MODELLING OF THE COCKLE (CERASTODERMA EDULE L.) FISHING GROUNDS IN A PURPOSE OF SUSTAINABLE MANAGEMENT OF TRADITIONAL HARVESTING - Equipe E-COS Accéder directement au contenu
Communication Dans Un Congrès Année : 2011

MODELLING OF THE COCKLE (CERASTODERMA EDULE L.) FISHING GROUNDS IN A PURPOSE OF SUSTAINABLE MANAGEMENT OF TRADITIONAL HARVESTING

Alain Ponsero
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  • PersonId : 862095
Laurent Dabouineau
  • Fonction : Auteur
  • PersonId : 855872

Résumé

The cockle Cerastoderma edule has been collected by traditional fishing methods for many decades in the Bay of Saint-Brieuc, a 2 900 ha tidal bay, without any evaluation or management of this resource. Since 2001, the National Natural Reserve of the bay of Saint-Brieuc has carried out an annual assessment of the stock and a mapping of the cockle fishing grounds. The assessment takes place between the end of July and mid-August on a regular sampling network of 131 stations 500m apart and covering the whole of the 2900 ha inter-tidal foreshore. Cockles are harvested for each station within a square of 0,25m² and measured in laboratory. This led to the development of a predictive model on the fishing grounds production using the growth stages of each individual and the biomass. The model provides benefits for managers, in particular: * A mid-term prediction (1 to 2 years) of the fishable part of the cockle fishing ground. This allows requests from institutional organizations to be answered , who meet every year with professionals and scientists to rule on the next fishing season * A means to assess quickly the impact of any change to the minimum legal fishing size on the fishable part of the cockle fishing ground * A means to estimate the potential impact of a managment project which could interfere with the way of the fishing ground functions This approach can be easily transfered to other co-managment shemes of Cockle fishing grounds.
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Dates et versions

hal-00670256 , version 1 (15-02-2012)

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  • HAL Id : hal-00670256 , version 1

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Alain Ponsero, Laurent Dabouineau, Sturbois Anthony. MODELLING OF THE COCKLE (CERASTODERMA EDULE L.) FISHING GROUNDS IN A PURPOSE OF SUSTAINABLE MANAGEMENT OF TRADITIONAL HARVESTING. Biodiversité, écosystèmes et usages du milieu marin : quelles connaissances pour une gestion intégrée du golfe normand-breton ? (Ed Agence Aires Marines Protégées - Ifermer),, Nov 2011, St Malo, France. ⟨hal-00670256⟩
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