Threadfin shad impingement: effect of cold stress. Report to the Nuclear Regulatory Commission for period October 1, 1976-September 30, 1978

Technical Report · Thu May 01 04:00:00 EDT 1980

DOI:https://doi.org/10.2172/5227586· OSTI ID:5227586

McLean, R B; Singley, P T; Griffith, J S; McGee, M V

Temperature greatly influenced impingement of threadfin shad, young-of-the-year gizzard shad, and probably young-of-the-year river herring. Temperature also greatly influenced any potential effects that loss of these prey had on predators. Natural cold kills of threadfin and young-of-the-year gizzard shad masked any ecological effects due to impingement. Most of the shad, had they not been impinged, would have died due to cold stress, and these dead shad would have decomposed rather than been eaten by scavengers. Loss of shad had a measurable short-term effect on sauger, as determined by changes in condition factor, and this loss of shad contributed to an increase in percent empty stomachs of skipjack herring, striped bass, and white bass. Thermal refuges, including the Kingston Steam Plant discharge, were identified for gizzard shad and hybrid shad. Hybrid shad made up 11.2% of the total threadfin population sampled both years (1976-1977 and 1977-1978). Blood serum electrolytes (Na/sup +/, K/sup +/, Cl/sup -/) were not found to be good predictable indicators of cold stress of young gizzard shad. 24 refs., 23 figs., 18 tabs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5227586
• Report Number(s): NUREG/CR-1044; ORNL/NUREG/TM-340; ON: TI86000153
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200200 -- Fossil-Fueled Power Plants-- Waste Management
560205* -- Thermal Effects-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
BLOOD CHEMISTRY
DATA
ENVIRONMENTAL IMPACTS
EXPERIMENTAL DATA
FISHES
FOSSIL-FUEL POWER PLANTS
IMPINGEMENT
INFORMATION
KINGSTON STEAM PLANT
NUMERICAL DATA
POPULATION DYNAMICS
POWER PLANTS
PREDATOR-PREY INTERACTIONS
SEASONAL VARIATIONS
THERMAL EFFLUENTS
THERMAL POWER PLANTS
VARIATIONS
VERTEBRATES