 46930: 47.
Erickson, D.W. and C.R. McCullough. (1987). Fates of translocated river otters in Missouri. Wildlife Society Bulletin, 15: 511-517.
Erickson, D.W. and D.A. Hamilton. (1988). Approaches to river otter restoration in Missouri. Transactions of the 53rd North American Wildlife and Natural Resources Conference, 53: 404- 413.
Ermer, J. (2006). Preliminary investigation to determine presence or absence of river otters in northeastern South Dakota. South Dakota Department of Game, Fish and Parks, Wildlife Division Final Report, Pierre, SD.
Ermer, J. (2007). Investigation to determine presence/absence of river otters (Lontra canadensis) in eastern South Dakota. South Dakota Department of Game, Fish and Parks, Wildlife Division Final Report, Pierre, SD.
Ermer, J. (2008). Investigation to determine presence/absence of river otters (Lontra canadensis) in eastern South Dakota. South Dakota Department of Game, Fish and Parks, Wildlife Division Final Report, Pierre, SD.
Ermer, J. (2011). Summary of necropsy data collected from river otters in South Dakota. South Dakota Department of Game, Fish and Parks Wildlife Division Summary Report, Pierre, SD.
Ermer, M. (2003). New York winter river otter survey. New York State Department of Environmental Conservation. Region 9, Buffalo, New York.
Esbensen, B.J. (2011). Playful Slider: the North American River Otter. University of Minnesota Press, Minneapolis, Minnesota.
ESSA: Endangered Species Scientific Authority. (1978). Export of bobcat, lynx, river otter, and American ginseng. Federal Register 43, 11082-11093.
Ethier, Y. (2003). Regarding ottter. International Trapper, 11: 17-20.
Evans, J.W. (2006). Observer error in identifying species using indirect signs: Analysis of a river otter survey technique. M.S., Texas A&M University. College Station, Texas.
Evans, J.W., C.A. Evans, J.M. Packard, G. Calkins, and M. Elbroch. (2009). Determining observer reliability in counts of river otter tracks. Journal of Wildlife Management, 73(3): 426-432.
Evans, R.D. and E.M. Addison. (1996). Spatial variation in total and methyl mercury concentrations in otter (Lutra canadensis) in central Ontario, Canada. Proceedings: 4th International Conference: Mercury as a Global Pollutant. Hamburg, 4: 406.
Evans, R., E. Addison, E. Villeneuve, K. MacDonald, and D. Joachim. (1998). An examination of spatial variation in mercury concentration in otter (Lutra canadensis) in south central Ontario. Science of the Total Environment, 213: 239-245.
Evans, R., E. Addison, E. Villeneuve, K. MacDonald, and D. Joachim. (2000). Distribution of inorganic and methylmercury among tissues in mink (Mustela vison) and otter (Lutra canadensis). Environmental Research, (Section A), 84: 133-139.
Eveland, T. (1978). The status, distribution, and identification of suitable habitat of river otters in Pennsylvania. M.S., East Stroudsburg University. East Stroudsburg, Pennsylvania.
Fagen, J.M. (1986). Ecophenic variation and functional morphology of coastal and interior Lutra canadensis. M.S., West Chester University. West Chester, Pennsylvania.
Famini, D. (2013). Case report of natural exposure, and one mortality, of North American river otters (Lontra canadensis) to Parvovirus in a rehabilitation center. Wildlife Society, Proceedings of the Annual Conference.
Fain, A. and C.E. Yunker. (1980). Lutracarus canadensis n.g., n.sp. (Listrophoridae) from the river otter (Lontra canadensis). Journal of Medical Entomology, 17: 424-426.
Farney, J.P. and J.K. Jones, Jr. (1978). Recent records of the river otter in Nebraska. Transactions of the Kansas Academy of Science (1903-), 81(3): 275-276.
Faro, J.B., R.T. Bowyer, J.W. Testa, and L.K. Duffy. (1994). Assessment of injury to river otters in Prince William Sound, Alaska, following the Exxon Valdez oil spill. Exxon ValdezOil Spill State/Federal Natural Resource Damage Assessment Final Report (Terrestrial Mammal Study Number 3), Alaska Department of Fish and Game, Soldotna, Alaska.
Faro, J.B., R.T. Bowyer, J.W. Testa, and L.K. Duffy. (1994). River otter component of the oiled mussel-bed study. Exxon Valdez Oil Spill, State/Federal Natural Resource Damage Assessment Final Report. Restoration Study 103-3. Alaska Department of Fish and Game, 34828 Kalifornsky Beach Road, Soldotna, Alaska 99669. 10pp.
Feltrop, P. D. (2015). The role of silver carp in the trophic position and diet of river otters in Illinois. M.S. Thesis, Southern Illinois University. Carbondale, Illinois.
Fenner, M.W. (unk). A few more otter. Morris W. Fenner. 20 pp. Available from rpoutdoors.com
Ferrel, S.K. (1988). The habitat requirements of river otters (Lutra canadensis) with application to the Bill Williams River, Arizona. Arizona Game and Fish Department Report.
Field, R.J. (1970). Winter habits of the river otter (Lutra canadensis) in Michigan. Michigan Academician, 3: 49-58.
Fike, J.A., T.L. Serfass, A.S. Behler, and O.E. Rhodes. (2004). Genotyping error rates associated with alternative sources of DNA for the North American river otter. IUCN: Otter Specialist Group Bulletin, 21A. 15 pp.
Fimrite, P. (2015). San Francisco: Otter becomes a Bay Area sensation. Houston Chronicle, January 9.
Findlay, W.R. (1992). Ecological aspects and dietary habits of river otter in northeastern Utah. M.S., Brigham Young University. Provo, Utah.
Fish, F.E. (1994). Association of propulsive swimming mode with behaviour in river otters (Lutra canadensis). Journal of Mammalogy, 75: 989-997.
Fisher, E.M. (1933). A fractured femur of the Alaskan river otter. Journal of Mammalogy, 14: 362-365.
Fisher, E.M. (1935). An anomalous muscle in the California river otter. Science, N.Y, 82: 172-173.
Fisher, E.M. (1942). The Osteology and Myology of the California River Otter. Stanford University Press, Stanford, California. 66 pp.
Fleming, W.J., C.M. Bunk, G. Linscombe, N. Kinler, and C.J. Stafford. (1985). PCBs, organochlorine pesticides, and reproduction in river otters from Louisiana. Proceedings of the Annual Conference of Southeastern Association of Fish and Wildlife Agencies, 39: 337-343.
Fleming, W.J., C.F. Dixon, and J.W. Lovett. (1997). Helminth parasites of river otters (Lutra canadensis) from southeastern Alabama. Proceedings of the Helminthological Society, 44: 131-135.
Flipin, S. (ed.). (1987). River otter reintroduction-update. Nongame Quarterly. Newsletter of the Ohio Nongame and Endangered Wildlife Program, 2: 5.
Foley, R.E., S.J. Jackling, R.J. Sloan, and M.K. Brown. (1988). Organochlorine and mercury residues in wild mink and otter: Comparison with fish. Environmental Toxicology and Chemistry, 7: 363- 674.
Foley, R.E., T. Martin, and G. Caputo. (1991). Mink and otter in New York State: Contaminants and preliminary populations. p. 12. In: Addison, E.M., G.A. Fox, and M. Gilbertson. (eds.). Proceedings of the expert consultation meeting on mink and otter. March 5 and 6, 1991. Sponsored by Environment Canada and Ontario Ministry of Natural Resources, Windsor, Ontario.
Foottit, R.G. and R.W. Butler. (1997). Predation on glaucous-winged gulls by river otter. Canadian Field-Naturalist, 91: 189-190.
Forman, N.S. (2015). River otter population monitoring in northeastern Pennsylvania using non-invasive genetic sampling and spatial capture-recapture models. M.S. Thesis, Pennsylvania State University, Old Main, State College, Pennsylvania.
Fortin, C, G. Beauchamp, M. Dansereau, N. Lariviere, and D. Belanger. (2001). Spatial variation in mercury concentrations in wild mink and river otter carcasses from the James Bay Territory, Quebec, Canada. Archives of Environmental Contamination and Toxicology 40: 121-127.
Foster-Turley, P. (1990). Otters in captivity. pp. 17-19. In: Foster-Turley, P., S. Macdonald, and C. Mason (eds.). Otters: an action plan for their conservation. Kelvyn Press, Broadview, Illinois.
Foy, M.K. (1984). Seasonal movement, home range, and habitat use of river otter in southeastern Texas. M.S., Texas A&M University. College Station, Texas.
Francis, D.R. and K.A. Bennet. (1994). Additional data on mercury accumulation in northern Michigan river otters. Journal of Freshwater Ecology, 9: 1-5.
Fretueg, G. (2012). Mapping river otter latrine sites in a restored floodplain. M.S., University of Illinois. Springfield, Illinois
Fretueg, G. R., T.J. Martin, C. Widga, and D.R. Ruez Jr, D. R. (2015). Summer diet characteristics of North American river otters (Lontra canadensis) in central Illinois. The American Midland Naturalist173(2): 294-304
Friar, J., G. Batcheller, and A. MacDuff. (2011). A non-harvest based assessment of river otter (Lontra canadensis) in the Mohawk River Valley of New York. Unpublished.
Friley, C.E. (1949). Age determination by use of the baculum, in the river otter (Lutra c. canadensis) Schreber. Journal of Mammalogy, 30: 102-110.
Gallagher, E. (1999). Monitoring trends in reintroduced river otter populations. M.S., University of Missouri-Columbia. Columbia, Missouri.
Gallant, D. (2004). White-winged crossbills obtain forage from river otter feces. The Wilson Bulletin, 116(2): 181-184.
Gallant, D. (2007). Species-wise disparity in scientific knowledge about otters: an obstacle to optimum management and conservations actions? IUCN Otter Specialist Group Bulletin, 24: 5-13.
Gallant, D., L. Vasseur, and C.H. Berube. (2007). Unveiling the limitations of scat surveys to monitor social species: A case study on river otters. Journal of Wildlife Management, 71(1): 258-265. Gallant, D. and A. Sheldon. (2008). Agonistic interactions between river otters and beavers: An observation and review. IUCN Otter Specialist Group Bulletin, 25(2): 23-27.
Gallant, D., L. Vasseur, and C.H. Berube. (2008). Evaluating bridge survey ability to detect river otter (Lontra canadensis) presence: A comparative study. Wildlife Biology, 14(1): 61-69.
Gallant, D., L. Vasseur, M. Dumond, E. Tremblay, and C.H. Berube. (2009). Habitat selection by river otters (Lontra canadensis) under contrasting land use regimes. Canadian Journal of Zoology, 87: 422-432.
Garwood, J.M., R.A. Knapp, K.L. Pope, M.L. Magnuson and J.R. Maurer. (2013). Use of historically fishless high mountain lakes and streams by Neartic river otters (Lontra canadensis) in California. Northwestern Naturalist, 94(1): 51-66.
Gaydos, J., P. Conrad, K. Gilardi, G. Blundell, and M. Ben-David, (2007). Does human proximity affect antibody prevalence in marine-foraging river otters (Lontra canadensis)? Journal of Wildlife Diseases, 43(1): 116-123.
Gaydos, J., W. Miller, K. Gilardi, A. Melli, H. Schwantje, C. Engelstoft, H. Fritz, and P. Conrad. (2007). Cryptosporodium and Giardia in marine foraging river otters (Lontra canadensis) from the Puget Sound Georgia Basin ecosystem. Journal of Parasitology, 93(1): 198-202.
Gaydos, J.K. (2014). Diseases of river otters, a recovering species. Proceedings of the 2014 North American Veterinary Conference. Orlando, Florida. 3 pp.
Gibson, J.R. (1992). Otter Skins, Boston Ships and China Goods. University of Washington Press, Seattle, U.S.A.
Giere, P. and D.S. Eastman. (2000). American river otters, Lontra canadensis, and humans: occurrence in a coastal urban habitat and reaction to increased levels of disturbance. pp.107- 125. In: Griffiths, H.I. (ed.). Mustelids in a modern World: Management and conservation aspects of small carnivore: Human interactions. Griffiths Backhuys Publishers, Leiden.
Gilbert, B. (1982). The Utterly delightful otter. Sports Illustrated, December 13, 57(25): 72 
Gilbert, F.F., and E.G. Nancekivell. (1982). Food habits of mink (Mustela vison) and otter (Lutra canadensis) in northeastern Alberta. Canadian Journal of Zoology, 60(6): 1282-1288.
Gilhen, J. and K. Aaboe. (2008).Winter predation by river otter (Lontra canadensis) on Tautog (Tautoga onitis) at Western Arm Jeddore Harbour, Halifax County, Nova Scotia, Canada, with a review of evidence for resident relict populations of the Tautog in Nova Scotia and New Brunswick. The Canadian Field-Naturalist, 122(3): 247-252.
Giordano, A.J. (2005). Feeding ecology of a reintroduced river otter (Lontra canadensis) population in north central Pennsylvania. M.S., Frostburg State University, Frostburg, Maryland.
Godwin, B. L., S.E. Albeke, H.L. Bergman, A. Walters, and M. Ben-David. (2015). Density of river otters (Lontra canadensis) in relation to energy development in the Green River Basin, Wyoming. Science of The Total Environment532: 780-790.
Goedeke, T.L. and S. Rikoon. (2008). Otters as actors: Scientific controversy, dynamism of networks, and the implications of power in ecological restoration. Social Studies of Science, 38(1): 111-132.
Golden, H.N. (2000). Furbearer management techniques development. Job 3: Distribution, trend, habitat use, and harvest potential of coastal river otter populations (Federal Aid in Wildlife Restoration Research Progress Report, 1 July 1999-30 June 2000. Alaska Department of Fish and Game, Juneau,Alaska.
Goldman, E.A. (1935). New American Mustelids of the genera Martes, Gulo, and Lutra, Proceedings of the Biological Society of Washington, 48: 175-186.
Goldman, E.A. (1936). A new otter from Kamchatka. Journal of Mammalogy, 17: 164.
Goldman, J.G. (2016). For river otters, social life is shaped by the latrine. Scientific American, online audio recording. Online. Access: https://www.scientificamerican.com/.../for-river-otters-social-life-is-shaped-by-the-latrine/
Goodman, P. (1981). River otter (Lutra canadensis) recovery plan. Colorado Division of Wildlife Report. (2nd draft). 24pp.
Goodman, P. (1984). River otter recovery plan. Colorado Division of Wildlife, Denver.
Gordon, C.E. (1908). The otter in Massachusetts. Science, N.Y. (n.s.) 28: 774.
Gorman, T.A. (2004). Survival, spatial characteristics, and natal den use of river otters (Lontra canadensis) in southeastern Minnesota. M.S., Minnesota State University. Mankato,
Minnesota.
Gorman, T.A., J.D. Erb, B.R. McMillan, and D.J. Martin. (2006). Space use and sociality of river otters (Lontra canadensis) in Minnesota. Journal of Mammalogy, 87(4): 740-747.
Gorman, T.A., J.D. Erb, B.R. McMillan, D.J. Martin, and J.A. Homyack. (2006). Site characteristics of river otter (Lontra canadensis) natal dens in Minnesota. American Midland Naturalist, 156(1): 109-117.
Gorman, T.A., B.R. McMillan, J.D. Erb, C.D. DePerno, and D.J. Martin. (2008). Survival and cause-specific mortality of a protected population of river otters in Minnesota. American Midland Naturalist, 159(1): 98-109.
Gotie, R.F., B. Penrod, and E.M. Ermer. (1994). Restoration of river otter in central and western New York. Project Proposal. New York State Department of Environmental Conservation, Bureau of Wildlife. Bath, New York. 35 pp.
Gould, G.I. Jr. (1977). Status of the river otter in California. Sacramento, CA. California Department of Fish and Game. 4 pp.
Gould, G.I. (1984). River otter harvest evaluation. Sacramento, California. California Department of Fish and Game. Nongame Wildlife Investigations. Project Number W-65-R. 11 pp.
Green, H.U. (1932). Observation on the occurrence of the river otter in the Riding Mountain National Park, Manitoba, in relation to beaver life. Canadian Field-Naturalist, 46: 204-206.
Green, J. and R. Green. (1992). Release techniques for otters: Theory and practice. Wildlife Rehabilitators Today, 3(4): 26-31.
Green, M. L., K. Monick, M.B. Manjerovic, J. Novakofski, and N. Mateus-Pinilla. (2015).  Communication stations: cameras reveal river otter (Lontra canadensis) behavior and activity patterns at latrines. Journal of Ethology, 33: 225-234.
Greer, K.R. (1955)a. Yearly food habits of the river otter in the Thompson Lakes region, northwestern Montana, as indicated by scat analyses. American Midland Naturalist, 54(2): 299-313.
Greer, K.R. (1955)b. The otter’s diet-good or bad? Montana Wildlife, 5(3): 14.
Grenfell, W.E. Jr. (1974). Food habits of the river otter in Suisun Marsh, central California. M.S., California State University. Sacramento, California.
Griess, J.M. (1987). River Otter Reintroduction in Great Smoky Mountains National Park. M.S., University of Tennessee. Knoxville, Tennessee.
Griess, J.M. and B. Anderson. (1987). Reintroduction of the river otter into the Obed Wild and Scenic River in Tennessee. Proceedings of the Southeast Nongame Endangered Wildlife Symposium, 3: 167-175.
