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A Science-based Initiative to Manage Double-Crested Cormorant Damage to Southern Aquaculture

Issued September 2000

James F. Glahn, Mark E. Tobin, and Bradley F. Blackwell

Citation:

GLAHN, J. F., M. E. TOBIN, AND B. F. BLACKWELL, editors. 2000. A science-based initiative to manage double-crested cormorant damage to southern aquaculture. USDA Animal and Plant Health Inspection Service, Wildlife Services National Wildlife Research Center, Fort Collins, CO, APHIS 11-55-010.

References

Acord, B. R. 1995. Cormorant management and responsibilities: United States Department of Agriculture. Colonial Waterbirds 18 (Spec. Publ. 1):231-233.

Aderman, A. R.; Hill, E. P. 1995. Locations and numbers of double-crested cormorants using winter roosts in the delta region of Mississippi. Colonial Waterbirds 18 (Spec. Publ. 1):143-151.

Arkansas Senate Bill 345, 79th General Assembly, Regular Session, 1993. For An Act To Be Entitled "An act to declare the double-crested cormorant a nuisance to the fish farm industry; to request the Arkansas Game and Fish Commission to work with the U.S. Fish and Wildlife Service and the Arkansas Congressional Delegation to provide better protection of farm-raised fish from predation by double-crested cormorants and for other purposes."

Arkansas Senate Concurrent Resolution 12, 80th General Assembly, Regular Session, 1995. Requesting the members of Arkansas' Congressional delegation to do everything within their power to allow the citizens of this State to reduce the populations of cormorants [double-crested] in instances where they are jeopardizing commercial fishing or sport fishing in this State.

Avery, J.; Lutz, G. 1996. Aquaculture Fact Sheet. Louisiana Aquaculture as of 1995. Louisiana State University, Agricultural Center, Louisiana Cooperative Extension Service, Baton Rouge, 1p.

Baillie, J. L., Jr. 1947. The double-crested cormorant nesting in Ontario. Canadian Field-Naturist 61:119-126.

Barlow, C. G.; Bock, K. 1984. Predation of fish in farm dams by cormorants, Phalacrocorax spp. Australian Wildlife Research 11:559-566.

Bayer, R. D. 1989. The cormorant/fisherman conflict in Tillamook County, Oregon. Studies in Oregon Ornithology 6. Gahmken Press, Newport, Oregon. 99pp.

Bédard, J.; Nadeau, A; Lepage, M. 1995. Double-crested cormorant culling in the St. Lawrence River Estuary. Colonial Waterbirds 18 (Spec. Pub. 1):78-85.

Bédard, J.; Nadeau, A.; LePage, M. 1999. Double-crested cormorant culling in the St. Lawrence River estuary: Results of a five-year program. Pg. 147-156 in (M. E. Tobin, Tech. Coord.) Symposium on double-crested cormorants: Population status and management issues in the Midwest. 9 December 1997., Milwaukee, WI. Tech. Bull. 1879. Washington, D.C. : U.S. Department of Agriculture, Animal and Plant Health Inspection Service.

Belant, J. L.; Tyson, L. A.; Mastrangelo, P. M. In press. Effects of lethal control at aquaculture facilities on populations of piscivorous birds. Wildlife Society Bulletin

Berryman, J. H. 1992. Animal damage management: responsibilities of various agencies and the need for coordination and support. Proceedings Eastern Wildlife Damage Control Conference. 5:12-14.

Birt, V.L.; Birt, T. P.; Goulet, D.; Cairns, D. K.; Montevecchi, W.A. 1987. Ashmole's halo: direct evidence for prey depletion by a seabird. Marine Ecology - Progress. Series 40:205-208.

Bishop, C.A.; Weseloh, D.V.; Burgess, N. M.; Struger, J.; Norstrom, R. J.; Turle, R.; Logan, K. A. 1992. An atlas of contaminants in eggs of fish-eating colonial birds of the Great Lakes (1970-1988). Canadian Wildlife Service Technical Report Serial No. 152. 318pp.

