@article {38056, title = {An introduced Asian parasite threatens northeastern Pacific estuarine ecosystems}, journal = {Biological Invasions}, volume = {14}, year = {2012}, note = {The non-indigenous isopod Orthione griffenis effectively castrates the mud shrimp Upogebia. The spread of the invasive parasite has dramatically depleted mud shrimp populations along the northwestern coast of North America. "All previously known abundant Upogebia populations were either absent or at greatly reduced abundances in all California, Oregon and Washington estuaries examined." (p.1225) "[U]rgent, immediate responses, including captive breeding programs for the most impacted Upogebia populations and species are warranted." (p.1234)}, pages = {p.1221-1236}, keywords = {Alsea Bay, bioturbation, Coos Bay, depleted populations, invasive species, Mud shrimp = Upogebia pugettensis, Netarts Bay, Orthione griffenis, parasites, Sand Lake, Siletz Bay, Tillamook Bay, Yaquina Bay}, doi = {10.1007/s10530-011-0151-3}, url = {https://ir.library.oregonstate.edu/concern/articles/nc580n174}, author = {Chapman, John W. and Dumbauld, Brett R. and Itani, Gyo and Markham, John C.} } @mastersthesis {37091, title = {Impacts of Multispecies Parasitism on Coho Salmon (Oncorhynchus kisutch) in Oregon}, year = {2010}, note = {This study examines the impacts of multi-species parasitism on coho salmon. The author found 21 different parasites infecting coho salmon in 10 different coastal rivers.The West Fork of the Smith River in the Umpqua River Basin received detailed study. }, pages = {297 p.}, school = {Oregon State University}, type = {Doctoral dissertation}, edition = {Ph.D.}, chapter = {Dept. of Microbiology}, address = {Corvallis, Or.}, keywords = {a tributary of the Siletz River, a tributary of the West Fork of the Smith River, Alsea River, Beaver Creek, Cascade Creek, Coho salmon = Oncorhynchus kisutch, Coos Bay, Crane Creek, depleted populations, East Fork Lobster Creek, East Fork Trask River, Gold Creek, juvenile fish, Lobster Creek, Lower North Fork Nehalem River, Mill Creek, Moore Creek, parasites, Siletz River, theses, Upper North Fork Nehalem River, West Fork Smith River, Winchester Creek, Yaquina River}, url = {https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/w3763965v}, author = {Ferguson, Jayde A.} } @mastersthesis {37231, title = {The Relative Effects of Ceratomyxa shasta on Crosses of Resistant and Susceptible Stocks of Summer Steelhead}, year = {1986}, note = {In 1971, after a new fishway was built at Willamette Falls, ODFW introduced summer steelhead into the Upper Willamette River, from stocks from the Siletz and Skamania rivers. The Skamania fish returned, but the steelhead that originated from Siletz River stock did not, due to infection by a myxosporean parasite, Ceratomyxa shasta. Subeequent testing for resistance to infection showed that the Siletz and Umpqua River stocks are susceptible to this infection. This thesis shows that even disease-resistant stocks can have their resistance weakened by interbreeding with less-resistant strains, a potentially dangerous side-effect of hatcheries. M.S., Dept. of Fisheries and Wildlife, OSU.}, pages = {19 p.}, school = {Oregon State University}, type = {Masters Thesis}, edition = {M.S.}, chapter = {Dept. of Fisheries and Wildlife}, address = {Corvallis, Or.}, keywords = {Ceratomyxa shasta, genetics, hatcheries, natural resource management, parasites, Siletz River, Skamania River, steelhead trout = Oncorhynchus mykiss, theses, Umpqua River}, url = {https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/zp38wf73f}, author = {Wade, Mark} } @article {38151, title = {Relative susceptibility of four strains of summer steelhead to Infection by Ceratomyxa shasta}, journal = {Transactions of the American Fisheries Society}, volume = {122}, year = {1983}, note = {This article illustrates the lack of disease resistance in Siletz River steelhead trout to a disease caused by a protozoan parasite. {\textquotedblleft}All the summer steelheads Salmo gairdneri from the Siletz, an Oregon coastal river in which Ceratomyxa shasta does not occur, died when they were exposed to waters containing the infectious Stage of C. shasta. In contrast, three strains of summer steelhead from tributaries of the Columbia River where C. Shasta is endemic were resistant to ceratomyxosis.{\textquotedblright} (from the Abstract)}, month = {1983, Jul.}, pages = {p.541-543}, keywords = {Ceratomyxa Shasta, Clearwater River, Columbia River, Deschutes River, fish disease, parasites, Siletz River, Skamania River, steelhead trout = Oncorhynchus mykiss}, doi = {https://doi.org/10.1577/1548-8659(1983)112<541:RSOFSO>2.0.CO;2}, author = {Buchanan, D. V. and Sanders, J. E. and Zinn, J. L. and Fryer, J. L.} } @article {38041, title = {Glochidiosis of salmonid fishes. 