pl23_fish7957.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23fish7957jpgDescription
Three-mile fish ladder at Cazadero Dam. Power dams have changed theenvironment drastically. Ladders - some remarkably successful - are one meansof maintaining runs of salmon against effects of huge enginnering projects. Butnot all problems have been solved.
Credit
NOAA Central Library Historical Fisheries Collection; P. 492 of Our Changing Fisheries 1970 Centenary NMFS centenary volume
Display Date
1969 circa
Collection
Historic Fisheries