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Registros recuperados: 8
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Etude d'une gestion optimale des pecheries de langoustines et de poissons demersaux en mer Celtique ArchiMer
Laurec, Alain; Charuau, Anatole; Perodou, Jean-bernard; Nedelec, Daniel; Biseau, Alain; Durand, Jean-louis; Rivoalen, Jean-jacques; Dupouy, Herve; Le Louarn, G.; Leroux, L..
The general study, scheduled from 1984 to 1986, aims at providing a judgement about the fisheries in the Celtic Sea. This area has been chosen because it is frequented by EEC vessels with, for the time being, a large majority of French vessels. Activities there are easier to monitor than anywhere else as coastal fisheries are little developed in the area. The final product will consist of a certain number of hypotheses about the planning strategies that could be implemented in the Celtic Sea. The main idea is, firstly, to conduct analytical studies, stock by stock, in order then, to synthesize them into a model integrating the interactions between fleets in relation to their target species. A bio-economical model, deriving from the latter, will enable the...
Tipo: Text Palavras-chave: Monk; Cuckoo ray; Blue whiting; Cod; Hake; Ling; Common dab; Data bases; Fishing statistics; French fisheries; Demersal fish; Nephrops; Celtic Sea; Baudroies; Raie fleurie; Julienne; Cardine; Morue; Merlu; Merlan; Base de données; Rejets; Statistiques de pêche; Pêcheries françaises; Poissons demersaux; Langoustine; Mer Celtique.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/rapport-3671.pdf
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Etude d'une gestion optimale des pecheries de langoustines et de poissons demersaux en mer Celtique (phase 1) ArchiMer
Biseau, Alain; Noel, Philippe; Ottenheimer De Gail, G.; Rivoalen, Jean-jacques.
This study of the demersal and benthic fisheries in the Celtic Sea is the logical continuation of the works conducted on the scampi fisheries since 1978. The program of the first phase of the study consists of 1 - A description of fisheries in the Celtic Sea. 2 – An assessment of the rejection of the marketable species in each fishery, with a special mention for fish fisheries. 3 – The constitution a computerized database including international fishing statistics since 1980. 4 – The sampling of the unloading of seven main species or groups of species: - cod and whiting, already sampled (length and age) regularly since 1978 in order to provide data to the CIEM workgroup. "Irish Sea – Bristol Channel", - scampi, sampled since 1980 in the scope of the CIEM...
Tipo: Text Palavras-chave: Cartography; Ray; Monk; Common dab; Hake; Demersal fish; Nephrops; Celtic Sea; Cartographie; Rejets; Raie; Baudroie; Cardine; Merlu; Poissons demersaux; Langoustines; Mer Celtique.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/rapport-3672.pdf
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Etude sur la pêcherie de langoustines de mer Celtique ArchiMer
Charuau, Anatole; Chesnier, Véronique; Conan, Gérard; Derennes, Marc; Destanque, Catherine; Guenole, Annie; Isifou, Amadou; Jezequel, Michèle; Miossec, Gilbert; Missaoui, Ichmi; Morizur, Yvon; Rivoalen, Jean-jacques.
Introduction : Since 1978, new measures to better manage lobster fisheries were implemented in the Celtic Sea within the context of Community regulations. Meshing, in particular, was set at 60mm, but many owners, in order to maintain sufficient leeway vis-à-vis the regulations and to avoid administrative hassles adopted at the outset fish meshing at 70mm, even 80mm. Certain habits aiming to compensate for the losses due to these increases were established: Adoption of better-performing trawls, increase in the secondary catch and enlargement of the fisheries. At the same time, especially because of strong demand from international bodies, OEM and especially EEC, knowledge about the lobster spread and more reliable assessments were achieved, the main problem...
Tipo: Text Palavras-chave: Stock assessment; Norway lobster; Celtic sea; Nephrops Norvegicus; Crustacea; Lobster fishery; Mer Celtique; Nephrops Norvegicus; Crustacea; Effort Peche; Sex Ratio; Capture; Relation Taille Poids; Maillage; Chalut; Gestion stock; Peche.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/1982/rapport-2337.pdf
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Evolution de l'activite-des flottilles françaises en Mer d'Irlande et en Mer Celtique ArchiMer
Charuau, Anatole; Morizur, Yvon; Rivoalen, Jean-jacques.
