1. Contaminant Concentrations in Fish: 2000 Ben Greenfield and Jay Davis SFEI

2. This talk includes the work of: Marco Sigala, Cassandra Roberts, and Rusty Fairey Moss Landing Marine Labs David Crane, Kathleen Regalado CDFG Water Pollution Control Lab John Wilcockson EVS Environment Consultants Fred Hetzel SFB Regional Water Quality Control Board Patricia Chambers, Jay Davis, Ben Greenfield, Cristina Grosso, Jon Leatherbarrow, John Ross, and Eric Wittner San Francisco Estuary Institute

3. Fish Monitoring Goals Status –Human health advisories Trends Spatial Patterns Special Study Goals Mechanisms

4. Contaminant Concentrations in Fish: 2000 Chemical SamplingSpecial Studies Organochlorines Seasonal Croaker Chemistry –PCBs –DDTs Food Web Study –Chlordanes –Gut Contents –Dieldrin –PCB Food Web Model –Dioxins –PBDEs Stable Isotopes Trace Metals Biomarkers –Mercury –Selenium Crabs and Clams

5. Focus on Species Consumed by Humans or Useful Spatial Indicator Species

9. (All photos courtesy of Cassandra Roberts and Marco Sigala, MLML)

15. Fish Monitoring Goals Status –Human health advisories Trends Spatial Patterns Special Study Goals Mechanisms

16. PCB Concentrations in San Francisco Bay Fish 2000

17. Mercury Concentrations in San Francisco Bay Fish 2000

18. ContaminantNPercent Above PCBs8090% Mercury13438% Dieldrin8019% Selenium1217% DDTs804% Chlordanes800% Percent of Fish Samples That Are Above Screening Values (Screening values from Brodberg and Pollock 1999)

19. Fish Monitoring Goals Status –Human health advisories Trends Spatial Patterns Special Study Goals Mechanisms

21. Seasonal Variation In White Croaker PCBs 2000

22. Fish Monitoring Goals Status –Human health advisories Trends Spatial Patterns Special Study Goals Mechanisms

24. Fish Monitoring Goals Status –Human health advisories Trends Special Study Goals Mechanisms

25. Special Study 1: Contaminant Mapping In the Estuary (Data from RMP and BPTCP plotted by Eric Wittner, SFEI)

26. Special Study 2: Field Study Of Food Web Uptake

29. Sediment Shiner Surfperch White Croaker Jacksmelt Zooplankton Algae Grass Shrimp MollusksPolychaete Worms Amphipods Special Study 3: A PCB Food Web Model

30. Pattern… And Mechanisms…