2003 Status

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 ST 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 ST 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 ST samples exceeded Hg SV (0.2 ug/g ww)
• 86 of ST samples exceed Aroclor SV (10 ng/g ww)

5
PBDEs (ng/g ww) 2003
ND1
ND7
ND2
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 ST 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