Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Thermal Effects on Biological Production in a Pond.
Author Siewer, Horst F. ;
CORP Author Wisconsin Univ., Madison. Water Resources Center.
Year Published 1973
Report Number DI-14-01-0001-1870 ;DI-14-31-0001-3050; OWRR-A-020-WIS ;OWRR-A-032-WIS; 04861,; A-032-WIS(2)
Stock Number PB-228 659
Additional Subjects Water pollution ; Ponds ; Thermal environments ; Biological productivity ; Fishes ; Chemical properties ; Temperature measurement ; Water chemistry ; Oxygen ; Nutrition ; Alkalinity ; Conductivity ; Food supply ; Hydrogen sulfide ; Wisconsin ; Theses ; Environmental effects ; Thermal pollution ; Lepomis cyanellus ; Chara
Library Call Number Additional Info Location Last
NTIS  PB-228 659 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 186p
Physical, chemical, and biological differences between two similar ponds were studied. One pond was heated to 5C above ambient temperature, while the other served as a reference. Two hundred and fifty green sunfish, Lepomis cyanellus, were planted in each pond. The young-of-the-year grew at a higher rate in the heated pond and permitted Chara to grow year round at an accelerated rate. The heated pond produced more oxygen during the day and lost more oxygen during the night than did the reference pond. There was an indication that the synergistic effect of temperature and oxygen with an unlimited food supply will promote fish growth.