Some physiological consequences of handling stress in the juvenile coho salmon (Oncorhynchus kisutch) and steelhead trout (Salmo gairdneri)

Journal of the Fisheries Research Board of Canada
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Abstract

The stress of handling juvenile coho salmon (Oncorhynchus kisutch) and steelhead trout (Salmo gairdneri) in soft water and in water with added salts was evaluated using blood and tissue chemistry fluctuations as indices of metabolic and endocrine function. Changes in plasma glucose, chloride, calcium, and cholesterol levels indicated that significant osmoregulatory and metabolic dysfunctions can occur and persist for about 24 hr after handling in soft water. Pituitary activation, as judged by lack of interrenal ascorbate depletion, did not occur. Increasing the ambient NaCl and Ca++ levels to about 100 milliosmols and 75–120 ppm, respectively, partially or completely alleviated the hyperglycemia and hypochloremia indicating that the stress of handling had been reduced.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Some physiological consequences of handling stress in the juvenile coho salmon (Oncorhynchus kisutch) and steelhead trout (Salmo gairdneri)
Series title Journal of the Fisheries Research Board of Canada
DOI 10.1139/f72-284
Volume 29
Issue 12
Year Published 1972
Language English
Publisher NRC Research Press
Contributing office(s) Western Fisheries Research Center
Description 4 p.
First page 1780
Last page 1783
Online Only (Y/N) N
Additional Online Files (Y/N) N