Critical oxygen tension increases during digestion in the perch Perca fluviatilis

Oxygen uptake () and critical oxygen tension (Pcrit) were measured in resting perch Perca fluviatilis that were either fasting or digesting. Digestion caused to double (from 61 to 117 mg O2 kg−1h−1) and was associated with a rise in Pcrit (from 3·4 to 4·9 kPa), showing that the animal's digesti...

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Published inJournal of fish biology Vol. 76; no. 4; pp. 1025 - 1031
Main Authors Thuy, N. H., Tien, L. A., Tuyet, P. N., Huong, D. T. T., Cong, N. V., Bayley, M., Wang, T., Lefevre, S.
Format Journal Article
LanguageEnglish
Published Oxford, UK Blackwell Publishing Ltd 01.03.2010
Subjects
Freshwater
Perca fluviatilis
respirometry
specific dynamic action
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Summary:Oxygen uptake () and critical oxygen tension (Pcrit) were measured in resting perch Perca fluviatilis that were either fasting or digesting. Digestion caused to double (from 61 to 117 mg O2 kg−1h−1) and was associated with a rise in Pcrit (from 3·4 to 4·9 kPa), showing that the animal's digestive state must be considered when assessing the effect of hypoxia in natural conditions, and when defining optimal oxygen conditions in aquaculture.
Bibliography:ark:/67375/WNG-W8NTS4ZC-8
istex:7CDF30265AE3A5C9BE9C61CFC2E5D6EFD8A62828
ArticleID:JFB2533
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0022-1112
1095-8649
DOI:10.1111/j.1095-8649.2009.02533.x