The Coastal Resource Coordinator's Bioassessment Manual
The Coastal Resource Coordinator's Bioassessment Manual
The Coastal Resource Coordinator's Bioassessment Manual
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HAZMAT 93-1–Bioaccumulation<br />
Table 4-2. Advantages and disadvantages of the various types of<br />
organisms used in bioaccumulation studies.<br />
Type of Test<br />
Organism<br />
Indigenous<br />
Transplanted<br />
Artificial<br />
Advantages<br />
Indicator of what in situ<br />
organisms are actually<br />
accumulating<br />
Integrates accumulation over<br />
an extended time period<br />
Direct indication of<br />
bioavailability<br />
Reduced variability between<br />
individuals<br />
Organism can be selected<br />
based on environment and<br />
contaminant(s) of concern<br />
Broader coverage of area of<br />
concern, gradients more<br />
readily determined<br />
Minimal variability between<br />
individuals<br />
Broader coverage of area of<br />
concern, gradients more<br />
readily determined<br />
Does not actively select for<br />
contaminants<br />
Disadvantages<br />
Locating an appropriate<br />
organism on-site and at<br />
reference site<br />
Collecting sufficient biomass<br />
for analysis<br />
Possibility of higher individual<br />
variability<br />
Test stations restricted by<br />
presence of organism<br />
Relatively short exposure time<br />
More involved (expensive)<br />
methodology<br />
More difficult to relate results<br />
to in situ organisms<br />
Only measures<br />
bioconcentration component<br />
Only a simplified model of an<br />
organism<br />
May be difficult to relate data<br />
to real world<br />
4-5 November 1992
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