project on bioaccumulation

Carole Lyle DeMort cdemor at fair.net
Tue Feb 4 22:41:17 EST 1997

In response to C. Pickering, concerning heavy metal loading in fish 
species.  In the St. Johns River in Florida, mercury seems to be the 
most pressing problem.  We appear to have high background levels of 
mercury in the sediments in our swamp-fed systems here.  Even in 
relatively isolated areas of the Everglades.  How much is too much?  
Mercury complexes with the high organic content of our sediments down 
here and moves up the trophic levels.

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