Griffith, J.W., W.J. White, P.A. Pergrin, and A.A. Darrigrand. (1983). Proliferative pleuritis associated with Bacteroides melaninogenicus subsp. asaccharolyticus infection in a river otter. Journal of the American Veterinary Medical Association, 13: 1287-1288.
Grinnell, J. (1914). Distribution of river otters in California. University of California Publications in Zoology, 12: 305-311.
Gross, B.M. (2013). Evaluating the critical habitat of the North American river otter (Lontra canadensis) 30 years after their recovery at the Upper Mississippi River National Wildlife and Fish Refuge in Savanna, Illinois. Ph.D., Western Illinois University. Macomb, Illinois.
Grove, R.A, R. Bildfell, C.J. Henny, and D.R. Buhler (2003). Bilateral uric acid nephrolithiasis and ureteral hypertrophy in a free-ranging river otter (Lontra canadensis). Journal of Wildlife Diseases, 39(4): 914-917.Grove, R.A. (2006). Environmental contaminants in male river otters collected from Oregon and Washington, 1994-1999, with reproductive organ hypoplasia observed in otter males. Ph.D., Oregon State University.
Grove, R.A. and C.J. Henny. (2008). Environmental contaminants in male river otters from Oregon and Washington, USA, 1994-1999. Environmental Monitoring and Assessment, 145: 49-73. Gudger, E.W. (1927). Fishing with the otter. The American Naturalist, 61(674): 193-225.
Guertin, D.A. (2009). Assessment of contaminant exposure, diet, and population metrics of river otters (Lontra canadensis) along the coast of southern Vancouver Island. M.S., Simon Fraser University. Burnaby, British Columbia.
Guertin, D.A., A.S. Harestad, M. Ben-David, K.G. Drouillard, and J.E. Elliott. (2010). Fecal genotyping and contaminant analyses reveal variation in individual river otter exposure to localized persistent contaminants. Environmental Toxicology and Chemistry, 29(2): 275-284.
Guertin, D.A., A.S. Harestad, and J.E. Elliott. (2010). Summer feeding habits of river otters inhabiting a contaminated coastal marine environment. no access Northwest Science, 84(1): 1-8.
Guertin, D.A., M. Ben-David, A. Harestad, and J.E. Elliott. (2012). Fecal genotyping reveals demographic variation in river otters inhabiting a contaminated environment. Journal of Wildlife Management, 76(8): 1540-1550.
Gunther-Weigl, A.M. (2009). Humoral immune response in Eurasian otters (Lutra lutra), Asian small-clawed (Aonyx cinereus) and North American river otters (Lontra canadensis) after vaccination with different canine distemper virus vaccines. Ph.D., Freien University. Berlin. (in German)
Haigh, H. and A. Lachowicz. (2003). Comparison of activity levels and methods of introduction between a juvenile and adult pair of North American river otters (Lontra canadensis). Proceedings of the National Conference of the American Association of Zoo Keepers, Inc., 29: 131-140.
Haines, K.J.R. (2005). Accumulation of mercury and selenium in the brain of river otter (Lutra canadensis) and mink (Mustela vison) from Nova Scotia, Canada, M.S., Trent University. Petersborough, Ontario.
Haines, K., R. Evans, M. O’Brien, and H. Evans. (2010). Accumulation of mercury and selenium in the brain of river otters (Lontra canadensis) and wild mink (Mustela vison) from Nova Scotia. Science of The Total Environment, 408: 537-542.
Haire, M. (2009). Study of post-release data in the North American river otter (Lutra [Lontra] canadensis). Wildlife Rehabilitation Bulletin, Practioner’s Forum, 27(1): 3-17.
Haire, M. (2011)a. Section 1-Hand-rearing and release techniques to maximize chance of success: When to rehabilitate, young pup care formula feeding, and weaning. pp. 1-20. In: Reed-Smith, J. (ed.). Successful Hand-rearing and Rehabilitation of North American River Otter (Lontra canadensis). IUCN/SSC Otter Specialist Group, Otters in Zoos, Aquaria, Rehabilitation, and Wildlife Sanctuaries (OZ) Task Force.
Haire, M. (2011)b. Section 2-Hand-rearing and release techniques to maximize chance of success: Otter housing, vocalizations, and health care. pp. 21-31. In: Reed-Smith, J. (ed.). Successful Hand- rearing and Rehabilitation of North American River Otter (Lontra canadensis). IUCN/SSC Otter Specialist Group, Otters in Zoos, Aquaria, Rehabilitation, and Wildlife Sanctuaries (OZ) Task Force.
Haire, M. (2011)c. Section 2-Hand-rearing and release techniques to maximize chance of success: Otter release, resources, and suggested reading. pp. 31-37. In: Reed-Smith, J. (ed.). Successful Hand- rearing and Rehabilitation of North American River Otter (Lontra canadensis). IUCN/SSC Otter Specialist Group, Otters in Zoos, Aquaria, Rehabilitation, and Wildlife Sanctuaries (OZ) Task Force.
Halbrook, R.S., J.H. Jenkins, and P.B. Bush. (1978). Some probable effects of environmental pollutants in the North American river otter (Lutra canadensis) in Georgia. International Theriological Congress, 2: 443.
Halbrook, R.S., J.H. Jenkins, P.B. Bush, and N.D. Seabolt. (1981). Selected environmental contaminants in river otters (Lutra canadensis) of Georgia and their relationship to the possible decline of otters in North America. pp. 1752-1762. In: Chapman, J.A. and D. Pursley. (eds.). World Furbearer Conference Proceedings, Vol. 3, World Furbearer Conference, Inc. Frostburg, Maryland, USA
Halbrook, R.S. and J.H. Jenkins. (1988). Cesium-137 levels detected in Georgia otters. Bulletin of Environmental Contamination and Toxicology, 41: 765-769.
Halbrook, R.S., J.H. Jenkins, P.B. Bush, and N.D. Seabolt. (1994). Sublethal concentrations of mercury in river otters: Monitoring environmental contamination. Archives of Environmental Contamination and Toxicology, 27(3): 306-310.
Halbrook, R.S., A. Woolf, G.F. Bubert, Jr., S. Ross, and W.E. Braselton. (1996). Contaminant concentrations in Illinois mink and otter. Ecotoxicology, 5(2): 103-114.
Hamilton, C.F. (2014). Habitat and seasonal distribution of the North American river otter (Lontra canadensis) and vertebrate species assemblages in two protected areas of the Florida Everglades. M.S., Nova Southeastern University Oceanographic Center. Dania Beach, Florida.
Hamilton, D.A. (1998)a. Missouri’s river otter population model: Operation and use. Missouri Department of Conservation, Columbia, Missouri.
Hamilton, D.A. (1998)b. Missouri otter population assessment: 1996-97 and 1997-98 trapping seasons and petition for multi-year export authority. Final Report. Missouri Department of Conservation, Columbia. 24 pp.
Hamilton, D., D.J. Witter, and T.L. Goedeke. (2000). Balancing public opinion in managing river otters in Missouri. Transactions of the 65th North American Wildlife and Natural Resources Conference, 65: 292-299.
Hamilton, D.A. (2004). River otter restoration, research and population management in the spotlight of a hostile angling public in Missouri. Abstracts of the Ninth Otter Colloquium, University of Frostburg. Frostburg, Maryland.
Hamilton, D. (2006). From near zero to fifteen thousand-in 20 years! Missouri’s river otter saga by Missouri Department of Conservation. The River Otter Journal, XV(I): 1-2 and 4-5.
Hamilton, M.J. and P.K. Kennedy (1983). Genetic variation in river otter from western Tennessee. Journal of the Tennessee Academy of Science. 58(1/2): 13.
Hamilton, W.J. Jr. (1961). Late fall, winter and early spring foods of 141 otters from New York. New York Fish and Game Journal, 8: 106-109.
Hamilton, W.J. Jr. and W.R. Eadie. (1964).Reproduction in the otter (Lutra canadensis). Journal of Mammalogy, 45(2): 242-252.
Hancox. M. (1992). Some key factors in breeding, conservation, and sociality of otters. IUCN Otter Specialist Group Bulletin, 7: 2-4.
Hansen, H. (2003). Food habits of the North American river otter. The River Otter Journal, XII(II): 1-2.
Hansen, H. (2004). The effects of diet, extraction technique and microsatellite primers on genotyping success and error rates of river otter (Lontra canadensis) fecal DNA. M.S., University of Wyoming. Laramie, Wyoming.
Hansen, H., M. Ben-David, and D.B. McDonald. (2008). Technical Advances: Effects of genotyping protocols on success and errors in identifying individual river otters (Lontra canadensis) from their faeces. Molecular Ecology Resources, 8: 282-289.
Hansen, H., D.B. McDonald, P. Groves, J.A.K. Maier, and M. Ben-David. (2009). Social networks and the formation and maintenance of river otter groups. Ethology, 115(4): 384-396.
Harding, L.E. and C. Stephen. (1996). Organochloride and trace metal contaminants in mink (Mustela vison) and river otter (Lontra canadensis) in the Columbia and Fraser River System. Fraser River Action Plan 3rd Research Workshop. Environment Canada FRAP97- 09, pp. 35-39.
Harding, L., J. Elliott, and C. Stephen. (1996). Contaminants and biological measurements in mink (Mustela vison) and river otter (Lontra canadensis). Organohalogen Compounds, 29: 102- 107.
Harding, L.E., M.L. Harris, and J.E. Elliott. (1998). Heavy and trace metals in wild mink (Mustela vison) and river otter (Lontra canadensis) captured on rivers receiving metals discharges. Bulletin of Environmental Contamination and Toxicology, 61: 600-607.
Harding, L. (1999). Contaminants in otter, mink and marten in British Colombia. IUCN Otter Specialist Group Bulletin, 16(2): 97-101.
Harding, L.E., M.L. Harris, C.R. Stephan, and J.E. Elliott. (1999). Reproductive and morphological condition of wild mink (Mustela vison) and river otters (Lutra canadensis) in relation to chlorinated hydrocarbon contamination. Environmental Health Perspective, 107(2): 141-147.
Harding, L. (2002). Environmental contaminants and reproductive and physiological condition of wild mink (Mustela vison), martens (Martes americana), river otters (Lutra canadensis) and wolverines (Gulo luscus). Ph.D., Gifu University. Gifu, Japan.
Hardisky, T. (2013). River otter management in Pennsylvania: 2013-2022. Pennsylvania Game Commission. 55 pp.
Harris, C.J. (1968). Otters: A Study of Recent Lutrinae. Weidenfield and Nicolson, London, United Kingdom, 397 pp.
Harris, J. (1969). Breeding the Canadian otter (Lutra c. canadensis): In a private collection. International Zoo Yearbook, 9: 90-91.
Hartup, B.K., G.V. Kollias, M.C. Jacobsen, B.A. Valentine, and K.R. Kimber.(1999). Exertional myopathy in translocated river otters from New York. Journal of Wildlife Diseases, 35: 542-547.
Harwell, G. (1985). Coccidiodomycosis in a river otter. Proceedings of the American Association of Zoo Veterinarians Conference, 50.
Haschke, J. and M. Ben-David. (2002). Row...Row...Row Your Boat, Gently Down “the Green.” The River Otter Journal, Fall XI(II): 10-11.
Hasenjager, M.J. (2011). Effects of increased feeding frequency on captive North American river otter (Lontra canadensis) behavior. M.S., Michigan State University. East Lansing, Michigan.
Haskell, S. P. (2006). First record of a river otter (Lontra canadensis) captured on the northeastern coast of Alaska. Canadian Field-Naturalist, 122(2): 235-236.
Hatcher, R.T. (1984). River otters in Oklahoma. Proceedings of the Oklahoma Academy of Science, 64: 17-19.
Hatler, D.F., G. Mowat, and A.M.M. Beal. (2003). Fur bearer management guidelines: River otter (Lontra canadensis). British Columbia Trappers Association. 10 pp.
Hayward, J.L. Jr., C.J. Amlaner Jr., W.H. Gillett, and J.F. Stout. (1975). Predation on nesting gulls by a river otter in Washington State. The Murrelet, 56(2): 9-10.
Hazzard, A.M., C.R. Griffin, E.P. Orff, and G.S. Jones. (1993). Assessment of river otter harvests in New Hampshire. Northeast Wildlife, 50: 77-84.
Hecker, M.K., L.K. Duffy, G.M. Blundell, and T.R. Boyer. (1997). River otters as sentinel species: effect and detection of crude oil on the fur of river otters. In: Ottum, N.D, (ed.).Proceedings of the 5th International Conference on Effects of oil on Wildlife.
Helon, D.A., J.T. Anderson, C.P. Dwyer, and J.W. Edwards. (2004). Summer home range size and habitat use by river otters in Ohio. IUCN Otter Specialist Group Bulletin, 21A.
Helon, D.A. (2006). Summer home range, habitat use, movements, and activity patterns of river otters (Lontra canadensis) in the Killbuck Watershed, northeastern Ohio. M.S., West Virginia University. Morgantown, West Virginia.
Helon, D.A., C.P. Dwyer, M.D. Witt, J.W. Edwards, and J.T. Anderson. (2013). Summer movements and activity patterns of river otters in northeastern Ohio, U.S.A. Proceedings of the International Academy of Ecology and Environmental Sciences, 3(3): 181-190.
Henderson, C. (1978). Minnesota river otter status report: 1977. Minnesota Wildlife Research Quarterly, 38(4): 251-254.
Henny, C.J., L.J. Blus, S.V. Gregory, and C.J. Stafford. (1981). PCBs and organochlorine pesticides in wild mink and river otters from Oregon. pp. 1763-1780. In: Chapman, J.A. and D. Pursley (eds.). Proceedings of the Worldwide Furbearer Conference, Vol. 3, Frostburg, Maryland.
Henny, C.J. (1991). Chemicals in mink and otter from the Columbia River area and population studies. p. 19. In: Addison, E.M., G.A. Fox, and M. Gilbertson. (eds.). Proceedings of the expert consultation meeting on mink and otter. March 5 and 6, 1991. Sponsored by Environment Canada and Ontario Ministry of Natural Resousrces, Windsor, Ontario.
Henny, C.J., R.A. Grove, and O.R. Hedstrom. (1996). A field evaluation of mink and river otter on the lower Columbia River and their influence of environmental contaminants. Final report to: The Lower Columbia River Bi-State Water Quality Program.
Henson, R., E. Raskin, S.L. Deem, and K.L. Vaughn (1997). What is your diagnosis? A river otter with anemia. Veterinary Clinical Pathology. 26(1): 14, 18-19.
Hernandez-Divers, S.M., G.V. Kollias, N. Abou-Madi, and B.K. Hartup. (2001). Surgical technique for intra-abdominal radio transmitter placement in North American river otters (Lontra canadensis). Journal of Zoo and Wildlife Medicine, 32(2): 202-205.
Herreman, J. and M. Ben-David. (2002). Population survey for river otters in Rocky Mountain National Park. The River Otter Journal, XI(I).
Hickey, B. (2016). Yes, more otters are calling the Schuylkill River home. PhillyVoice, June 22, 2016.
Hill, E.P. and J.W. Lovett. (1975). Pesticide residues in beaver and river otter from Alabama. Proceedings of the Southeastern Association of Game and Fish Commissioners, 29: 365-369.
Hill, E.P. (1978). Current harvest and regulation of trade of river otters in the southeastern United States in 1978. pp. 164-172. In: Odum, R.R. and L. Landers, (eds.). Proceedings of Rare and Endangered Wildlife Symposium. Georgia Department of Natural Resources Game and Fish Division, Technical Bulletin, WK4. 184 pp.
Hill, E.P. and V. Lauhachinda. (1981). Reproduction in river otters from Alabama and Georgia. pp. 478-486. In: Chapman, J.A. and D. Pursley (eds.). Worldwide Furbearer Conference Proceedings. Worldwide Furbearer Conference, Inc.
Hill, E.P. and R.R.P. Stardom. (1983). River otter (Lutra canadensis). Pp.176-181. In: Deems Jr., E.F. and D. Pursley. (eds.). North American Furbearers; A Contemporary Reference, Worldwide Furbearer Conference, Inc. 228 pp.
Hoberg, E.P., C.J. Henny, O.R. Hedstrom, and R.A. Grove. (1997). Intestinal helminths of river otters (Lutra canadensis) from the Pacific Northwest. The Journal of Parasitology, 83(1): 105- 110.
Holcombe, J. (1980). Winter food habits of the river otter in southern Louisiana. M.S., Louisiana State University, Baton Rouge.
Holdhusen, A. (2011). Distribution of river otter (Lontra canadensis) within the Mississippi National River and Recreation Area: Results of a two year study of winter sign surveys. National Park Service. 3pp.
Home, W. (1982). Ecology of river otters (Lutra canadensis) in marine coastal environments. M.S., University of Alaska. Fairbanks, Alaska.
Hooper, E.T. and B.T. Ostenson. (1949). Age groups in Michigan otter. Occasional Papers of the Museum of Zoology of the University of Michigan, 518: 1-22.
Hoover, J.P. (1984). Surgical implantation of radiotelemetry devices in American river otters. Journal of the American Veterinary Medical Association, 185: 1317-1320.
