Resistance of nitrite-exposed channel catfish, Ictalurus punctatus, to hypoxia

Journal Article · Mon Dec 01 04:00:00 EST 1986 · Bull. Environ. Contam. Toxicol.; (United States)

DOI:https://doi.org/10.1007/BF01607842· OSTI ID:6754898

Watenpaugh, D E; Beitinger, T L

Previous research in our laboratory has documented that exposure of channel catfish to sublethal concentrations of water-borne nitrite reduced both upper temperature tolerance and swimming performance. In both cases, effects were highly significantly correlated with nitrite concentrations. Since the authors found that nitrite negatively affected the ability of channel catfish to tolerate high temperature, they conducted research to determine if oxygen tolerance would be similarly influenced. As a major abiotic environmental limiting factor in aquatic environments, oxygen influences the physiology, biochemistry and behavior of fish and hence the productivity and economic returns from intensive aquaculture operations. They hypothesized that nitrite exposure and resultant methemoglobinemia would compromise the ability of channel catfish to resist a low constant oxygen concentration.

• Research Organization: North Texas State Univ., Denton
• OSTI ID: 6754898
• Journal Information: Bull. Environ. Contam. Toxicol.; (United States), Journal Name: Bull. Environ. Contam. Toxicol.; (United States) Vol. 37:6; ISSN BECTA
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
ANOXIA
AQUACULTURE
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
CARBOXYLIC ACIDS
ELEMENTS
FISHES
GLOBIN
HEMOGLOBIN
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
METHEMOGLOBIN
NITRITES
NITROGEN COMPOUNDS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN
OXYGEN COMPOUNDS
PHYSIOLOGY
PIGMENTS
PORPHYRINS
PROTEINS
VERTEBRATES