Methods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program

Open-File Report 93-406
By: , and 

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Abstract

Benthic invertebrate communities are evaluated as part of the ecological survey component of the U.S. Geological Survey's National Water-Quality Assessment Program. These biological data are collected along with physical and chemical data to assess water-quality conditions and to develop an understanding of the factors that affect water-quality conditions locally, regionally, and nationally. The objectives of benthic invertebrate community characterizations are to (1) develop for each site a list of tax a within the associated stream reach and (2) determine the structure of benthic invertebrate communities within selected habitats of that reach. A nationally consistent approach is used to achieve these objectives. This approach provides guidance on site, reach, and habitat selection and methods and equipment for qualitative multihabitat sampling and semi-quantitative single habitat sampling. Appropriate quality-assurance and quality-control guidelines are used to maximize the ability to analyze data within and among study units.

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Methods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program
Series title Open-File Report
Series number 93-406
DOI 10.3133/ofr93406
Edition -
Year Published 1993
Language ENGLISH
Publisher U.S. Geological Survey ; U.S.G.S. Earth Science Information Center, Open-File Reports Section [distributor],
Description v, 66 p. :ill. ;28 cm.
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