Hoover, J., C. Root, and M. Zimmer. (1984). Clinical evaluation of American river otters in a reintroduction study. Journal of the American Veterinary Medical Association, 185: 1321-1326.
Hoover, J.P. (1985). Electrocardiograms of American river otters (Lutra canadensis) during immobilization. Journal of Wildlife Disease, 21(3): 331-334.
Hoover, J.P., R.J. Bahr, M.A. Nieves, R.T. Doyle, M.A. Zimmer, and S.E. Lauzon. (1985). Clinical evaluation and prerelease management of American river otters in the second year of a reintroduction study. Journal of the American Veterinary Medical Association, 187: 1154-1161.
Hoover, J.P., A.E. Castro, and M.A. Nievis. (1985). Serological evaluation of vaccinated American river otters. Journal of the American Veterinary Medical Association, 187: 1162-1165.
Hoover, J.P. and E.G. Jones. (1986). Physiologic and electrocardiographic responses of American river otters (Lutra canadensis)during chemical immobilization and inhalation anesthesia. Journal of Wildlife Diseases, 22: 557-563.
Hoover, J.P. and R.D. Tyler. (1986). Renal function and fractional clearances of the American river otters (Lutra canadensis). Journal of Wildlife Diseases, 22: 547-556.
Hinton, R. (2007). River otters make comeback (in North Dakota). The River Otter Journal, XVI(I): 5.
Hubbard, B. and T. Serfass. (2004). Assessing the distribution of reintroduced populations of river otters in Pennsylvania (USA)-development of a landscape-level approach. IUCN Otter Specialist Group Bulletin, 21(2): 63-67.
Humphrey, R. and S. Zinn. (1982). Seasonal habitat use by river otters and Everglades mink in Florida. Journal of Wildlife Management, 46: 375-381.
Indiana Department of Natural Resources. (2017). Indiana river otter trapping: River otter trapping season. May 14, 2017. Online. Access: https://secure.in.gov/dnr/fishwild/8449.htm
Israels, J, 2nd. (1942). Fetch otties! World’s only trained otter herd. Saturday Evening Post, 214:16.
Jackson, M.A., D. Fertland, and J.F. Bergan. (1998). Recent records of the river otter (Lutra canadensis) along the Texas coast. Texas Journal of Science, 50: 243-247.
Jalkotzy, M. (1980). River otter reintroduction feasibility study, Kananaskis County, Alberta. Unpublished report. University of Calgary. Calgary, Alberta.
Jeffress, M.R., C.P. Paukert, J.B. Whittier, B.K. Sandercock, and P.S. Gipson. (2011). Scale- dependent factors affecting North American river otter distribution in the Midwest. The American Midland Naturalist, 166(1): 177-193.
Jeffress, M.R., C.P. Paukert, B.K. Sandercock, and P.S. Gipson. (2011). Factors affecting detectability of river otters during sign surveys. Journal of Wildlife Management, 75: 144-150.
Jenkins, D.H. (1951). What we otter know. Michigan Conservation, 20(2): 9-10, 23-24.
Jenkins, J.H. (1983). The status and management of the river otter (Lutra canadensis) in North America. Acta Zoologica Fennica, 174: 233-235.
Johnson, C.J., D.P. Hodder, and S. Crowley. (2013). Assessing noninvasive hair and fecal sampling for monitoring the distribution and abundance of river otter. Ecological Research, 28(5): 881- 892.
Johnson, S.A. and R.F. Madej. (1994). Reintroduction of the river otter in Indiana: feasibility study. Final Report. Indiana Department of Natural Resources. 30 pp.
Johnson, S.A., and K.A. Berkley. (1999)a. Restoring river otters in Indiana. Wildlife Society Bulletin, 27: 419-427.
Johnson, S.A. and K.A. Berkley. (1999)b. Construction of a natal den by an introduced river otter, Lutra canadensis, in Indiana. The Canadian Field-Naturalist, 113(2): 301-304.
Johnson, S.A., K.A. Berkley, and C. Jones. (1999). Indiana river otter reintroduction program. Indiana Division of Fish and Wildlife, Work Plan #98410.
Johnson, S.A., K.A. Berkley, and C. Jones. (2000). Indiana river otter reintroduction program-1999. The River Otter Journal, IX(I): 9.
Johnson, S.A., H.D. Walker, C.M. Hudson, T.R. Hewitt, and J.S. Thompson. (2007). Prospects for restoring river otters in Indiana. Proceedings of the Indiana Academy of Science, 116(1): 71-83.
Johnson, T. (1994). River otter survey results. Unpublished Report. National Park Service: Rocky Mountain National Park, Colorado.
Johnson, T. (1996). River otter survey results. Unpublished Report. National Park Service: Rocky Mountain National Park, Colorado.
Johnson, T. (2001). More fall 2001 otter updates: Unusual incident reported in Florida. The River Otter Journal, X(II).
Johnston, T. (2000). River otter trapping. The River Otter Journal, IX(I): 12.
Johnston, T. (2003). "Any Otters for Me?" The River Otter Journal, XII(I): 4-5.
Johnstone, P. (1978). Breeding and rearing the Canadian otter at Mole Hole Wildlife Park 1966-1977. International Zoo Yearbook, 18: 143-147.
Jones, C. (2000). Investigations of prey and habitat use by the river otter (Lutra canadensis) near San Juan Island, Washington. M.S., Western Washington University. Bellingham, Washington.
Just, E.H. (2007). Effectiveness of bridge-sign surveys on determining river otter presence. M.S., Frostburg State University. Frostburg, Maryland.
Just, E., S.S. Stevens, R.M. Spinola, and T.L. Serfass. (2012). Detecting river otter (Lontra canadensis) latrines near bridges: Does habitat and season influence survey success? Wildlife Biology, 18: 264-271.
Kane, K.K. (1979). Medical management of the otter. pp.100-103. In: Proceedings of the Annual Meeting of the American Association of Veterinarians.
Kannan, K., R.A. Grove, K. Senthilkumar, C.J. Henny, and J.P. Giesy. (1999). Butylin compounds in river otters (Lontra canadensis) from Northwest United States. Archives of Environmental Contamination and Toxicology, 36(4): 462-468.
Kannan, K., J. Newsted, R.S. Halbrook, and J.P. Giesy. (2002). Perfluorooctane sulfonate and related hydrocarbons in mink and river otters from the United States. Environmental Science and Technology, 36(4): 462-468.
Karnes, M.R. and R. Tumlison. (1984). The river otter in Arkansas. III. Characteristics of otter latrines and their distribution along beaver-inhabited watercourses in southwestern Arkansas. Proceedings of the Arkansas Academy of Science, 38: 56-59.
Karns, P.D. (1977). Beaver and otter harvest survey, 1976. Minnesota Wildlife Research Quarterly, 37(2): 135-143.
Kauffman, J. (2011). Dietary preferences, parasitic infections, and spatial dynamics of Nearctic river otters (Lontra canadensis) in Pennsylvania and New Jersey. M.S., East Stroudsburg University. East Stroudsburg, Pennsylvania.
Kaukl, M.O. (1950). Game farm otter. Wisconsin Conservation Bulletin, 15(12): 21-22.
Ke Chung, K. and K.C. Emerson. (1974). Latagophthirus rauschi, new genus and new species (Anoplura:Echinophthiriidae) from the river otter (Carnivora: Mustelidae). Journal of Medical Entomology, 11(4): 442-446.
Keith, E.F. (1944). Facts about otters. Outdoorsmen, Chicago, 86: 26-28.
Kellnhauser, J.T. (1970). Observations on limb amputation in the Canadian otter. International Zoo Yearbook, 10: 170-171.
Kellnhauser, J.T. (1983). The acceptance of Lontra (Gray) for the New World river otters. Canadian Journal of Zoology, 61(1): 278-279.
Kennedy, K. (1968). River otter feeding on glaucous-winged gull. Blue Jay, 26: 109.
Kiesow, A.M. (2003). Feasibility of reintroducing the river otter (Lontra canadensis) in South Dakota. M.S., South Dakota State University. Brookings, South Dakota.
Kiesow, A.M., and C.D. Dieter. (2003). Status and distribution of river otters (Lontra canadensis) in South Dakota. Proceedings of the South Dakota Academy of Science, 82: 79-87.
Kiesow, A. and C.D. Dieter. (2005). Availability of suitable habitat for northern river otters in South Dakota. Great Plains Research, 15: 31-44
Kilham, L. (1982)a. Common crows pulling the tail and stealing food from river otter. Florida Field Naturalist. 10: 39-40.
Kilham, L. (1982)b. Behavior of river otters by a water hole in a drought year. Florida Field Naturalist, 10(3): 60.
Kim, K. and K. Emerson. (1974). Latagophthirus rauschi, new genus and new species (Anoplura: Echinophthiriidae) from the river otter (Carnivora: Mustelidae). Journal of Medical Entomology, 11: 442-446.
Kimber, K.R. and G.V. Kollias. (2000). Infectious and parasitic diseases and contaminant-related problems of North American river otters (Lontra canadensis): A review. Journal of Zoo and Wildlife Medicine, 31(4): 452-472.
Kimber, K.R., G.V. Kollias, and E.J. Dubovi. (2000). Serologic survey of selected viral agents in recently captured wild North American river otters (Lontra canadensis). Journal of Zoo and Wildlife Medicine, 31(2): 168-175.
Kimber, K., G.V. Kollias, and E.J. Dubovi. (2000). Serological survey of selected viral agents in recently captured wild river otters (Lontra canadensis). pp. 443-448. In: Fowler, M.E. and R.E.   Miller, (eds.). Zoo and Wild Animal Medicine, W.B. Saunders, Philadelphia.
Kimber, K. and G.V. Kollias. (2005). Evaluation of injury severity and hematologic and plasma biochemistry values for recently captured North American river otters (Lontra canadensis). Journal of Zoo and Wildlife Medicine, 36(3): 371-384.
Kinlaw, A.(2004). High mortality of Nearctic river otters on a Florida, USA Interstate highway during an extreme drought. IUCN Otter Specialist Group Bulletin, 21(2): 76-88.
Kinsey, C. (1981). Experimental otter census. pp.149-150. In: Joselyn, B. and S. Spollman (eds.). Wildlife Populations and Research Unit Project Descriptions. Section of Wildlife, Minnesota Department of Natural Resources, St. Paul.
Kirk, D. (1975). River otter survey progress report. Sacramento, California. California Department of Fish and Game. Nongame Wildlife Investigation. 10 pp.
Klenavic, K., L. Champoux, M. O’Brien, P. Daoust, R. Evans, and H. Evans. (2008). Mercury concentrations in wild mink (Mustela vison) and river otters (Lontra canadensis) collected from eastern and Atlantic Canada: Relationship to age and parasitism. Environmental Pollution, 156: 359-366.
Klomp. J.A. (2007). A river otter runs through it: a population genetic analysis of otters in Oregon following recolonization. M.S., Central Michigan University. Mount Pleasant, Michigan.
Knaus, R.M., N. Kinler, and R. Linscombe. (1983). Estimating river otter populations: The feasibility of 65Zn to label faeces. Wildlife Society Bulletin, 11: 375-377.
Knudsen, G.J. (1956)a. Preliminary Otter Investigations-Wisconsin. P. R. Project #W-79-R-1, Job#1- A: 131-147.
Knudsen, G.J. (1956)b. Forest game and range research project: Preliminary otter investigations (Job Completion Report W-079 R-O1). Wisconsin Conservation Department.
Knudsen, G.J. and J.B. Hale. (1968). Food habits of otters in the Great Lakes Region. The Journal of Wildlife Management, 32(1): 89-93.
Koepfli, K.P. and R.K. Wayne. (1998). Phylogenetic relationships of otters (Carnivora: Mustelidae) based on mitochondrial cytochrome b sequences. Journal of Zoology, 246(4): 401-416.
Kohn, B.E. and J.E. Ashbrenne. (1984). Harvest and population status of river otter in Wisconsin.Wisconsin Department of natural Resources. Research Report #129.
Kohn, B.E. and A.M. Roth. (2003). Development of an aerial otter survey in Wisconsin. Pittman Robertson Final Report. Wisconsin Department of Natural Resources, Madison
Kolba, N. (2015a). Population Genetics of the North American River Otter (Lontra canadensis). M.S., East Stroudsburg University. East Stroudsburg, Pennsylvania.
Kolba, N. (2015b). Babeisa spp. in North American River Otters (Lontra canadensis), beavers (Castor canadensis), Muskrats (Ondatra zibethicus) and mink (Neovison vison) in Pennsylvania and New Jersey. A lab report on file with the Wildlife DNA Laboratory, East Stroudsburg University. East Stroudsburg, Pennsylvania.
Kollars, T.M. Jr., R.E. Lizotte Jr., and W.E. Wilhem. (1997). Gastrointestinal helminths in the river otter (Lutra canadensis) in Tennessee. The Journal of Parasitology, 83(1): 158-160.
Kollias, G. (1999). Health assessment, medical management, and prerelease conditioning of translocated North American river otters. pp. 443-448. In: Fowler, M.W. and R.E. Miller (eds.). Zoo and Wild Animal Medicine, Current Therapy 4. W.B. Saunders, Philadelphia.
Kollias, G. (2003). Health Assessment, Medical Management, Prerelease Conditioning of Translocated North American River Otters. In: Fowler, M.W. and R.E. Miller. (eds.). Zoo and Wild Animal Medicine, 5th edition. Saunders, St. Louis, Missouri
Kruuk, H. (1995). Wild Otters: Predation and Populations. Oxford University Press. 290 pp.
Kruuk, H. (2006). Otters: ecology, behaviour and conservation. Oxford: Oxford University Press. 265 pp.
Kucera, E. (1983). Mink and otter as indicators of mercury in Manitoba waters. Canadian Journal of Zoology, 61(10): 2250-2256.
Kuehn, D.W. and W.E. Berg. (1983). Use of radiographs to age otters. Wildlife Society Bulletin, 11(1): 68-70.
Kuhn, R.A. and W. Meyer. (2010). Comparative hair structure in the Lutrinae (Carnivora: Mustelidae). Mammalia, 74: 291-303
Lacki, M.J. (2011). Distribution and ecology of the North American river otter (Lontra canadensis) in Kentucky: non-technical summary. College of Agriculture, University of Kentucky.
Lacki, M.J. and E.E. Barding. (2012). Research on North American river otters in Kentucky: recovery, ecological impacts, and population dynamics. Kentucky Woodlands Magazine, 6(3): 16-17.
Lagler, K.F. and B.T. Ostenson. (1942). Early spring food of the otter in Michigan. The Journal of Wildlife Management, 6(3): 244-254.
Lancia, R.A. and J.D. Hair. (1983). Population status of bobcat (Felis rufus) and river otter (Lutra canadensis) in North Carolina. North Carolina State University, Project E-1, Raleigh, North Carolina.
Lander, A. (2015). Art Lander's Outdoors: Once endangered river otters now likely to be found in Kentucky for generations. Northern Kentucky Tribune, December 15. Access at www.nkentuckytribune.com.
Lang, H. (1924). Position of limbs in the sliding otter. Journal of Mammalogy, 5: 216-217.
Lankester, M.W. and V.J. Critchton. (1972). Skrjabingylus lutrae n. sp. (Nematoda: Metastron- gyloides) from otter (Lutra canadensis). Canadian Journal of Zoology, 50(3): 337-340.
Lariviere S. and L.R. Walton. (1998). Lontra canadensis. Mammalian Species. American Society of Mammalogists, 587: 1-8.
Larsen, D.N. (1983). Habitats, movements and foods of river otters in coastal southeastern Alaska. M.S., University of Alaska. Fairbanks, Alaska.
Larsen, D.N. (1984). Feeding habits of river otters in coastal southeastern Alaska. The Journal of Wildlife Management, 48(4): 1446-1452.
Larsen, D.N. (unk). Habitat use by river otter (Lontra canadensis) in southeastern Alaska. Unpublished report to the Alaska Cooperative Wildlife Research Unit. University of Alaska. Fairbanks, Alaska.
Latch, E.K., D.G. Scognamillo, J.A. Fike, M.J. Chamberlain, and O.E. Rhodes Jr. (2008). Deciphering ecological barriers to North American river otter (Lontra canadensis) gene flow in Louisiana Landscape. Journal of Heredity, 99(3): 265-274.
Laughlin, J. (1955). River otter noted east of Sierran Crest. California Fish and Game, 41: 189.
Lauhachinda, V. and E.P. Hill. (1977). Winter food habits of river otters from Alabama and Georgia. Proceedings of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies, 3: 320-326.
Lauhachinda, V. (1978). Life history of the river otter in Alabama with emphasis on food habits. Ph.D., Auburn University, Auburn, Alabama.
Lazell, J.D. , Jr. (1983). A river otter (Lutra canadensis) of record size. Canadian Field- Naturalist, 97(2): 225-226.
LeBlanc, F.A., D. Gallant, L. Vasseur, and L. Leger. (2007). Unequal summer use of beaver ponds by river otters: Influence of beaver activity, pond size, and vegetation cover. Canadian Journal of Zoology, 85(7): 774–782.
Lehman, L.E. (1979). The feasibility of river otter reintroduction in Indiana. Final Report. Indiana Department of Natural Resources. 19 pp.
