Effect of acclimation temperature on the acute stress response in juvenile Atlantic cod, Gadus morhua L., and haddock, Melanogrammus aeglefinus L.
Identifieur interne : 000C27 ( Istex/Corpus ); précédent : 000C26; suivant : 000C28Effect of acclimation temperature on the acute stress response in juvenile Atlantic cod, Gadus morhua L., and haddock, Melanogrammus aeglefinus L.
Auteurs : William King V ; Lawrence J. Buckley ; David L. BerlinskySource :
- Aquaculture Research [ 1355-557X ] ; 2006-12.
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- KwdEn :
Abstract
Juvenile Atlantic cod (Gadus morhua L.) and haddock (Melanogrammus aeglefinus L.) were subjected to 30 s air exposure stressors following acclimation to 4, 10 and 14 and 4, 8 and 14°C respectively. Both species responded to the stressor with increases in plasma cortisol at all temperatures tested. At 14°C cortisol levels peaked within 1 h post‐stressor, and returned to pre‐stressor levels within 24 h. In contrast, at 4°C, peak cortisol levels were not attained until 6 h post‐stressor in haddock and remained elevated beyond 24 h in both species. The rate of plasma glucose accumulation was greater at higher temperatures in both species and no increase was seen at 4°C. Lysozyme activity in cod, in response to the stressor, was lower than the values reported for some other species and increased slightly at 14°C. The results show that cod and haddock acclimated to different temperatures respond to common, acute stressors in a manner similar to other teleosts.
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DOI: 10.1111/j.1365-2109.2006.01623.x
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<abstract lang="en">Juvenile Atlantic cod (Gadus morhua L.) and haddock (Melanogrammus aeglefinus L.) were subjected to 30 s air exposure stressors following acclimation to 4, 10 and 14 and 4, 8 and 14°C respectively. Both species responded to the stressor with increases in plasma cortisol at all temperatures tested. At 14°C cortisol levels peaked within 1 h post‐stressor, and returned to pre‐stressor levels within 24 h. In contrast, at 4°C, peak cortisol levels were not attained until 6 h post‐stressor in haddock and remained elevated beyond 24 h in both species. The rate of plasma glucose accumulation was greater at higher temperatures in both species and no increase was seen at 4°C. Lysozyme activity in cod, in response to the stressor, was lower than the values reported for some other species and increased slightly at 14°C. The results show that cod and haddock acclimated to different temperatures respond to common, acute stressors in a manner similar to other teleosts.</abstract>
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</titleInfo>
<genre type="journal">journal</genre>
<identifier type="ISSN">1355-557X</identifier>
<identifier type="eISSN">1365-2109</identifier>
<identifier type="DOI">10.1111/(ISSN)1365-2109</identifier>
<identifier type="PublisherID">ARE</identifier>
<part><date>2006</date>
<detail type="volume"><caption>vol.</caption>
<number>37</number>
</detail>
<detail type="issue"><caption>no.</caption>
<number>16</number>
</detail>
<extent unit="pages"><start>1685</start>
<end>1693</end>
<total>9</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">38B5B6CCB755D12550039A19AB2758ECBBADA44F</identifier>
<identifier type="DOI">10.1111/j.1365-2109.2006.01623.x</identifier>
<identifier type="ArticleID">ARE1623</identifier>
<recordInfo><recordContentSource>WILEY</recordContentSource>
<recordOrigin>Blackwell Publishing Ltd</recordOrigin>
</recordInfo>
</mods>
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<serie></serie>
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