Blackwell, B. F.; Krohn, W. B.; Dube, N. R.; Godin, A. J. 1997. Spring prey use by double-crested cormorants on the penobscot River, Maine. Colonial Waterbirds 20:77-86.

Blokpoel, H.; Tessier, G. D. 1991. Distribution and abundance of colonial waterbirds nesting in the Canadian portions of the lower Great Lakes system in 1990. Canadian. Wildlife Service. Technical Report Series no. 117. 16pp.

Booth, T. W. 1994. Bird dispersal techniques. Pages E19-E23 in Prevention and Control of Wildlife Damage (S.E. Hygnstrom, R.M. Timm, and G.E. Larson, eds). University of Nebraska Cooperative Extension Service, Lincoln.

Bregnballe, T.; Gross-Custard, J. D.; le V. Dit Durell, S. E. A.. 1997. Management of cormorant (Phalacrocorax carbo sinensis) numbers in Europe: a second step towards a European conservation and management plan. Pp. 62-122 in C. van Dam and S. Asbirk [eds.] Cormorants and human interests: Proceedings of the workshop towards an international conservation and management plan for the great cormorant (Phalacrocorax carbo), 3 and 4 October 1996, Lelystad, The Netherlands.

Brugger, K. E. 1995. Double-crested cormorants and fisheries in Florida. Colonial Waterbirds 18 (Spec. Pub. 1):110-117.

Bur, M. T.; Tinnirello, S. L.; Lovell, C. D.; Tyson, J. F. 1999. Diet of the double-crested cormorant in western Lake Erie. Pg. 73-86 in (M. E. Tobin, Tech. Coord.) Symposium on double-crested cormorants: Population status and management issues in the Midwest. 9 December 1997., Milwaukee, WI. Tech. Bull. 1879. Washington, D.C. : U.S. Department of Agriculture, Animal and Plant Health Inspection Service.

Campo, J. J.; Thompson, B. C.; Barron, J. C.; Telfair R. C., II; Durocher, P; Gutreuter, S. 1993. Diet of double-crested cormorants wintering in Texas. Journal of Field Ornithology 64:135-144.

Caswell, H. (editor). 1989. Matrix population models-construction, analysis, and interpretation. Sinauer and Associates, Inc. Sunderland, Massachusetts, U.S.A.

Chapdelaine, G.; Bédard, J. 1995. Recent changes in the abundance and distribution of the double-crested cormorant in the St. Lawrence River, Estuary and Gulf, Quebec, 1978-1990. Colonial Waterbirds 18 (Spec. Publ. 1):70-77.

Collins, C. 1995. Arkansas fish farming industry. Aquaculture Magazine, Nov/Dec 1995:77-80.

Craven, S. R.; Lev, E. 1987. Double-crested cormorants in the Apostle Islands, Wisconsin, USA: population trends, food habits, and fishery depredations. Colonial Waterbirds 10:64-71.

Crouse, D. T.; Cowder, L. B.; Caswell, H. 1987. A stage-based population model for loggerhead sea turtles and implications for conservation. Ecology 69:1421-1423.

Derby, C. E.; Lovvorn, J. R. 1997. Predation of fish by cormorants and pelicans in cold-water river: a field and modeling study. Canadian Journal of Fisheries and Aquatic Science 54:1480-1493.

Dolbeer, R. A. 1990. Double-crested cormorant population status in North America, 1970-1989. Denver Wildlife Research. Center. Bird Section Research Report 451. 11pp.

Dolbeer, R. A. 1991. Migration patterns of double-crested cormorants east of the Rocky Mountains. Journal of Field Ornithology 62:83-93.

Dolbeer, R. A. 1998. Population dynamics: the foundation of wildlife damage management for the 21st century. Proceedings Vertebrate Pest Conference 18:2-11.

Draulans, D. 1987. The effectiveness of attempts to reduce predation by fish-eating birds: a review. Biological Conservation 41:219-232.

