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Effect of acclimation temperature and heat shock on vulnerability of fry of lake whitefish (Coregonus clupeaformis) to predation

Journal of the Fisheries Research Board of Canada

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Abstract

Fry of lake whitefish (Coregonus clupeaformis) acclimated to 10, 15, and 18 C were exposed to temperatures of 24.5, 25, and 28 C for 1 min and then immediately returned to water at their acclimation temperatures, in test tanks containing yearling yellow perch (Perca flavescens). The number of attacks on the fry and the number captured and eaten in 30 min were recorded in separate tests of shocked and unshocked (control) whitefish. Significantly more whitefish were captured per attack (data for shocked and unshocked fry combined) at 15 and 18 C than at 10 C; and shocked fry were significantly more vulnerable to capture by the perch than were unshocked controls.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Effect of acclimation temperature and heat shock on vulnerability of fry of lake whitefish (Coregonus clupeaformis) to predation
Series title:
Journal of the Fisheries Research Board of Canada
Volume
31
Issue:
9
Year Published:
1974
Language:
English
Contributing office(s):
Great Lakes Science Center
Description:
p. 1503-1506
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of the Fisheries Research Board of Canada
First page:
1503
Last page:
1506
Number of Pages:
3