During winter, primary production is low throughout San Francisco Bay.

Primary production is low because low light levels and cool temperatures result in low concentrations of phytoplankton.

Productivity (milligrams carbon per square meter per day)

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The URL of this page is http://sfbay.wr.usgs.gov/access/ColeCloern/DecDist.html
Pages created and maintained by Laura Zink Torresan
Last modified: 2 April 1997