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Linkage of Bioaccumulation and Biological Effects to Changes in Pollutant Loads in South San Francisco Bay
Michelle Hornberger, Samuel Luoma, Daniel Cain, Cynthia Brown, Robin Bouse,
Francis Parchaso, Christopher Wellise, and Janet Thompson

As metal concentrations began to decrease, reproductive activity increased. During the period when metal concentrations were at their highest, reproductive activity was low.

Click to see a larger version of this graph.

% of reproductively active clams in 74-76% of reproductively active clams in 79-81% of reproductively active clams in 83-85% of reproductively active clams in 88-89

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