Steelhead and salmon distinct population segments

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Endangered and Threatened Species DPS and ESU U.S. range for Steelhead and Salmon

The National Oceanic and Atmospheric Administration in cooperation with the U.S. Fish and Wildlife Service and Environmental Protection Agency groups steelhead and salmon into distinct population segments. There are currently 15 Distinct population segments (DPS) for steelhead (Oncorhynchus mykiss) and 31 Evolutionary significant units (ESU) for five species of Pacific salmon Oncorhynchus. The boundaries of these areas are used to determine whether specific populations of a species should be designated threatened or endangered species under the Endangered Species Act.

Steelhead distinct population segment

Steelhead Oncorhynchus mykiss
DPS/ESU Name	Initial/Revised status	Current status	Boundary Map^[1]
Southern California DPS	Endangered (1997), (2006)^[2]	Endangered (2011)	File:Sc steelhead.pdf 100px
South-Central California Coast DPS	Endangered (1997), Threatened (2006)^[3]	Threatened (2011)	File:Sccc steelhead.pdf 100px
California Central Valley DPS	Threatened (1998), (2006)^[4]	Threatened (2011)	File:Ccv steelhead.pdf 100px
Central California Coast DPS	Threatened (1998), (2006)^[5]	Threatened (2011)	File:Ccc steelhead.pdf 100px
Northern California DPS	Threatened (1998), (2006)^[5]	Threatened (2011)	File:Nc steelhead.pdf 100px
Klamath Mountains Province DPS			File:Kmp steelhead.pdf 100px
Lower Columbia River DPS	Threatened (1998), (2006)^[6]	Threatened (2011)	File:Lcr steelhead.pdf 100px
Middle Columbia River DPS	Threatened (1999), (2006)^[7]	Threatened (2011)	File:Mcr steelhead.pdf 100px
Oregon Coast DPS			File:Orc steelhead.pdf 100px
Puget Sound DPS	Threatened (1997)^[8]	Threatened (2011)	File:Ps steelhead.pdf 100px
Olympic Peninsula DPS			File:Op steelhead.pdf 100px
Snake River Basin DPS	Threatened (1997), (2006) ^[9]	Threatened (2011)	File:Sr steelhead.pdf 100px
Southwest Washington DPS			File:Sww steelhead.pdf 100px
Upper Columbia River DPS	Endangered (1997), Threatened (2006), Endangered (2007), Threatened (2009)^[10]	Threatened (2011)	File:Ucr steelhead.pdf 100px
Upper Willamette River DPS	Threatened (1999), (2006)^[11]	Threatened (2011)	File:Uwr steelhead.pdf 100px