Duffy, D. C. 1995. Why is the double-crested cormorant a problem? Insights from cormorant ecology and human sociology. Colonial. Waterbirds 18 (Spec. Publ. 1):25-32.

Duncan, N. 1978. The effects of culling Herring Gulls (Larus argentatus) on recruitment and population dynamics. Journal of Applied Ecology 15:697-713.

EIFAC (European Inland Fisheries Advisory Commission). 1988. Report of the EIFAC working party on prevention and control of bird predation in aquaculture and fisheries operations. EIFAC Technical Paper (51):79pp.

Erwin, R. M. 1995. The ecology of cormorants: Some research needs and recommendations. Colonial Waterbirds 18 (Spec. Publ. 1):240-246.

Ewins, P. J.; Weseloh, D. V. 1994. Effects on productivity of shooting of double-crested cormorants on Pigeon Island, Lake Ontario, in 1993. J. Great Lakes Research 20:761-767.

Fargo, W.G.; Van Tyne, J. 1927. Fall bird notes from the eastern shore of Lake Superior. Canadian Field-Naturalist 41:7-9.

Fox, G. A.; Weseloh, D. V.; Kubiak, T. J.; Erdman, T. C. 1991. Reproductive outcomes in colonial fish-eating birds: a biomarker for developmental toxicants in Great Lakes food chains. I. Historical and ecotoxicological perspectives. Journal of Great Lakes Research 17:153-157.

Garland, L.; Chipman, R.; Slate, D. 1998. Environmental Assessment of alternative strategies for the management of damage caused by Ring-billed gulls and double-crested cormorants on Lake Champlain, Vermont and New York.

Glahn, J. F. In press. Comparison of pyrotechnics versus shooting for dispersing double-crested cormorants from their night roosts. Proceedings Vertebrate Pest Conference 19:

Glahn, J. F.; Brugger, K. E. 1995. The impact of double-crested cormorants on the Mississippi delta catfish industry: a bioenergetics model. Colonial Waterbirds 18 (Spec. Publ. 1):168-175.

Glahn, J. F.; Dixon, P. J.; Littauer, G. A.; McCoy, R. B. 1995. Food habits of double-crested cormorants wintering in the delta region of Mississippi. Colonial Waterbirds 18 (Spec. Publ. 1):158-167.

Glahn, J. F.; Harrel, J. B.; Vyles, C. 1998. The diet of wintering double-crested cormorants feeding at lakes in the southeastern United States. Colonial Waterbirds 21:446-452.

Glahn, J. F.; May, A.; Bruce, K.; Reinhold, D. 1996. Censusing double-crested cormorants (Phalacrocorax auritus) at their winter roosts in the Delta Region of Mississippi. Colonial Waterbirds 19:73-81.

Glahn, J. F.; Reinhold, D. S.; Sloan, C. A. 2000. Recent population trends of double-crested cormorants wintering in the delta region of Mississippi: Responses to roost dispersal and removal under a recent depredation order. Waterbirds 23(1):38-44.

Glahn, J. F.; Stickley, A. R. Jr. 1995. Wintering double-crested cormorants in the delta region of
Mississippi: population levels and their impact on the catfish industry. Colonial Waterbirds 18 (Spec. Publ. 1):137-142.

Glahn, J. F.; Tobin, M. E.; Harrel, J. B. 1999. Possible effects of catfish exploitation on over-winter body condition of double-crested cormorants. Pg. 107-114 in (M. E. Tobin, Tech. Coord.) Symposium on double-crested cormorants: Population status and management issues in the Midwest. 9 December 1997., Milwaukee, WI. Tech. Bull. 1879. Washington, D.C. : U.S. Department of Agriculture, Animal and Plant Health Inspection Service.

Gottfried, R. W. 1998. Test of submerged structures as a deterrent to double-crested cormorant predation of channel catfish at catfish farms. MS thesis. Louisiana State University 39 pp.

