Response of fish to different simulated rates of water temperature increase

Technical Report · Sat Aug 01 00:00:00 EDT 1992

DOI:https://doi.org/10.2172/10183535· OSTI ID:10183535

Wike, L D; Tuckfield, R C

We initiated this study to define the limits of effluent-temperature rate increases during reactor restart, which will help minimize fish kills. We constructed an apparatus for exposing fish to various temperature-increase regimens and conducted two experiments based on information from system tests and scoping runs. In the rate experiment, we acclimated the fish to 20{degree}C, and then raised the temperature to 40{degree}C at varying rates. Because scoping runs and literature suggested that acclimation temperature may affect temperature-related mortality, we conducted an acclimation experiment. We acclimated the fish to various temperatures, then raised the temperatures to 39--40{degree}C at a rate of 2{degree}C every 12 hours. Based on the analysis of the data, we recommend temperature-increase rates during reactor restart of 2.5{degree}C every nine hours if ambient water temperatures are over 20{degree}C. If water temperatures are at or below 20{degree}C, we recommend temperature-increase rates of 2.5{degree}C every 12 hours. No regulation of temperature is required after effluent temperatures reach 40{degree}C. We recommend further studies, including expanded testing with the simulation system and behavioral and bioenergetic investigations that may further refine acceptable rates of effluent-temperature increases.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 10183535
• Report Number(s): WSRC-RP-92-240; ON: DE93000487
• Resource Relation: Other Information: PBD: Aug 1992
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
22 GENERAL STUDIES OF NUCLEAR REACTORS
FISHES
MORTALITY
THERMAL EFFLUENTS
BIOLOGICAL EFFECTS
REACTORS
ENVIRONMENTAL IMPACTS
TEMPERATURE DEPENDENCE
BEHAVIOR
BIOLOGICAL ADAPTATION
NUCLEAR POWER PLANTS
560400
220503
OTHER ENVIRONMENTAL POLLUTANT EFFECTS
CHEMICAL AND THERMAL EFFLUENTS