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Seasonal variations in biochemical composition and energy content of liver, gonad and muscle of mature and immature cod, Gadus morhua (L.) from Balsaorden, northern Norway
Eliassen, J-E.; Vahl, O. (1982). Seasonal variations in biochemical composition and energy content of liver, gonad and muscle of mature and immature cod, Gadus morhua (L.) from Balsaorden, northern Norway. J. Fish Biol. 20(6): 707-716
In: Journal of Fish Biology. Fisheries Society of the British Isles: London. ISSN 0022-1112, more
Peer reviewed article

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Keywords
    Animal organs; Animal reproductive organs; Biochemical composition; Energy budget; Life cycle; Liver; Muscles; Spawning; Gadus morhua Linnaeus, 1758 [WoRMS]; Marine

Authors  Top 
  • Eliassen, J-E.
  • Vahl, O.

Abstract
    Seasonal energy changes in mature and immature cod of the same size were studied. For most ofthe year, the variations in energy content iathe tissues ofboth mature and immature cod are similar. In the period from October to January, the fish accumulate energy. From January until spawning in early April there is a fall in the total energy content. The growth of gonads from January until spawning can explain about one-third of the energy decrease in liver and muscle.

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