Methods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program
Open-File Report
93-406
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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.
| 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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