Salmon Snapshots

Shasta River

2016/17 Population

Estimate of Ocean Returning Fish

Coho

Oncorhynchus kisutch

Chinook

Oncorhynchus tshawytscha

Steelhead

Oncorhynchus mykiss

What We Have  
48
2,889
35
What We Need  
4,700
*
*
Notes:

Population estimate for coho represent both naturally produced and hatchery produced adult fish and jacks (age 2 fish) that spawn naturally in the river. 33 adult steelhead observed via video counts. Video monitoring period: 9/6/16-12/13/16. 3 adult steelhead detected using ARIS sonar unit. Monitoring period 12/19/16-5/5/17. Data provided by California Department of Fish and Wildlife. Data are preliminary and subject to change.

Coho salmon in the Shasta 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 Shasta basin not considered at risk of extinction by NMFS. No target defined.

The 2016/17 snapshot is defined as fall 2016 to spring 2017, as per when salmon and steelhead return from the ocean to spawn. Fall Chinook spawning season is fall 2016. Coho season is fall through early January 2017. Steelhead season can start in fall 2016 but is primarily winter and spring 2017.


References

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

Williams, T. H., B.C. Spence, W. Duffy, D. Hillemeier, G. Kautsky, T.E. Lisle, M. McCain, T.E. Nickelson, E. Mora, and T. Pearson. 2008. Framework for assessing viability of Threatened coho salmon in the Southern Oregon/Northern California Coast Evolutionary Significant Unit. U.S.Department of Commerce, NOAA Technical Memorandum NMFS-SWFSC-432. 

fish images © Joe Tomelleri

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