View the critical habitat maps or GIS data for these coho. The remainder of their life cycle is spent foraging in estuarine and marine waters of the Pacific Ocean.Ĭritical habitat was designated for the Central California Coast coho salmon in 1999. These fish need cold, clean freshwater streams to lay their eggs, along with side channels and floodplains where young fish can find food and hide from predators. Spawning habitat is comprised of small streams with stable gravel substrates. HabitatĬoho salmon spend approximately the first half of their life cycle rearing and feeding in streams and small freshwater tributaries. Conservation hatchery programs have supported the species in these two areas, and we have recently observed some increases in abundance. Data demonstrated that the species was declining throughout its range, except in two places: the Russian River in Sonoma County, and Scott Creek, in Santa Cruz County. Population Statusīy the late 1990s, Central California Coast coho salmon were on the verge of extinction. The Central California Coast coho salmon ESU represents the southern extent of the species' larger range. This ESU of coho salmon originates from rivers south of Punta Gorda, California to and including Aptos Creek, as well as such coho salmon originating from tributaries to San Francisco Bay.
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