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Linkage
of Bioaccumulation and Biological Effects to Changes
in Pollutant Loads in South San Francisco Bay
by Michelle Hornberger,
Samuel Luoma, Daniel Cain, Cynthia Brown, Robin Bouse,
Francis Parchaso, Christopher Wellise, and Janet Thompson
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Methods
- Near-monthly
samples of surface sediments and the deposit
feeding clam Macoma balthica have been collected
since 1977 near the PARWQP (see
map), and have been analyzed for metals
(Ag, Cu, Fe, Mn, Zn from 1977 - present; Al,
Cd, Cr, Ni and V added in 1991).
- Loading data,
provided by the city of Palo Alto, were correlated
with clam tissue concentrations to determine
relationships between point-source loads and
metal bioaccumulation.
- Reproduction
data was determined from archived samples during
four different time periods (1974 -1989).
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