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Bivalve Monitoring: Figure 4.18

Contents
1. Introduction
2. Water Monitoring
3. Sediment Monitoring
4. Bivalve Monitoring
  4.1 Background
  4.2 Accumlation Factors
  4.3 Guidelines
  4.4 Biological Condition & Survival
  4.5 Trends
  4.6 Discussion
  4.7 References
5. Condition of the Estuary
6. Description of Methods
7. QA Tables
8. Data Tables

 

Tables

4.1 Tissue Guidelines

 

Figure 4.18. Condition indices of three species of bivalve at their original "reference" locations, prior to deployment (T-0), and at the end of their exposure to San Francisco Estuary waters (various locations) during the wet and dry seasons of 1998. NS = not sampled, u = all bivalves allotted to chemistry, Q = 0 % survival, and s = insufficient clams for deployment. Data for C. fluminea at station T-0 were not available. Bars indicate range of values.

Figures

 

4.1 Arsenic
4.2 Cadmium
4.3 Chromium
4.4 Copper
4.5 Lead
4.6 Mercury
4.7 Nickel
4.8 Selenium
4.9 Silver
4.10 Tributyltin

 

 

4.11 Zinc
4.12 Total PAH
4.13 Total PCB
4.14 Total DDT
4.15 Total Chlordane
4.16 Dieldrin
4.17 Survival
4.18 Condition Indices
4.19 Arsenic Trends
4.20 Cadmium Trends

 

 

4.21 Chromium Trends
4.22 Copper Trends
4.23 Lead Trends
4.24 Mercury Trends
4.25 Nickel Trends
4.26 Selenium Trends
4.27 Silver Trends
4.28 Zinc Trends
4.29 PAH Trends
4.30 PCB Trends
4.31 DDT Trends

 

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