Distribution and abundance of submerged aquatic macrophytes in a reactor cooling reservoir
Measurements of ash-free dry weight were used to characterize the effects of a heated effluent on submerged macrophytes in a reactor cooling reservoir. The species which were most abundant during the summers of 1974 and 1975 were Myriophyllum spicatum L. and Eleocharis acicularis (L.) R. and S. Examination of the vertical distribution of the shoot biomass of Myriophyllum revealed that plants in heated areas grew closer to the water surface than plants in unheated areas. The biomass of the second most abundant species, Eleocharis acicularis, was less at 0.5 m depths in heated areas (more than 5C/sup 0/ warmer than unheated areas) than at equal depths in unheated areas. Species diversity was greater at heated locations because of a greater equitability (i.e., evenness of distribution of biomass) among species.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, S.C. (USA). Savannah River Lab.
- DOE Contract Number:
- EY-76-C-09-0001
- OSTI ID:
- 5263174
- Report Number(s):
- DP-MS-77-99
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560203* -- Thermal Effects-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AQUATIC ECOSYSTEMS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
BIOLOGICAL STRESS
BIOLOGICAL VARIABILITY
BIOMASS
COOLING PONDS
COOLING SYSTEMS
ECOSYSTEMS
ENERGY SOURCES
ENVIRONMENTAL IMPACTS
GENETIC VARIABILITY
INFORMATION
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
PLANKTON
PLANTS
POLLUTION
PONDS
POPULATION DENSITY
POPULATION DYNAMICS
POWER PLANTS
RENEWABLE ENERGY SOURCES
SURFACE WATERS
TABLES
TEMPERATURE EFFECTS
THERMAL EFFLUENTS
THERMAL POLLUTION
THERMAL POWER PLANTS
WATER POLLUTION
WATER RESERVOIRS
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AQUATIC ECOSYSTEMS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
BIOLOGICAL STRESS
BIOLOGICAL VARIABILITY
BIOMASS
COOLING PONDS
COOLING SYSTEMS
ECOSYSTEMS
ENERGY SOURCES
ENVIRONMENTAL IMPACTS
GENETIC VARIABILITY
INFORMATION
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
PLANKTON
PLANTS
POLLUTION
PONDS
POPULATION DENSITY
POPULATION DYNAMICS
POWER PLANTS
RENEWABLE ENERGY SOURCES
SURFACE WATERS
TABLES
TEMPERATURE EFFECTS
THERMAL EFFLUENTS
THERMAL POLLUTION
THERMAL POWER PLANTS
WATER POLLUTION
WATER RESERVOIRS