Leonardi, M.S. and R.L. Palma. (2013). Review of the systematics, biology and ecology of lice from pinnipeds and river otters (Insecta: Phthiraptera: Anoplura: Echinophthiriidae). Zootaxa, 3630(3): 445-466.
Liers, E.E. (1951)a. Notes on the river otter (Lutra canadensis). Journal of Mammalogy, 32(1): 1-9.
Liers, E.E. (1951)b. My friends the land otters. Natural History, September. 320-326.
Liers, E.E. (1954). An Otter's Story. The Viking Press, New York. 191 pp.
Liers, E.E. (1958). Early breeding in the river otter. Journal of Mammalogy, 39: 438-439.
Liers, E.E. (1960). Notes on breeding the Canadian otter. International Zoo Yearbook, 2: 84-85.
Liers, E.E. (1966). Notes on breeding the Canadian otter (Lutra canadensis) in captivity and longevity records of beavers (Castor canadensis). International Zoo Yearbook, 6: 171-172.
Ligon, D.B. and J. Reasor. (2007). Predation on alligator snapping turtles (Macrochelys temminckii) by northern river otters (Lontra canadensis). The Southwestern Naturalist, 52(4): 608-610.
Lizotte, R.E. (1994). Biology of the river otter (Lutra canadensis). M.S., Memphis State University. Memphis, Tennessee.
Lizotte R.E Jr. and M.L. Kennedy. (1997). Demography and food habits of the river otter (Lutra canadensis) in western Tennessee. Journal of the Tennessee Academy of Science, 72(3-4): 56-62.
Lodgsdon, C.W. (1989). Ecology of reintroduced river otters (Lutra canadensis) in Land Between the Lakes, Kentucky. M.S., Murray State University. Murray, Kentucky.
Loranger, A.J. (1981). Late fall and early winter foods of the river otter Lutra canadensis) in Massachusetts. pp.1976-1987. In: Chapman, J.A. and D. Pursley. (eds.). World Furbearer Conference Proceedings, Vol. 1. World Furbearer Conference, Inc. Frostburg, Maryland, USA.
Lostroh, T. and A. Ziegler. (2009). UNL wildlife unit tracks otters by collecting scats. Daily Nebraskan.10/29/09.
Loupelle, C. (2004). Genotoxicity of methylmercury in North American river otters (Lutra canadensis). M.S., McGill University. Montreal, Quebec.
Macdonald, S. and C. Mason. (1990). Threats. pp. 11-14. In: Foster-Turley, P., S. Macdonald and C. Mason. (eds.). Otters: An Action Plan for Their Conservation. Proceeding of the International Union for the Conservation of Nature, Otter Specialist Group Meeting, Gland, Switzerland. 126 pp.
Mack, C.M. (1985). River otter restoration in Grand County, Colorado. M.S., Colorado State University. Fort Collins, Colorado.
Magoulick, D.D. (unk). Effects of otter (Lontra canadensis) predation on stream communities. Active/Completed Projects, Wildlife Management, Arkansas Cooperative Fish and Wildlife research unit. Note: this is a project outline (V. Camp)
Magoun, A.J. and P. Valkenburg. (1977). The river otter (Lutra canadensis) on the north slope of the Brooks Range, Alaska. The Canadian Field-Naturalist, 91: 303-305.
Malville, L. (1990). Movements, distribution, and habitat selection of river otters reintroduced into the Delores River, southwestern Colorado. M.S., University of Colorado, Boulder.
Manning, T. (1990). Summer feeding habits of river otter (Lutra canadensis) on the Mendocino National Forest, California. Northwestern Naturalist, 71(2): 38-42.
Mark, G.S., R.G. Linscombe, N.W. Kinler, R.M. Knaus, and V.L. Wright. (1988). Population estimates of river otters in a Louisiana coastal marshland. Journal of Wildlife Management, 52(3): 512-515.
Marr, P. (1950). Emil Liers, The otter man. Nature Magazine, 43(3): 127-129.
Martin, D.J., J.D. Erb, B.R. McMillan, J.R. Fieberg, and T.A. Gorman. (2003). River otters in southeastern Minnesota: Activity patterns and an index of populations based on aerial snow-track surveys. pp. 97-106. In: DonCarlos, M.W., R.O. Kimmel, J.S. Lawrence, and M.S. Lenarz. (eds.). Summaries of Wildlife Research Findings. Minnesota Department of Natural Resources, St. Paul, MN.
Martin, D.J. (2007). River otters in southeastern Minnesota: Activity patterns and an aerial snow-track survey to index populations. M.S., Minnesota State University. Mankato, Minnesota.
Martin, D.J., B.R. McMillan, J.D. Erb, T.A. Gorman, and D.P. Walsh. (2010). Diel activity patterns of river otters (Lontra canadensis) in southeastern Minnesota. Journal of Mammalogy, 91(5): 1213-1224.
Mason. C.F. and S.M. Macdonald, (1986). Otters: Ecology and Conservation. Cambridge University Press, New York & Cambridge.
Mason, C. (1990). An introduction to the otters. pp. 4-7. In: Foster-Turley, P., S. Macdonald, and C. Mason (eds.). Proceedings of the International Union for the Conservation of Nature, Otter Specialist Group Meeting. Gland, Switzerland. 126 pp.
Maxfield, B., T. Bonzo, C. McLaughlin, and K. Bunnell. (2005). Northern river otter management plan. DWR Publication 04–30, Utah Division of Wildlife Resources, Salt Lake City.
Mayack, D.T. (2012). Hepatic mercury, cadmium, and lead in mink and otter from New York state: Monitoring environmental contamination. Environmental Monitoring and Assessment, 184(4): 2497-2516.
Maysyada, M. (1998). No nonsense beaver and otter trapping. 65 pp. Available from rpoutdoors.com
McClellan, J. (1954). An otter catch on the Gila River on southeastern New Mexico. Journal of Mammalogy, 35(3): 443-444.
McCullough, C.R., L.D. Heggemann, and H. Clifford. (1986). A device to restrain river otters. Caldwell Wildlife Society Bulletin, 14(2): 177-180.
McDaniel, J.C.(1963). Otter population study. Proceedings of the Southeastern Association of Game and Fish Commissioners, 17: 163-168.
McDonald, K.P. (1989). Survival, home range, movements, habitat use, and feeding habits of reintroduced river otters in Ohio. M.S., Ohio State University. Columbus, Ohio.
McElwee, B. (2008). The use of molecular scatology to study river otter (Lontra canadensis) genetics. M.S., Rochester Institute of Technology, Henrietta, New York.
McEwen, M.M., P.F. Moon-Massat, E.C. Butler, and G.V. Kollias. (2001). Polymerized bovine hemoglobin (oxyglobin solution) administration in two river otters (Lutra canadensis). Veterinary Anesthesia and Analgesia, 28: 214–219.
Mearns, E.A. (1891). Notes on the otter (Lutra canadensis) and skunks (genera Spilogale and Mephitis) of Arizona. Bulletin of the American Museum of Natural History, 3: 252-256
Mech, L.D. (2002). Incidence of mink (Mustela vison) and river otter (Lutra canadensis) in a highly urbanized area. Canadian Field-Naturalist, 117: 115-116.
Mellen, J.D., V.J. Stevens, and H. Markowitz. (1981). Environmental enrichment for servals, Indian elephants and Canadian otters at Washington Park Zoo, Portland. International Zoo Yearbook, 21: 196-201.
Melquist, W. (1981). Ecological aspects of a river otter (Lutra canadensis) population in west-central Idaho. Ph.D., University of Idaho, Moscow.
Melquist, W.E. (1985). An overview of research on the North American river otter. Idaho Department of Fish and Game, Boise.
Melquist, W.E. and M.G. Hornocker. (1979)a. Methods and techniques for studying and censusing river otter populations. Technical Report. No. 8. Forestry, Wildlife, and Range Experiment Station, University of Idaho, Moscow. 17 pp.
Melquist, W.E. and M.G. Hornocker. (1979)b. Development and use of a telemetry technique for studying river otter. Proceedings of the International Conference for Wildlife Biotelemetry, 2: 104-114.
Melquist, W.E., J.S. Whitman, and M.G. Hornocker. (1981). Resource partitioning and coexistence of sympatric mink and river otter populations. pp. 187-220. In: Chapman, J.A. and D. Pursley. (eds.). Worldwide Furbearer Conference Proceedings, August 3-11, 1980. Frostburg, Maryland.
Melquist, W.E. and M.G. Hornocker. (1983). Ecology of river otters in west central Idaho. Wildlife Monographs, 83: 1-60.
Melquist, W.E. and A.E. Dronkert. (1987). River otters. pp. 625-641. In: Novak, M., J.A. Baker, M.E. Obbard, and B. Malloch (eds.). Wild Furbearer Management and Conservation in North America. Ontario Ministry of Natural Resources, Toronto, Ontario. 1150 pp.
Melquist, W.E., P.J. Polechla, and D. Toweill. (2003). River otter (Lontra canadensis).pp. 708–734. In: Feldhamer, G.A., B.C. Thompson, and J.A. Chapman (eds.). Wild Mammals of North America: Biology, Management, and Conservation. 2nd ed. The Johns Hopkins University Press, Baltimore, Maryland.
Merilees, W.J. (1981). Berry eating otters. Discovery, 10(3): 69-70.
Meronk, S.E., C.C. Day, E. Flaherty, and P.A. Zollner. (2015). Investigating the impact of invasive Asian carp on river otter diet and the native fish communities of Indiana. The Summer Undergraduate Research Fellowship (SURF) Symposium. Paper 102. Purdue University. West Lafayette, Indiana.
Meyerriecks, A.J. (1963). Florida otter preys on common gallinule. Journal of Mammal Research, 44: 425-426.
Mierle, G., E.E.M. Addison, K.S. MacDonald, and D.G. Joachim. (2000). Mercury levels in tissues of otters from Ontario, Canada: Variation with age, sex, and location. Environmental Toxicology and Chemistry, 19(12): 3044–3051.
Miller, C.A., A.L. Stephenson, M.E. McCleary, L.A. Schweize, and L.K. Campbell. (2014). Illinois Otter Trapper Report. INHS Technical Report, (30). 25 pp.
Miller, M.C. (1992). Reintroduction of river otters into Great Smoky Mountain National Park. M.S., University of Tennessee. Knoxville, Tennessee.
Mills, M. (2004). Scat-marking by river otters in Pennsylvania and Maryland. M.S., Frostburg State University, Frostburg, Maryland.
Modafferi, R. and C.F. Yocom. (1980). Summer food of river otter in north coastal California lakes. The Murrelet, 61(1): 38-41.
Moore-Wilson, M. (1898). Florida otter pets. Forest and Stream, 51:48.
Money, D. (2001). Home at last! The River Otter Journal, X(I): 8-9, 12.
Morabito, P. and M. Dunn. (2008). Injection training 1.1 North American river otters using a PVC Chute. Animal Keepers Forum, 35(3): 106-8.
Morabito, P. and M.J. Bashaw. (2012). A survey of abnormal repetitive behaviors in North American river otters housed in zoos. Journal of Applied Animal Welfare Science, 15(3): 208-211.
Morejohn, G.V. (1969). Evidence of river otter feeding on freshwater mussels and range extension. California Fish and Game, 55: 83-85.
Mos, L., P.S. Ross, D. McIntosh, and S. Raverty. (2003). Canine distemper virus in river otters in British Columbia as an emergent risk for coastal pinnnipeds. Veterinary Record, 152(8): 237-239.
Moss, T. (2013). Otter make major comeback in Illinois. The (Champaign) News-Gazette. December 29.
Moss, M.L. (2015). An ethnozooarchaelogical study of land otters and people at Kit’n’Kaboodle, (49-DIX-46). Dall Island, Alaska. BC Studies, 186: 21-55.  
Mowbray, E.E, J.A. Chapman, and J.R. Goldsberry. (1976). Preliminary observations on otter distribution and habitat preferences in Maryland with descriptions of otter field sign. Transactions of Northeast Section of the Wildlife Society, 33: 125-131.
Mowbray, E.E., D. Pursley, and J.A. Chapman. (1979). The status, population characteristics, and harvest of the river otter in Maryland. Publications in Wildlife Ecology, No. 2, Maryland Wildlife Administration. 16 pp.
Mowry, R.A. (2010)a. A genetic approach to determine river otter abundance in Missouri. M.S., University of Missouri-Columbia. Columbia, Missouri.
Mowry, R. (2010)b. Missouri research update. The River Otter Journal, XIX(II): 5.
Mowry, R.A., M.E. Gompper, J. Beringer, and L.S. Eggert. (2011). River otter population size estimation using noninvasive latrine surveys. The Journal of Wildlife Management, 75: 1625- 1636.
Mowry, R. A., T.M. Schneider, E.K. Latch, M.E. Gompper, J. Beringer, and L.S. Eggert. (2015). Genetics and the successful reintroduction of the Missouri river otter. Animal Conservation18(2): 196-206.
Mullhollen, J. (2014). "CSI river otters:" Research Used DNA to Gauge Numbers. Outdoor News, March.
Murphy, S.A., M. Dethier, and K. Dobkowski. (2014). An analysis of San Juan river otter (Lontra canadensis) diets. ResearchWorks, University of Washington. 10 pp.
Mychalluk, M. and E. Watton. (1982). Road-killed river otter near Wandering River, Alberta. Blue Jay, 40(4): 222.
Narurkar, N.S., J.S. Thomas, and D.N. Phalen. (2002). Heinz-body hemolytic anemia associated with ingestion of methylene blue in a river otter. Journal of the American Veterinary Medical Association, 220(3): 363-366.
National Park Service, USDI. (2012). River Otter Overview. Mississippi River and Recreation Area, Minnesota.
Neiffer, D.L., E.C. Klein, P.P. Calle, M. Linn, S.P. Terrell, R.L. Walker, D. Todd, C.C. Vice, and S.K. Marks. (2002). Mortality associated with melarsomine dihydrochloride administration in two North American river otters (Lontra canadensis) and a red panda (Ailurus fulgens fulgens). Journal of Zoo and Wildlife Medicine, 33(3): 242-248.
Nelson, C.J. (2012). Contaminant exposure in marine foraging river otters from Victoria, British Columbia, Canada. M.S., The University of British Columbia, Vancouver, British Columbia.
Nelson, C., K. Drouillard, K. Cheng, J. Elliott, and N. Ismail, N. (2015). Accumulation of PBDEs in an urban river otter population and an unusual finding of BDE- 209. Chemosphere, 118: 322- 328.
Nelson, K.O. (2010)a. Environmental enrichment effects on the activity of a Nearctic river otter. M.S., Rochester Institute of Technology, Henrietta, New York.
Nelson, K.O. (2010)b. The effects of environmental enrichment on a stereotyped swimming pattern for a North American river otter (Lontra canadensis). The River Otter Journal, XVIII(I): 5, 8-10.
Neunteufel, E. (2007). Food washing in captive North American river otters (Lontra canadensis). Ph.D., City University of New York.
Newby, F.E. (1956). A study of the otter's food habits along a segment of the Gallatin River. Montana Fish and Game Department, P-R Job Completion Report, Project W-49-R-6, Job II-K.
Newman, D.G., (1990). Habitat ecology of river otters in central Massachusetts. M.S., University of Massachusetts. Boston, Massachusetts.
Newman, D.G. and C.R. Griffin. (1994). Wetland use by river otters in Massachusetts. Journal of Wildlife Management, 58(1): 18-23.
Newton, D.E. (2009). Northern river otter population assessment and connectivity in western Montana. M.S., University of Montana. Missoula, Montana.
Newton, D. (2010). Upper Clark Fork river otter project. University of Montana. Update and preliminary results.
Newton, D. and K. Forseman. (2010). Update on the distribution and abundance of river otters in the Upper Clark Fork River of western Montana. The River Otter Journal, XIX(II): 5.
Niemuth, J.N., C.W. Sanders, C.B. Mooney, C. Olfenbuttel, C.B. DePerno, and M. Stoskopf. (2014). Nephrolithiasis in free-ranging North American river otter (Lontra canadensis) in North Carolina. Journal of Zoo and Wildlife Medicine, 45(1): 110-117.
Nilsson, G. and A.S. Vaughn. (1978). A turning point for the river otter. National Parks Conservation Magazine, 52: 10-15.
Nilsson, G. (1980)a. Present status of the river otter in the United States. pp. 126-155. In: Duplaix, N. (ed.). Proceedings of the Second Working Meeting of the Otter Specialist Group. Gainsville, Florida.
Nilsson, G. (1980)b. River otter research workshop. Florida State Museum, Gainesville, Florida.
Noll, J. M. (1988). Home range, movement, and natal denning of river otters (Lutra canadensis) at Kelp Bay, Baranof Island, Alaska. M.S., University of Alaska, Fairbanks, Alaska.
Noordhuis, R. (2002). The river otter (Lontra canadensis) in Clarke County, Georgia, USA: Survey, food habits, and environmental factors. IUCN Otter Specialist Bulletin, 19(2): 75-86.
North Dakota Game and Fish. (2016). Game and Fish considering river otter season. Online. Access: https://gf.nd.gov/magazine/2016/nov/otter-season
Northcott, T.H. and D. Slade. (1976). A live trapping technique for river otters. Journal of Wildlife Management, 40: 163-164.
