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Excess post‐hypoxic oxygen consumption in Atlantic cod Gadus morhua
Author(s) -
Plambech M.,
Van Deurs M.,
Steffensen J. F.,
Tirsgaard B.,
Behrens J. W.
Publication year - 2013
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.12171
Subject(s) - gadus , biology , atlantic cod , oxygen , hypoxia (environmental) , fishery , anaerobic exercise , zoology , physiology , fish <actinopterygii> , chemistry , organic chemistry
Atlantic cod Gadus morhua experienced oxygen deficit ( D O 2) when exposed to oxygen levels below their critical level ( c . 73% of p crit ) and subsequent excess post‐hypoxic oxygen consumption ( C EPHO ) upon return to normoxic conditions, indicative of an oxygen debt. The mean ± s.e . C EPHO : D O 2was 6·9 ± 1·5, suggesting that resorting to anaerobic energy production in severe hypoxia is energetically expensive.