Record Display for the EPA National Library Catalog


Main Title Modeling dynamics of biological and chemical components of aquatic ecosystems /
Author Lassiter, Ray R.,
CORP Author Environmental Protection Agency, Athens, Ga. Southeast Environmental Research Lab.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, National Environmental Research Center,
Year Published 1975
Report Number SUS 124; EPA-660-3-75-012; EPA-ROAP-03ACQ-09
Stock Number PB-241 987
OCLC Number 01570899
Subjects Aquatic ecology--Mathematical models ; Aquatic biology--Mathematical models ; Water chemistry--Mathematical models
Additional Subjects Aquatic biology ; Plankton ; Ecology ; Mathematical models ; Photosynthesis ; Nitrogen cycle ; Phytoplankton ; Zooplankton ; Algae ; Limnology ; Temperature ; Decomposition ; Growth ; Bacteria ; Assimilation ; Chemical equilibrium ; Diagrams ; Ecosystems
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 660-3-75-012 Headquarters Library/Washington,DC 12/23/2016
EKCD  EPA 660/3-75-012 CEMM/GEMMD Library/Gulf Breeze,FL 11/27/2018
ELBD ARCHIVE EPA 660-3-75-012 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 660-3-75-012 Region 10 Library/Seattle,WA 07/18/2003
NTIS  PB-241 987 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation v, 54 pages : illustrations, figures ; 2 cm
To provide capability to model aquatic ecosystems or their sub-systems as needed for particular research goals, a modeling strategy was developed. Submodels of several processes common to aquatic ecosystems were developed or adapted from previously existing ones. Included are submodels for photosynthesis as a function of light and depth, biological growth rates as a function of temperature, dynamic chemical equilibrium, feeding and growth and various types of losses to biological populations. These submodels may be used as modules in the construction of models of subsystems or ecosystems. A preliminary model for the nitrogen cycle subsystem was developed using the modeling strategy and applicable submodels.
"May 1975." Includes bibliographical references (pages 50-54). "ROAP 03ACQ, Task 09, Program Element 1BA023."