O’Connor, D.J. and S.W. Nielsen. (1981). Environmental survey of methylmercury levels in wild mink (Mustela vison) and otter (Lutra canadensis) from the northeastern United States and experimental pathology of methylmercurialism in the otter. pp. 1728-1745. In: Chapman, J.A. and D. Pursley (eds.). Worldwide Furbearer Conference Proceedings, August, 3-11, 1980. Frostburg, Maryland.
Ohio Division of Wildlife. (2011). River otter bridge survey results, 2011. Waterloo Wildlife Research Station, Athens, Ohio.
Oldham, A.R. and J.M. Black. (2009). Experimental tests of latrine use and communication by river otters. no access Northwestern Naturalist, 90(3): 207-211.
Olson, Z.H., S.S. Stevens, and T.L. Serfass. (2005). Do juvenile Nearctic river otters (Lontra canadensis) contribute to fall scent marking? Canadian Field-Naturalist, 119: 457-459.
Olson, Z.H. (2006). Latrine site visitation and scent marking by river otters: natural history and applications for monitoring. M.S., Frostburg State University. Frostburg, Maryland.
Olson, Z.H., T.L. Serfass, and O.E. Rhodes Jr. (2008). Seasonal variation in latrine site visitation and scent marking by Nearctic river otters (Lontra canadensis). IUCN Otter Specialist Group Bulletin, 25(2): 108-120.
O’Neill, L., A. De Jongh, J. Ozolins, T. De Jong, and J. Rochford. (2007). Minimizing leg-hold trapping trauma for otters with mobile phone technology. The Journal of Wildlife Management, 71(8): 2776-2780.
Organ, J.F. (1989). Mercury and PCB residues in Massachusetts river otters: comparisons on a watershed basis. Ph.D., University of Massachusetts. Amherst, Massachusetts.
Organ, J.F. and C.R. Griffin. (2004). Mercury and PCBs in Massachusetts river otters. IUCN Otter Specialist Group Bulletin, 21A.
Orihel, T.C. (1965). Dirofilaria lutrae sp. n. (Nematoda:Filarioidea) from otters in the southeast United States. Journal of Parasitology, 51(3): 409-13.
Ormseth, O.A. and M. Ben-David. (2000). Ingestion of oil hydrocarbons: Effects on digesta retention times and nutrient uptake in captive river otters. Journal of Comparative Physiology B, 170: 419- 428.
Orr, E. (2007). North American river otter. Chattooga River Conservancy.
Ostroff, A.C. (2001). Distribution and mesohabitat characteristics of river otter in eastern Kansas. M.S., Emporia State University, Emporia, Kansas.
Ott, K. and M. Ben-David. (2004). Estimating river otter abundance and habitat use. The River Otter Journal, XIII(II): 1, 3.
Ott, K., J. DePue, and M. Ben-David. (2005). Estimating the abundance of river otters in Kenai Fjords National Park: An update. The River Otter Journal, XIV(II): 4.
Ott, K.E. (2009). Recolonization or local reproduction? An assessment of river otter recovery in previously-oiled areas of coastal Alaska via non-invasive genetic sampling. M.S., Department of Zoology and Physiology, University of Wyoming. Laramie, Wyoming.
Owens, M., V, Alm, B. Helten, S. Shelly, and J. Reed-Smith. (2009). Summary of Husbandry Guidelines for North American (aka Nearctic) River Otters in Captivity. IUCN/SSC Otter Specialist Group, Otters in Captivity Task Force. 25 pp.
Padgett-Stewart, T.M., T.M. Wilcox, K.J. Carim, K.S. McKelvey, M.K.Young, and M.K. Schwartz. (2016). An eDNA assay for river otter detection: A tool for surveying a semi-aquatic mammal. Conservation Genetics Resources, 8 (1): 5-7.
Palmer, L. (2011). Genetic Structure Analysis of North American River Otters (Lontra canadensis) in Pennsylvania and New Jersey. M.S., East Stroudsburg University. East Stroudsburg, Pennsylvania.
Park, E. (1971). The World of the Otter. J.B. Lippincott, New York. 159 pp.
Parker, B.J. (1982). River otter. Canadian status report for the Committee on International Trade in Endangered Species. Canadian Wildlife Service, Ottawa, Ontario. 35 pp.
Partridge, J. (1997). North American river otters at Bristol Zoo. International Zoo News, 44(8): 466– 472.
Partridge, J. and S. Sykes-Gatz. (2001). North American river otters in European zoos: a husbandry survey. International Zoo News, 48(4): 224-234.
Penak, B. and T. Code. (1987). The river otter live capture program in Ontario, Canada. IUCN Otter Specialist Group Bulletin, 2(1): 12-20.
Penland, T. F. and J. M. Black. (2009). Seasonal variation in river otter diet in coastal northern California. Northwestern Naturalist, 90(3): 233-237.
Peper, S. T., Peper, R. L., Kollias, G. V., Brooks, R. P., Stevens, S. S., & Serfass, T. L. (2014). Efficacy of two canine distemper vaccines in wild Nearctic river otters (Lontra canadensis). Journal of Zoo and Wildlife Medicine, 45(3): 520-526.
Peterle, T.J. (1954). An observation on otter feeding. Journal of Wildlife Management, 18: 141-142.
Peterson, C. (2003). River otter study on Mount Desert Island, Maine. The River Otter Journal, XII(II): 6-7.
Peterson, C. (2009). Fish bones and scat piles: Otters in the wild. The River Otter Journal, XVIII(II): 1, 11.
Pierce, R.M. (1979). The seasonal feeding habits of the river otter (Lutra canadensis) in ditches of the Great Dismal Swamp. M.S., Old Dominion University. Norfolk, Virginia.
Pitt, J.A., W.R. Clark, R.D. Andrews, K.P. Schlarbaum, D.D. Hoffman, and S.W. Pitt. (2003). Restoration and monitoring of the river otter population in Iowa. Journal of the Iowa Academy of Science, 110: 7-12.
Poimiroo, J. (2013). California Rambling: River Otters. Mountain Democrat, p. 4A, June 24,2013.
Polechla, P.J. and J.A. Sealander. (1985). An evaluation of the status of the river otter (Lontra canadensis) in Arkansas (Final Report, Federal Aid Project No. W-56-23). Arkansas Game and Fish Commission.
Polechla, P.J. (1987). Status of the river otter (Lutra canadensis) population in Arkansas with special reference to reproductive biology. Ph.D. University of Arkansas, Fayetteville.
Polechla, P.J. (1988). The Nearctic river otter. Pp. 668-682. In: Chandler, W.J. and L. Labate (eds.). Audubon Wildlife Report 1988/1989. National Audubon Society, New York, New York. 817 pp.
Polechla, P.J. (1989)a. A review of the techniques of radiotelemetry of the Nearctic river otter. pp. 14- 22. In: Amlaner, C.J. (ed.). Biotelemetry X: Proceedings of the Tenth International Symposium on Biotelemetry. University of Arkansas Press, Fayetteville. 733 pp.
Polechla, P.J. (1989)b. More evidence of a commensal relationship between the river otter and the beaver. pp. 217-236. In: Amlaner, C.J. (ed.). Biotelemetry X: Proceedings of the Tenth International Symposium on Biotelemetry. University of Arkansas Press, Fayetteville. 733 pp.
Polechla, P. (1990). Action plan for North American otters. pp. 74-79. In: Foster-Turley, P., S. Macdonald and C. Mason. (eds.). IUCN/SSC. Otters: An Action Plan for their Conservation. Kelvin Press, Broadview, Illinois.
Polechla, P.J. (1991). A preliminary review of the anatomy and physiology of otters (Lutrinae; Mustelidae; Carnivora). pp. 85-94. In: Reuther, C. and R. Rochert. (eds.). Proceedings of the Vth International Otter Symposium. Hankensbüttel, Germany.
Polechla, P.J. (1993). A review of the Nearctic river otter in southwestern North America: Ethnography, distribution, ecology, and taxonomy. River Otter Journal, III: 12-13.
Polechla, P.J. (1996). New host records of ticks (Acarina: Ioxidae) parasitizing the river otter (Lutra canadensis). IUCN Otter Specialist Group Bulletin, 13: 8-13.
Polechla, P. J. Jr., T. Rodgers, and T.R. Meineck (1998). Cranial and Dental Anomalies in the North American River Otter: A comparison of a northern and southern population. IUCN Otter Specialist Group Bulletin, 19A: 267-270.
Polechla, P.J. Jr. and S. Sykes. (1998). Continental report on the situation of the North American river otter. IUCN Otter Specialist Group Bulletin, 19A: 271-275.
Polechla, P.J. (2000)a. A review of the natural history of the river otter (Lontra canadensis) in the southwestern United States with special reference to New Mexico. Final Report to North American Wilderness Recovery, Incorporated. Richmond, Vermont.
Polechla Jr., P.J. (2000)b. Deep Alaskan otter ecology. The River Otter Journal, IX(I): 12, 16.
Polechla, P.J., (2000)c. Ecology of the river otter and other wetland furbearers in the upper Rio Grande. Final Report to Bureau of Land Management, Taos, New Mexico. 226 pp.
Polechla, P.J., Jr. (2001). Tracking tips...otters and other critters. The River Otter Journal, X(II).
Polechla, P.J., Jr. (2002)a. Otter Place Names: You "Otter" Go There. The River Otter Journal, XI(II).
Polechla, P.J., Jr. (2002)b. River otter survey of the San Juan Drainage. The River Otter Journal, XI(II): 5.
Polechla, P.J., A.G. Burns, S. Rist, K.A. Moore, and J.W. Dragoo. (2004). First physical evidence of the Nearctic river otter (Lontra canadensis) collected in New Mexico, USA, since 1953.IUCN Otter Specialist Group Bulletin, 21(2): 70 -75.
Polechla, P. and S. Walker. (2008). Range extension and a case for a persistent population of river otters (Lontra canadensis) in New Mexico. IUCN Otter Specialist Group Bulletin, 25(1): 13-22.
Polechla, P.J., Jr. and E. Carrillo-Rubio. (2009). Historic and current distributions of river otters (Lontra canadensis) and (Lontra longicaudis) in the Río Grande or Río Bravo del Norte Drainage of Colorado and New Mexico, USA and of Chihuahua, Mexico and adjacent areas. IUCN Otter Specialists Group Bulletin, 26(2): 82-96.
Polechla, P. (2010). River otter (Lontra canadensis) dietary study in the Verde River, Arizona: Otter- crayfish ecological interactions. A report commissioned by The Nature Conservancy.
Pollard, L. (1984). Return of the river otter. Outdoor Oklahoma, 40: 2.
Poole, E.L. (1954). The otter, Pennyslvania's rarest furbearer. Pennsylvania Game News, 45: 4-9.
Potter, T.M., J.A. Hanna, and L. Freer. (2007). Human North American river otter (Lontra canadensis) attack. Wilderness and Environmental Medicine, 18(1): 41-44.
Price, M.H.H. and C.E.A. Aries. (2007). A river otter’s (Lontra canadensis) capture of a double- crested cormorant (Phalcrocora auritus) in British Columbian waters. The Canadian Field- Naturalist, 121(3): 325-326.
Probasco, D.J. (2010). Evaluation of mercury levels in river otters of northeastern Texas. M.S., Tarleton State University. Stephenville, Texas.
Pursley. D. (1980). Status and management of the river otter in the United States. pp. 158-194. In: Duplaix, N. (ed.). Proceedings of the second working meeting, Otter Specialist Group, 27-29 March. Gainesville, Florida.
Quinlan, S.E. (1983). Avian and river otter predation in a storm-petrel colony. The Journal of Wildlife Management, 47(4): 1036-1043.
Radinsky, L.B. (1968). Evolution of somatic sensory specialization in otter brains. Journal of Comparative Neurology, 134: 495-506.
Raesly, E.J. (2001). Progress and status of river otter reintroduction projects in the United States. Wildlife Society Bulletin, 29(3): 856-862.
Ralls, K. (1990). Reintroductions. pp. 20-21. In: Foster-Turley, P., S. Macdonald and C. Mason (eds.). IUCN/SSC. Otters: An Action Plan for their Conservation, Broadview, IL. Kelvyn Press.
Reed-Smith, J. (1995). North American river otter (Lontra canadensis): Husbandry Notebook. John Ball Zoological Garden, Grand Rapids, Michigan.
Reed-Smith, J. (1997). North American river otter breeding survey. John Ball Zoo, Grand Rapids, Michigan.
Reed-Smith, J. and P.J. Polechla Jr. (1998). Husbandry and captive breeding of otters (Lutrinae) in North and Latin America: A Synopsis of Current Progress. IUCN Otter Specialist Group Bulletin, 19A: 276-281.
Reed-Smith, J. (1999). Where and when to see otters in zoological parks, aquariums and conservation centers. The River Otter Journal, VIII(II).
Reed-Smith, J . (2000). AAZK and otters. The River Otter Journal, IX(I): 10-11.
Reed-Smith, J. (2006). North American River Otter Husbandry Notebook, 2nd Edition. 2006. AOZ Task Force.
Reed-Smith, J. (2012). North American (Nearctic) river otter (Lontra canadensis) Husbandry Notebook, John Ball Zoological Garden and Core Gorsuch Foundation. 298 pp.
Reed-Smith, J. and H. Bateman. (2003). North American river otters captive breeding study: Reproductive physiology of captive North American river otter (Lontra canadensis). The River Otter Journal, XII(I): 6-8.
Reeves, K.A. (1988). Summer diet and status of river otters on Redwood Creek. M.S., Humboldt State University, Arcata, California.
Reid, D.G. (1984). Ecological interactions of river otters and beavers in a boreal ecosystem. M.S., University of Alberta. Calgary, Alberta.
Reid, D.G., W.E. Melquist, J.D. Woolington, and J.M. Noll. (1986). Reproductive effects of intraperitoneal transmitter implants in river otters. The Journal of Wildlife Management, 50(1): 92-94.
Reid, D.G., M.B. Bayer, T.E. Code, and B. McLean. (1987). A possible method for estimating river otter (Lutra canadensis) populations using snow tracks. Canadian Field-Naturalist, 101: 576- 580.
Reid, D.G., S.M. Herrero, and T.E. Code. (1988). River otters as agents of water loss from beaver ponds. Journal of Mammalogy, 69(1): 100-107.
Reid, D.G., T.E. Code, A.C.H. Reid, and S.M. Herrero. (1994)a. Food habits of the river otter in a boreal ecosystem. Canadian Journal of Zoology, 72(7): 1306-1313.
Reid, D.G., T.E. Code, A.C.H. Reid, and S.M. Herrero. (1994)b. Spacing, movements, and habitat selection of the river otter in boreal Alberta. Canadian Journal of Zoology, 72: 1314-1324.
Reuther, C. and R. Röchert. (1991). Proceedings Vth International Otter Colloquium. Hankensbuttel, Germany. Habitat (Aktion Fischotterschutz) #6 344pp. WR251
Reynolds, R.J., G. Stenson, and E. Miller. (2008). Prey selection by marine coastal river otters (Lontra canadensis) in Newfoundland, Canada. Journal of Mammalogy, 89(4): 1001-1011.
Rhoads, S.N. (1894). New Jersey otters. Friend, 244-245.
Rhoads, S.N. (1898). Contributions to a revision of the North American beavers, otters and fishers. Transactions of the American Philosophical Society, 19: 417-439.
Rice, C.L. and C.J. Kulp. (1992). Concentrations of mercury and organochlorine compounds in river otter prey organisms in Pennsylvania. U.S. Fish Wildlife Service. Pennsylvania Field Office, Special Project Report. 93-103.
Riley, M.A. (1985). An analysis of masticatory form and function in three Mustelids (Martes americana, Lutra canadensis, Enhydra lutris). Journal of Mammalogy, 66(3): 519-528.
Roberts, N.M. (2003). River otter food habits in the Missouri Ozarks. M.S., University of Missouri. Columbia, Missouri.
Roberts, N.M., S.M. Crimmins, D.A. Hamilton, and E. Gallagher. (2008). An evaluation of bridge- sign surveys to monitor river otter (Lontra canadensis) populations. American Midland Naturalist, 160(2): 358-363.
Roberts, N.M., C.F. Rabeni, J.S. Stanovick, and D.A. Hamilton. (2008). River otter (Lontra canadensis) food habits in the Missouri Ozarks. Canadian Field-Naturalist, 122: 303-311.
Roberts, N.M., Crimmins, S.M., Hamilton, D.A., and E. Gallagher. (2012). Implantation and partutition dates of North American river otters (Lontra candensis). Canadian Field-Naturalist. 126(1): 28-30.
Robson, M.S. (1982). Monitoring river otter populations: Scent stations vs. sign indices. M.S., University of Florida. Gainesville, Florida.
Robson, M.S., and S.R. Humphrey. (1985). Inefficacy of scent-stations for monitoring river otter populations. Wildlife Society Bulletin, 13(4): 558-561.
Rock, K.R., E.S. Rock, R.T. Bowyer, and J.B. Faro. (1995). Degree of association and use of a helper by coastal river otters (Lutra canadensis) in Prince William Sound, Alaska. Canadian Field- Naturalist, 108: 367-369.
Roe, A.M. (2008). The effect of coastal river otters (Lontra canadensis ) on the plant community of Prince William Sound, AK, M.S., University of Wyoming. Laramie, Wyoming.
