| |
| | Gulf Ecology Division |
 | | Measures of bivalve mollusk defense activities, such as hemocyte density, phagocytic activity, locomotion and production of cytotoxic molecules, and hemolymph constituents, such as agglutinins and lysozyme, have potential as indicators and appear to be responsive to xenobiotic chemical insults in the aquatic environment. |
 | | In addition, variation in defense activities caused by seasonal temperature and reproductive cycling, salinity changes, nutritional status, diseases and parasites, and genetic stocks is high and may limit applicability of bivalve defense-related measurements as indicators. |
 | | Potential associations between oyster defense characteristics and accumulated chemical contaminants, either singly or in chemical classes, were explored using correlation analysis and a composited ranking procedure. |
| www.epa.gov /gbwebdev/ged/publica/cabanc41.htm (2405 words) |
|