Area	North Fork Big River
Topic	Temperature: Min, Max and Average (F), North Fork Big River, 2001

 

Caption:  Daily minimum, maximum and average water temperature in the North Fork Big River (MRC 75-1) did not exceeded the lethal threshold of 75 degrees F in during the summer of 2001.The water temperature exhibited at this site, however, is unsuitable for coho salmon. The 75 degree F (23.9 C) daily maximum for coho salmon was chosen as a threshold for the North Coast Watershed Assessment Program based on literature review. This value, however, is based on laboratory tests and much lower temperatures will cause loss of coho in the wild (see Temperature Background page). See Info Links for more information. Data provided by the Mendocino Redwoods Timber Company. Click on Picture for map of locations.

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