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
During periods
of highest metal concentrations, reproductivity
in Macoma balthica appeared to be suppressed,
suggesting a link between metal loads and reproductive
success.
Declines in silver
and copper concentrations coincide with improvements
at the treatment facility.
Cu loads from
the PARWQP strongly influenced Cu bioaccumulation
in Macoma balthica through 198891.
Between 19891997,
Cu and Zn were more strongly correlated to surrogate
measures of urban runoff. This was not the case
before 1989.