Influence of water temperature on gill sodium, potassium-stimulated ATPase activity in juvenile coho salmon (Oncorhynchus kisutch)

Comparative Biochemistry and Physiology, Part A: Physiology
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Abstract

1. Gill sodium, potassium-stimulated ATPase activity was determined from December to July in gills of yearling coho salmon (Oncorhynchus kisutch) maintained at four temperatures, 6, 10, 15 and 20°C.

2. Compared to fish held at 6°C, elevation in ATPase activity and the associated parr-smolt transformation were accelerated in fish at 10 and 15°C whereas animals at 20°C experienced at best only a transitory elevation in activity.

3. Fish transferred from one temperature to another developed ATPase activities characteristic of fish residing at temperatures to which they were transferred.

4. Cold water (6°C) tended to preserve the elevated ATPase activity while higher temperatures (10 and 15°C) caused decreases after an initial accelerated increase.


Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Influence of water temperature on gill sodium, potassium-stimulated ATPase activity in juvenile coho salmon (Oncorhynchus kisutch)
Series title Comparative Biochemistry and Physiology, Part A: Physiology
DOI 10.1016/0300-9629(76)90043-8
Volume 54
Issue 4
Year Published 1976
Language English
Publisher Elsevier
Contributing office(s) Western Fisheries Research Center
Description 3 p.
First page 419
Last page 421