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Biology Department

Philip Cochran, Ph.D.
Philip Cochran
Biology - Professor

(507) 457-6952
pcochran@smumn.edu

Philip Cochran is a tenured Professor and Chair of Biology at Saint Mary's University of Minnesota.

Scholarly & Creative Interests
Dr. Cochran is interested in a wide range of questions concerning the ecology, geographic distribution, and conservation of animals and plants, but much of his professional activity has involved fish, amphibians, and reptiles. He is especially interested in all aspects of the biology of lampreys. His current funding includes contracts to survey the distribution of lampreys and mudpuppies in southeastern Minnesota.

Courses Taught Recently at SMU
Environmental Biology
Botany/Zoology I
Botany/Zoology Lab I
Botany/Zoology II
Botany/Zoology Lab II
Plant Communities and Taxonomy
Limnology Lab
Earth Science
Freshwater Ecology Lab
Sustainable Resource Management
Herpetology
Ichthyology
Fisheries Biology Lab

Professional Organizations
American Society of Ichthyologists and Herpetologists
American Fisheries Society
Society for the Study of Amphibians and Reptiles

Education
Ph.D., University of Wisconsin, WI, 1984
M.S., University of Minnesota, Minneapolis, MN, 1980
B.A., Saint Mary's College, Winona, MN, 1977

Teaching Experience
2000 to Present: Professor, Biology Department, Saint Mary's University, Winona, MN
1991-2000: Associate Professor, Division of Natural Sciences, St. Norbert College, DePere, WI
1997,1998: Pigeon Lake Field Station (University of Wisconsin) summer session
1984-1991: Assistant Professor, Division of Natural Sciences, St. Norbert College, DePere, WI

Honors
1977-1980: Bush Fellowship
1982: Coauthor of Best Student Paper, meeting of American Fisheries Society, Hilton Head, SC
1990: Donald B. King Distinguished Scholar, St. Norbert College

Selected Presentations
Cochran, P.A. and R.F. Elliott. 2004. Historical distribution and abundance of lake sturgeon in the western Lake Michigan drainage. 84th Annual Meeting, American Society of Ichthyologists and Herpetologists, Norman, Oklahoma

Cochran, P.A., C.L. Frisk, and N.R. Ham. 1998. Implications of geological history for the assessment of biotic integrity in streams: an example in the West Twin River drainage. 128th Annual Conference, Wisconsin Academy of Sciences, Arts and Letters, DePere, Wisconsin

Cochran, P.A. and N.R. Ham. 1998. Distribution of fishes in the West Twin River drainage in relation to late-glacial events. 78th Annual Meeting, American Society of Ichthyologists and Herpetologists, Guelph, Ontario

Cochran, P.A. and A.P. Kinziger. 1996. Postglacial dispersal of slimy sculpin (Cottus cognatus) in northeast Wisconsin. 76th Annual Meeting, American Society of Ichthyologists and Herpetologists, New Orleans, Louisiana

Cochran, P.A., W.D. Swink, and A.P. Kinziger. 1996. Testing a model of sea lamprey feeding. 76th Annual Meeting, American Society of Ichthyologists and Herpetologists, New Orleans, Louisiana

Cochran, P.A. and C.E. Kraft. 1995. Exotic species and the changing fish assemblage in the lower Fox River, Wisconsin. 75th Annual Meeting, American Society of Ichthyologists and Herpetologists, Edmonton, Alberta

Cochran, P.A. and C.E. Kraft. 1994. Temporal variation in the fish assemblage of a Great Lakes tributary: seasonal dynamics. 124th Annual Meeting, American Fisheries Society, Halifax, Nova Scotia. (Poster presentation)

Wagner, R. and P.A. Cochran. 1994. Satellite spawning behavior in American brook lampreys (Lampetra appendix). 74th Annual Meeting, American Society of Ichthyologists and Herpetologists, Los Angeles, California. (Poster presentation)

Cochran, P.A., E.J. Golden, and R.J. Wagner. 1993. Feeding behavior of a parasitic catfish, Ochmacanthus alternus. 73rd Annual Meeting, American Society of Ichthyologists and Herpetologists, Austin, Texas

Cochran, P.A. 1992. Functional morphology of the lamprey oral disc. 72nd Annual Meeting, American Society of Ichthyologists and Herpetologists, Champaign, Illinois

Jones, B.D. and P.A. Cochran. 1992. Ecology of the wood turtle (Clemmys insculpta) in northeastern Wisconsin. 72nd Annual Meeting, American Society of Ichthyologists and Herpetologists, Champaign, Illinois. (Poster presentation)

Lyons, J., P.A. Cochran, and E. Merino-Nambo. 1992. Distribution and status of lampreys in Mexico. 72nd Annual Meeting, American Society of Ichthyologists and Herpetologists, Champaign, Illinois

Cochran, P.A. 1991. Las lampreas de Norte Americana. Instituto de Limnologia, Universidad de Guadalajara, Chapala, Jalisco, Mexico

Cochran, P.A. and J.D. Lyons. 1990. Specialization by silver lamprey (Ichthyomyzon unicuspis) on paddlefish (Polyodon spathula). 70th Annual Meeting, American Society of Ichthyologists and Herpetologists, Charleston, South Carolina

Hodgson, J.R., P.A. Cochran, C.J. Hodgson, and M.E. Sneen. 1990. Specialization by individual largemouth bass (Micropterus salmoides) on noxious prey (water mites and newts). 70th Annual Meeting, American Society of Ichthyologists and Herpetologists, Charleston, South Carolina