3. Comparative susceptibility to natural infection with Margaritifera margaritifera (L.) (Pelecypoda: Margaritanidae) and associated histopathology}, journal = {Journal of Parasitology}, volume = {64}, year = {1978}, note = {Freshwater mussel larvae (glochida) can feed by attaching themselves to the gills or skin of passing fish. Such a parasitic infection may severely stress fish. In this article, the author reports on the relative susceptibility of salmonid fishes to natural infection. Fish were put in cages in a section of the Siletz River (mile 21) where there were {\textquotedblleft}approximately 100,000{\textquotedblright} adult freshwater mussels. {\textquotedblleft}Densities that exceeded 400 mussels{\textquotedblright} per square meter were common. (p.528) He found that Chinook salmon were most susceptible, while coho salmon had the greatest resistance. }, month = {1978, Jun.}, pages = {p.528-537}, keywords = {Chinook salmon = Oncorhynchus tshawytscha, Coho salmon = Oncorhynchus kisutch, cutthroat trout = Oncorhynchus clarki, developmental stages, Freshwater pearl mussel = Margaritifera margaritifera, histology, life history information, parasites, Siletz River, steelhead trout = Oncorhynchus mykiss}, author = {Karna, Duane W. and Raymond E Millemann} } @mastersthesis {54996, title = {Myxosporidans of Rainbow and Cutthroat Trout Broodstocks from Oregon Hatcheries}, year = {1978}, note = {This is a thorough look at various myxosporidian parasites of Oregon trout. Includes recommendations to prevent the spread of infections. Includes photographs of microscopic slides of the parasites and maps of their distribution in the late 1970s. Masters thesis. Major professor was J. L. Fryer.}, pages = {75 p.}, school = {Oregon State University}, type = {Masters Thesis}, edition = {M. S.}, chapter = {Dept. of Fisheries and Wildlife}, address = {Corvallis, Or.}, keywords = {Alsea Fish Hatchery, Big Creek Fish Hatchery, Cole Rivers Fish Hatchery, Coos River, cutthroat trout = Oncorhynchus clarki, Deschutes River, hatcheries, hatchery salmonids, Leaburg Fish Hatchery, McKenzie River, Millicoma River, Nehalem Fish Hatchery, North Fork Alsea River, parasites, Rainbos trout = Oncorhynchus mykiss, Roaring River Fish Hatchery, Salmon River Fish Hatchery, Santiam River, Siletz Fish Hatchery, theses, Trask River, Willamette Fish Hatchery, Yaquina River}, url = {https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/3n204196b}, author = {Sweet, Diane Ruth} } @mastersthesis {37151, title = {Epizootiology of Margaritifera margaritifera (L.) (Mullusca: Margaritanidae) Infection in Salmonid Fishes}, year = {1973}, note = {At some point in their free-living period, the larvae of most freshwater mussels must attach to the fins, skin or gills of a fish host in order to undergo metamorphosis to the adult mussel stage. The larvae encyst on the host for several weeks, then at maturity break out of the cyst and settle on the streambed. This thesis deals with larval mussel infections of salmonids on the Siletz River. Chinook salmon were the most vulnerable to this parasitism, while coho salmon seemed to have some sort of resistance. Parasitism in the gills can affect the respiratory capacity of the fish. Includes original color photomicrographs.}, pages = {66 p.}, school = {Oregon State University}, type = {Masters Thesis}, edition = {M.S.}, chapter = {Dept. of Fisheries and Wildlife}, address = {Corvallis, Or.}, keywords = {Chinook salmon = Oncorhynchus tshawytscha, Coho salmon = Oncorhynchus kisutch, cutthroat trout = Oncorhynchus clarki, ecology, Freshwater peal mussel = Margaritifera margaritifera, habitats, life history information, parasites, Siletz River, steelhead trout = Oncorhynchus mykiss, theses, water temperature}, url = {https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/jm214s423}, author = {Karna, Duane William} } @article {37741, title = {Some diseases of Oregon fish and game and identification of parts of game animals}, volume = {no.322}, year = {1934}, note = {"During the winter of 1932-33 a good many steelhead trout taken from the Alsea river in Lincoln county were found infested with thorn-headed worms... Just how serious this parasite is to the fish is not definitely known." (p.16) Regarding the nematode Contracoecum, "Chinook salmon ... from the Siletz River some three miles from the mouth were quite heavily parasitized ... This parasite lives in the stomach and intestines of fish-eating birds, fish-eating mammals, and fish. To what extent this parasite damages the salmon is not definitely known."}, month = {05/1934}, pages = {23 p.}, address = {Corvallis, Ore.}, keywords = {Acanthocephala spp., Chinook salmon = Oncorhynchus tshawytscha, Contracoecum spp., fish diseases, fishes, parasites, steelhead trout = Oncorhynchus mykiss}, url = {https://ir.library.oregonstate.edu/concern/administrative_report_or_publications/mk61rh40d}, author = {Shaw, J. N. (James Niven) and Simms, B. T. (Bennett Thomas) and Muth, O. H. (Otto Herbert)} }