Effects of thermal discharge on aquatic insects in the Tennessee Valley
Technical Report
·
OSTI ID:5655514
The Tennessee Valley Authority (TVA) conducted studies to (1) determine the thermal tolerances of selected aquatic insects and (2) investigate growth and emergence of those insects in the vicinity of TVA electric generating plants. Results of the study will be used to help establish thermal effluent limits to protect the aquatic ecosystem. Tolerance of the immature stages of Hexagenia bilineata and Coelotanypus sp. to thermal shocks of up to 20C was found to be great. However, eggs subjected to a shock of 15C resulted in a greatly reduced mean percentage of hatching. No difference in fecundity of adult females was found between ambient and thermal plume stations. Adult males from the heated discharge channel were significantly larger on the average than adult males from the ambient station.
- Research Organization:
- Tennessee Valley Authority, Muscle Shoals, AL (USA). Div. of Environmental Planning
- OSTI ID:
- 5655514
- Report Number(s):
- PB-295415
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560204* -- Thermal Effects-- Invertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMAL GROWTH
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
BIOLOGICAL ADAPTATION
BIOLOGICAL STRESS
COOLING SYSTEMS
EGGS
ENERGY
FOSSIL-FUEL POWER PLANTS
GROWTH
HEAT
INSECTS
INVERTEBRATES
LIFE SPAN
MORTALITY
NORTH AMERICA
POLLUTION
POWER PLANTS
REPRODUCTION
SOUTHEAST REGION
TENNESSEE
THERMAL EFFLUENTS
THERMAL POLLUTION
THERMAL POWER PLANTS
USA
WATER POLLUTION
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMAL GROWTH
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
BIOLOGICAL ADAPTATION
BIOLOGICAL STRESS
COOLING SYSTEMS
EGGS
ENERGY
FOSSIL-FUEL POWER PLANTS
GROWTH
HEAT
INSECTS
INVERTEBRATES
LIFE SPAN
MORTALITY
NORTH AMERICA
POLLUTION
POWER PLANTS
REPRODUCTION
SOUTHEAST REGION
TENNESSEE
THERMAL EFFLUENTS
THERMAL POLLUTION
THERMAL POWER PLANTS
USA
WATER POLLUTION