Salmon Snapshots

Redwood Creek (Humboldt County)

2016/17 Population

Estimate of Ocean Returning Fish

Coho

Oncorhynchus kisutch

Chinook

Oncorhynchus tshawytscha

Steelhead

Oncorhynchus mykiss

What We Have  
unknown
unknown
unknown
What We Need  
4,900
3,400
5,800
Notes:

Estimate of the number of spawning fish nests (called redds) provided by the California Department of Fish and Wildlife. Population estimates of the number of fish will be based on these redd estimates. The California Coastal Salmonid Monitoring Program for Redwood Creek initiated in 2008/09. Not surveyed due to lack of funding.

Coho, Chinook and steelhead are 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, NMFS 2016). Steelhead adult spawning target is sum of 3,200 spawners for Lower Redwood Creek population and 2,600 spawners for Upper Redwood Creek population.

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.

National Marine Fisheries Service. 2016. Final Coastal Multispecies Recovery Plan. National Marine Fisheries Service, West Coast Region, Santa Rosa, California.

 

fish images © Joe Tomelleri

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