Ecophysiological dynamic model of individual growth of Ruditapes philippinarum

Jonathan Flye-Sainte-Marie 1 Fred Jean 1, * Christine Paillard 1 Susan Ford 2 Eric Powell 2 Eileen Hofmann 3 John Klinck 3
* Auteur correspondant
1 LEMAR - Laboratoire des Sciences de l'Environnement Marin (LEMAR)
2 HSRL - Haskin Shellfish Research Laboratory
3 CCPO - Center for Coastal Physical Oceanography
Abstract : A bioenergetics model of the Manila clam (Ruditapes philippinarum) was built to simulate growth, reproduction and spawning in culture and fishery field sites in Marennes–Oléron Bay (French Atlantic coast). The model is driven by two environmental variables: temperature and food supply. Food supply and the clam's filtration rate determine soft tissue condition index, which in turn drives clam growth and reproduction. The model was calibrated and then validated using two independent data sets. This paper discusses the difficulty of comparing experimental data and individual model outputs when asynchronous spawning events occur in the studied population. In spite of this difficulty, the simulations reproduce the typical pattern of growth and reproduction of the Manila clam. Simulations showed that water column chlorophyll a concentration is not a perfect estimator of food resources for a near bottom suspension feeder such as the Manila clam and emphasize the lack of knowledge about Ruditapes philippinarum nutrition. The individual growth model presented in this paper will be integrated into a numerical population model describing the host–parasite–environment relationship in Brown Ring Disease, caused by the bacterium Vibrio tapetis.
Keywords : Model Individual growth Energy balance Reproduction Food input Brown Ring Disease
Type de document :
Article dans une revue
Aquaculture, Elsevier, 2007, 266 (1-4), pp.130-143. 〈10.1016/j.aquaculture.2007.02.017〉
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Soumis le : mardi 2 février 2010 - 11:27:10
Dernière modification le : jeudi 11 janvier 2018 - 06:22:24
Document(s) archivé(s) le : vendredi 18 juin 2010 - 18:11:04

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Jonathan Flye-Sainte-Marie, Fred Jean, Christine Paillard, Susan Ford, Eric Powell, et al.. Ecophysiological dynamic model of individual growth of Ruditapes philippinarum. Aquaculture, Elsevier, 2007, 266 (1-4), pp.130-143. 〈10.1016/j.aquaculture.2007.02.017〉. 〈hal-00452257〉

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