Gross, A. O. 1952. The Herring Gull-cormorant control project. Proceedings. International Ornithological Congress 10:532-536

Hatch, J. J. 1984. Rapid increase of double-crested cormorants nesting in southern New England. American Birds 38:984-988.

Hatch, J. J. 1995. Changing populations of double-crested cormorants. Colonial Waterbirds 18 (Spec. Publ. 1):8-24.

Hatch, J. J.; Weseloh, D. V. 1998. Double-crested Cormorant (Phalacrocorax auritus). In The Birds of North America. (A. Poole and F. Gill, eds.). The Academy of Natural Sciences, Philadelphia, and The American Ornithologists' Union, Washington, D.C.

Hess, K. 1994. Effectiveness of shooting double-crested cormorants on catfish ponds and harassment of roosts to protect farm-raised catfish. M.S. thesis, Mississippi State University, Mississippi State. 59pp.

Hickey, J. J. 1952. Survival studies of banded birds. USDI-FWS Special Scientific Report, Wildlife, No. 15, Washington, D.C. 177pp.

Hobson, K. A.; Knapton, R. W.; Lysack, W. 1989. Population, diet and reproductive success of double-crested cormorants breeding on Lake Winnipegosis, Manitoba, in 1987. Colonial Waterbirds 12:191-197.

Hodges, M. F. 1989. Foraging by piscivorous birds on commercial fish farms in Mississippi. M.S. thesis. Mississippi State University, Mississippi State, Mississippi

Jackson, J.A.; Jackson, B. J. S. 1995. The double-crested cormorant in the South-Central United States: habitat and population changes of a feathered pariah. Colonial. Waterbirds 18 (Spec. Publ. 1):118-130.

Jarvie, S.; Blokpoel, H.; Chipperfield, T. 1999. A geographic information system to monitor nest distributions of double-crested cormorants and black-crowned night herons at shared colony sites near Toronto, Canada. Pg. 121-130 in (M. E. Tobin, Tech. Coord.) Symposium on double-crested cormorants: Population status and management issues in the Midwest. 9 December 1997., Milwaukee, WI. Tech. Bull. 1879. Washington, D.C. : U.S. Department of Agriculture, Animal and Plant Health Inspection Service.

Johnsgard, P. A. 1993. Cormorants, Darters and Pelicans of the World. Smithsonian Institute Press, Washington, D.C.

Keller, T. 1999a. Wiring and enclosure systems as tools to reduce cormorant depredations at fish farms. PP. 239-249. In D. P. Cowand and C. J. Feare [eds.] Advances in pest management. Filander Verlag, Fürth.

Keller, T. M. 1999b. Is large-scale shooting a proper cormorant management tool? Poster, 23rd Annual of the Waterbird Society in Grado, Italy, 8-12 November 1999.

King, D. T. 1996. Movement of double-crested cormorants among winter roosts in the delta region of Mississippi. Journal of Field Ornithology 67:205-211.

King, D. T.; Glahn, J. F.; Andrews, K. J. 1995. Daily activity budgets and movements of winter roosting double-crested cormorants determined by biotelemetry in the delta region of Mississippi. Colonial Waterbirds 18 (Spec. Publ. 1):152-157.

Kirsch, E.M. 1995. Double-crested cormorants along the upper Mississippi River. Colonial Waterbirds 18 (Spec. Publ. 1):131-136.

Knopf, F. L.; Kennedy, J. L. 1981. Differential predation by two species of piscivorous birds. Wilson Bull. 93:554-556.

Leopold, A. S. 1933. Game Management. Charles Scribner & Sons, New York, NY. 481pp.

Lewis, H. F. 1929. The natural history of the double-crested cormorant (Phalacrocorax auritus auritus (Lesson)) . Ru-Mi-Lou Books, Ottawa. 94pp.

Littauer, G.A. 1990a. Avian predators: frightening techniques for reducing bird damage at aquaculture facilities. Southern Regional Aquaculture Cent. Publ. No. 401, Mississippi State Cooperative Extension Service, Mississippi State. 4pp.

