USGS - science for a changing world

Access USGS - San Francisco Bay and Delta

Main Page
Introduction
Methods
Trends in Metals in the Bay
Trends in PARWQP Inputs
Clam/Source Relationship
Response to Metal Stress
Summary
Contaminant Distribution Home
Access Home
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
  • During periods of highest metal concentrations, reproductivity in <i>Macoma balthica</i> 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 1988&#150;91.

  • Between 1989&#150;1997, Cu and Zn were more strongly correlated to surrogate measures of urban runoff. This was not the case before 1989.

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USAGov: Government Made Easy U.S. Department of the Interior | U.S. Geological Survey
URL:http://sfbay.wr.usgs.gov/contaminant/bioavail/so_bay/summary.html
Page Contact Information: Access USGS SF Bay & Delta Web Team
Page Last Modified: Thursday, 13-Dec-2007 12:22:14 PST