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Effects of temperature, hypoxia and activity on the metabolism of juvenile Atlantic cod
Schurmann, H.; Steffensen, J.F. (1997). Effects of temperature, hypoxia and activity on the metabolism of juvenile Atlantic cod. J. Fish Biol. 50(6): 1166-1180
In: Journal of Fish Biology. Fisheries Society of the British Isles: London,New York,. ISSN 0022-1112, more
Peer reviewed article  

Also published as
  • Schurmann, H.; Steffensen, J.F. Effects of temperature, hypoxia and activity on the metabolism of juvenile Atlantic cod. , more

Available in Authors 

Keywords
    Animal metabolism; Biological stress; Hypoxia; Juveniles; Temperature effects; Gadus morhua Linnaeus, 1758 [WoRMS]; Marine

Authors  Top 
  • Schurmann, H.
  • Steffensen, J.F.

Abstract
    Standard metabolic rate (SMR), active metabolic rate (AMR) and critical oxygen saturation (Scrit) were measured in Atlantic cod Gadus morhua at 5, 10 and 15°C. The SMR was 35.5, 57.0 and 78.2 mg O2 kg-1 h-1 and Scrit was 16.5, 23.2 and 30.3%, at 5, 10 and 15°C, respectively. Previously reported SMR for Atlantic cod from arctic waters at 4° C was twice that measured at 5°C in the present study. A possible intraspecific latitudinal difference in the SMR is discussed. The AMR was 146.6, 197.9 and 200.4 mg O2 kg-1 h-1 and the critical swimming speed (U crit) was 1.6, 1.7 and 1.9 at 5, 10 and 15°C, respectively. The maximum oxygen consumption was found to be associated with exercise, rather than recovery from exercise as previously reported in another study of cod metabolism.

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