| Main Title |
Multiple Equilibria in Modeling Open-Lake Algal Dynamics. |
| Author |
Sharma, P. ;
Dettmann., E. H. ;
|
| CORP Author |
Butler Univ., Indianapolis, IN. Holcomb Research Inst.;Environmental Research Lab., Narragansett, RI. |
| Publisher |
c1989 |
| Year Published |
1989 |
| Report Number |
EPA/600/J-89/181; |
| Stock Number |
PB90-140856 |
| Additional Subjects |
Algae ;
Mathematical models ;
Lakes ;
Limnology ;
Simulation ;
Biomass ;
Equilibrium ;
Reprints ;
Aquatic ecosystems ;
Applied mathematics ;
Branching(Mathematics)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-140856 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
16p |
| Abstract |
The study examines the apparent bifurcation phenomena and associated multiple stable states among several of the variables in an aquatic ecosystem. The study and the proposed catastrophe model should be viewed as limited to shallow aquatic ecosystems with no thermal stratification. At certain nutrient loading thresholds, algal dynamics in such lakes are found to undergo major changes over short periods of time. The study focuses on a theoretical model comprising 3 nonlinear, coupled ordinary differential equations with 11 parameters. The equations for the biomass components of the system take into consideration biological interactions, but make no assumptions for the conservation of mass. Thus, the model differs from well-established lake ecosystem simulation models. (Copyright (c) 1989 Pergamon Press plc.) |
| Supplementary Notes |
Pub. in Mathl. Comput. Modelling, v12 n2 p227-240 1989. Sponsored by Environmental Research Lab., Narragansett, RI. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Multiple Equilibria in Modeling Open-Lake Algal Dynamics. |
| Category Codes |
57H; 57C; 48G |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/05 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
005320413 |
| Origin |
NTIS |
| Type |
CAT |
