Full Record Display for the EPA National Library Catalog
RECORD NUMBER: 803 OF 2881Main Title | Ecoregional Biological Criteria. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Author | Hughes, R. M. ; | |||||||||||
CORP Author | NSI Technology Services Corp., Corvallis, OR.;Corvallis Environmental Research Lab., OR. | |||||||||||
Publisher | 1989 | |||||||||||
Year Published | 1989 | |||||||||||
Report Number | EPA-68-C8-0006; EPA/600/D-89/167; | |||||||||||
Stock Number | PB90-116609 | |||||||||||
Additional Subjects | Aquatic biology ; Environmental monitoring ; Criteria ; Measurement ; Numerical analysis ; Assessments ; Toxicology ; Aquatic animals ; Regions ; Aquatic ecosystems ; Water pollution effects(Animals) ; Oil spills | |||||||||||
Holdings |
|
|||||||||||
Collation | 8p | |||||||||||
Abstract | For the purposes of the paper, biocriteria are defined as numerical values that describe the biological health of aquatic communities for a designated aquatic life use. Regardless of whether they are implemented regionally or site specifically, biocriteria (ambient, community-based) have the following advantages compared to chemical and toxicological criteria: biocriteria facilitate direct assessment of designated aquatic life uses, are applicable to a wide range of stressors (physical, chemical, biological, point, nonpoint, toxic, nontoxic), and provide a firm basis for regulating nonchemical degradation and antidegradation. They offer a mechanism for evaluating long-term effects of spills, process changes, and illegal dumping; for assessing cumulative effects of multiple dischargers and stressors; and for estimating bioaccumulation and indirect effects (food chain, competition, predation, migration, life history). | |||||||||||
Supplementary Notes | Proceedings of an EPA conference, Water Quality Standards for the 21st Century, p147-151 Mar 89. Sponsored by Corvallis Environmental Research Lab., OR. | |||||||||||
Category Codes | 47D; 57H | |||||||||||
NTIS Prices | PC A02/MF A01 | |||||||||||
Primary Description | 600/02 | |||||||||||
Document Type | NT | |||||||||||
Cataloging Source | NTIS/MT | |||||||||||
Control Number | 935222615 | |||||||||||
Origin | NTIS | |||||||||||
Type | CAT |