Record Display for the EPA National Library Catalog

RECORD NUMBER: 2 OF 4

OLS Field Name OLS Field Data
Main Title Ecologic Simulation for Aquatic Environments.
Author Che, Carl W. ; Orlo, Gerald T. ;
CORP Author Water Resources Engineers, Inc., Walnut Creek, Calif.
Year Published 1972
Report Number 1-0500; DI-14-31-0001-3358; OWRR-C-2044(3358); 07164,; C-2044(3358) (1)
Stock Number PB-218 828
Additional Subjects ( Ecology ; Mathematical models) ; ( Estuaries ; Computerized simulation) ; ( Lakes ; Computerized simulation) ; Stratification ; Lake Washington ; San Francisco Bay ; Water quality ; Aquatic biology ; Seasonal variations ; Limnology ; Water pollution ; Eutrophication
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-218 828 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 168p
Abstract
A mathematical model for computer simulation of aquatic ecosystems was developed and adapted to lake and estuarial systems. The model is capable of simulating the annual cycle of ecologic successions involving algae, bacteria, zooplankton, fish and benthic animals and the interdependent relationships between biota and abiotic substances carried in the natural aquatic system. It is water quality oriented, predicting the temporal and spatial distributions of temperature, dissolved oxygen, biochemical oxygen demand, pH, conservative constituents (e.g., salinity, TDS, etc.), toxicity, nitrogen (three forms), carbon dioxide, and phosphorus as well as the biomass of each trophic level in the system. The basic formulations in the model are based on kinetic principles and the law of Conservation of Mass. Algal growth kinetics are governed by a Michaelis-Menton relationship including light, temperature, carbon, nitrogen and phosphorus.