A coupled biophysical model for the distribution of the great scallop Pecten maximus in the English Channel

Abstract : In this paper we used a modelling approach integrating both physical and biological constraints to understand the biogeographical distribution of the great scallop Pecten maximus in the English Channel during its whole life cycle. A 3D bio-hydrodynamical model (ECO-MARS3D) providing environmental conditions was coupled to (i) a population dynamics model and (ii) an individual ecophysiological model (Dynamic Energy Budget model). We performed the coupling sequentially, which underlined the respective role of biological and physical factors in defining P. maximus distribution in the English Channel. Results show that larval dispersion by hydrodynamics explains most of the scallop distribution and enlighten the main known hotspots for the population, basically corresponding to the main fishing areas. The mechanistic description of individual bioenergetics shows that food availability and temperature control growth and reproduction and explain how populations may maintain themselves in particular locations. This last coupling leads to more realistic densities and distributions of adults in the English Channel. The results of this study improves our knowledge on the stock and distribution dynamics of P. maximus, and provides grounds for useful tools to support management strategies.
Liste complète des métadonnées

Littérature citée [53 références]  Voir  Masquer  Télécharger

http://hal.univ-brest.fr/hal-01394278
Contributeur : Fred Jean <>
Soumis le : mercredi 9 novembre 2016 - 10:04:16
Dernière modification le : jeudi 11 janvier 2018 - 06:22:24
Document(s) archivé(s) le : mardi 14 mars 2017 - 21:55:34

Fichier

legoff2016pdfjam.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Clément Le Goff, Romain Lavaud, Philippe Cugier, Fred Jean, Jonathan Flye-Sainte-Marie, et al.. A coupled biophysical model for the distribution of the great scallop Pecten maximus in the English Channel. Journal of Marine Systems, Elsevier, 2016, 〈10.1016/j.jmarsys.2016.10.013〉. 〈hal-01394278〉

Partager

Métriques

Consultations de la notice

141

Téléchargements de fichiers

228