Jan

29

Science on Tap: Biological monitoring and conservation efforts of endangered Central California Coast Coho - a Lagunitas Creek case study

located at The Crepe Place happens on Wed Jan 29 at 7:00 pm Please note – This event has already happened
Free in the heated patio!

Biological monitoring and conservation efforts of endangered Central California Coast Coho - a Lagunitas Creek case study

Located in Marin County, CA, Lagunitas Creek is the southernmost population of wild Coho
Salmon (Oncorhynchus kisutch) in the country. This Ecologically-Significant Unit (ESU) is not influenced by commercial or conservation hatcheries, and may act as a baseline reference for the management of this species in central California. For over 2 decades, biologists at the Marin Municipal Water District (MMWD) have been conducting routine surveys in Lagunitas Creek and its major tributaries to estimate the overall abundance of coho and other native salmonids. Constant, year-round monitoring of all freshwater life stages has resulted in decade-long trends showing population dynamics, general system attributes, and factors that are limiting the recovery of this species. This talk will focus primarily on the monitoring and conservation efforts conducted by various agencies in Marin County, and the threats and circumstances currently affecting this species’ recovery in the Bay Area. For years, accessible winter habitat was the main driver for low recruitment success, but active restoration has potentially weakened this variable’s control on the species’ abundance and survivorship. Future research is necessary to understand what stressors will continue to persist as negative selective pressures on this population’s recovery, and more active research is required to fill in potential gaps in our understanding of both estuary and marine survival.
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TCP Added by TCP from Santa Cruz CA

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