Roe, A.M., C.B. Meyer, N.P. Nibblelink, and M. Ben-David. (2010). Differential tree and shrub production in response to fertilization and disturbance by coastal river otters in Alaska. Ecology, 91(11): 3177-3188.
Rogers, G. (2014). River otters observed living in Lake Tahoe. Tahoe Daily Tribune, March 20.
Ropek, R.M. (1990). Mercury levels in Michigan river otters in relation to population characteristics and habitat. M.S., Eastern Michigan University. Ypsilanti, Michigan.
Ropek, R.M. and R.K. Neely. (1993). Mercury levels in Michigan river otters (Lutra canadensis). Journal of Freshwater Ecology, 8: 141-147.
Rosen, M. (1975). Bald eagle and river otter. Canadian Field-Naturalist, 89: 455.
Rostain, R.R. (2000). Social Behavior and olfactory communication in the North American river otter (Lontra canadensis). M.S., San Francisco State University. San Francisco, California.
Rostain, R.R., M. Ben-David, P. Groves, and J.A. Randall. (2004). Why do river otters scent-mark? An experimental test of several hypotheses. Animal Behaviour, 68: 703-711.
Rothenbacker, H. (1962). Acute microfilariasis of unknown etiology in an otter. Michigan State University Veterinarian, 23: 43-45.
Rothschild, D. (2005). Fecal glucocorticoids: a non-invasive method of measuring stress in river otters. M.S., Frostburg State University. Frostburg, Maryland.
Rothschild, D.M., T.L. Serfass, W.L. Seddon, L. Hegde, and R.S. Fritz. (2008). Using fecal glucocorticoids to assess stress levels in captive river otters. Journal of Wildlife Management, 72(1): 138-142.
Route, W.T. and R.O. Peterson. (1988). Distribution and abundance of river otter in Voyageurs National Park, Minnesota. Resource Management Report MWR-10, USDI National Park Service, Omaha, Nebraska.
Route, W.T. and R.O. Peterson. (1991). An incident of wolf (Canis lupus) predation on a river otter (Lutra canadensis) in Minnesota. Canadian Field-Naturalist, 105(4): 567-568.
Roy. C.C. (1997). River otter restoration in Kansas. 15th Midwest Furbearer Workshop. Carbondale. Illinois. Abstract.
Rucker, D. (1983). River otter restoration. IMPACT.TVA-Natural Resources and the Environment. Chattanooga, Tennessee, 6: 5-7.
Rudd, W., L. Forrest, F. Lindzey, and S.W. Buskirk. (1986). River otters in Wyoming: distribution, ecology, and potential impacts from energy development. Research Report 86- 102, Wyoming Cooperative Research Unit, University of Wyoming, Laramie, Wyoming. Report prepared for Wyoming Wildlife Federation.
Ruez Jr., D. R. (2015). Summer diet characteristics of North American river otters (Lontra canadensis) in central Illinois. The American Midland Naturalist, 173(2): 294-304.
Russell, A. (2015). Dietary patterns of Lontra canadensis in the Lower Snohomish River Estuary, Washington. Northwest Science, 89(2): 182-187.
Ryder, R.A. (1954). Further investigation of fish predation by otter (Lutra c. canadensis), in Michigan. MS. University of Michigan. Ann Arbor, Michigan.
Ryder, R.A. (1955). Fish predation by the otter in Michigan. The Journal of Wildlife Management, 19(4): 497-498.
Sager-Fradkin, K. (2009). Establishing baseline information on river otter use of the lower Elwha River, Olympic Peninsula, Washington. The River Otter Journal, XVIII(I): 4-5, 11.
Satterthwaite-Phillips, D., N. Mateus-Pinilla, K. Cummings, B. Bluett, J. Novakofski, and S. Kuldeep. (2012). River otter reintroduction programs successful, but how are they impacting prey species? Illinois Natural History Survey, Prairie Research Institute, 407: 4-5.
Satterthwaite-Phillips, D., J. Novakofski, and N. Mateus-Pinilla. (2014). Fatty acid analysis as a tool to infer the diet in Illinois river otters (Lontra canadensis). Journal of Animal Science and Technology, 56(1): 16 (multiple pages).
Sauer, T.M, M. Ben-David, and R.T. Bowyer. (1999). A new application of the adaptive-kernel method: Estimating linear home ranges of river otters (Lutra canadensis). Canadian Field- Naturalist, 113: 419-424.
Saunders, B.P. and H. Mechior. (1984). Otter and beaver harvest relationships. Proceedings of the Western Association of Fish & Wildlife Agencies, 64: 143-149.
Savage, M. and J. Klingel. (2003). The case for river reintroduction in New Mexico: a report to the River Otter Working Group. The Four Corners Institute. Santa Fe, New Mexico. pp. 1-10.
Savage, M. (2004)a. Possible otter restoration in New Mexico. The River Otter Journal, XIII(I): 11.
Savage, M. (2004)b. Update on the proposal to restore river otter to New Mexico. The River Otter Journal, XIII(II): 9.
Savage, M. (2007). River otters to jam in New Mexico rivers. The River Otter Journal, XVI(I): 6.
Savage, M. (2008). Otters at liberty in New Mexico rivers. The River Otter Journal, XVII(II): 11.
Savage, M. and L. Klingel. (2015)
Citizen monitoring after an otter restoration (Lontra canadensis) in   New Mexico, USA. IUCN Otter Specialist Group Bulletin32 (1): 21-24
Sawyer, T.K. (1961). The American otter, Lutra canadensis vaga, as a host for two species of trematodes previously unreported from North America. Proceedings of the Helminthological Society of Washington, 28(2): 175-176.
Schackleford, J.T. (1994). Habitat and relative abundance of river otter (Lutra canadensis) in three drainage basins of southeastern Oklahoma. M.S. University of Central Oklahoma. Edmond, Oklahoma.
Schackleford, J.T. and J. Whitaker. (1997). Relative abundance of the northern river otter (Lutra canadensis) in three drainage basins of southeastern Oklahoma. Proceedings of the Oklahoma Academy of Science, 77: 93-98.
Scheffer, V.B. (1939). The os clitorides of the Pacific otter. Murrelet, 20: 20-21.
Scheffer, V.B. (1950). Otters diving to a depth of sixty feet. Journal of Mammalogy, 34: 225.
Scheffer, V.B. (1958). Long life of a river otter. Journal of Mammalogy, 39: 591.
Scheffer, V.B. (1967). Probable mating of otter on Lopez Island, Washington. Murrelet, 48: 20.
Scherr, H. and J. Bowman. (2009). A sex-biased effect of parasitism on skull morphology in river otters. no access Ecoscience, 16(1): 119-124.
Schettler, E., K. Müller, G. Fritsch, S. Kaiser, L. Brunnberg, K. Frolich, and G. Wibbelt. (2007). Progressive ataxia in a captive North American river otter (Lontra canadensis) associated with brain stem spheroid formation. Journal of Zoo and Wildlife Medicine, 38(4): 579-582.
Schlanser, J.R., J.S. Patterson, M. Kiupel, C. Hencken, J.G. Sikarskie, and T.M. Harrison. (2012). Disseminated pheochromocytoma in North America river otter (Lontra canadensis). Journal of Zoo and Wildlife Medicine, 43(2): 407-411.
Schorger, A.W. (1970). The otter in early Wisconsin. Wisconsin Academy of Science, Arts, and Letters, 58: 129-146.
Schreckengast, G.E., M.D. Edwin, and J. Cromer. (1986). Relationships of den sites and habitat use in river otters. Transactions of the Northeast Section, the Wildlife Society, 43: 70.
Schreckengast, G.E., (1988). River otter reintroductions in West Virginia. M.S., West Virginia University. Morgantown, West Virginia.
Schultz, V. (1954). Status of the beaver and otter in Tennessee. Journal of the Tennessee Academy of Science, 29: 73-81.
Scognamillo, D.G. (2005). Temporal and spatial harvest patterns of river otter in Louisiana and its potential use as a bioindicator species of water quality. Ph.D., Louisiana State University. Baton Rouge, Lousiana.
Scordino, J. J., P. J. Gearin, S. D. Riemer, and E. M. Iwamoto. (2016). River otter (Lontra canadensis) food habits in a Washington coast watershed: Implications for a threatened species. Northwestern Naturalist, 97(1): 36-47.
Scott, W.E. (1939). Swimming power of the Canadian otter. Journal of Mammalogy, 20: 371.
Sequeria, G.M. (1993). Evaluation of enrichment devices for captive North American river otters (Lutra canadensis). Animal Keepers Forum, 20(10): 359-363.
Serfass, T.L. (1984). Ecology and feeding relationships of river otter (Lutra canadensis) in northeastern Pennsylvania. M.S., East Stroudsburg University. East Stroudsburg, Pennsylvania.
Serfass, T.L. and L.M. Rymon. (1985). Success of river otters reintroduced into Pine Creek Drainage in northcentral Pennsylvania. Transactions of the Northeast Section of the Wildlife Society, 41: 138-149.
Serfass, T.L., L.M. Rymon, and J.D. Hassinger. (1986). Development and progress of Pennsylvania’s river otter reintroduction program. pp. 332-342. In: Majumdar, S.K., F.J. Brenner, and A.F. Rhoads. (eds.). Endangered and threatened species programs in Pennsylvania and other States: issues and management. Pennsylvania Academy of Science.
Serfass, T.L., L.M. Rymon, and R.P. Brooks. (1987). Further evaluations of river otter translocations in northeastern Pennsylvania. Transactions of The Northeast Section, the Wildlife Society, 44: 103.
Serfass, T.L., R.P. Brooks, J.M. Novak, P.E. Johns, and O.E. Rhodes, Jr. (1988). Genetic variation among populations of river otters in North America: Considerations for reintroduction projects. Journal of Mammalogy, 79(3): 736-746.
Serfass, T.L., L.M. Rymon, and R.P. Brooks. (1990). Feeding relationships of river otters in northeastern Pennsylvania. Transactions of the Northeast Section of the Wildlife Society, 47: 43- 53.
Serfass, T.L., L.M. Rymon, and R.P. Brooks. (1992). Ectoparasites from river otters in Pennsylvania. Journal of Wildlife Disease, 28: 138-140.
Serfass, T.L., R.P. Brooks, and L.M. Rymon. (1993). Evidence of long-term survival and management by translocated river otters (Lutra canadensis). Canadian Field-Naturalist, 107: 59-63.
Serfass, T.L., M.S. Randall, L. Peper, M.T. Whary, and R.P. Brooks. (1993). River otter (Lutra canadensis) reintroduction in Pennsylvania: Prerelease care and clinical evaluation. Journal of Zoo and Wildlife Medicine, 24(1): 28-40.
Serfass, T.L. (1994). Conservation genetics and reintroduction strategies for river otters. Ph.D., The Pennsylvania State University. University Park, Pennsylvania.
Serfass, T.L. (1995). Cooperative foraging by North American river otters (Lutra canadensis). The Canadian Field-Naturalist, 19: 458-459.
Serfass, T.L., R.P. Brooks, T.J. Swimley, L.M. Rymon, and A.H. Hayden. (1995). Considerations for capturing, handling, and translocating river otters. Wildlife Society Bulletin, 24(1): 25-31.
Serfass, T.L., M.T. Whary, R.L. Peper, R.P. Brooks, T.J. Swimley, W.R. Lawrence, and C.E. Rupprecht. (1995). Rabies in a river otter (Lutra canadensis) intended for reintroduction. Journal of Zoo and Wildlife Medicine, 26(2): 311-314.
Serfass, T.L. and R.P. Brooks. (1998). River otter reintroduction; The Pennsylvania Approach. Proceedings VIIth International Otter Colloquium, 308-319.
Serfass, T.L., R.P. Brooks, J.M. Novak, P.E. Johns, and O.E. Rhodes, Jr. (1998). Genetic variation among populations of river otters in North America: Considerations for reintroduction projects. Journal of Mammalogy, 79: 736-746.
Serfass, T.L., R.P. Brooks, L.M. Rymon, and O.E. Rhodes. (1998) River otters in Pennsylvania, USA: Lessons for predator reintroduction. Unpublished manuscript.
Serfass, T.L., M.J. Lovallo, R.P. Brooks, A.H. Hayden, and D.H. Mitcheltree. (1999). Status and distribution of river otters in Pennsylvania following a reintroduction project. Journal of the Pennsylvania Academy of Science, 73: 10-14.
Serfass, T. (2003). Otter action plan. The River Otter Journal, XII(II): 10-16.
Serfass, T.L., R.P. Brooks, L.M. Rymon, and O.E. Rhodes, Jr. (2003). River otters in Pennsylvania, USA: Lessons for predator re-introduction. In: Conroy, J.W.H., A.C. Gudeb, J. Ruiz-Olmo, and G.M. Yoxon (eds.). Proceedings of the European Otter Conference-“Return of the Otter in Europe-Where and How.” Journal of the International Otter Survival Fund, No. 2: 22 pp. IOSF Bradford. Isle of Skye, Scotland.
Serfass, T.L., R. Cordes, J. Fike, S. Stevens, B. Hubbard, M. Mills and O. Rhodes, Jr. (2004). Evaluating the distribution and abundance of reintroduced otters in the Allegheny River drainage: Applications of GIS, genetic, and digital technologies for management of a rare species. Fourth Progress Report: Wildlife Conservation and Restoration Account Prepared for: The Pennsylvania Game Commission.11 pp.
Serfass, T. and P. Polechla. (2008). Lontra canadensis. In: IUCN (2012). IUCN Red List of Threatened Species. Version 2012.2
Serfass, T.L. and D. Rothschild. (2010). Lontra canadensis. In: Steele, M., J. Merritt, M. Brittingham, and T. Maret (eds.). Terrestrial Species of Concern in Pennsylvania: A Guide for Research, Conservation, and Management. Johns Hopkins University Press, Baltimore, Maryland, USA.
Serfass, T. L., J.A. Bohrman, S.S. Stevens, and J.T. Bruskotter. (2014). Otters and anglers can share the stream! The role of social science in dissuading negative messaging about reintroduced predators. Human Dimensions of Wildlife, 19(6): 532-544.
Severinghaus, C.W. and J.E. Tanck. (1948). Speed and gait of the otter. Journal of Mammalogy, 29: 71.
Seymour, M.S., K.E. Ott, D.A. Guertin, H.N. Golden, D.B. McDonald, and M. Ben-David. (2012). Early Holocene glacial retreat isolated populations of river otters (Lontra canadensis) along the Alaskan coast. Canadian Journal of Zoology, 90: 1136-1148.
Shannon, J.S. (1989). Social organization and behavioral ontogeny of otters (Lutra canadensis) in a coastal habitat in northern California. IUCN Otter Specialist Group Bulletin, 4: 8-13.
Shannon, J.S. (1991)a. Progress on Californian otter research. IUCN Otter Specialist Group Bulletin,
6: 24-31.
Shannon, J.S. (1991)b. Social organization, reproductive behavior, and pup development in a coastal population of otters [Lontra (=Lutra) canadensis]. pp. 151-152. In: Reuther, C. and R. Roechert. (eds.). Proceedings of the V. International Otter Colloquium. Habitat 6, Hankensbuettel, 344 pp.
Shannon, J.S. (1992). Progress on California otter research: 1991. IUCN Otter Specialist Group Bulletin, 7: 29-32.
Shannon, J.C. (1993). Behaviour of otters in a coastal marine habitat: abstract of a work in progress. IUCN Otter Specialist Group Bulletin, 8: 23-27.
Shannon, J. S. (1994). Onset of self sufficiency in free-ranging otters. Abstract of work in progress. Abstract: First Annual Conference, The Wildlife Society, p.85.
Shannon, J.S. (1997). Social organization of marine coastal otter: Overview of a workin progress, IUCN Otter Specialist Group Bulletin, 14: 26-29.
Shannon, J.S. (1998)a. Behavioral Development of Otters (Lutra canadensis) in a Marine Coastal Habitat. Proceedings of the VIIth International Otter Collloquium, Trebon, Czech Republic, Part III. P. 312-315.
Shannon, J. S. (1998)b. Generational change in affiliation patterns in a society of marine coastal otters (Lutra canadensis). Proceedings of the VIIth International Otter Colloquium, pp. 316- 319.
Shannon, J.S. (1998)c. Behavior of otters in a marine coastal habitat: Summary of a work in progress. IUCN Otter Specialist Group Bulletin, 15(2): 114-117.
Shannon, J.S. and S.L. Moore. (1998). Intrafamilial killings in a marine coastal population of otters (Lutra canadensis). Proceedings of the VIIth International Otter Collloquium, Trebon, Czech Republic, Part III. P. 320-323.
Shardlow, M.R. (2005). Factors affecting the detectability and distribution of the North American river otter. M.S., Kansas State University. Manhattan, Kansas.
Shardlow, M., C. Paukert, K. Blecha, and P. Gipson. (2009). Distribution and population status of river otters in eastern Kansas. Final Report, Kansas Department of Wildlife and Parks, Pratt, Kansas.
Sheldon, W.G. and W.G. Toll. (1964). Feeding habits of river otter in a reservoir in central Massachusetts. Journal of Mammalogy, 45: 449-455.
Sheldon, W.G. and W.G. Toll. (1964). Feeding habits of the river otter in a reservoir in central Massachusetts. Journal of Mammalogy, 45(3): 449-455.
