Excess post-hypoxic oxygen consumption in Atlantic cod Gadus morhua.
JOURNAL OF FISH BIOLOGY 2013;
83:396-403. [PMID:
23902313 DOI:
10.1111/jfb.12171]
[Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Accepted: 05/13/2013] [Indexed: 05/10/2023]
Abstract
Atlantic cod Gadus morhua experienced oxygen deficit ( D O 2 ) when exposed to oxygen levels below their critical level (c. 73% of pcrit ) and subsequent excess post-hypoxic oxygen consumption (CEPHO ) upon return to normoxic conditions, indicative of an oxygen debt. The mean ± s.e. CEPHO : D O 2 was 6·9 ± 1·5, suggesting that resorting to anaerobic energy production in severe hypoxia is energetically expensive.
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