Publications
Cochran, P.A. 1979. Comment on some recent methods for estimating food consumption by fish. Journal of the Fisheries Research Board of Canada 36:1018

Cochran, P.A. and I.R. Adelman. 1982. Seasonal aspects of daily ration and diet of largemouth bass (Micropterus salmoides), with an evaluation of gastric evacuation rates. Environmental Biology of Fishes 7:265 27

Cochran, P.A. and D.R. McConville. 1983. Feeding by Trionyx spiniferus in backwaters of the Upper Mississippi River. Journal of Herptetology 17:82 86

Rahel, F.J., J.D. Lyons, and P.A. Cochran. 1984. Stochastic or deterministic regulation of assemblage structure? It may depend on how the assemblage is defined. American Naturalist 124:583 58

Rice, J.A. and P.A. Cochran. 1984. Independent evaluation of a bioenergetics model for largemouth bass (Micropterus salmoides). Ecology 65:732 73

Cochran, P.A. 1987. The southern brook lamprey (Ichthyomyzon gagei) in the St. Croix River drainage of Wisconsin and Minnesota. Copeia 1987: 443 44

Cochran, P.A. 1987. Optimal digestion in a batch reactor gut: the analogy to partial prey consumption. Oikos 50:268 27

Cochran, P.A. and J.F. Kitchell. 1989. A model of feeding by parasitic lampreys. Canadian Journal of Fisheries and Aquatic Sciences 46:1845 185

Cochran, P.A. 1991. Distribution of the mudpuppy, Necturus maculosus, in Minnesota in relation to postglacial events. Canadian Field Naturalist 105:400-402

Lyons, J., P.A. Cochran, O.J. Polaco, and E. Merino-Nambo. 1994. Distribution and abundance of the Mexican lampreys (Petromyzontidae: Lampetra: subgenus Tetrapleurodon). Southwestern Naturalist 39:105-113

Cochran, P.A. 1994. Why lampreys and humans "compete" (and when they don't): toward a theory of host species selection by parasitic lampreys. Pp. 329-345 in: Stouder, D.J., K.L. Fresh, and R.J. Feller (eds.). Theory and application in fish feeding ecology. Belle W. Baruch Library in Marine Science, No. 18, University of South Carolina Press, Columbia, South Carolina

Cochran, P.A. and J.E. Marks. 1995. Biology of the silver lamprey, Ichthyomyzon unicuspis, in Green Bay and the lower Fox River, with a comparison to the sea lamprey, Petromyzon marinus. Copeia 1995:409-421

Lyons, J., S. Navarro-Perez, P.A. Cochran, E. Santana-Castellon, and M. Guzman-Arroyo. 1995. Development of an index of biotic integrity for the conservation of streams and rivers in west-central Mexico. Conservation Biology 9:569-584.

Lyons, J., O.J. Polaco, and P.A. Cochran. 1996. Morphological variation among the Mexican lampreys (Petromyzontidae: Lampetra: subgenus Tetrapleurodon). Southwestern Naturalist 41:365-374

Cochran, P.A. and J.R. Hodgson. 1997. A note on reproduction by the rainforest hognosed pitviper (Porthidium nasutum) in Panama. Bulletin of the Maryland Herpetological Society 33:63-64

Lyons, J., P.A. Cochran, and M.E. Sneen. 1997. Taxonomic status and distribution of the lamprey Ichthyomyzon cf. gagei. American Midland Naturalist 138:69-76

Cochran, P.A., W.D. Swink, and A.P. Kinziger. 1999. Testing and extension of a sea lamprey feeding model. Transactions of the American Fisheries Society 128:403-413

Lyons, J., P.A. Cochran, and D. Fago. 2000. Wisconsin Fishes 2000: Status and Distribution. University of Wisconsin Sea Grant, Madison, Wisconsin. 87 pp

Cochran, P.A., J. Lyons, and M.R. Gehl. 2003. Parasitic attachments by overwintering silver lampreys, Ichthyomyzon unicuspis, and chestnut lampreys, Ichthyomyzon castaneus. Environmental Biology of Fishes 68:65-71

Bence, J.R., R.A. Bergstedt, G.C. Christie, P.A. Cochran, M.P. Ebener, J.F. Koonce, M.A. Rutter, and W.D. Swink. 2003. Sea lamprey (Petromyzon marinus) parasite-host interactions in the Great Lakes. Journal of Great Lakes Research 29 (Supplement 1):253-282

Cochran, P.A., J.Y. Hodgson, and A.P. Kinziger. 2003. Change in the energy density of the sea lamprey (Petromyzon marinus) during its parasitic phase: implications for modeling food consumption and growth. Journal of Great Lakes Research 29 (Supplement 1):297-306

Madenjian, C., P.A. Cochran, and R.A. Bergstedt. 2003. Seasonal patterns in growth, blood consumption, and effects on hosts by parasitic-phase sea lampreys in the Great Lakes: an individual-based model approach. Journal of Great Lakes Research 29 (Supplement 1):322-346

Cochran, P.A., A.K. Newton, and C. Korte. 2004. Great Gordian knots: sex ratio and sexual size dimorphism in aggregations of horsehair worms (Gordius difficilis). Invertebrate Biology 123:77-81

Cochran, P.A. and J. Lyons. 2004. Field and laboratory observations on the ecology and behavior of the silver lamprey (Ichthyomyzon unicuspis) in Wisconsin. Journal of Freshwater Ecology 19:245-253