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Main Title What can biological monitoring tell us about the environmental health of aquatic ecosystems /
Author Hughes, Robert M.
Other Authors
Author Title of a Work
Hughes, Robert M.
CORP Author NSI Technology Services Corp., Corvallis, OR.;Corvallis Environmental Research Lab., OR.
Publisher U.S. Environmental Protection Agency, Environmental Research Laboratory,
Year Published 1989
Report Number EPA/600/D-89/113; ERL-COR-1052D; EPA-68-C8-0006
Stock Number PB90-113127
Subjects Stream ecology--Congresses ; Indicators (Biology)--Congresses
Additional Subjects Toxicology ; Site surveys ; Water quality ; Aquatic ecosystems ; Environmental quality ; Biological indicators
Library Call Number Additional Info Location Last
NTIS  PB90-113127 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 21 pages ; 28 cm
Biological monitoring offers a proven, cost-effective way to evaluate the health of aquatic ecosystems. Macroinvertebrates have been sampled for many years, but only recently have rigorous multimetric indices been suggested for them. These indices have not yet been tested as widely as the IBI. Quantitative biological data from relatively undisturbed reference sites typical of aquatic ecoregions provide benchmark information, hence these sites serve as 'controls' in 'experiments' with anthropogenic perturbations. The information can be used to evaluate data for a particular site of interest or, if a representative sample is drawn, for entire ecoregions. The paper focuses on biological monitoring because of the current emphasis on chemical monitoring; it is not meant to suggest that chemical, physical habitat, and toxicological monitoring are valueless. Rather, quantitative criteria developed from all four types of monitoring are necessary tools for improved water resource regulation and management.
"Contract no 68-C8-0006." Includes bibliographical references. "EPA/600/D-89/113"--Cover. Microfiche.