Recovering Steelhead in Napa County
Thirteen waterways in Napa County once supported Central California Coast Steelhead at population densities of greater than one fish per square meter. Steelhead populations show evidence of decline in all thirteen waterways (Leidy et al 2005). In 1997, the National Marine Fisheries Service (NMFS) listed Central California Coast steelhead as a distinct evolutionary unit that is threatened with extinction.