Littauer, G. A. 1990b. Control of bird predation at aquaculture facilities: strategies and cost estimates. Southern Regional Aquaculture Cent. Publ. No. 402, Mississippi State Cooperative Extension Service, Mississippi State. 4pp.

Littauer, G. A.; Glahn, J. F.; Reinhold, D. S.; Brunson, M. W. 1997. Control of bird predation at aquaculture facilities: Strategies and cost estimates. Southern Regional Aquaculture Cent. Publ. No. 402 (revised), Mississippi State Cooperative Extension Service, Mississippi State. 4pp.

Ludwig, J. P. 1984. Decline, resurgence and population dynamics of Michigan and Great Lakes double-crested cormorants. Jack-Pine Warbler 62:90-102.

Ludwig, J. P.; Auman, H. J.; Weseloh, D. V.; Fox, G. A.; Giesy, J. P.; Ludwig, M. E. 1995. Evaluation of the effects of toxic chemicals in Great Lakes cormorants: has causality been established? Colonial. Waterbirds 18 (Spec. Publ. 1):60-69.

Ludwig, J. P.; Hull, C. N.; Ludwig, M. E.; Auman, H. J. 1989. Food habits and feeding ecology of nesting double-crested cormorants in the Upper Great Lakes, 1986-1989. Jack-Pine Warbler 67:115-127.

Ludwig, J. P.; Hiroko, K. M.; Auman, H. J.; Ludwig, M. E.; Summer, C. L.; Giesy, J. P.; Tillitt, D. E.; Jones, P. D. 1996. Deformities, PCB's and TCDD-equivalents in double-crested cormorants (Phalacrocorax auritus) and Caspian terns (Hydroprogne caspia) of the Upper Great Lakes 1986-1991: testing a cause-effect hypothesis. Journal of Great Lakes Research 22:172-197.

Markham, B. J.; Brechtel, S. H. 1978. Status and management of three colonial waterbirds species in Alberta. Colonial Waterbirds 2:55-64.

Mastrangelo, P.; Sloan, C.; Bruce, K. 1995. Incorporating depredation permits into integrated damage management plans for aquaculture facilities. Proceedings Eastern Wildlife Damage Management Conference 7:36-39.

May, J.A.; Bodenchuk, M. J. 1992. "Wire" grid excludes cormorants from commercial catfish ponds. Probe 125:4.

McDonold, D. B.; Caswell, H. 1993. Matrix methods for avian demography. Pp. 139-185. in Dennis M. Power (editor). Current Ornithology. Plenum Press. New York, New York, USA.

McLeod, J. A.; Bondar, G. F. 1953. A brief study of the double-crested cormorant on Lake Winnipegosis. Canadian Field-Naturalist 67:1-11.

Meister, A. L.; Gramlich, F. J. 1967. Cormorant predation on tagged Atlantic salmon smolts. Maine Atlantic Sea-Run Salmon Commission. Unpublished report. University of Maine, Orono. 36 pp.

Mendall, H. L. 1934. The relationship of certain sea birds to the fishing industry of the state of Maine. A Report of the Commissioner of Sea and Shore Fish., Orono, Me. 28pp.

Mendall, H. L. 1936. The home-life and economic status of the double-crested cormorant Phalacrocorax auritus auritus (Lesson). Univ. of Maine, Orono. 159pp.

Moerbeek, D. J.; Van Dobben, W. H.; Osieck, E. R.; Boere, G. C.; C. M. 1987. Cormorant damage prevention at a fish farm in the Netherlands. Biological Conservation 39:23-38.

Mott, D. F.; Andrews, K. J.; Littauer, G. A. 1992. An evaluation of roost dispersal for reducing cormorant activity on catfish ponds. Proceedings Eastern Wildlife Damage Control Conference 5:205-211.

Mott, D. F.; Boyd; F. L. 1995. A review of techniques for preventing cormorant depredations at aquaculture facilities in the Southeastern United States. Colonial Waterbirds 18 (Spec. Publ. 1):176-180.

