John W. Chapman
Courtesy Assistant Professor of Fisheries

Aquatic biological invasions, invertebrate zoology and peracaridan crustacean taxonomy.

OSU Campus
Lincoln County
Fisheries and Wildlife
Hatfield Marine Science Center
2030 SE Marine Science Dr.
Newport, OR 97365
United States
(541) 737-0235


Climate consequences for species invasions and diversity changes in marine coastal systems, the historical origin and mechanisms of marine invertebrate dispersal, the criteria for introduced species and the geographical impacts of humans on ecosystems, the processes of biological invasions and the systematics of marine peracaridan crustaceans, invertebrate ecology and systmatics. An illustrated key to the 345 shallow water shallow water marine and estuarine gammaridean amphipod crustaceans of the American Pacific from Point Conception to the Columbia River. (One out of every eleven species in the 1001 page 4th edition of "Light and Smith's Manual" are gammaridean amphipods).


Aquatic Biological Invasions Invertebrate Zoology


PhD 1984 Population Biology and Evolution, U.C. Santa Barbara

I accept graduate students for the Fisheries and Wildlife Department
I can serve on graduate committees


Behrenfeld, M. J., J. W. Chapman, J. T. Hardy and H. I. I. Lee 1993. Is there a common response to ultraviolet-B radiation by marine phytoplankton? Marine Ecology Progress Series, 102(1-2):59-68 Bersine, K., V. E. Brenneis; R. C. Draheim, A. Michelle Wargo Rub, J. E. Zamon, R. K. Litton, S. A. Hinton; M. D. Sytsma, J. R. Cordell and, J. W. Chapman 2008 Distribution of the invasive New Zealand mudsnail (Potamopyrgus antipodarum) in the Columbia River Estuary and its first recorded occurrence in the diet of juvenile Chinook salmon (Oncorhynchus tshawytscha), Biological Invasions 7:651-663. Calder D. R., H. H.C. Choong, J. T. Carlton, J. W. Chapman, J. A. Miller and J. Geller 2014. Hydroids (Cnidaria: Hydrozoa) from Japanese tsunami marine debris washing ashore in the northwestern United States Aquatic Invasions 9(4):425–440 Castillo, G. C., H. Li, J. W. Chapman and T. W. Miller 2000. Predation on native and nonindigenous amphipod crustaceans by a native estuarine-dependent fish, pp. 177-185, In J. Pederson (eds.) Marine Bioinvasions: Proceedings of a Conference, January 24 27, 1999 Massachusetts Institute of Technology Sea Grant College Program, Cambridge, MA Castillo, G. C., T. W. Miller, J. W. Chapman and H. W. Li 1996. Non-indigenous species cause major shifts in the food base of estuarine dependent fishes pp. 101-109 In D. MacKinlay and K. Shearer (eds.) “Gutshop ’96: Feeding ecology and nutrition in fish” Proceedings International Congress on the biology of Fishes, San Francisco, California July 1996. Carlton, J. T., J. W. Chapman, H. Lee and R. L. Steele 1991, How prevalent are toxic marine phytoplankton introductions? pp. 20 In T. J. Smayda (ed.) Fifth International Conference on Toxic Marine Phytoplankton, Newport, RI, Oct. 28 - Nov. 1. Chapman, J. W. 1988. Invasions of the northeast Pacific by Asian and Atlantic gammaridean amphipod crustaceans, including a new species of Corophium. J. Crustacean Biology, 8:364-382. Chapman, J. W. 1992. Review. pp. 29, In D. Bella, H. Li, R. Jacobs "Ecological indicators of global climate change" Proceedings of a U.S. Fish and Wildlife Service Workshop, Corvallis Chapman, J. W. 1993 (Contributor) “Focus 2. UV-B radiation as a driving force for change in aquatic ecosystems” pp. 24-29 In R. Smith and D. Hader (eds.) “Aquatic Ecosystems” chapter of “Effects of increased ultraviolet radiation on global ecosystems” Proceedings of the Scientific Committee on Problems of the Environment (SCOPE) Tramariglio (Sassari) Sardinia, Italy, October 1992 Chapman, J. W. 1996. Invasive species threaten the Pacific Northwest ecosystems, pp. 1-2 In Cicero, P. (ed.) Proceedings of the National Forum on Nonindigenous Species Invasions in U.S. Marine and Fresh Waters, 22 March, United States Capitol, Washington, D.C. Chapman, J. W. 1998. Climate and non-indigenous species introductions in northern hemisphere estuaries, pp. 286-298, In E. Muckle-Jeffs (eds.) Proceedings of Eighth International Zebra Mussel and Aquatic Nuisance Species Conference, March 16-19, 1998 International Zebra