Pacific salmon evolutionary significant unit

Chinook salmon Oncorhynchus tshawytscha
DPS/ESU Name	Initial/Revised status	Current status	Boundary Map^[1]
Central Valley Spring-run ESU	Threatened (1995), (2005)^[12]	Threatened (2011)	File:Web pdfs cvsr chinook.pdf 100px
Central Valley Fall-run and Late Fall-run ESU			File:Web pdfs cvfr chinook.pdf 100px
California Coast ESU	Threatened (1999), (2005) including hatchery stocks^[13]	Threatened (2011)	File:Web pdfs cc chinook.pdf 100px
Oregon Coast ESU			File:Web pdfs orc chinook.pdf 100px
Mid-Columbia River Spring-run ESU			File:Web pdfs mcsr chinook.pdf 100px
Lower Columbia River ESU	Threatened (1999), (2005)^[6]	Threatened (2011)	File:Web pdfs lcr chinook.pdf 100px
Deschutes River Summer/Fall-run ESU			File:Web pdfs drsf chinook.pdf 100px
Southern Oregon & Northern California Coastal ESU			File:Web pdfs soncc chinook.pdf 100px
Snake River Spring/Summer-run ESU	Threatened (1992), (2005)^[9]	Threatened (2011)	File:Web pdfs srss chinook.pdf 100px
Snake River Fall-run ESU	Threatened (1992), (2005)^[9]	Threatened (2011)	File:Web pdfs srfr chinook.pdf 100px
Sacramento River Winter-run ESU	Threatened (1989), (1990), Endangered (1992), Threatened (2004), Endangered (2005)^[14]	Endangered (2011)	File:Web pdfs srwr chinook.pdf 100px
Puget Sound ESU	Threatened (1995), (2005)^[8]	Threatened (2001)	File:Web pdfs ps chinook.pdf 100px
Washington Coast ESU			File:Web pdfs wcc chinook.pdf 100px
Upper Willamette River ESU	Threatened (1999), (2005)^[11]	Threatened (2011)	File:Web pdfs uwr chinook.pdf 100px
Upper Klamath-Trinity Rivers ESU			File:Web pdfs uktr chinook.pdf 100px
Upper Columbia River Summer/Fall-run ESU			File:Web pdfs ucsf chinook.pdf 100px
Upper Columbia River Spring-run ESU	Endangered (1999), (2005)^[10]	Endangered (2011)	File:Web pdfs ucsr chinook.pdf 100px
Coho salmon Oncorhynchus kisutch
DPS/ESU Name	Initial/Revised status	Current status	Boundary Map^[1]
Central California Coast ESU	Endangered (1996), (2005) including hatchery stocks^[13]	Endangered (2011)	File:Web pdfs ccc coho.pdf 100px
Lower Columbia River ESU	Threatened (2005)^[6]	Threatened (2011)	File:Web pdfs lcr coho.pdf 100px
Olympic Peninsula ESU			File:Web pdfs op coho.pdf 100px
Oregon Coast ESU			File:Web pdfs orc coho.pdf 100px
Puget Sound/Strait of Georgia ESU			File:Web pdfs ps coho.pdf 100px
Southern Oregon/Northern California ESU	Threatened (1997), (2005)^[15]	Threatened (2011)	File:Web pdfs sonc coho.pdf 100px
Southwest Washington ESU			File:Web pdfs sww coho.pdf 100px
Sockeye salmon Oncorhynchus nerka
DPS/ESU Name	Initial/Revised status	Current status	Boundary Map^[1]
Baker River ESU			File:Web pdf br sockeye.pdf 100px
Lake Pleasant ESU			File:Web pdf lp sockeye.pdf 100px
Lake Wenatchee ESU			File:Web pdf lw sockeye.pdf 100px
Okanogan River ESU			File:Web pdf or sockeye.pdf 100px
Ozette Lake ESU	Threatened (1999), (2005)^[16]	Threatened (2011)	File:Web pdfs oz sockeye.pdf 100px
Quniault Lake ESU			File:Web pdfs ql sockeye.pdf 100px
Snake River ESU	Endangered (1991), (2005)^[9]	Endangered (2011)	File:Web pdf sr sockeye.pdf 100px
Chum salmon Oncorhynchus keta
DPS/ESU Name	Initial/Revised status	Current status	Boundary Map^[1]
Columbia River ESU	Threatened (1999), (2005)^[6]	Threatened (2011)	File:Web pdfs col chum.pdf 100px
Hood Canal Summer-run ESU	Threatened (1995), (2005)^[8]	Threatened (2001)	File:Web pdfs hc chum.pdf 100px
Pacific Coast ESU			File:Web pdfs pc chum.pdf 100px
Puget Sound/Strait of Georgia ESU			File:Web pdfs ps chum.pdf 100px
Pink salmon Oncorhynchus gorbuscha
DPS/ESU Name	Initial/Revised status	Current status	Boundary Map^[1]
Even-year ESU			File:Web pdfs evn pink.pdf 100px
Odd-year ESU			File:Web pdfs odd pink.pdf 100px

Notes

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v t e Salmon
Groups and species	Salmon Salmonidae Adriatic salmon Atlantic salmon Black Sea salmon Pacific salmon Chum salmon Chinook salmon Coho salmon Masu salmon Pink salmon Steelhead Sockeye salmon Taiwanese salmon Danube salmon Sabertooth salmon Genetically modified salmon
Fisheries and management	Aquaculture of salmon Fly fishing bibliography Environmental issues with salmon Old McKenzie Fish Hatchery Pre-spawn mortality in coho salmon Puget Sound salmon Putcher Putcher fishing Alaska salmon fishery Salmon conservation Salmon run June hogs
As food	Salmon as food Cured salmon Gravlax Lohikeitto Lomi salmon Lox Rui-be Salmon burger Salmon cannery Salmon tartare Smoked salmon Images
Diseases and parasites	Diseases and parasites in salmon Amoebic gill disease Ceratomyxa shasta Gyrodactylus salaris Henneguya zschokkei Infectious salmon anemia virus M74 syndrome Myxobolus cerebralis Nanophyetus salmincola Salmon louse Sea louse Salmon tapeworm Sphaerothecum destruens Tetracapsuloides bryosalmonae
Organisations	Atlantic Salmon Federation Cook Inlet Aquaculture Association North Atlantic Salmon Conservation Organization Pacific Salmon Commission Welsh Salmon and Trout Angling Association Wild Salmon Center Yakima Klickitat Fisheries Project
Other	Ceasg H. Forman and Son (salmon smokehouse) Salmon (color) Salmon of Knowledge Salmon Fishing in the Yemen The Salmon Fly

Steelhead and salmon distinct population segments

Steelhead distinct population segment

Pacific salmon evolutionary significant unit

Notes

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