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Contaminant Concentrations in Fish: 2000 PowerPoint Presentation
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Contaminant Concentrations in Fish: 2000

Contaminant Concentrations in Fish: 2000

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Contaminant Concentrations in Fish: 2000

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Presentation Transcript

  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

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

  7. Fish Monitoring Goals • Status • Human health advisories • Trends • Spatial Patterns Special Study Goals • Mechanisms

  8. PCB Concentrations in San Francisco Bay Fish 2000

  9. Mercury Concentrations in San Francisco Bay Fish 2000

  10. Percent of Fish Samples That Are Above Screening Values (Screening values from Brodberg and Pollock 1999)

  11. Fish Monitoring Goals • Status • Human health advisories • Trends • Spatial Patterns Special Study Goals • Mechanisms

  12. Seasonal Variation In White Croaker PCBs 2000

  13. Fish Monitoring Goals • Status • Human health advisories • Trends • Spatial Patterns Special Study Goals • Mechanisms

  14. Fish Monitoring Goals • Status • Human health advisories • Trends Special Study Goals • Mechanisms

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

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

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

  18. Pattern… And Mechanisms…