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| Coho salmon (Oncorhynchus kisutch) | |
|---|---|
| Name | Coho salmon |
| Taxon | Oncorhynchus kisutch |
Coho salmon (Oncorhynchus kisutch) Coho salmon are a species of Pacific salmon widely recognized for their role in fisheries, ecosystems, and cultural traditions. Populations occur across North Pacific regions and have been the subject of management by agencies and conservation efforts involving numerous NGOs, Indigenous Nations, and international agreements. Research on Coho involves institutions, museums, and universities engaged in ichthyology, fisheries science, and conservation biology.
The scientific name was established in taxonomic works and catalogues maintained by naturalists and museums such as the Smithsonian Institution, the Natural History Museum, and the American Museum of Natural History, with subsequent treatments in monographs by ichthyologists at the University of Washington and the California Academy of Sciences. Common names appear in records from the Alaska Department of Fish and Game, Fisheries and Oceans Canada, and the National Oceanic and Atmospheric Administration, and vernacular names are preserved in oral histories of the Haida, Tlingit, Coast Salish, and Yurok peoples. Taxonomic revisions reference comparative collections at the British Museum, Royal Ontario Museum, and University of California publications, and phylogenetic analyses cite sequencing data archived by GenBank and analyzed in journals such as Nature, Science, and Proceedings of the National Academy of Sciences.
Adults are diagnosed morphological traits described in field guides published by the Audubon Society, American Fisheries Society, and the Royal Society. Diagnostic characters are compared in identification keys used by the Alaska Science Center, Oregon State University extension, and the Washington Department of Fish and Wildlife, and illustrated in plates from the National Geographic Society and the Encyclopedia Britannica. Morphometrics and meristics are reported in expeditions supported by the National Science Foundation, and specimen images appear in catalogs curated by the Smithsonian Institution and the Burke Museum. Sexual dimorphism, including kypes and coloration changes, is documented in publications from Stanford University, the University of British Columbia, and the Monterey Bay Aquarium Research Institute.
Coho populations are distributed across regions monitored by agencies such as the North Pacific Anadromous Fish Commission, the Pacific Salmon Commission, and regional governments including Alaska, British Columbia, Washington, Oregon, California, Hokkaido, and Kamchatka. Occurrence records are integrated in biogeographic studies overseen by the International Union for Conservation of Nature and datasets used by the Intergovernmental Panel on Climate Change and the Food and Agriculture Organization. Habitat descriptions reference watershed analyses from the U.S. Geological Survey, Environment Canada, and the Ministry of the Environment of Japan, with river systems such as the Columbia River, Fraser River, Sacramento River, Yukon River, and Amur River repeatedly cited. Estuarine and nearshore habitats are studied by institutions like the Scripps Institution of Oceanography, Woods Hole Oceanographic Institution, and the Hakai Institute.
Life history stages are detailed in management plans from the National Marine Fisheries Service, Fisheries and Oceans Canada, and state agencies in Alaska and California. Eggs, alevins, fry, parr, smolt, ocean-phase adults, and spawning adults are described in training manuals used by the Pacific Salmon Commission and conservation NGOs including Trout Unlimited and The Nature Conservancy. Migration timing and homing behavior are subjects of telemetry studies conducted by the Alaska Fisheries Science Center, NOAA Fisheries, and university teams at the University of Washington, University of Oregon, and University of British Columbia, often published in journals like Ecology, Journal of Fish Biology, and Conservation Biology.
Feeding ecology in freshwater and marine phases has been examined by researchers at the Monterey Bay Aquarium Research Institute, Hakai Institute, and the Alaska SeaLife Center, with diet studies appearing in Marine Ecology Progress Series and Fishery Bulletin. Prey items and trophic interactions are analyzed in food-web studies involving species such as herring, sand lance, krill, cod, and seabirds monitored by the Audubon Society and BirdLife International. Predation pressure involves apex predators documented by the National Park Service and regional agencies, including killer whales studied by the Center for Whale Research and brown bears recorded in reports from Katmai National Park. Ecosystem services provided by Coho are highlighted in assessments by the World Wildlife Fund, Ramsar Convention reports, and regional restoration projects led by the Bonneville Power Administration and the Pacific Salmon Foundation.
Commercial, recreational, and Indigenous fisheries are regulated under frameworks involving NOAA Fisheries, Fisheries and Oceans Canada, the Pacific Fishery Management Council, and regional commissions. Harvest histories are chronicled in records held by the International Pacific Halibut Commission and the North Pacific Anadromous Fish Commission, while stock assessment models are developed by the Pacific Salmon Commission and academic groups at the University of British Columbia and Oregon State University. Conservation measures include hatchery programs run by state and provincial agencies, habitat restoration funded by the Bonneville Power Administration and the Gordon and Betty Moore Foundation, and legal protections invoked under statutes administered by the U.S. Fish and Wildlife Service and Environment and Climate Change Canada. Collaborative initiatives involve Indigenous Nations, the Wild Salmon Center, Trout Unlimited, and Marine Stewardship Council certification processes.
Coho feature prominently in the cultures of the Haida, Tlingit, Coast Salish, Yurok, and Kwakwaka'wakw, with ceremonial and subsistence importance documented by museums such as the Canadian Museum of History and the Smithsonian's National Museum of the American Indian. Economic impacts are reported by agencies including the Alaska Department of Labor, the California Department of Fish and Wildlife, and regional fisheries co-operatives, and are analyzed in reports by the World Bank and the Asian Development Bank when addressing coastal economies. Art, literature, and festivals referencing salmon are supported by institutions like the National Endowment for the Arts, the British Columbia Arts Council, and regional cultural centers, while culinary traditions are preserved in cookbooks and archives held by the Library of Congress and national libraries.