Salmon Snapshots

Scott River

2015/16 Population

Estimate of Ocean Returning Fish

Coho

Oncorhynchus kisutch

Chinook

Oncorhynchus tshawytscha

Steelhead

Oncorhynchus mykiss

What We Have  
212
2,113
Incomplete data
What We Need  
6,500
*
*
Notes:

Population estimate (direct count video weir and mark/recapture) for coho and Chinook. The 2015-16 coho estimate is an underestimate of the actual run size, as the 2015 monitoring period ended prior to the end of the coho. Incomplete data for steelhead due to monitoring ending prior to majority of the steelhead migration. Data provided by California Department of Fish and Wildlife. Data are preliminary and subject to change.

Coho salmon in the Scott River basin are state and federally listed as threatened. The “What We Need” spawner population abundance targets shown above represent just one of several criteria that the National Marine Fisheries Service considers when determining whether a species should be removed from the Federal List of Endangered and Threatened Wildlife and Plants (50 CFR 223.102). Recovering any of the species entails meeting criteria for abundance, productivity, diversity, and spatial structure across multiple watersheds, as well as criteria for alleviating threats (NMFS 2014).

* Chinook salmon and steelhead populations in the Scott River basin not considered at risk of extinction by NMFS. No target defined.

The 2015/16 snapshot is defined as fall 2015 to spring 2016, as per when salmon and steelhead return from the ocean to spawn. Fall Chinook spawning season is fall 2015. Coho season is fall through early January 2016. Steelhead season can start in fall 2015 but is primarily winter and spring 2016. Spring Chinook return in spring 2016 and spawn in the fall 2016.

References

National Marine Fisheries Service. 2014. Final Recovery Plan for the Southern Oregon Northern California Coast Evolutionarily Significant Unit of Coho Salmon (Oncorhynchus kisutch). National Marine Fisheries Service. Arcata, CA.

California Department of Fish and Wildlife. 2016. Scott River Salmon Studies. Prepared by Morgan Knechtlle and Diana Chesney. Yreka, CA

fish images © Joe Tomelleri

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