Mussel Conference Proceedings, Pembroke, Ontario, Canada Chapman, J. W. 2000a. Chapter 9C4. Focal Taxonomic Collections: Peracaridan Crustaceans, pp. 9C4 1-50, In A. H. Hines and G. M. Ruiz (eds.) Biological Invasions of Cold-water Coastal Ecosystems: Ballast-Mediated Introductions in Port Valdez/Prince William Sound, Alaska Smithsonian Environmental Research Center, Edgewater, MD; Chapman, J. W. 2000b. Climate effects on nonindigenous peracaridan crustacean introductions in estuaries, pp. 66-80, In J. Pederson (eds.) Marine Bioinvasions: Proceedings of a Conference, January 24-27, 1999 Massachusetts Institute of Technology Sea Grant College Program, Cambridge, MA. Chapman, J. W. 2007. Amphipoda, pp. 545-618, In J. T. Carlton (ed.) The Light and Smith Manual: Intertidal Invertebrates from Central California to Oregon, 4th edition, University of California Press. Chapman, JW 2007. The Mysterious Periwinkle (Littorina littorea): Norse or Later Introduction from Europe? Arctic Studies Center Newsletter, Smithsonian Institution, National Museum of Natural History 14:2. ( Chapman, J. W., A. M. H. Blakeslee, J. T. Carlton, and M. R. Bellinger 2008 Parsimony dictates a human introduction: On the use of genetic and other data to distinguish between the natural and human-mediated invasion of the European snail Littorina littorea in North America, Biological Invasions10:131-133. Chapman, J. W., R. A. Breitenstein and J. T. Carlton 2013. Port-by-port accumulations and dispersal of hull fouling invertebrates between the Mediterranean Sea, the Atlantic Ocean and the Pacific Ocean, Aquatic Invasions 8(3):249–260 doi: Chapman, J. W. and J. T. Carlton. 1991. A test of criteria for introduced species: the global invasion by the isopod Synidotea laevidorsalis (Miers, 1881). Journal of Crustacean Biology 11(3):386-400. Chapman, J. W. and J. T. Carlton 1994. Predicted discoveries of the introduced isopod, Synidotea laevidorsalis (Miers, 1881), Journal of Crustacean Biology 14(4):700-714. Chapman, J. W., J. T. Carlton, M. R. Bellinger, and A. M. H. Blakeslee 2007. Premature Refutation of a Human-Mediated Marine Species Introduction: The Case History of the Marine Snail Littorina littorea in the Northwestern Atlantic, Biological Invasions 9(6):737-750. Chapman, J. W., J. T. Carlton, M. R. Bellinger, and A. M. H. Blakeslee 2007. Premature Refutation of a Human-Mediated Marine Species Introduction: The Case History of the Marine Snail Littorina littorea in the Northwestern Atlantic, Biological Invasions 9(8):995-1008. (Incorrectly published a second time!) Chapman, J. W and C. S. Carter .2014. A rapid intertidal megafauna survey method applied to Upogebia pugettensis and its introduced parasite, Orthione griffensis, Journal of Crustacean Biology 34(3), 349-356, + 5 Supplement pages Chapman, J. W. and J. A. Dorman 1975. Diagnosis, systematics, and notes on Grandidierella japonica (Amphipoda: Gammaridea) and its introduction to the Pacific coast of the United States, Bulletin of the Southern California Academy of Science, 74:104 108. Chapman, J. W., B. R. Dumbauld, Gyo Itani and J. C. Markham 2012. An Introduced Asian Parasite Threatens Northeastern Pacific Estuarine Ecosystems, Biological Invasions. 14:1221-1236 DOI 10.1007/s10530-011-0151-3 Plus supplemental materials 16 pp. Chapman, J. W. and G. A. Hansen, 1997. Chapter 9C4. Survey and risk analysis of introduced non-indigenous estuarine and marine species of Port Valdez, Alaska, Smithsonian Research Institute, Edgewater, Maryland, 31 pp. Chapman, J. W., T. W. Miller and E. V. Coan 2003 Live seafood species are recipes for invasion, Conservation Biology, 17(5):1386-1395. Chapman, J. W., T. W. Miller and E. V. Coan 2005. Response to Keller and Lodge: (low n, inaccurate P). Conservation Biology 19(2):288-289. Chapman, J. W. and T. W. Miller 1999. The odd northeast Pacific records of the bivalve Arctica islandica (Linneaus, 1767): bait remnants? Festivus, 31(5):55-57. Chapman, J. W., C. P. Onuf and M. L. Quammen 1982. Effects of fish predation on peracarid crustaceans in Mugu Lagoon California, pp. 274 285 In G. M. Calliet and C. A. Simenstad (eds.) Fish Food Habits Studies, Proceedings of the 3rd Pacific Workshop, Asilomar, California. Chapman, J. W. and V. Osis 1991. Global warming demonstration, Current: The Journal for Marine Education, 10(3):32. Cohen, A.N., L.H. Harris, B.L. Bingham, J.T. Carlton, J.W. Chapman, C.C. Lambert, G. Lambert, J.C. Ljubenkov, S.N. Murray, L.C. Rao, K. Reardon & E. Schwindt 2005. Rapid Assessment Survey for exotic organisms in southern California bays and harbors, and abundance in port and non-port areas, Biological Invasions 7:995-2002. Dumbauld, B. R. and J. W. Chapman 2008. Could burrowing shrimp host populations with pelagic larval dispersal be controlled by an invading parasite? 