Responses by pacific halibut to air exposure: Lack of correspondence among plasma constituents and mortality
Transactions of the American Fisheries Society
By: M.W. Davis and C.B. Schreck
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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.
Suggested Citation
Davis, M., and Schreck, C., 2005, Responses by pacific halibut to air exposure: Lack of correspondence among plasma constituents and mortality: Transactions of the American Fisheries Society, v. 134, no. 4, p. 991-998, https://doi.org/10.1577/T04-209.1.
| 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 |
| Publication Date | January 09, 2011 |
| 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 |