Protecting and Restoring the Morro Bay Estuary.
anadromous fish

Field Updates December 2021: Water Quality Monitoring and Local Steelhead Populations

A steelhead (Oncorhynchus mykiss) was captured from the Chorro Creek sub-watershed and measured before safely being released back into the water.

Steelhead in the Morro Bay Watershed  One of the fascinating creatures living in our local creeks is the South Central California Coast Steelhead (Oncorhynchus mykiss). This genetically-distinct population of steelhead is found exclusively from the Pajaro River to the Santa Maria River, and while historically abundant, they were listed as “Threatened” by the National Marine Fisheries Service in 1997 due to rapidly declining numbers. This species continues to struggle due to habitat loss, lack of water, and competition with invasive species.   Steelhead belong to the Salmonidae family, along with other species of trout and salmon. Steelhead are anadromous, meaning they are born in freshwater streams, migrate out to sea for several years, and …

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