Plasma corticosteroid dynamics in channel catfish, Ictalurus punctatus (Rafinesque), during and after oxygen depletion

Plasma corticosteroid concentrations in channel catfish, Ictalurus punctatus, (normally 1.0 ± 0.3 μg/100 ml) increased significantly (to 5.9 ± 1.2μg/100 ml) in response to acute oxygen depletion and then returned to control levels within 30 min after the dissolved oxygen concentration was increased; however, a secondary increase in plasma corticosteroid levels was observed 6 h after exposure. Corticosteroid levels also increased in fish exposed to dissolved oxygen concentration of <0.2 mg/1 for three days. Methylene blue was not effective in preventing interrenal response to low dissolved oxygen. No diurnal plasma corticosteroid rhythm was observed in fish exposed to diurnal chemical rhythms of culture ponds.

[1]  B. Barton,et al.  Plasma Cortisol Levels of Fingerling Rainbow Trout (Salmo gairdneri) at Rest, and Subjected to Handling, Confinement, Transport, and Stocking , 1980 .

[2]  R. D. Ewing,et al.  Cortisol Concentrations in Confined Juvenile Chinook Salmon (Oncorhynchus tshawytscha) , 1978 .

[3]  C. Schreck,et al.  Stress Response of Coho Salmon (Oncorhynchus kisutch) Elicited by Cadmium and Copper and Potential Use of Cortisol as an Indicator of Stress , 1978 .

[4]  G. Wedemeyer,et al.  Prevention and Treatment of Nitrite Toxicity in Juvenile Steelhead Trout (Salmo gairdneri) , 1978 .

[5]  Carl B. Schreck,et al.  Anesthetic and Handling Stress on Survival and Cortisol Concentration in Yearling Chinook Salmon (Oncorhynchus tshawytscha) , 1978 .

[6]  R. M. Walker,et al.  Anaerobic metabolism in goldfish (Carassius auratus). , 1977, Canadian journal of zoology.

[7]  C. Schreck,et al.  Corticoid stress responses to handling and temperature in salmonids. , 1977 .

[8]  J. Defigueiredo,et al.  NECROSIS AND BACTERIAL INFECTION IN CHANNEL CATFISH (Ictalurus punctatus) FOLLOWING HYPOXIA1 , 1976, Journal of wildlife diseases.

[9]  H. M. Dye,et al.  Corticosteroid Concentrations in Sockeye Salmon (Oncorhynchus nerka) Exposed to Low Concentrations of Copper , 1975 .

[10]  W. Kirk.  The Effects of Hypoxia on Certain Blood and Tissue Electrolytes of Channel Catfish, Ictalurus punctatus (Rafinesque) , 1974 .

[11]  R. Spieler.  Short-Term Serum Cortisol Concentrations in Goldfish (Carassius auratus) Subjected to Serial Sampling and Restraint , 1974 .

[12]  P. M. Mehrle,et al.  Endrin Toxicosis in Rainbow Trout (Salmo gairdneri) , 1973 .

[13]  U. Fagerlund.  Determining Cortisol and Cortisone Simultaneously in Salmonid Plasma by Competitive Protein Binding , 1970 .

[14]  F. Beamish,et al.  Oxygen Consumption of Tilapia nilotica in Relation to Swimming Speed and Salinity , 1969 .

[15]  P. Fromm,et al.  Response of the interrenal gland of rainbow trout (Salmo gairdneri) to stress. , 1968, General and comparative endocrinology.

[16]  B. Murphy,et al.  Some studies of the protein-binding of steroids and their application to the routine micro and ultramicro measurement of various steroids in body fluids by competitive protein-binding radioassay. , 1967, The Journal of clinical endocrinology and metabolism.

[17]  R. Church,et al.  Diurnal rhythm in plasma glucocorticoid levels in channel catfish (Ictalurus punctatus) , 1966 .

[18]  C. Prosser,et al.  Acclimation of Goldfish to Low Concentrations of Oxygen , 1957, Physiological Zoology.

[19]  M. P. Shepard.  Resistance and Tolerance of Young Speckled Trout (Salvelinus fontinalis) to Oxygen Lack, with Special Reference to Low Oxygen Acclimation , 1955 .