Temperature tolerance of nitrite-exposed channel catfish

Journal Article · Fri Mar 01 00:00:00 EST 1985 · Trans. Am. Fish. Soc.; (United States)

DOI:https://doi.org/10.1577/1548-8659(1985)114<274:TTONCC>2.0.CO;2· OSTI ID:5001340

Watenpaugh, D E; Beitinger, T L; Huey, D W

Upper temperature tolerances of channel catfish Ictalurus punctatus were determined with the critical thermal maximum (CTM) method after fish were exposed to various sublethal concentrations of nitrite for 24 hours at 20/sup 0/C. The CTM was inversely related to nitrite concentration; group means ranged from 38.0/sup 0/C for controls to 35.9/sup 0/C for fish exposed to 1.4 mg NO/sub 2//L. As expected from previous studies, percent methemoglobin was correlated with nitrite concentration, and thus was inversely correlated with CTM. These results indicate that nitrite-temperature interactions have the potential of adversely affecting the productivity of high-density channel catfish aquaculture systems, particularly those located in the southern US during summer. 40 references, 1 table.

• Research Organization: North Texas State Univ., Denton
• OSTI ID: 5001340
• Journal Information: Trans. Am. Fish. Soc.; (United States), Vol. 114:2
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
FISHES
TEMPERATURE EFFECTS
NITRITES
BIOLOGICAL EFFECTS
METHEMOGLOBIN
THERMAL STRESSES
ANIMALS
AQUATIC ORGANISMS
CARBOXYLIC ACIDS
GLOBIN
HEMOGLOBIN
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
NITROGEN COMPOUNDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PIGMENTS
PORPHYRINS
PROTEINS
STRESSES
VERTEBRATES
560305* - Chemicals Metabolism &amp; Toxicology- Vertebrates- (-1987)
560205 - Thermal Effects- Vertebrates- (-1987)