37th Annual Benthic Ecology Meeting, Providence, RI 9-13 April. (Extended abstract) Dumbauld, B. R., J. W. Chapman, M. E. Torchin and A. M. Kuris 2011. Is the collapse of mud shrimp (Upogebia pugettensis) populations along the Pacific coast of North America caused by outbreaks of a previously unknown bopyrid isopod parasite (Orthione griffenis)? Estuaries and Coasts, 34:336–350. Niels-Viggo Hobbs, N.-V, E. Lazo-Wasem, M. Faasse, J. R. Cordell, J. W. Chapman, C. S. Smith, R. Prezant, R. Shell and J. T. Carlton 2015 Going global: The introduction of the Asian isopod Ianiropsis serricaudis Gurjanova (Crustacea: Peracarida) to North America and Europe Aqautic Invasions 10:177-187 Lee II, H., B. Boese, John Chapman, Julie Life, Patrick Clinton, Janet Lamberson, David Specht, Deborah A. Reusser (Accepted 2007). Estuarine and regional scale responses of native and nonindigenous amphipods to climate changes in the Northeast Pacific, Marine Ecology Progress Series, 38 pp. Miller, T. W., J. W. Chapman and E. V. Coan 2001. Live seafood: A recipe for biological and regulatory concern?, pp. 249-256, In B.C. Paust and A.A. Rice (eds.) “Marketing and shipping live aquatic products”, Proceedings of the Second International Conference and Exhibition, November 1999 Seattle, Washington, University of Alaska Sea Grant College Program, AK-SG-01-03, 2001, Miller, T. J., E. V. Coan and J. W. Chapman 1998. Return of the nonnative Laternula marilina to the Northeastern Pacific, The Veliger 43(3):282-284. Mills, C. E., A. N. Cohen, H. K. Berry, M. J. Wonham, B. Bingham, B. Bookheim, J. T. Carlton, J. W. Chapman, J. Cordell, L. H. Harris, T. Klinger, A. J. Kohn, C. Lambert, G. Lambert, K. Li, D. L. Secord and J. Toft 2000. The 1998 Puget Sound Expedition: A shallow-water rapid assessment survey for noninidigenous species, with comparisons to San Francisco Bay, pp. 130-138, In J. Pederson (eds.) Marine Bioinvasions: Proceedings of a Conference, January 24 27, 1999 Massachusetts Institute of Technology Sea Grant College Program, Cambridge, MA Okolodkov, Y. B., R. Bastida-Zavala, A. Ibanez, J. W. Chapman, E. Suarez-Morales, F. Pedroche and F. J. Gutierrez-Mendieta 2007. Especies acuaticas no indigenas en Mexico, Ciencia y Mar, XI(32): 20-67. Onuf, C. P., M. L. Quammen, G. P. Shaffer, C. H. Peterson, J. W. Chapman, J. Cermak and R. W. Holmes 1978. An analysis of the values of central and southern California coastal wetlands pp. 186 199 In P. E. Greeson, J. R. Clark and J. E. Clark (eds.) "Wetland Function and Value: The State of Our Understanding" Proc. Nat. Symp. Wetlands. Pearcy, W. G., C. D. Wilson, A. W. Chung and J. W. Chapman. 1990. Residence times, distributions and production of juvenile chum salmon (Oncorhynchus keta) in Netarts Bay, Oregon. Fishery Bulletin 87:553-568. Pederson, J., R. Bullock, D. Calder, J. Carlton, J. Chapman, A. Cohen, H. Dean, P. Dyrynda, L. Harris, G. Lambert, A. Mathieson, S. Tyler and J. Winston 2001. Rapid assessment survey of nonindigenous species in coastal Massachusetts, p. 112, In M. Barrett-O'Leary (eds.) International Conference on Marine Bioinvasions - Abstracts Louisiana Sea Grant College Program, New Orleans, LA. Pelletier, J. and J. W. Chapman 1996. Application of antibiotics to cultures of the gammaridean amphipod Corophium spinicorne Stimpson, 1857. Journal of Crustacean Biology 16:291-294. Smith, A. E., J. W. Chapman, B. R. Dumbauld 2007. Population structure and energetics of the bopryid isopod parasite Orthione griffenis in mud shrimp Upogebia pugettensis, Journal of Crustacean Biology, 28(2):228-233.

Fun Fact

I was once the youngest ferry boat pilot in the United States and previous to that was a commercial fisherman.