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Title: Factors influencing thiocyanate toxicity in rainbow trout Salmo gairdneri

Journal Article · · Bulletin of Environmental Contamination and Toxicology; (USA)
DOI:https://doi.org/10.1007/BF01701870· OSTI ID:7104500
;  [1]
  1. Alberta Environmental Centre, Vegreville, Alberta (Canada)

The toxicity of thiocyanate (SCN{sup {minus}}) to fish is influenced by the level of fish activity. This is evidenced most dramatically when fish are forced to perform short bouts of strenuous swimming, such as occurs during capture avoidance. Strenuous exercise of SCN{sup {minus}}-exposed fish results in sudden death syndrome, characterized by the immediate onset of convulsions, loss of equilibrium and buoyancy, flaring of the operculum, darkening of the skin epithelium and, within minutes, cessation of ventilation and extreme rigor. The present study was undertaken to examine the accumulation and toxicity of SCN{sup {minus}} in rainbow trout (Salmo gairdneri), in relation to exercise stress and ambient water quality. The effect of a single bout of exercise on blood SCN{sup {minus}} concentration was measured. In addition, effects of water hardness and Cl{sup {minus}} concentration on the accumulation of SCN{sup {minus}} in blood were determined.

OSTI ID:
7104500
Journal Information:
Bulletin of Environmental Contamination and Toxicology; (USA), Vol. 43:3; ISSN 0007-4861
Country of Publication:
United States
Language:
English