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Sexual dimorphism in the energetics of reproduction and growth of North Sea plaice, Pleuronectes platessa L.
Rijnsdorp, A.D.; Ibelings, B. (1989). Sexual dimorphism in the energetics of reproduction and growth of North Sea plaice, Pleuronectes platessa L. J. Fish Biol. 35(3): 401-415
In: Journal of Fish Biology. Fisheries Society of the British Isles: London. ISSN 0022-1112, more
Peer reviewed article

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Keywords
    Biochemical composition; Bioenergetics; Growth; Reproduction; Sexual reproduction; Pleuronectes platessa Linnaeus, 1758 [WoRMS]; ANE, North Sea [gazetteer]; Marine

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  • Rijnsdorp, A.D., more
  • Ibelings, B.

Abstract
    The chemical composition and energy content of North Sea plaice during the spawning period were examined in mature males and females and in immature fish, to study differences in the allocation of energy over reproduction and somatic growth between the sexes. Reproductive investment was estimated from the energy loss during the spawning period and included the energy of sex products and spawning metabolism. Somatic growth comprised the annual increase in energy content of fish. The pattern of energy allocation over reproduction and somatic growth differed between males and females. Males started their reproduction at a smaller length and a younger age and allocated a higher proportion of the available energy into reproduction than females.

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