The following marine mammals, sea turtles, and salmonids can be found within or off the coast of Washington State. Many of these species are in danger of becoming extinct and have been listed under the Endangered Species Act.
Southern Resident Killer Whale (Orcinus orca)Humpback whale (Megaptera novaeangliae)Leatherback sea turtle (Dermochleys coriacea)Snake River [Evolutionary Significant Unit (ESU)] sockeye salmon (Oncorhynchus nerka)Upper Columbia River DPS steelhead (O. mykiss)Upper Columbia River spring-run ESU Chinook salmon (O. tshawytscha)
Columbia River ESU chum salmon (O. keta) Green sea turtle (Chelonia mydas)Hood Canal summer-run ESU chum salmon (O. keta)Loggerhead sea turtle (Caretta caretta) Lower Columbia River DPS steelheadLower Columbia River ESU Chinook salmon (O. tshawytscha)Lower Columbia River ESU coho salmon (O. Kisutch)Middle Columbia River DPS steelhead (O. mykiss) Ozette Lake ESU sockeye salmon (O. nerka)Puget Sound ESU Chinook salmon (O. tshawytscha)Puget Sound DPS steelhead (O. mykiss)Snake River Basin DPS steelhead (O. mykiss) Snake River fall-run ESU Chinook salmon (O. tshawytscha)Snake River spring/summer-run ESU Chinook salmon (O. tshawytscha)Southern Green Sturgeon DPS (Acipenser medirostris)Steller sea lion (Eumetopias jubatus)Upper Willamette River DPS steelhead (O. mykiss) Upper Willamette River ESU Chinook salmon (O. tshawytscha)
DesignatedColumbia River EUS chum salmon Hood Canal Summer-run ESU chum salmonLower Columbia River DPS steelhead salmon Lower Columbia River ESU Chinook salmonMiddle Columbia River DPS steelhead salmon Ozette Lake ESU sockeye salmonPuget Sound ESU sockeye salmon Snake River Basin DPS steelhead salmonSnake River fall-run ESU Chinook salmonSnake River spring/summer-run ESU Chinook salmonSnake River ESU sockeye salmonSouthern Resident Killer Whale Upper Columbia River DPS steelhead salmon Upper Columbia River spring-run ESU Chinook salmonUpper Willamette River DPS steelhead Upper Willamette River ESU Chinook salmon