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dc.contributor.authorPetrocelli SR; Anderson JW; Hanks ARen_US
dc.contributor.editoren_US
dc.contributor.otherTexas Journal of Science Vol 26, No 3-4, p 443-448, 1975en_US
dc.date.accessioned2010-02-15T17:15:36Z
dc.date.available2010-02-15T17:15:36Z
dc.date.issued443en_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23233
dc.descriptionNo-4en_US
dc.description.abstractThe marsh clam, Rangia cuneata, was collected in Trinity Bay, Texas, in 1970 and 1971 and analyzed for residues of the chlorinated hydrocarbon insecticide, dieldrin, by gas-liquid chromatography. Analysis was carried out on ten individual clams randomly selected, shucked, and frozen. Recoveries of dieldrin from fortified clam tissue samples were above 85%. Clams collected in October and December 1970 had lower residues of dieldrin (mean and standard deviations were 7.9 plus or minus 1.5 ppb and 6.8 plus or minus 1.1 ppb, respectively) than those for February, April, and July (mean and standard deviations were 16.4 plus or minus 2.8 ppb, 16.6 plus or minus 1.4 ppb and 14.8 plus or minus 1.8 ppb respectively), or at least twice the fall values. These seasonal fluctuations in insecticide residues in tissue may be due to changes in river flow into the bay, with maximum tissue levels in months of large freshwater input. Also maturation of gonads and production of gametes in the spring and summer may cause higher whole body insecticide residue levels during these periods. (Buchanan-Davidson--Wisconsin)en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.publisheren_US
dc.relation.ispartofseries50815.00en_US
dc.relation.urien_US
dc.subjectBAY;Bioindicators;Clams;Commercial shellfish;Dieldrin;Estuaries;FLOW;Fluctuations;FRESHWATER;Path of pollutants;Pesticide residues;Seasonal;SW 0890 Estuaries;SW 3020 Sources and fate of pollution;SW 3030 Effects of pollution;Texas;Water pollution effects;en_US
dc.titleSeasonal Fluctuations of Dieldrin Residues in the Tissues of the Marsh Clam, Rangia Cuneata, from a Texas Estuaryen_US
dc.typeJournalen_US
dc.placeen_US
dc.seriesen_US
dc.vol-issue()en_US
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dc.locationen_US
dc.scaleen_US
dc.latitudeen_US
dc.longitudeen_US
dc.contract-noen_US
dc.notesen_US
dc.degreeen_US
dc.acquisition-srcDownloaded from-Water Resources Abstractsen_US
dc.description-otheren_US
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