The effect of phorate on wetland macroinvertebrates

Environmental Toxicology
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The effects of phorate, an organophosphorus insecticide, on aquatic macroinvertebrates was studied in littoral mesocosms in South Dakota wetlands. In 1991 and 1992, four mesocosms were constructed in each of three wetlands. In each wetland, one mesocosm was a reference and phorate concentrations of 1.2, 2.4, and 4.8 kg/ha were applied to treatment mesocosms. Phorate caused mortality to amphipods and chironomids throughout the study. Leeches and snails were resistant to phorate. Few living macroinvertebrates were present in mesocosms after phorate treatment and populations recovered only slightly after 1 month. Macroinvertebrate taxa that were sensitive to phorate included: Odonata, Hemiptera, Culicidae, Heliidae, Ephemeroptera, Acarina, Coleoptera, Stratio-myidae, and Hydracarina. Taxa that were tolerant to phorate included: Hirudinea, Gastropoda, Oligochaeta, and Ostracoda.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title The effect of phorate on wetland macroinvertebrates
Series title Environmental Toxicology
DOI 10.1002/etc.5620150313
Volume 15
Issue 3
Year Published 1996
Language English
Publisher Society of Environmental Toxicology and Chemistry
Description 5 p.
First page 308
Last page 312
Country United States
State South Dakota
County Brookings County, Lake County, Kingsbury County
Other Geospatial Prairie Coteau
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