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2003 Status & Trends Triennial Fish Monitoring

2003 Status & Trends Triennial Fish Monitoring. Update to RMP Fish Committee Jennifer Hunt, Ben K. Greenfield, Jay A. Davis SFEI Marco Sigala, Cassandra Roberts, Rusty Fairey Moss Landing Marine Labs Dave Crane, Kathleen Regalado, L.Nguyen, Gary Ichikawa CDFG.

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2003 Status & Trends Triennial Fish Monitoring

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  1. 2003 Status & TrendsTriennial Fish Monitoring Update to RMP Fish CommitteeJennifer Hunt, Ben K. Greenfield, Jay A. DavisSFEIMarco Sigala, Cassandra Roberts, Rusty FaireyMoss Landing Marine LabsDave Crane, Kathleen Regalado, L.Nguyen, Gary IchikawaCDFG

  2. 2003 Status & TrendsTriennial Fish Monitoring • Status and Trends • 7 species • Added PBDE analysis for S&T species • Looked at As in 5 individual leopard sharks & 3 smoothound sharks • Looked at MeHg in 9 individual leopard sharks and 9 individual smoothound sharks • We now have time series data from 1994-2003

  3. 2003 Results – Status & TrendsSome Good News • All S&T fish below the Screening Value (SV) (30 ng/g ww) for chlordanes • Only 1 sample exceeded DDT SV (100 ng/g ww) (white sturgeon – South Bay) • Dieldrin SV (2.0 ng/g ww) only exceeded for white croaker (45%) and white sturgeon (50%)

  4. 2003 Results – Status & TrendsSome Not So Good News • 69% of S&T samples exceeded Hg SV (0.2 ug/g ww) • 86% of S&T samples exceed Aroclor SV (10 ng/g ww)

  5. PBDEs (ng/g ww) 2003 ND=1 ND=2 ND=7

  6. Pilot Study 2003 • Preliminary screening • 38% of samples exceeded the Aroclor SV • 43% of samples exceeded the Hg SV

  7. DDTs Lipid Weight

  8. Chlordanes Lipid Weight

  9. Hg in Striped Bass Data are standardized to a 55 cm fish

  10. Trends Summary • Evidence of decline in lipid weight concentrations for DDTs and Chlordanes in most fish species • High variability in PCB data • No long-term trend in striped bass Hg • No long-term trend in sturgeon Se

  11. 2006 S&T Fish Project • Fish Committee meeting Dec 19th to decide sampling strategy • Spring/Summer 2006 – begin sampling • Spring 2007 – Data to SFEI • November 2007 – Final Report

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