Fish behavior, migration and environmental assessment

Conference · Mon Feb 01 04:00:00 EST 1988

OSTI ID:5323472

Gray, R H

Studies at the Pacific Northwst Laboratory have evaluated fish behavior and migration in response to thermal discharge, gas supersaturated water, water-soluble fractions of coal liquids, and other environmental stresses. Major findings including thermal discharges did not block upstream migration of sonic-tagged adult chinook salmon (Oncorhynchus tschawytscha) and a rainbow trout (Salmo gairdneri) in the Columbia River. Juvenile chinook slamon avoided thermal discharges in the laboratory when ..delta..ts exceeded 9 to 11)degree)C above ambient. However juvenile salmon were more susceptible to predation at 10 to 20% of the thermal dose causing loss of equilibrium. Radio-tagged adult chinook salmon swam deeper in supersaturated water than in normally saturated water in the Snake River and, thereby, avoided the upper, critical zone. Carp (Cyprinus carpio) and black bullhead (Ictalurus melas) did not always avoid lethal gas levels in the laboratory and some fish died in the test apparatus. Fathead minnow (Pimephales promelas) avoided the water soluble fraction (WSF) of a coal liquid at concentrations causing acute effects but not at those causing chronic effects. Rainbow trout did not avoid coal liquid WSFs although they reportedly avid the major constituent, phenol, tested a as pure compound. Susceptibility to predation of juvenile rainbow trout did not increase until phenol concentrations reached the acute LC/sub 50/. 67 refs., 11 figs., 1 tab.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5323472
• Report Number(s): PNL-SA-15699; CONF-871146-1; ON: DE88008185
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
130600* -- Hydro Energy-- Environmental Aspects
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANADROMOUS FISHES
ANIMALS
AQUATIC ORGANISMS
AROMATICS
BEHAVIOR
BIOLOGICAL EFFECTS
COAL LIQUIDS
ENVIRONMENTAL QUALITY
FEDERAL REGION X
FISHES
FLUIDS
HYDROXY COMPOUNDS
LIQUIDS
MIGRATION
NORTH AMERICA
ORGANIC COMPOUNDS
PHENOLS
SALMON
SATURATION
SUPERSATURATION
THERMAL EFFLUENTS
TROUT
USA
VERTEBRATES
WASHINGTON
WATER QUALITY