Record Display for the EPA National Library Catalog

RECORD NUMBER: 9 OF 9

OLS Field Name OLS Field Data
Main Title Use of Periphyton in the Development of Biocriteria.
Author Rosen, B. H. ;
CORP Author ManTech Environmental Technology, Inc., Corvallis, OR. Environmental Research Lab.;Corvallis Environmental Research Lab., OR.
Publisher 1994
Year Published 1994
Report Number EPA-68-C8-0006; EPA/600/A-94/017;
Stock Number PB94-141512
Additional Subjects Periphyton ; Algae ; Indicator species ; Streams ; Water pollution ; Clean Water Act ; Food chains ; Aquatic biology ; Ecology ; Growth ; Diatoms ; Analysis of variance ; Point sources ; Nitrogen ; Phosphorus ; Nonpoint sources ; Montana ; Oklahoma ; Biocriteria
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB94-141512 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 05/14/1994
Collation 21p
Abstract
Periphyton are very useful in developing biocriteria for streams. The metrics currently used by States for periphyton are well developed and are used to determine if a stream is supporting aquatic life use as designated under the Clean Water Act. Because periphyton are the major primary producers in most stream systems and are often the base of the food web, they are important indicators of biological integrity. Periphyton have been used for over 50 years for monitoring streams and rivers and several reports are available that describe the ecological characteristics of the taxa in these assemblages. In addition, there are several databases that describe the known ranges of taxa along chemical, physical, and pollution gradients. Analysis of variance components and historical assessments of stream and river quality are possible with the many samples that have been collected and archived in museums during the last 90 years.