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| Registros recuperados: 26 | |
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| Guyader, Olivier; Daures, Fabienne. |
| Data Envelopment Analysis (DEA) models are applied to the main French seaweed fleet to examine capacity output, capacity utilization, and scale inefficiency. Coastal seaweed vessels target only one output - kelp - with the same gear but with different input level combinations. The fishery is seasonal and subject mainly to input regulations, especially a one trip per day regulation implemented in 1987. The consequence was a decline in total observed output and a fall in capacity output and efficient output. Only the largest vessels and a few small vessels harvesting without this regulatory constraint operate at the optimal scale. The question of a change in regulation, especially a shift to an individual quota system, is raised. |
| Tipo: Text |
Palavras-chave: Data Envelopment Analysis; Capacity; Capacity utilization; Scale in- efficiency; Production frontier; Seaweed; Fleet. |
| Ano: 2005 |
URL: https://archimer.ifremer.fr/doc/00243/35439/33968.pdf |
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| Daures, Fabienne; Planchot, Marie; Demaneche, Sebastien; Van Isenghem, Sylvie; Berthou, Patrick; Leblond, Emilie; Jezequel, Michele. |
| In order to provide economic indicators for fisheries, analysis of contribution and economic dependencies of the Bay of Biscay fishing fleets to major commercial species catching in the ICES VIII area is conducted. 9 species are considered (regarding the importance of their landings in this area): Sole, Norway Lobster, Sea bass, Hake, Anglerfish, Anchovy, Sardine, Cuttlefish and Monkfish. The landings data are provided by the Harmonie database of the Fisheries Information System of Ifremer and the analysis per specie is done for the 2005 year on one side and over the period 2000-2005 on the other side. A stock slip is built for each species and presents : - Key figures on landings in the Bay of Biscay (total landings, average price, number of vessels... |
| Tipo: Text |
Palavras-chave: Bay of Biscay; Fleet; Economic dependence; DEM; Golfe de Gascogne; Flotte de pêche; Dépendance économique. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/rapport-4697.pdf |
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| Autissier, Isabelle; Coum, Andrée; Cuillandre, Jean Pierre; Veron, Gerard; Latrouite, Daniel. |
| At the end of the seventies, as fishing abundance (based on Catch Per Unit Effort) in crabs and lobster fishery steadily declined, operating expenses increased, and fishing boats changed strategy (changing metiers, covering larger distance to fishing areas, fishing seasons being extended, ...) professionals and scientists aimed to consider reinforcing management measures. To enlighten and support potential related decisions, the Comité Régional des Pêches et Cultures Marines de Bretagne (Regional Committee for fishing and farming in Brittany), together with the ISTPM (Ifremer since 1984), conducted a survey on the exploited populations and gave a review of the involved Breton fleet. This report shows the results of a survey conducted among fishermen,... |
| Tipo: Text |
Palavras-chave: Landings; Catch rates; Fishing area; Fishing effort; Fleet; Brittany; Edible crab; Lobster; Spider crab; Apport; Rendement; Zone de pêche; Effort de pêche; Flottille; Bretagne; Tourteau; Homard; Araignée. |
| Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/1981/rapport-1548.pdf |
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| Caill-milly, Nathalie; Duclercq, Benoit; Morandeau, Gilles; De Casamajor, Marie-noelle. |
| Introduction: With the objective of diversifying current fishing and at the request of professionals in Aquitaine, the Regional Commission of Maritime Fishing and Marine Breeding (CRPMEM) of Aquitaine has started a discussion about the possibilities of opening a shellfishery. In the context of this course of action, and because of the absence of information on the presence and size of the resource, the CRPMEM of Aquitaine asked IFREMER's Halieutic Resources Laboratory of Aquitaine (LRHA) for assistance in acquiring information on the subject. At the same time, a prospective analysis study of the exploitation of shellfish off the coast of Aquitaineregulation and business sectionwas performed by the CRPMEM of Aquitaine (Coiffec, 2006). At that same time,... |
| Tipo: Text |
Palavras-chave: France; North east atlantic; Aquitaine coasts; Fleet; Geographical zones; Sampling; Bivalvia; Shellfish fisheries. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/rapport-2217.pdf |
