Record Display for the EPA National Library Catalog


Main Title Plankton community and hydraulic characterization preliminary to lake flushing /
Author Welc, Eugene B. ; Buchana, Ronald J. ; Nec, Ronald E. ; Boga, Richard H.
Other Authors
Author Title of a Work
Welch, E. B.
CORP Author Washington Univ., Seattle. Dept. of Civil Engineering.
Publisher College of Engineering, Dept. of Civil Engineering, Water and Air Resources Division, University of Washington,
Year Published 1969
Report Number 08166,; 16010-10/69
Stock Number PB-192 760
OCLC Number 54507292
Subjects Freshwater phytoplankton--Washington (State) ; Eutrophication--Washington (State)--Moses Lake ; Algae--Control ; Water--Purification
Additional Subjects ( Water pollution ; Lakes) ; ( Lakes ; Plankton) ; Nutrition ; Control ; Distribution ; Hydraulic models ; Mathematical models ; Algae ; Eutrophication ; Water treatment ; Moses Lake ; Flushing
Library Call Number Additional Info Location Last
EMBD  PB-192760 NRMRL/GWERD Library/Ada,OK 04/30/2004
NTIS  PB-192 760 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 181 leaves : illustrations
The effect was evaluated of adding varying amounts of low-nutrient flushing water to one area of Moses Lake, a 6,500-acre highly eutrophic lake in eastern Washington. Cluster analysis of plankton data identified 6 sample groups and species groups. Temporal and spatial variations in community types and standing crops appear to be related to detention time, nitrate content, and available light. The effect of low-nutrient dilution water on lake plankton growth response indicated growth at 90% and 86% lake water. Dye studies, diurnal plankton sampling, and field observations indicate that southerly winds have a great effect on moving algae upstream into upper Parker Horn. Water movements in the lake could be simulated in a distorted Froude law hydraulic model. Removal of algae and nutrients by flushing procedures in Parker Horn and the lower lake would likely be more effective at night. Moses Lake behaves both biologically and hydraulically as though it were divided into several partially isolated regions. A tentative mathematical model has been set up for simulating the productivity and distribution of algae. Flushing Parker Horn with large slugs of low nutrient water may not be effective because of wind action transporting algae and their entrained nutrients back into the Horn together with nutrient regeneration from sediments. (WRSIC-abstract)
Includes bibliographical references (leaves 109, leaf 179-181). Microfiche.