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Comparative responses of speckled dace and cutthroat trout to air-supersaturated water

Journal Article · · Trans. Am. Fish. Soc.; (United States)
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Speckled dace (Rhinichthys osculus) are more tolerant of air-supersaturated water than adult or juvenile cutthroat trout (Salmo clarki). Speckled dace were tested in concentrations from 110 to 142% saturation and had a 96-hour median lethal concentration (LC50) of 140%, a 7-day LC50 of 137%, and 2-week LC50's of 129 and 131% saturation. The estimated mean threshold concentration, based on time to 50% death (TM50), was 123% saturation. The speckled dace also exhibited consistent external signs of gas bubble disease. Cutthroat trout were tested from 111 to 130% saturation and had 96-hour LC50's of 119 and 120% (adults) and 119 and 119% (juveniles) saturation. Estimated mean threshold concentrations (from TM50 values) were 117% (adults) and 114% (juveniles) saturation. Signs of gas bubble disease exhibited by the cutthroat trout were similar to those seen with other salmonids examined in earlier studies.

Research Organization:
Environmental Protection Agency, Corvallis, OR
OSTI ID:
6850381
Journal Information:
Trans. Am. Fish. Soc.; (United States), Journal Name: Trans. Am. Fish. Soc.; (United States) Vol. 109:6; ISSN TAFSA
Country of Publication:
United States
Language:
English

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Related Subjects

550100 -- Behavioral Biology
560400* -- Other Environmental Pollutant Effects
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR
ANIMALS
AQUATIC ECOSYSTEMS
AQUATIC ORGANISMS
ATMOSPHERIC PRESSURE
BIOLOGICAL EFFECTS
BIOLOGICAL STRESS
BUBBLES
COMPARATIVE EVALUATIONS
DATA
DISEASES
ECOLOGICAL CONCENTRATION
ECOSYSTEMS
FISHES
FLUIDS
FRESH WATER
GAS BUBBLE DISEASE
GASES
HYDROGEN COMPOUNDS
INFORMATION
OXYGEN COMPOUNDS
QUANTITY RATIO
SATURATION
SENSITIVITY
SOLUBILITY
SUPERSATURATION
TOLERANCE
VASCULAR DISEASES
VERTEBRATES
WATER