Sherr, H. and J. Bowman. (2009). A sex-based effect of parasitism on skull morphology in river otters. Ecoscience, 16(1): 119-124.
Shirley, M.G., R.G. Linscombe, and L.R. Sevin. (1983). A live trapping and handling technique for river otter. Proceedings of the Annual Conference of Southeastern Association of Fish and Wildlife Agencies, 37:182-89.
Shirley, M.G., R.G. Linscombe, N.W. Kinler, R.M. Knaus, and V.L. Wright. (1988). Population estimates of river otters in a Louisiana coastal marshland. Journal of Wildlife Management, 52(3): 512-515.
Shump, K.A., Jr., A.U. Shump, R.A. Aulerich, and G.A. Heidt. (1976). A bibliography of Mustelids. Part V: Otters, Michigan State University. Agriculture Experimental Station. Journal of Arts and Letters, No. 7759. 32 pp.
Siitari, K.J. (2012). A landscape perspective on the distribution and harvest of North American river otters in Michigan in relation to prey availability. M.S., Michigan State University. East Lansing, Michigan.
Simbeck, R. (1998). For wildlife watchers: River otter. South Carolina Wildlife, 45(2): 42-43.
Singer, F.J., D. LaBrode, and L. Sprague. (1981). Beaver reoccupation and an analysis of the otter niche in Great Smoky Mountains National Park. U.S. National Park Service. Research/Resources Management Report. R/RM/SER-40. U.S. Government Report. 82(24): 5080.
South Dakota. (2012). South Dakota river otter management plan. South Dakota Department of Game, Fish and Parks, Pierre, South Dakota. 57 pp.
Sleeman, J.M., D.A. Cristol, A.E. White, D.C. Evers, R.W. Gerhold, and M.K. Keel. (2010). Mercury poisoning in a free-living northern river otter (Lontra canadensis). Journal of Wildlife Diseases, 46(3): 1035-1039.
Smith, L.H. (1939). Notes on an otter fishing. Journal of Mammalogy, 20: 370-371.
Somers, J.D. (1986). Pesticide and PCB residues in northeastern Alberta otter. 35 pp. Alberta Environment Centre, AECV85-R4, Canada.
Somers, J., B. Goski, and M. Barrett. (1987). Organochlorine residues in northeastern Alberta otters. Bulletin of Environmental Contamination and Toxicology, 39: 783-790.
Speich, S.M. and R.L. Pitman. (1984). River otter occurrence and predation on nesting marine birds in the Washington islands wilderness. The Murrelet, 65(1): 25-27.
Spelman, L.H., P.W. Sumner, J.F. Levine and M.K. Stoskopf. (1993). Field anesthesia in the North American river otter (Lutra canadensis). Journal of Zoo and Wildlife Medicine, 24(1): 19-27
Spelmen, L.H., P.W. Sumner, J.F. Levine, and M.K. Stoskopf. (1994). Anesthesia of North American river otters (Lutra canadensis) with Medetomidine-Ketamine and reversal by Atipamezole. Journal of Zoo and Wildlife Medicine, 25(2): 214-223.
Spelman, L.H., W.J. Jochem, P.W. Sumner, D.P. Redmond, and M.K. Stoskopf. (1997). Postanesthetic monitoring of core body temperature using telemetry in North American river otters (Lutra canadensis). Journal of Zoo and Wildlife Medicine, 28(4): 413-417.
Spelman, L.H., P.W. Sumner, W.B. Karesh, and M.K. Stoskopf. (1997). Tiletamine-zolazepam anesthesia in North American river otters (Lutra canadensis) and its partial antagonism with flumazenil. Journal of Zoo and Wildlife Medicine, 28(4): 418-423.
Spelman, L.H. (1998). North American river otter (Lutra canadensis) translocation in North Carolina 1989-96. Proceedings of the Second Scientific Meeting of the European Association of Zoo and Wildlife Veterinarians (EAZWV), Chester UK, May 21-24, pp. 461-465.Spelman, L. (1999). Otter anesthesia. Pp. 436-443. In: Fowler, M. and R.E. Miller, (eds.). Zoo and Wild Animal Medicine: Current Therapy 4. W.B. Saunders, Philadelphia.
Spencer, S. (2006). Looking at the affects of mercury on the northern river otter (Lutra canadensis) in southwestern Nova Scotia. Nova Outdoors, 15(2): 9.
Spencer, S.H., D. Shutler, and M.S. O'Brien, (2011). Correlates of mercury in female river otters (Lontra canadensis) from Nova Scotia, Canada. Environmental Toxicology and Chemistry, 30(8): 1879-1884.
Spinola, R.M. (2003). Spatiotemporal ecology of river otters translocated to western New York. Ph.D., The Pennsylvania State University. University Park, Pennsylvania.
Spinola, R.M., T.L. Serfass, and R.P. Brooks. (2008). Survival and post-release movements of river otters translocated to western New York. Northeastern Naturalist, 15(1): 13-24.
Snyder, D.E., A.N. Hamir, V.F. Nettles, and C.E. Rupprecht. (1989). Dirofilaria immitis in a river otter (Lutra canadensis) from Louisiana. Journal of Wildlife Disease, 25: 629.
South Dakota. (2010). South Dakota river otter management plan. South Dakota Department of Game, Fish and Parks. Pierre, South Dakota. Wildlife Division Report 2012-07. 58 pp.
South Dakota Department of Game, Fish, and Parks. (2012). South Dakota river otter management plan. South Dakota Department of Game, Fish, and Parks, Wildlife Division, Number 2012-27, Pierre, South Dakota.
Stacy, B.A., D.A. Wolf, and F.X. Wellehan. (2014). Large-scale predation by river otters (Lontra canadensis) on Florida cooter (Pseudemys floridana) and Florida softshell turtles (Apalone ferox). Journal of Wildlife Diseases: Short Communications, 50(4): 906-910.
Stahlecker, D.W. (1986). A survey for river otter (Lutra canadensis) in Taos and Colfax Counties, New Mexico. Contract No. 519-75-01. Report submitted to New Mexico Department of Game and Fish, Santa Fe, New Mexico. 10 pp.
Stansley, W.D., D. Velinsky, and R. Thomas. (2010). Mercury and halogenated organic contaminants in river otters (Lontra canadensis) in New Jersey, USA. Environmental Toxicology and Chemistry, 29(10): 2235-2242.
Stearns, C. R. (2008). Food habits of river otters (Lontra canadensis) in the Red River of the north drainage of eastern North Dakota. M.S., Frostburg State University, Frostburg, Maryland.
Stearns, C., S. Loughery, M. Triska, J. Brandt, F.K. Ammer, B.N. Newton, Z. Olsen, T. Serfass, A. Bagherian, and R. Brooks. (2010). Evaluating the distribution and abundance of river otters and other meso-carnivores in eastern North Dakota drainage: Applications of GIS, genetic and digital technologies for conservation planning. In: North Dakota Department of Game and Fish, Bismarck, North Dakota.
Stearns, C.R., D.M. Fecske, and T.L. Serfass. (2011). The use of scales to estimate the prey size of Nearctic river otters (Lontra canadensis) and other Piscivores. The American Midland Naturalist, 166: 163-176.
Stearns, C.R. and T.L. Serfass. (2011). Food habits and fish prey size selection of a newly colonizing population of river otters (Lontra canadensis) in eastern North Dakota. The American Midland Naturalist, 165: 169-184.
Stenson, G.B., G.A. Badgero, and H.D. Fisher. (1984). Food habits of the river otter (Lutra canadensis) in the marine environment of British Columbia. Canadian Journal of Zoology, 62(1): 88-91.
Stenson, G.B. (1985). The reproductive cycle of the river otter (Lutra canadensis) in the marine environment of southwestern British Columbia. Ph.D., University of British Columbia, Vancouver.
Stenson, G.B. (1986). The river otter (Lutra canadensis) in Canada. IUCN Otter Specialist Group Bulletin, 1(1): 14-17.
Stenson, G. (1988). Oestrus and the vaginal smear cycle of the river otter (Lutra canadensis). Journal of Reproduction and Fertility, 83: 605-610.
Stephenson, A.B. (1977). Age determination and morphological variation of Ontario otters. Canadian Journal of Zoology, 55(10): 1577-1583.
Stevens, D.R. (1980). Restoration of river otter to Rocky Mountain National Park. Rocky Mountain National Park Special Report 2. 5 pp.
Stevens, S., R.C. Cordes, and T.L. Serfass. (2004). Use of remote cameras in riparian areas: challenges and solutions. IUCN Otter Specialist Group Bulletin, 21A. 9 pp.
Stevens, S.S. and T.L. Serfass. (2005). Sliding behavior in Nearctic river otters: Locomotion or play? Northeastern Naturalist, 12(2): 241-244.
Stevens, S.S. and T.L. Serfass. (2008). Visitation patterns and behavior of Nearctic river otter (Lontra canadensis) at latrines. Northeastern Naturalist, 15(1): 1-12.
Stevens, S.S., E.H. Just, R.C. Cordes, R.P. Brooks, and T.L. Serfass. (2011). The influence of habitat quality on the detection of river otter (Lontra canadensis) latrines near bridges. The American Midland Naturalist, 166(2): 435-445.
Stevens, S.S., J.F. Organ, and T.L. Serfass. (2011). Otters as flagships: Social and cultural considerations. Proceedings of Xth International Otter Colloquium, IUCN Otter Specialist Group Bulletin, 28A: 150-161.
Stokes, A.N., A.M. Ray, M.W. Buktenica, B.G. Gall, E.D. Paulson, and E.D. Brodie Jr. (2015). Otter predation on Taricha granulosa and variation in Tetrodotoxin levels with elevation. Northwestern Naturalist, 96(1): 13-21.
Stophlett, J.J. (1947). Florida otters eat large terrapin. Journal of Mammalogy, 28: 183.
Stoskopf, M.K., L.H. Spelman, L.H. Sumner, D.P. Redman, W.J. Jochem, and J.F. Levine. (1997). The impact of water temperature on core body temperature of North American river otters (Lontra canadensis) during simulated oil spill recovery washing protocols. Journal of Zoo and Wildlife Medicine, 28(4): 407-412.
Strom, S.M. (2008). Total mercury and methylmercury residues in river otters (Lutra canadensis) from Wisconsin. Archives of Environmental Contamination and Toxicology, 54: 546-554.
Stuht, J.N. (1978). Paragonimiasis in river otter. Michigan Department of Natural Resources. Wildlife Division Report, 2824: 1-2.
Stuht, S. (1991). Polychlorinated biphenyls in river otter from Michigan. P. 18. In: Addison, E.M., G.A. Fox, and M. Gilbertson. (eds.). Proceedings of the expert consultation meeting on mink and otter. March 5 and 6, 1991. Sponsored by Environment Canada and Ontario Ministry of Natural Resources, Windsor, Ontario.
St-Georges, M., S. Nadeau, D. Lambert, and R. Decarie. (1995). Winter habitat use by ptarmigan, snowshoe hares, red foxes, and river otters in the boreal forest-tundra transition zone of western Quebec. Canadian Journal of Zoology, 73(4): 755-764.
Suedmayer, W.K., G. Johnson, and M.A. Lovell. (1999). Pulmonary silicosis in three North American river otters (Lutra canadensis). Journal of Zoo and Wildlife Medicine, 30(4): 564-572.
Suggett, G. and B. Keating. (1981). River Otter sightings in southern Saskatchewan. Blue Jay, 39(2): 121-122.
Swenk, M.H. (1918). On a new subspecies of otter from Nebraska. University Studies, University of Nebraska, 18: 1-6.
Swimley, T.J. (1996). Predicting river otter marking sites in Pennsylvania. M.S., Pennsylvania State University. University Park, Pennsylvania.
Swimley, T.J., T.L. Serfass, R.P. Brooks, and W.M. Tzilkowski. (1998). Predicting river otter latrine sites in Pennsylvania. Wildlife Society Bulletin, 26(4): 836-845.
Swimley, T.J., R.P. Brooks, and T.L. Serfass. (1999). Otter and beaver interactions in the Delaware Water Gap National Recreation Area. Journal of the Pennsylvania Academy of Science, 72: 97- 101.
Swimley, J.T. and T.S. Hardisky. (2000). Otter population trend survey. Final Report, Project No. 06670, Job No. 67002. Pennsylvania Game Commission. Harrisburg, Pennsylvania.
Tabor, J.E. (1974). Productivity, survival, and population status of river otter in western Oregon. M.S.,
Oregon State University. Corvallis, Oregon.
Tabor, J.E. and H.M. Wight. (1977). Population status of river otter in western Oregon. The Journal of Wildlife Management, 41: 692-699.
Tango, P.J. (1988). Home range of reintroduced river otter in West Virginia. M.S., West Virginia University. Morgantown, West Virginia.
Tango, P.J., E.D. Michael, and J.I. Cromer. (1988). Summer home range of reintroduced river otter in West Virginia. Transactions of the Northeast Section, the Wildlife Society, 45: 73.
Tango, P.J., E.D. Michael, and J.I. Cromer. (1991)a. Mating and first-season births in interstate transplanted river otters (Lutra canadensis) (Carnivora: Mustelidae). Brimleyana, 17: 53-55.
Tango, P.J., E.D. Michael, and J.I. Cromer. (1991)b. Survival and seasonal movements during river otter restoration efforts in West Virginia. Proceedings Annual Conference of the Southeast Association of Fish and Wildlife Agencies, 45: 64-72.
Tarasoff, F.J., A. Bisaillon, J. Pierard, and A.P. Whitt. (1972). Locomotory patterns and external morphology of the river otter, sea otter, and harp seal (Mammalia). Canadian Journal of Zoology, 50(7): 915-929.
Tarasoff, F.J. (1973). Anatomical observations on the river otter, sea otter and harp seal with reference to thermal regulation and diving. Ph.D., McGill University. Montreal, Quebec.
Tarasoff, F.J. and G.L. Kooyman. (1973)a. Observations on the anatomy of the respiratory system of the river otter, sea otter, and harp seal. I. The topography, weight, and measurements of the lungs. Canadian Journal of Zoology, 51(2): 163-170
Tarasoff, F.J. and G.L. Kooyman. (1973)b. Observations on the anatomy of the respiratory system of the river otter, sea otter, and harp seal. II. The trachea and bronchial tree. Canadian Journal of Zoology, 51(2): 171-177.
Tarasoff, F.J. (1974). Anatomical adaptations in the river otter, sea otter and harp seal with reference to thermal regulation. pp. 111-141. In: Harrison, R.J. (ed.). Functional Anatomy of Marine Mammals, Vol.2. Academic Press, New York, NY.
Taylor, C., L.K. Duffy, R.T. Bowyer, and G.M. Blundell. (2000). Profiles of faecal porphyrins in river otters following the Exxon Valdez Oil Spill. Marine Pollution Bulletin, 40: 1132-1138.
Taylor, C., L.K. Duffy, F.G. Plumley, and R.T. Bower. (2000). Comparison of spectrofluorometric and HPLC methods for the characterization of fecal porphyrins in river otters. Environmental Research, 84(1): 56-63.
Taylor, C., M. Ben-David, R.T. Bowyer, and L.K. Duffy. (2001). Response of river otters to experimental exposure of weathered crude oil: Fecal porphyrin profiles. Environmental Science and Technology, 35: 747-752.
Taylor, M., J.E. Rettig, and G.R. Smith. (2003). Diet of re-introduced river otters (Lontra canadensis) in north-central Arizona. Journal of Freshwater Ecology, 18(2): 337-338.
Taylor, R.T. , J.A. Wong, and T.L. Serfass. (2016). Stress levels in captured river otters (Lontra canadensis) decreased after transportation to reintroduction sites. Journal of Zoo and Wildlife Medicine, 47(4):1057-1060.
Testa, J.W., D.F. Holleman, R.T. Bowyer, and J.B. Faro. (1994). Estimating populations of marine river otters in Prince William Sound, Alaska, using radiotracer implants. Journal of Mammalogy, 75(4): 1021-1032.
Thompson, L. and L.L. Stelle, (2014). Prey preference of the North American river otter (Lontra canadensis) evaluated based on optimal foraging theory. IUCN Otter Specialist Group Bulletin, 31(1): 15-29.
Tischbein, G. (1976). More river otter transplanted in Colorado’s west slope. Wildlife News-Colorado Division of Wildlife, 1: 2.
Tischendorf, J.S.W., C. Frazer, and T.G. Grubb. (1987). Interactions between bald eagles (Haliaeetus leucocephalus: Accipteridae) and river otters (Lutra canadensis). The Southwestern Naturalist, 32(2): 286-287.
Tocidlowski, M.E., M.R. Lappin, P.W. Sumner, and M. Stoskopf. (1997). Serologic survey for toxoplasmosis in river otters. Journal of Wildlife Diseases, 33(3): 649-652.
Tocidlowski, M.E., C.A. Harms, P.W. Sumner, and M.K. Stoskopf. (1999). Technique of mandibular salivary gland biopsy in river otters (Lutra canadensis). Journal of Zoo and Wildlife Medicine, 30(2): 252-255.
Tocidlowski, M.E., L.H. Spelman, P.W. Sumner, and M.K. Stoskopf. (2000). Hematology and serum biochemistry parameters of North American river otters (Lontra canadensis). Journal of Zoo and Wildlife Medicine, 31: 484-490.