Mott, D. F.; Flynt, R. D.; King. J. O. 1995. An evaluation of floating ropes for reducing cormorant damage at catfish ponds. Proceedings Eastern. Wildlife Damage Control Conference 6:93-97.

Mott, D. F.; Glahn, J. F.; Smith, P. L.; Reinhold, D. S.; Bruce, K. J.; Sloan, C. A. 1998. An evaluation of dispersing double-crested cormorants from winter roosts for reducing predation on catfish in Mississippi. Wildlife Society Bulletin 26:584-591.

Nichols, J. D.; Johnson, F. A.; Williams, B. K. 1995. Managing North American Waterfowl in the face of uncertainty. Annu. Rev. Ecol. Syst. 26:177-199.

Noble, D. G.; Elliott, J. E. 1986. Environmental contaminants in Canadian seabirds 1968-1985: trends and effects. Canadian Wildlife Service Technical Report Series No. 13. 275pp.

Oklahoma Senate Bill 362. 1991. An Act relating to game and fish, declaring the double-crested cormorant a nuisance; requiring the Oklahoma Department of Wildlife to work with certain entities to eliminate certain treaty protections; providing for codification; and declaring an emergency.

Omand, D. N. 1947. The cormorant in Ontario. Sylva 3:19-23.

Owens, N. W. 1977. Responses of wintering brant geese to human disturbance. Wildfowl 28:5-14.

Owens, R. D.; Slate, D. 1991. Economics and effectiveness of control: fact and fiction. Proceedings Eastern Wildlife Damage Control Conference 5:24-27.

Palmer, R.S. (Ed). 1962. Handbook of North American Birds, Volume 1. Yale University Press, New Haven, Conn. 337pp.

Post, W.; Seals, C. A. 1991. Breeding biology of a newly-established double-crested cormorant population in South Carolina, USA. Colonial Waterbirds 14:34-38.

Postupalsky, S. 1978. Toxic chemicals and cormorant populations in the Great Lakes. Miscellaneous. Report No. 40. Wildlife Toxicology Division, Canadian Wildlife Service, Environment Canada, Ottawa. 25pp.

Price, I. M.; Nickum, J. G. 1995. Aquaculture and birds: the context for controversy. Colonial Waterbirds 18 (Spec. Publ. 1):33-45.

Price, I. M.; Weseloh, D. V. 1986. Increased numbers and productivity of double-crested cormorants, Phalacrocorax auritus, on Lake Ontario. Canadian Field-Naturalist 100:474-482.

Reinhold, D. S.; Mueller, A. J.; Ellis, G. 1998. Observations of nesting double-crested cormorants in the delta region of Mississippi. Colonial Waterbirds 21:466-467.

Reinhold, D. S.; Sloan, C. A. 1999. Strategies to reduce double-crested cormorant depredation at aquaculture facilities in Mississippi. Pg.99-106 in (M. E. Tobin, Tech. Coord.) Symposium on double-crested cormorants: Population status and management issues in the Midwest. 9 December 1997., Milwaukee, WI. Tech. Bull. 1879. Washington, D.C. : U.S. Department of Agriculture, Animal and Plant Health Inspection Service.

Rodgers, J. A. 1988. Fish-eating bird predation at Richloam Hatchery. Final Perform. Rep. , Study No. 7523. Florida Game and Freshwater Fish Commission, Wildlife Research Laboratory, Gainesville. 13 pp.

Rodgers, J. A. 1994. The management of double-crested cormorants at aquaculture facilities in Florida. Final Perform. Rep., Study 7527. Florida Game and Freshwater Fish Commission, Wildlife Research Laboratory, Gainesville. 18 pp.

