The Response of Aquatic Insect Communities and Caged In situ Asiatic Clams (Corbicula fluminea) to Dechlorinated Municipal Effluent in the Trinity River in North Texas

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Description

Dischargers to the Trinity River in North Texas were required to dechlorinate their effluents in 1990-91. Field surveys were conducted above and below an outfall to determine the response of resident immature insects and caged in situ juvenile Asiatic clams to chlorinated and dechlorinated effluent. Within six months after dechlorination began, insect community composition and C. fluminea survival significantly improved at stations below the outfall. Significantly lower clam growth within one mile below the dechlorinated effluent indicated the presence of non-chlorine toxicants. Effects from chlorinated and dechlorinated effluent exposure were comparable between Ceriodaphnia dubia lab tests and in situ C. ... continued below

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xvi, 192 leaves : ill.

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Spon, Sandra T. (Sandra Teresa) December 1994.

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  • Spon, Sandra T. (Sandra Teresa)

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Dischargers to the Trinity River in North Texas were required to dechlorinate their effluents in 1990-91. Field surveys were conducted above and below an outfall to
determine the response of resident immature insects and caged in situ juvenile Asiatic clams to chlorinated and dechlorinated effluent. Within six months after
dechlorination began, insect community composition and C. fluminea survival significantly improved at stations below the outfall. Significantly lower clam growth within one mile below the dechlorinated effluent indicated the presence of non-chlorine toxicants. Effects from chlorinated and dechlorinated effluent exposure were comparable between Ceriodaphnia dubia lab tests and in situ C. fluminea.

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xvi, 192 leaves : ill.

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UNT Theses and Dissertations

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  • December 1994

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  • March 24, 2014, 8:07 p.m.

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  • June 27, 2014, 10:04 a.m.

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Citations, Rights, Re-Use

Spon, Sandra T. (Sandra Teresa). The Response of Aquatic Insect Communities and Caged In situ Asiatic Clams (Corbicula fluminea) to Dechlorinated Municipal Effluent in the Trinity River in North Texas, thesis, December 1994; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc278622/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .