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The Use Of Anuran Larvae To Determine Chronic And Acute Toxicological Effects From Exposure To Atrazine And Metolachlor , Linda Suzanne Gucciardo
Retrospective Theses and Dissertations
This research investigated the effects of chronic exposure of amphibian tadpoles and acute exposure of embryos to the agricultural chemical atrazine;Tadpoles were chronically exposed from the first feeding stage through metamorphosis to three levels of atrazine. Concentrations of 30, 300 and 600 mug/L reflect exposures likely to occur in streams, wetlands and temporary waters near croplands. Cricket frogs (Acris crepitans), wood frogs (Rana sylvatica) and northern leopard frogs (R. pipiens ) were evaluated on rate of growth, days to metamorphosis, metamorphic success, and juvenile weight and length. A repeated measures ANOVA evaluated the rate of growth (increase in SVL ...