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Responses by pacific halibut to air exposure: Lack of correspondence among plasma constituents and mortality

Transactions of the American Fisheries Society

By:
and
DOI: 10.1577/T04-209.1

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Abstract

Age-1 and age-2 Pacific halibut Hippoglossus stenolepis were exposed to a range of times in air (0-60 min) and air temperatures (10??C or 16??C) that simulated conditions on deck after capture to test for correspondence among responses in plasma constituents and mortality. Pacific halibut mortality generally did not correspond with cortisol, glucose, sodium, and potassium since the maximum observed plasma concentrations were reached after exposure to 30 min in air, while significant mortality occurred only after exposure to 40 min in air for age-1 fish and 60 min in air for age-2 fish. Predicting mortality in discarded Pacific halibut using these plasma constituents does not appear to be feasible. Lactate concentrations corresponded with mortality in age-1 fish exposed to 16??C and may be useful predictors of discard mortality under a limited set of fishing conditions.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Responses by pacific halibut to air exposure: Lack of correspondence among plasma constituents and mortality
Series title:
Transactions of the American Fisheries Society
DOI:
10.1577/T04-209.1
Volume
134
Issue:
4
Year Published:
2005
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Transactions of the American Fisheries Society
First page:
991
Last page:
998