||Risks of Toxic Contaminants to Exploited Fish Populations: Influence of Life History, Data Uncertainty and Exploitation Intensity.
Barnthouse, L. W. ;
Suter, G. W. ;
Rosen., A. E. ;
||Oak Ridge National Lab., TN. Environmental Sciences Div. ;Martin Marietta Energy Systems, Inc., Oak Ridge, TN.;Department of Energy, Washington, DC.;Environmental Research Lab., Gulf Breeze, FL.
||ORNL/PUB-3336; DE-AC05-84OR21400; EPA/600/J-90/513;
Toxic substances ;
Water pollution effects(Animals) ;
Marine fishes ;
Risk assessment ;
Life cycles ;
Dose-response relationships ;
Quantitative structure-activity relationship(QSAR) ;
Brevoortia patronus ;
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Use of toxicity test data for population-level risk assessment was investigated as follows: (1) the influence of life history characteristics of menhaden and striped bass on vulnerability of contaminant-induced stress; (2) the importance of test data availability; and (3) the influence of exploitation intensity. Menhaden and striped bass differed in terms of their capacity to sustain the same level of contaminant-induced mortality. Changes in exploitation intensity affect the responses of both populations to the same level of additional contaminant-induced mortality. However, the quantitative effects of both factors were small compared to the uncertainty associated with estimating long-term effects from short-term tests or QSARs.