Chapter A4 contains methods used by the U.S. Geological
Survey to collect, preserve, and analyze waters to determine their
biological and microbiological properties. Part 1 discusses
biological sampling and sampling statistics. The statistical
procedures are accompanied by examples. Part 2 consists of
detailed descriptions of more than 45 individual methods,
including those for bacteria, phytoplankton, zooplankton,
seston, periphyton, macrophytes, benthic invertebrates, fish and
other vertebrates, cellular contents, productivity, and bioassays.
Each method is summarized, and the application, interferences,
apparatus, reagents, collection, analysis, calculations, reporting
of results, precision and references are given. Part 3 consists of a
glossary. Part 4 is a list of taxonomic references.
Additional publication details
USGS Numbered Series
Methods for collection and analysis of aquatic biological and microbiological samples