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Auteur (up) Sadoul, B.; Geffroy, B.; Lallement, S.; Kearney, M. url  doi
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  Titre Multiple working hypotheses for hyperallometric reproduction in fishes under metabolic theory Type Article scientifique
  Année 2020 Publication Revue Abrégée Ecological Modelling  
  Volume 433 Numéro Pages 109228  
  Mots-Clés Dynamic energy budget; Fishes; Life history; Scaling; Variability  
  Résumé Hyperallometric reproduction, whereby large females contribute relatively more to the renewal of the population than small females, is purported to be widespread in wild populations, especially in fish species. Bioenergetic models derived from a sufficiently general metabolic theory should be able to capture such a relationship but it was recently stated that no existing models adequately capture hyperallometric reproduction. If this were true it would seriously challenge our capacity to develop robust predictions of the life history and population dynamics in changing environments for many species. Here, using the European sea bass (Dicentrarchus labrax) as a test case, we demonstrate multiple ways that hyperallometric reproduction in a population may emerge from the Dynamic Energy Budget (DEB) theory, some inherently related to the metabolism and life history and others related to plastic or genetically based intraspecific variation. In addition, we demonstrate an empirical and modelled hypoallometric scaling of reproduction in this species when environment is controlled. This work shows how complex metabolic responses may underlie apparently simple relationships between weight and reproduction in the wild and provides new and testable hypotheses regarding the factors driving reproductive scaling relationships found in the wild.  
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  Langue en Langue du Résumé Titre Original  
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  ISSN 0304-3800 ISBN Médium  
  Région Expédition Conférence  
  Notes WOS:000564687300002 Approuvé pas de  
  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2832  
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