Record Display for the EPA National Library CatalogRECORD NUMBER: 1 OF 2
|Main Title||Estuarine Ecosystems and High Temperatures.|
|Author||Copelan, B. J. ; Davi, H. Lee ;|
|CORP Author||North Carolina Water Resources Research Inst., Raleigh.|
|Report Number||UNC-WRRI-72-68; DI-14-31-0001-3233; OWRR-A-041-NC; 13636,; A-041-NC(1)|
|Stock Number||PB-211 808|
|Additional Subjects||( Estuaries ; Water pollution) ; ( Water pollution ; Ecology) ; ( Ecology ; Estuaries) ; Heat ; Nutrients ; Algae ; Primary biological productivity ; Biomass ; Seasonal variations ; Limnology ; Ammonia ; Photosynthesis ; Phytoplankton ; Benthos ; Nekton ; Zooplankton ; Oysters ; Clams ; Aquatic plants ; Crabs ; Sewage ; Thermal pollution ; Water pollution effects(Plants) ; Sewage treatment effluent ; Water pollution effects(Animals)|
Responses of estuarine community structure, respiration and production to added heat, sewage and their combination were investigated. Plastic pools containing transplanted ecosystems from South Creek Estuary, N. C. were used. Temperature replication was achieved. Thermal treatment increased nutrient regeneration rates, yielding slightly higher algal biomass; although, seasonal differences were more significant. Sewage addition substantially increased ammonia levels, particularly during the winter. Community metabolism responded positively to thermal treatment, but not to sewage treatment. Temperature had very little effect on phytoplankton composition during the spring. A flow-through experiment was conducted to test more realistic estuarine conditions. Results were substantially the same as obtained under quiescent conditions.