Since 1978, the habits of the french fishermen working with bottom trawl in the Irish Sea and in the Celtic Sea were altered (CHARUAU et M0RIZUR, 198l) under the pressure of the new mesh regulation. Two facts are pointed out: - the shifting, stabilized during 1980 and 198l, of a part of the effort of the vessels fishing for gadoids, from the area VIIa to the areaVIIf - a tendancy inside the area VIIg of a part of the effort of the Nephrops trawlers to be transferred on benthic fishes when the yield of Nephrops is low.
Tipo: Text Palavras-chave: Celtic sea; Fishing fleets; Irish sea.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/1982/acte-2342.pdf
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Identification des pecheries cotieres bretonnes et des problemes d'amenagement ArchiMer
Talidec, Catherine; Berthou, Patrick; Rivoalen, Jean-jacques; Bermell, Sylvain; Guillaumont, Brigitte.
The study undertaken during the 1994-1998 planning contract on the Breton fishing fleet made it possible to underscore the size of the economic activity in regional territorial waters: More than 85% of the ships work there. This space, which is a matter of national sovereignty, is mainly managed at the regional level. To clarify the paths that may need to be taken, it seemed opportune to us to identify spatially the coastal fisheries, as well as the main current problems of planning. The fishing zones were mapped. This work required special surveys of the local fishing committees, because it could not be done from existing fishing statistics. The surveys allowed us to approach the localization of the various trades' fishing zones on maps at 1/50,000, as...
Tipo: Text Palavras-chave: Fishing regulation; Territorial waters; Cartography; Survey; Fleet; Fisheries; Brittany; Réglementation; Enquêtes; Zones de pêche; Cartographie; Gisements naturels; Eaux territoriales; Flotte; Pêche bretonne; CPER.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/rapport-2256.pdf
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Les baudroies ou lottes, espèces majeures de la pêche française: situation et perspectives ArchiMer
Dupouy, Herve; Andro, M; Avrilla, J.l.; Fifas, Spyros; Kergoat, Bernard; Morizur, Yvon; Mtimet, M; Pennober, J.p; Rivoalen, Jean-jacques.
Tipo: Text Palavras-chave: North East Atlantic; France; Trade analysis; Commercial species; Angler; Monk; SEM; Débarquement; Recrutement; Engins de pêche; Lophius budegassa; Lotta lotta; Lophius piscatorius; Baudroie; Lotte.
Ano: 1993 URL: https://archimer.ifremer.fr/doc/1993/rapport-2187.pdf
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OBSERVHAL96, campagne d'observations à finalité halieutique ArchiMer
Latrouite, Daniel; Antoine, Loic; Cosson, Nathalie; Danel, Patrick; Desaunay, Yves; Dupouy, Herve; Galgani, Francois; Lorance, Pascal; Morandeau, Fabien; Morizur, Yvon; Rivoalen, Jean-jacques; Sacchi, Jacques; Troadec, Herve.
The scientific cruise Observhal96 took place in August 4-27, 1996 with the underwater system for exploration and intervention « Cyana » and the support vessel « Suroît ». The goal of this IFREMER first use of a man opereted submersible for a fisheries study was to observe fishes and invertebrates in their environment, as well as fishing gears in operation. All the dives, 2 to 5 hours long, took place off Brittany in Atlantic. Five were shalower than 100 meters, nine between 100 and 200 meters, one at 400 meters and for deeper than 1000 meters. Six dives have been dedicated to in situ study of the impact of fishing gears : observation of the geometry of a monkfish tramel net and analysis of losses during hauling ; tracks of a bottom trawl and relative...
Tipo: Text Palavras-chave: Fish behaviour; Fishery ecology; Submarine Cyana; Dive; Underwater observation; Comportement des poissons et invertébrés; Ecologie halieutique; Submersible Cyana; Observation sous marine.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/1996/rapport-1554.pdf
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Survie des langoustines (Nephrops norvegicus ) s'echappant d'un cul de chalut ArchiMer
Morizur, Yvon; Charuau, Anatole; Rivoalen, Jean-jacques.
The survival rate of Nephrops escaping through the cod-end was recently studied in the Bay of Biscay. Over the 45mm meshed cod-end was put a 15mm meshed net in order to retain the Nephrops escaping though, the cod-end. Soon after hauling escaped Nephrops were returned on the sea-bed into cages. After an inversion of 60-78 hours, the average survived rate was about 70 %. However it was found increasing with the size of individuals. The value obtained, which is only a result of- the action oh several factors, may be lower than the true value. I he evolution, of this biological parameter according to the mesh size is discussed in the scope of assessments
Tipo: Text Palavras-chave: Size distribution; Crustacean fisheries; Mesh selectivity; Trawling; Fishing mortality; Survival.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/1982/acte-2339.pdf
Registros recuperados: 8
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