Avoidance responses of estuarine fish exposed to heated-dechlorinated power plant effluents. [Morone saxatilis; Brevoortia tyrannus]
Avoidance responses of striped bass (Morone saxatilis) and Atlantic menhaden (Brevoortia tyrannus) exposed to simultaneous dechlorinated waters (using SO/sub 2/ to dechlorinate total residual chlorine (TRC) concentrations of 0.00, 0.05, 0.10, and 0.15 mg/L TRC) and elevated temperatures (0, 2, 4 and 6 /sup 0/C) were evaluated at acclimation temperatures of 15, 20, 25, and 30/sup 0/C. Both species showed minimal avoidance to dechlorinated estuarine water (no ..delta..T) at all acclimation temperatures. Elevated temperature (..delta..T) or a combination of ..delta..T and dechlorination were the most important factors influencing avoidance of the test species. Acclimation temperature was an important factor influencing the avoidance behavior of both species exposed to heated-dechlorinated power plant conditions. Greatest avoidance of all test conditions generally occurred at an acclimation temperature of 30/sup 0/C. Both species avoided 34/sup 0/C when acclimated to 30/sup 0/C regardless of the dechlorinated condition.
- Research Organization:
- Johns Hopkins Univ., Shady Side, MD
- OSTI ID:
- 6448431
- Journal Information:
- Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 18:7; ISSN ESTHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560305 -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
AVOIDANCE
BEHAVIOR
BIOLOGICAL ADAPTATION
BIOLOGICAL EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
DECHLORINATION
DEHALOGENATION
ESTUARIES
FISHES
OXIDES
OXYGEN COMPOUNDS
POWER PLANTS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SURFACE WATERS
TEMPERATURE EFFECTS
THERMAL EFFLUENTS
VERTEBRATES