Ross, R. M.; Johnson, J. H. 1999. Fish losses to double-crested cormorant predation in eastern Lake Ontario, 1992-97. Pg.61-72 in (M. E. Tobin, Tech. Coord.) Symposium on double-crested cormorants: Population status and management issues in the Midwest. 9 December 1997., Milwaukee, WI. Tech. Bull. 1879. Washington, D.C.: U.S. Department of Agriculture, Animal and Plant Health Inspection Service.

Schmutz, J. A.; Rockwell, R. F.; Petersen, M. R.. Relative effects of survival and reproduction on the population dynamics of emperor geese. Journal of Wildlife Management 61:191-201.

Schneider, C. P.; Schiavone, A., Jr.; Eckert, T. H.; McCullough, R. D.; Lantry, B. F.; Einhouse, D. W.; Chrisman, J. R.; Adams, C. M.; Johnson, J. H.; Ross, R. M. 1998. Double-crested cormorant predation on smallmouth bass and other warm water fishes of the Eastern Basin of Lake Ontario: Overview and Summary. New York Department of Environmental Conservation Special Report. December 15, 1998.

Schramm, H. L., Jr.; French, B.; Ednoff, M. 1984. Depredation of channel catfish by Florida double-crested cormorants. Progressive Fish-Culturist 46:41-43.

Shetterly, S. H. 1986. A plea for cormorants - there's more to the salmon's problems than sea rats. Maine Times (Topsham, Maine), 11 July 1986:20-21.

Shieldcastle, M. C.; Martin, L. 1999. Colonial waterbird nesting on West Sister Island National Wildlife Refuge and the arrival of double-crested cormorants. Pg.115-120 in (M. E. Tobin, Tech. Coord.) Symposium on double-crested cormorants: Population status and management issues in the Midwest. 9 December 1997., Milwaukee, WI. Tech. Bull. 1879. Washington, D.C. : U.S. Department of Agriculture, Animal and Plant Health Inspection Service.

Slate, D.; Owens, R. D.; Connolly, G. E.; Simmons, G. 1992. Decision making for wildlife damage management. Transactions of North American Wildlife and Natural Resources Conference 57:51-62.

St. Martin, R.; Loftus, K. 2000. Double-crested cormorant monitoring and research proposals:2000-2003. Ontario Ministry of Natural Resources.

Stickley, A.R., Jr.; Andrews, K. J. 1989. Survey of Mississippi catfish farmers on means, effort, and costs to repel fish-eating birds from ponds. Proceedings of Eastern Wildlife Damage Control Conference 4:105-108.

Stickley, A. R., Jr.; Warrick, G. L.; Glahn, J. F. 1992. Impact of Double-crested cormorant populations on channel catfish farms. Journal of the World Aquaculture Society 23:192-198.

Thompson, B.C.; Campo, J. J.; Telfair, R. C., II. 1995. Origin, population attributes, and management conflict resolution for double-crested cormorants wintering in Texas. Colonial Waterbirds 18 (Spec. Publ. 1):181-188.

Trapp, J. L.; Lewis, S. J.; Pence, D. M. 1999. Double-crested cormorant impacts on sport fish: Literature review, Agency survey and strategies. Pg. 87-98 in (M. E. Tobin, Tech. Coord.) Symposium on double-crested cormorants: Population status and management issues in the Midwest. 9 December 1997., Milwaukee, WI. Tech. Bull. 1879. Washington, D.C. : U.S. Department of Agriculture, Animal and Plant Health Inspection Service.

Tucker, C. S.; Robinson, E. H. 1990. Channel Catfish Farming Handbook. Van Nostrand Reinhold, New York. 454pp.

Tyson, L. A.; Belant, J. L.; Cuthbert, F. J.; Weseloh, D. V. C. 1999. Nesting populations of double-crested cormorants in the United States and Canada. Pg.17-26 in (M. E. Tobin, Tech. Coord.) Symposium on double-crested cormorants: Population status and management issues in the Midwest. 9 December 1997., Milwaukee, WI. Tech. Bull. 1879. Washington, D.C. : U.S. Department of Agriculture, Animal and Plant Health Inspection Service.