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| Charuau, Anatole. |
| If Sea Bass fish farming (Dicentrarchus labrax L.) is currently experiencing an increase in Southern Europe, it is vital, in order to better reflect raising structures, to control its wastes. In order to do so, quantifying this species' wastes is essential to be able to present simple excretion ratios, easily useable by the farmer. Those ratios have been based on nitrogen, phosphorus and carbon masses established on intensive farming and 4 batches belonging to his stock (averaging 24, 5 to 362, 5 g). Each batch was followed up during the course of 1 month and fish farming in its entirety for 2 months. Mass assessments for nitrogen and phosphorus were level ((intrants = extrants) but never precise, contrary to what can be found in bibliography. The main... |
| Tipo: Text |
Palavras-chave: Fleet; Statistics; Celtic sea; Discard; Lobster fishery. |
| Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/1985/rapport-1753.pdf |
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| Berthou, Patrick; Guyader, Olivier; Leblond, Emilie; Demaneche, Sebastien; Daures, Fabienne; Merrien, Claude; Lespagnol, Patrick. |
| The development on the ecosystem-based approach to fisheries implies to improve integrated analysis of fisheries by considering the biological as well as the socio-economic dimensions of the exploitation and thus, an improvement in the knowledge of fleets structure, evolution and activity. Since 2000, Ifremer has been implemented a Fisheries Information System (FIS), a multidisciplinary monitoring network allowing an integrated and comprehensive view of fishery systems including biological, technical, environmental and economical components. The FIS covers all the French fisheries, including the so-often neglected small-scale fisheries. One of the originalities of the FIS lies in the fleet monitoring procedure: a comprehensive collection of annual... |
| Tipo: Text |
Palavras-chave: Fleet; Métier; Fishing activity; Small-scale fisheries; Fleet typology. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/00059/16996/14498.pdf |
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| 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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| Lemoine, Michel; Giret, Marc. |
| From Normandy to Belgium bordary, the coastal fishery became during the ten last years a significant social and economic actor, which mostly lives by predominant exploitation of Eastern Channel. Recently discovering a situation of resource overexploitation and a difficult cohabitation between "metiers", these coastal fleets are in the heart of various preoccupations of managment at regional, national and european levels. Since 1985, a coordinated programme (including Boulogne and Ouistreham) allowed to progress in the knowledge of complex fisheries through : improvement of statistics, characterisation of coastal fleets and their activity, asses-ment of the knowledge on the resources.This synthesis describes, for 1987-1988, the quality of the regional... |
| Tipo: Text |
Palavras-chave: Ressource halieutique; Manche Orientale; Flottille; Pêche artisanale; Eastern English Channel; Fleet; Artisanal fishing. |
| Ano: 1991 |
URL: https://archimer.ifremer.fr/doc/1991/rapport-1664.pdf |
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| Durand, Jean-louis. |
| Introduction: Marine organism mortality in the Vilaine bay during July-August 1982, consecutive Dynophysis growth since that date prohibiting shellfish commercialisation, repetitious conflicts among sea professionals are the reflection of a fragile ecosystem and current instability of halieutic resources exploitation in Mor Braz . Becoming aware of this fragility the Ministère de la Mer (Ministry of the Sea) initiated the creation of the Commission Quadripartite (Quadripartite Commission) in charge of the Hydrobiologic Protection and Alieutic Development of the Quiberon-Vilaine bay, bringing together administrative and scientific professionals. Right from the start, among the missions entrusted to the Commission, the will to study the halieutic future of... |
| Tipo: Text |
Palavras-chave: Fishing; Exploitation; Loire Atlantique; Morbihan; Mor Braz; Halieutic resources; Fleet. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/1998/rapport-1771.pdf |
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| Registros recuperados: 26 | |
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