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Description: |
8 pages : illustrations, tables ; 26 cm. |
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General Note: |
Funded by the U.S. Fish and Wildlife Service. |
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With Note: |
With: Efficacy of 3-trifluoromethyl-4-nitrophenol (TFM), 2',5-dichloro-4'-nitrosalicylanilide (Bayer 73), and a 98:2 mixture as lampricides in laboratory studies / by Verdel K. Dawson, Kenneth B. Cumming, and Philip A. Gilderhus (NO. 77) -- Toxicity of the molluscicide Bayer 73 and residue dynamics of Bayer 2353 in aquatic vertebrates / by Herman O. Sanders (No. 78). |
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Bibliography Note: |
Includes bibliographical references (page 8). |
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Summary, Etc. Note: |
Abstract: When exposed to sublethal concentrations of Bayer 2353 (C14-labeled 2',5-dichloro-4'-nitrosalicylanilide), either alone or in combination with 3-trifluoromethyl-4-nitrophenol (TFM), larvae of the midge Chironomus tentans accumulated C-14 residue rapidly. Uptake was related directly to amount of toxicant present in exposure water and to water hardness. Residues of C-14-Bayer 2353 did not attain a stable uptake equilibrium but were rapidly excreted, both during continuous exposure and during postexposure periods in toxicant free water. Chironomids biotransformed C14-Bayer 2353 to C14-Chlorosalicylic acide and an unidentified C14 metabolite. |