USDA. 1994. Animal Damage Control Program Final Environmental Impact Statement. Vol. 1-3. United States Department of Agriculture, Animal and Plant Inspection Service, Animal Damage Control, Washington, D.C.

USDA 1996. Aquaculture Outlook. March 1996. United States Department of Agriculture, Economic Research Service, Washington, D.C..

USDA 1997. Aquaculture Outlook. March 1997. United States Department of Agriculture, Economic Research Service, Washington, D.C.

USDA 1998. Aquaculture Outlook. March 1998. United States Department of Agriculture, Economic Research Service, Washington, D.C.

USDI-FWS (U.S. Fish and Wildlife Service). 1998. Migratory bird permits; establishment of a depredation order for the double-crested cormorant (Final rule). USDI/Fish and Wildlife Service, 50 CFR Part 21, RIN 1018-AE11.

van de Veen, H.E. 1973. Breeding biology and demography of the double-crested cormorant (Phalacrocorax auritus) of Mandarte Island. Ph.D. dissertation, University of Groningen, Groningen, Netherlands. 32pp.

Van Eerden, M. R.; Koffijberg, K. N.; Platteeuw, M. 1995. Riding the crest of the wave: Possibilities and limitations for a thriving population of migratory cormorants (Phalacrocorax carbo) in man dominated wetlands. Ardea 83:1-10.

Van Gorder, S. 1992. The growth of the aquaculture industry. Alternative Aquaculture Network 9(2):1-2.

Veldkamp, R. 1997. Cormorants Phalacrocorax carbo in Europe: A first step towards a European management plan. Unpublished report. The National Forest and Nature Agency, Denmark, and The National Reference Centre for Nature Management, The Netherlands.

Vermeer, K. 1970. Some aspects of the nesting of double-crested cormorants at Cypress Lake, Saskatchewan, in 1969; a plea for protection. Blue Jay 28:11-13.

Vermeer, K.; Rankin, L. 1984. Population trends in nesting double-crested and pelagic cormorants in Canada. Murrelet 65:1-9.

Wanless, S.; Harris, M. P.; Calladine, J.; Rothery, P. 1996. Modeling responses of herring gull and lessor black-backed gull populations to reduction of reproductive output: implications for control measures. Journal of Applied Ecology 33:1420-1432.

Wanless, S.; Langslow. D. R. 1983. The effects of culling on the Abbeystead and Mallowdale gulery. Bird Study 30:17-23.

Werner, S. J. in press. Cormorant research and impacts to southern aquaculture. Proceedings of Vertebrate Pest Conference. 19:

Weseloh, D.V.; Ewins, P. J. 1994. Characteristic of a rapidly increasing colony of double-crested cormorants (Phalacrocorax auritus) in Lake Ontario: population size, reproductive parameters and band recoveries. Journal of Great Lakes Research 20:443-456.

Weseloh, D. V.; Ewing, P. J.; Struger, J.; Mineau, P.; Bishop, C. A.; Postupalsky, S.; Ludwig , J. P. 1995. Double-crested cormorants of the Great Lakes: changes in population size, breeding distribution and reproductive output between 1913 and 1991. Colonial Waterbirds 18 (Spec. Publ. 1):48-59.

Weseloh, D. V.; Teeple, S.M.; Gilbertson, M. 1983. Double-crested cormorants of the Great Lakes: egg-laying parameters, reproductive failure, and contaminant residues in eggs, Lake Huron 1972-73. Canadian Journal of Zoology 61:427-436.

Wildlife Society, The. 1992. Conservation policies of The Wildlife Society. The Wildlife Society, Bethesda. 24pp.

Williams, B. K.; Nichols. J. P. 1990. Modeling and the management of migratory birds. Natural Resource Modeling. 4:273-311.

Wywialowski, A. P. 1999. Wildlife-caused losses for producers of channel catfish (Italurus punctatus) in 1996. Journal of the World Aquaculture Society 30:461-472.

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Last Modified: October 10, 2007