Record Display for the EPA National Library Catalog

RECORD NUMBER: 400 OF 636

OLS Field Name OLS Field Data
Main Title Microdistribution of Stream Benthos.
Author Cummin, Kenneth W. ;
CORP Author Pittsburgh Univ., Pa. Dept. of Biology.
Year Published 1968
Report Number FWPCA-WP-00525;
Stock Number PB-217 972
Additional Subjects ( Streams ; Ecology) ; ( Aquatic biology ; Streams) ; Benthos ; Food chains ; Photosynthesis ; Growth ; Respiration ; Biochemical oxygen demand ; Aquatic plants ; Aquatic animals ; Stability ; Pennsylvania ; Linesville Creek
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-217 972 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 44p
Abstract
The paper deals with a portion of a long term study aimed at determining an energy budget for a lotic ecosystem, at the greatest level of detail feasible and employing the maximum possible amount of original data. The broad plan of investigation was conceived to consist of the following components: Determine community composition, standing crop fluctuations and an ingestion food web for the riffle portion of a natural stream ecosystem; Determine production (growth and reproduction) and the assignment of maintenance costs (respiration) at the level of populations; Determine intra- (photosynthesis by periphytic algae) and inter-community (terrestrial and upstream contributions) supply of organic matter, as well as the loss (downstream) from the community; Establish a stable, semi-natural lotic system; Conduct manipulative experiments relative to the relationship between community stability and energy flow.