Toll, W.G. (1961). The ecology of the river otter (Lutra canadensis) in the Quabbin Reservation of central Massachusetts. M.S. University of Massachusetts. Amherst, Massachusetts.
Tolme, P. (2003). Looking for the lost river otters of the southwest. National Wildlife World Edition, 41(4): 48-55.
Torgerson, T. J. (2014). Latrine site selection and seasonal habitat use of a coastal river otter population. Ph.D. Humboldt State University. Arcata, California.
Toweill, D.E. (1974). Winter food habits of river otters in western Oregon. The Journal of Wildlife Management, 38(1): 107-111.
Toweill, D.E. and J.E. Tabor. (1982). River otter: (Lutra canadensis). pp. 688-703. In: Chapman, J.A. and G.A. Feldhamer (eds.). Wild Mammals of North American: Biology, Management, and Economics. Johns Hopkins University Press, Baltimore, Maryland. 1147 pp.
Trautman, M.L. (unk). Analysis of a collection of otter scats from the inlet of Pickerel Lake, Dickinson County, Michigan. Institute for Fisheries Research Report, No. 367. Typewritten.
Triska, M.D., S.C. Loughry, and T.L. Serfass, (2011). River otters use agricultural field along the Turtle River in eastern North Dakota as crossover and latrine area. The Prairie Naturalist, 43: 52-55.
Tumlison, C.R., A.W. King, and L. Johnson. (1981). The river otter in Arkansas. I. Distribution and harvest trends. Proceedings of the Arkansas Academy of Sciences, 35: 74-77.
Tumlison, R., M. Karnes, and A.W. King. (1982). The river otter in Arkansas: II. Indications of a beaver-facilitated commensal relationship. Proceedings of the Arkansas Academy of Science, 36: 73-5.
Tumlison, R. and S. Shalaway. (1985). An annotated bibliography on the North American river otter. Oklahoma Cooperative Fish and Wildlife Research Unit, Oklahoma State University, Stillwater, Oklahoma. 32 pp.
Tumilson, R., A.W. King, and V.R. McDaniel. (1986). The river otter in Arkansas. IV. Winter food habits in eastern Arkansas. Arkansas Academy of Science, 30: 76-77.
Tumlison, R. and M. Karnes. (1987). Seasonal changes in food habits of river otters in southwestern Arkansas beaver swamps. Mammalia, 51(2): 225-231.
U.S. Fish and Wildlife Service. (2001). Memo of June 15, 2001: Comments on State of Idaho request to export river otters (Lontra canadensis). Washington, DC.
Van Zyll de Jong, C.G. (1968). A systematic review of the Nearctic and Neotropical river otters (order: Carnivora; family: Mustelidae). Ph.D., University of Toronto. Toronto, Ontario.
Van Zyll de Jong, C.G.(1972). A systematic review of the Nearctic and Neotropical river otters (Genus Lutra, Mustelidae, Carnivora). Life Sciences Contributions of the Royal Ontario Museum, 80: l- 104.
Van Zyll de Jong, C.G. (1987). A phylogenetic study of the Lutrinae (Carnivora; Mustelidae) using morphological data. Canadian Journal of Zoology, 65(10): 2536-2544.
Van Zyll de Jong, C.G. (1991). A brief review of the systematics and classification of the Lutrinae. pp. 79-83. In: Reuther, C. and R. Rochert (eds.). Proceedings of the Vth International Otter Symposium. Hankensbüttel, Germany.
Varley, N. (1998). Yellowstone’s river otters: Enigmatic water weasels. Yellowstone Science, 6(1): 15- 18.
Veerbeek, N.A.M. and J.L. Morgan. (1978). River otter predation on glaucous-winged gulls on Mandarta Island, British Columbia. The Murrelet, 52: 92-95.
Volker, M.K. and I.R. Luskin. (2013). Diagnostic imaging in veterinary dental practice: dental pulp disease in a river otter. Journal of the American Veterinary Medical Association, 243(5): 631-634.
Waller, A.J. (1992). Seasonal habitat use of river otters in northwestern Montana. M.S., University of Montana. Missoula, Montana.
Watcha, G.W. Jr. (unk). Beaver beaver beaver and some otter too. 84 pp. Available from rpoutdoors.com
Wayre, P. (1967). Breeding Canadian otters (Lutra c. canadensis) at Norfolk Wildlife Park. International Zoo Yearbook, 7: 128-130.
Weisel, J.W., C. Nagaswami, and R.O. Peterson. (2005). River otter hair structure facilitates interlocking to impede penetration of water and allow trapping of air. Canadian Journal of Zoology, 83(5): 649-655.
Wengeler W.R, D.A. Kelt, and M.L. Johnson. (2010). Ecological consequences of invasive lake trout on river otters in Yellowstone National Park. Biological Conservation, 143(5): 1144-1153.
Whelan, J., K.L. Anderson, and P.F. Scanlon. (1981). Frequency of Gnathostoma miyazakii, in kidneys of river otters in Virginia. Virginia Journal of Science, 32(3): 99.
Whelan, J., K.L. Anderson-Bledsoe, and P.F. Scanlon. (1983). Prevalence of the kidney worm (Gnathostoma miyazakii) in river otters (Lutra canadensis) in Virginia. Canadian Journal of Zoology, 61(8): 1934-1935.
White, J. and J. Hoagland. (1997). Additional observations of the long-tailed weasel (Mustela frenata) and the river otter (Lutra canadensis) in southeastern Oklahoma. Proceedings of the Oklahoma Academy of Science, 77: 111-112.
White, S.C., D.W. Clark, C.D. Day, and R.S. Sikes. (2007). Variation in digestive efficiency of captive North American river otters (Lontra canadensis) on various diets. Zoo Biology, 26: 41- 50.
Whitney G. (1939). California river otter in Yosemite National Park. Yosemite Nature Notes, 18: 9–10.
Wilber, S.A. (2015). North American river otter (Lontra canadensis) presence and habitat analysis in Florida as compared to historical data. M.S., University of South Florida. Tampa, Florida.
Wilkie, S, (2016). Mercury and selenium in trapped river otter (Lontra canadensis) from central Saskatchewan. An overview of a project in the Department of Biology, University of Regina. Regina, Canada.
Williams, A.R. (2011). River otter (Lontra canadensis) use Phragmites australis and density estimation using genetic techniques. M.S., University of Nebraska. Lincoln, Nebraska.
Williams, G.C. (1966). River otter predation on glaucous-winged gulls on Mandarta Island, British Columbia. The Murrelet, 59: 92-95.
Williams, T. M., M. Ben-David, S. Noren, M. Rutishauser, K. McDonald, and W. Heyward. (2002). Running energetics of the North American river otter: Do short legs necessarily reduce efficiency on land? Comparative Biochemistry and Physiology-Part A: Molecular & Integrative Physiology, 133(2): 203-212.
Williamson, R.H. (2009). Muskrat-river otter interactions in and adjacent to Mammoth Cave National Park, Kentucky. M.S., University of Tennessee. Knoxville, Tennessee.
Williamson, R. and J.D. Clark. (2011). Evaluating interactions between river otters and muskrats at bridge crossings in Kentucky. Journal of Mammalogy, 92(6): 1314-1320.
Wilson, A., S. Davenport, Q. Yin, A. Barocas, M. Ben-David, M., and T. Goodwin. (2013). Volatile organic chemicals in secretions and excretions of Alaska river otters. In: Abstracts of papers of the American Chemical Society, Vol. 245: April.
Wilson, J.H., K.L. Anderson-Bledsoe, J.L. Baker, and P.F. Scanlon. (1984). Mechanical properties of river otter limb bones. Zoo Biology, 3: 27-34.
Wilson, K.A. (1954). The role of mink and otter as muskrat predators in northeastern North Carolina. The Journal of Wildlife Management, 18(2): 199-207.
Wilson, K.A. (1959). The otter in North Carolina. Proceedings of the Annual Conference of the Southeast Association of Game and Fish Commissioners, 13: 267-277.
Wilson, K.A. (1961). The otter is nature’s playboy. Wildlife in North Carolina.
Wilson, S. P. (2012). River otter (Lontra canadensis) home range, habitat use, overnight movement, and survival in the Platte River of Nebraska. M.S., University of Nebraska. Lincoln, Nebraska.
Wolkomir, J. (1999). Welcome back otter. Wildlife Conservation, 102(1): 30-34.
Woolf, A., J.L. Curl, and E. Anderson. (1984). Inanition following implantation of a radio telemetry device in a river otter. Journal of the American Veterinary Medical Association, 185: 1415-1416.
Woolf, A., R.S. Halbrook, D.T. Farrand, C. Schieler, and W. Weber. (1997). Survey of habitat and otter population status. Final Report of the Federal Aid in Wildlife Restoration Project No. W- 122-R-3. Illinois Department of Natural Resources, Springfield, Illinois.
Woolf, A. and C.K. Nielson. (2001). Predicting growth of the reintroduced otter population in Illinois. Cooperative Wildlife Research Laboratory at Southern Illinois University. Carbondale, Illinois.
Woolington, J.D. (1984). Habitat use and movements of river otters at Kelp Bay, Baranof Island, Alaska. M.S., University of Alaska. Fairbanks, Alaska.
Wren, C. (1984). Distribution of metals in tissues of beaver, raccoon, and otters from Ontario, Canada. Science of the Total Environment, 34: 177-184.
Wren, C.D. (1985). Probable cause of mercury poisoning in a wild otter (Lutra canadensis) in northwestern Ontario. Canadian Field-Naturalist, 99(1): 112-114.
Wren, C., P. Stokes, and K.L. Fischer (1986). Mercury levels in Ontario mink and otter relative to food levels and environmental acidification. Canadian Journal of Zoology, 64: 2854-2859.
Wren, C. (1987). Contaminant research in Canada. IUCN Otter Specialist Group Bulletin, 2(1): 9-11.
Wren, C., N. Cloutier, T. Lim, and N. Dave. (1987). Ra-226 concentrations in otter (Lutra canadensis)trapped near uranium tailings at Elliot Lake, Ontario. Bulletin of Environmental Contamination and Toxicology, 38: 209-221.
Wren, C., K. Fischer, and P. Stokes. (1988). Levels of lead, cadmium and other elements in mink and otter from Ontario, Canada. Environmental Pollution, 52: 193-202.
Wren, C. (1991)a. Cause and effect linkages between chemicals and populations of mink (Mustela vison) and otter (Lutra canadensis) in the Great Lakes Basin. Journal of Toxicology and Environmental Health, 33: 549-585.
Wren, C. (1991)b. Overview of the biology, population status and sensitivity to chemicals of mink and otter. p.5. In: Addison, E.M., G.A. Fox, and M. Gilbertson. (eds.). Proceedings of the expert consultation meeting on mink and otter. March 5 and 6, 1991. Sponsored by Environment Canada and Ontario Ministry of Natural Resources, Windsor, Ontario.
Wyman, J. (1847). On Lutra canadensis. Proceedings of the Boston Society of Natural History,2: 249- 250
Yates, D., D.C. Evers, and L. Savor. (2004). Developing a mercury exposure profile for mink and river otter in Maine. Report BRI 2004-09 submitted to Maine Department of Environmental Protection and Maine Inland Fisheries and Wildlife, BioDiversity Research Institute. Gorham, Maine.
Yates, D., D. Mayack, K. Munney, D. Evers, A. Major, T. Kaur, and R. Taylor. (2005). Mercury levels in mink (Mustela vison) and river otter (Lutra canadensis) from northeastern America. Ecotoxicology, 14: 263-274.
Yeager, L.E. (1938). Otters of the delta hardwood region of Mississippi. Journal of Mammalogy, 19: 195-201.
Yoxon, P. and G.M. Yoxon. (2014). Otters of the World. Whittles Publishing, Dunbeath, Scotland. 176 pp.
Zackheim, H.S. (1982). Ecology and population status of the river otter in southwestern Montana. M.S., University of Montana. Missoula, Montana.
Zelepsky, J. and T. M. Harrison. (2010). Surveillance of rabies prevalence and bite protocols in captive animals in American zoos. Journal of Zoo and Wildlife Medicine, 41(3): 474-479.

ARTICLES OF INTEREST REFERENCED ONLINE
(as of 15 April 2016)

Publications in Preparation, Press, or Review

Fike, J.A., T.L. Serfass, and O.E. Rhodes, Jr. Assessment of genetic structure of river otter populations in Eastern North America. Cannot confirm a publication as of 15 April 2016 (VLC).
Fike, J,A., E.K. Latch, O.E. Rhodes, Jr., and T.L. Serfass. Influence of time and temperature on amplification and genotyping error of DNA derived from river otter fecal material. Cannot confirm a publication as of 15 April 2016 (VLC).
Fike, J.A., T.L. Serfass, A.S. Beheler, and O.E. Rhodes, Jr. Evaluation of preservation methods for DNA analysis of river otter scat: Probability of amplification and genotyping accuracy. Proceedings of the XI International Otter Colloquium. Cannot confirm article is in this publication (VLC).
Latch, E.K. D.G. Scognamillo, J.A. Fike, and O.E. Rhodes, Jr. Fine scale population structure of coastal and upland populations of river otters in Louisiana. Cannot confirm a publication as of 15 April 2016 (VLC).

Electronic Publications (ahead of journal publication)

Albeke, S.E., N.P. Nibbelink, and M. Ben-David, (2015). Modeling behavior of coastal river otter (Lontra canadensis) in response to prey availability in Prince William Sound, Alaska: A spatially-explicit individual-based approach. PLoS ONE 10, e0126208.doi:10.1371/journal.pone.0126208.
Timm-Davis L.L, T.J. DeWitt, and C.D. Marshal. (2015). Divergent skull morphology supports two trophic specializations in otters (Lutrinae). PLoS ONE 10 (12): e0143236.doi:10,1371/journal.pone.014323 

Publications on Websites

Aarden, K., Dethier, M., & Dobkowski, K. (2014). Spring Diet of river otters (Lontra canadensis) in the San Juan Islands of Washington State. 9 pages. University of Washington, ResearchWorks, Friday Harbor Laboratories Student Research Papers, University of Washington, Friday Harbor, Washington.
Access: http://hdl.handle.net/1773/27248
Arnebeck, B. (2011)
. Otter behavior: the way otters do things or not do things.
Access: http://bobarnebeck.com/
Arnebeck, B. (unk). New York State’s campaign against otters.
Access: http://bobarnebeck.com/
Black, J. M. (2000). River otter demography study: a citizen science project. Humboldt State University web site.
Access: http://www2.humboldt.edu/wildlife/faculty/black/research/otters.html
Bottini, M. (2009). The status and distribution of the river otter (Lontra canadensis) on Long Island, New York. 26 pp.
Access: http://www.peconic.org/
Friis-Bastaad, E. (2015). Keeping Yukon’s river otters in the swim. Your Yukon, Yukon Research Center, Access: http://yukoncollege.yk.ca/downloads/YY_Final_otter_Jan_9_2015 
Gyug, L. (ed.). (2008)
. Species-Habitat model; for northern river otter.
Access: https://www.for.gov.bc.ca/hfd/library/FIA/2008/LBIP_4765001h.pdf
Kolba, Nikolai. (2015). Babesia spp in North American river otter (Lontra canadensis), Beavers (Castor canadensis), muskrats (Odontra zibethicus), and mink (Neovison vison) in Pennsylvania and New Jersey. Northeast Wildlife DNA Lab.
Access: http://quantum.esu.edu/dna/research/prevalence-of-babesia-spp-infection-in-aquatic-mammals-in-pa-and-nj/
Maddox, C. and V. Vrable. (unk). Houston Zoo: North American river otter Latrine site survey. An AAZK Conservation, Restoration and Preservation Grant Project, 7pp.
Access: https://aazk.org/wp-content/uploads/grant_river_otter_survey.pdf
Shannon, J.S. (2001). Ontogeny of behavior and self sufficiency in free-ranging otters.
Access: http://www.otters.net/
Shannon, J.S. (2002). The origin of “River Otter”.
Access: http://www.otters.net/
Shannon, J.S. (2005). How I identify individual otters.
Access: http://www.otters.net/
Shannon, J.S. (2007). J. David Solf-Otter research pioneer.
Access: http://www.otters.net/
Shannon, J.S. (2008). Research abstract.
Access: http://www.otters.net/

WATCH FOR THESE PUBLICATIONS

Lumkes R.A., S. Meronk, N. Euler, C.C. Day, and P.A. Zollner. (2016). Influence of Northern River Otter Latrine Sites upon Carnivore Activity and Species Richness. Purdue University, Indiana Academy of Science Annual Meeting.
Melquist, W., S. Kempema, and E.D. Stukel. (2014?). Determination of River Otter (Lontra canadensis ) Distribution and Evaluation of Potential Sites for Population Expansion in South Dakota. The Wildlife Society, South Dakota Chapter, Annual Meeting, 24-26 February 2014.
Mowry, R., Schneider, T., Latch, E., Gompper, M., Beringer, J., and L.S. Eggert. Genetic restoration lags demographic restoration in reintroduced river otters. Animal Conservation. This article may be synonymous with the authors’ 2015 publication entitled “Genetics and the successful reintroduction of the Missouri river otter.” Animal Conservation18(2): 196-206. (above)

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