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USGS · 70190174

The effect of phorate on wetland macroinvertebrates

Charles D. Dieter·Lester D. Flake·Walter G. Duffy
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Abstract

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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Environmental ToxicologyArticle
90° N90° S · 180° W ← longitude → 180° E
Source-reported bounding extent: 43.8496° to 44.5453° latitude; -97.853° to -96.4534° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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BibTeXRIS

Charles D. Dieter, Lester D. Flake, Walter G. Duffy. 1996-03-01. The effect of phorate on wetland macroinvertebrates. https://doi.org/10.1002/etc.5620150313

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