Abstract
Abstract Cadmium (Cd) is an ubiquitous environmental pollutant of increasing worldwide concern. It has become one of the most hazardous heavy metals in aquatic environments and could threaten aquatic organisms, including marine shrimp. Shrimp are sensitive to Cd and have been found to accumulate it in their bodies in proportion to environmental concentrations. The effects of Cd on the biology and gene expression of the commercially important Litopenaeus vannamei are unknown. The overall hypothesis is that Cd exerts effects on shrimp at both biological and molecular levels. These changes may provide a way to identify genes responsible for toxicity, detoxification and/or tolerance to Cd exposure both acute and chronic. To test the hypothesis, a small-scale pilot project was initiated to obtain baseline information on histological changes associated with Cd treatment and to develop the genomics tools needed to identify genes associated with Cd exposure. The specific objectives of this study were to (1) obser...
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