2 resultados para Cáries dentárias
em Archimer: Archive de l'Institut francais de recherche pour l'exploitation de la mer
Resumo:
L'action Echantillonnages biologiques des captures a pour objet de réaliser des échantillonnages en taille des débarquements des navires de pêche professionnels dans les principaux points de débarquement en France métropolitaine, selon le programme national avalisé par les services de la Commission européenne et dans le cadre plus général de l’action dédiée et dénommée Observation des ventes (acronyme ObsVente). L’objectif est de produire des structures en taille des débarquements des principales espèces commerciales pour les besoins des évaluations de stocks par les Organisations Régionales de Gestion des Pêches (ORGP) et autres instances scientifiques internationales compétentes (comme le CIEM), conformément aux obligations internationales de la Communauté et de ses États Membres (règlement (CE) N°199/2008, article 20).
Resumo:
The landing ban of Raja undulata has raised misunderstanding for French fishermen, particularly for those fishing in the Norman‐Breton gulf (Southeast of ICES Division VIIe) where this species is very abundant. In this context, the RAIMOUEST project was launched as a professional and scientist partnership in order to enhance fisheries data on the main ray species caught in the Norman-Breton Gulf (Raja undulata, Raja brachyura, Raja clavata, Raja montagui and Raja microocellata). The French ray fisheries fleet was identified and a sample of fishermen involved in rays fishing was interviewed. Landings and effort data (logbooks), auctions sales and sampling at sea aboard professional fishing vessels were analysed. This working document presents the current results of this study. The French fleet concerned by ray fishing in the Normand-Breton Gulf in 2012 was composed of 289 vessels, mainly coastal trawlers/dredgers and small length size netters and longliners. R. undulata is the main ray species in this area. This species seems to form a local stock in the Normand-Breton Gulf with some continuity in the Eastern English Channel and the Western part of the Western English Channel. Three ways of analysis were used to provide an indicative level of R. undulata stock: French landings before 2009 were estimated at least at 300 tons in the Western English Channel (VIIe) and 160 tons in the Normand-Breton Gulf; sales at auctions of the Basse-Normandie fleet before 2009 were estimated at 235 tons in the western English Channel and 35 tons in the eastern English Channel (VIId); discards by the French bottom trawl fleet in ICES Division VIIe in 2012 and 2013 were estimated at 750 tons. Information on the spatial distribution of the other ray species in the English Channel was also provided. The coastal localisation of nursery for R. undulata and R. clavata was highlighted.