Data/hora: 12/06/2024 12:39:30

Provedor de dados: | 5
País: | France
Título: | Simulation des trajectoires de matière organique dans le Pertuis Breton. Couplage de l'hydrodynamisme et d'un modèle écophysiologique de M. edulis
Autores: | Pallas Sanz, Enric.
Data: | 2001
Ano: | 2001
Palavras-chave: | M. edulis; Potentialité mytilicole; Déplétion; Trajectoires; Modélisation; M. edulis; Trophy capacity; Depletion; Trajectories; Modelling.
Resumo: | The "Pertuis Breton" is a macrotidal estuary with an important mollusc exploitation of the inter-tidal zones. The main cultivated specie is M.edulis. In 1991, 250 long lines have been immersed in the centre of the bay. It will be able to extend the concession on the basis of the studies results about the trophy capacity of the "Pertuis Breton". Two deterministic models have been developed for to determining the geographical origin of the matter organic sources for the long line mussels culture, and the destine of this matter in the culture park: a) a model of trajectories of the organic matter particles, b) a coupled model of the hydrodynamic conditions and a ecophysiological model of the mussel growth. The result's simulations of the trajectories model reveals, after 5 days, that all particles of the organic matter witch arrive to the park, are the oceanic phytoplancton. On the other band, the cultivated mussels on "bouchots" receive the different supplies. In the mussel's park, the depletion model allows to known mussel's trophy provides, in function of the hydrodynamic and the biomasse of cultivated stock. The simulations shown a very weak day depletion for the present situation. However, an increase of 20 times the biomasse for this cultivated stock, produce a phytoplancton concentration reduction, in the concession, about to 2-20% (in function of the season). The simulation also shown, the high trophy capacity in the "Pertuis Breton" which are in agree with the bibliography's studies.
Tipo: | Text
Idioma: | Francês

Identificador:

http://archimer.ifremer.fr/doc/00449/56098/57634.pdf

http://archimer.ifremer.fr/doc/00449/56098/

Formato: | application/pdf

Fonte:

2001 Socrates/Erasmus

info:eu-repo/semantics/openAccess

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