Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Mathematical modeling of phytoplankton in Lake Ontario. /
Author Thomann, Robert V. ; Winfield, Richard P. ; Di Toro, Dominic M. ; O'Connor., Donald J. ;
Other Authors
Author Title of a Work
Thomann, Robert V.
CORP Author Manhattan Coll., Bronx, N.Y. Environmental Engineering and Science Program.;Environmental Research Lab.-Duluth, Grosse Ile, Mich. Large Lakes Research Station.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1976
Report Number EPA-600/3-76-065; EPA-R-800610
Stock Number PB-258 189
OCLC Number 02604994
ISBN pbk.
Subjects Phytoplankton--Ontario, Lake (N.Y. and Ont.)--Mathematical models. ; Phytoplankton--Mathematical models. ; Lake Ontario. ; Phytoplankton--Ontario, Lake--Mathematical models
Additional Subjects Phytoplankton ; Water pollution ; Lake Ontario ; Nutrients ; Biomass ; Mathematical models ; Chlorophylls ; Nitrogen ; Phosphorus ; Limnology ; Water quality ; Estimates ; Tables(Data) ; Graphs(Charts) ; Eutrophication ; Organic loadings ; Lake 1 model
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-3-76-065 Headquarters Library/Washington,DC 01/11/2011
EJBD  EPA 600-3-76-065 c.1 Headquarters Library/Washington,DC 03/14/2014
ELAD  EPA 600-3-76-065 Region 5 Library/Chicago,IL 05/16/2016
ELBD  EPA 600-3-76-065 AWBERC Library/Cincinnati,OH 01/07/2013
ELDD  EPA-600/3-76-065 CCTE/GLTED Library/Duluth,MN 03/08/1991
ESAD  EPA 600-3-76-065 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-258 189 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation ix, 87 pages : illustrations ; 28 cm.
The results of a series of simulations of the response of the open lake region of Lake Ontario to various levels of nutrient input are described. The simulations use a simplified dynamic model of phytoplankton - nutrient interactions in a vertically segmented structure. The analysis of long term simulations (10-20 years) indicates that the overall loss rates of nutrient are of particular importance. Under reasonable set of model parameters, the simulations indicate that the present observed open lake phytoplankton biomass of Lake Ontario does not appear to be in equilibrium with the present input nutrient load. Therefore, if the present load is continued, it is estimated that spring peak phytoplankton chlorophyll in the epilimnion will continue to increase to a new level about 45% higher than present levels.
Prepared by Manhattan College, Bronx, N.Y., under grant R-800610. "Program element 1BA026"--V.1. "ROAP/Task No. 21AKP/15"--V.1. "March 1975"--V.1. "August 1976"--V.2. Includes bibliographical references (pages 85-86). Item 431-I-11.
Contents Notes
pt. 1. Model development and verification -- pt. 2. Simulation using Lake 1 model.