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Methods for collecting benthic invertebrates
Maintenance of sampling equipment
4 other sections not shown
16-character appropriate aquatic Baetis basic fixed benthic invertebrate samples biological BQAU Chironomidae composite sample contract laboratory contractor Corynoneura Cricotopus Cuffney D-frame data sheet fig ecological elutriate Eukiefferiella evaluated example Family/Genus field data sheet field processing field sample formalin Genus guidelines Gurtz Hydropsyche identification and quantification instream habitat types invertebrate identification invertebrate sample processing Laboratory subsample large-rare sample component Macrophyte Macrophyte bed main-body sample component Meador mesh National Water-Quality Assessment number of organisms number of taxa Oligochaeta Orthocladius percent procedures QA/QC checks QA/QC criteria QA/QC sample block qualitative samples quality-assurance and quality-control quantification data sheet riffle River Basin sample container sample fraction sample identification code sample label sample remnants sampler samples collected sampling reach sediment semi-quantitative samples sieve species study unit study-unit reference collection subsampling taxon taxonomic Thienemanniella total number Trichoptera Turbellaria tv Ci sS U.S. Geological Survey USGS water quality Water-Quality Assessment Program XYZ Labs Yakima River