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| Registros recuperados: 112 | |
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| Thebaud, Olivier; Boncoeur, Jean; Curtil, Olivier; Guyader, Olivier; Jezequel, Michele; Martin, A.; Soulie, Jean-christophe; Tetard, Alain. |
| Le projet de recherche s'intègre dans deux actions du programme Seine-Aval II : Action R.IV-F° (2001-2002) - Coût de la disparition de l'activité halieutique, et Action R.IV-G (2002-2003) - Elaboration de scénarios d'évolution. L'objectif de la recherche était de développer les connaissances et outils permettant d'évaluer les conséquences, pour les entreprises de pêche exploitant la baie de Seine, de changements (transitoires ou durables) affectant l'écosystème estuarien. |
| Tipo: Text |
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| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00080/19078/16673.pdf |
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| Cisse, Abdoul; Blanchard, Fabian; Guyader, Olivier. |
| Like many tropical small-scale fisheries, the French Guiana coastal fishery is characterized by the high fish biodiversity of its ecosystem, the weak selectivity of the fleets exploiting the resources, and the heterogeneity of the vessels in terms of size and fishing techniques. The Rapfish method is used to assess sustainability within 11 fishery systems by means of 27 attributes relating to ecological, economic, social, and technological fields. Overall results indicate an average performance in the weak sustainability range. Comparisons made among the FSs show a gradient of sustainability performance from the western portion of the coast to the eastern portion. Several recommendations are formulated to raise the current “sustainability” status, such as... |
| Tipo: Text |
Palavras-chave: French Guiana; Small scale fishery; Sustainability; Rapfish; Ecosystem approach. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00162/27310/25662.pdf |
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| Daures, Fabienne; Girard, Sophie; Guyader, Olivier; Kalaydjian, Regis; Kerautret, Sylvie; Le Roux, Johann; Perez, Jose; Thebaud, Olivier. |
| This document presents a survey of the marine-related activities in France, i.e. those of the commercial sector (exploitation of minerai and living resources, manufacturing industries, services) and those of the public sector (Navy, State services, education, safety, marine research). A chapter is devoted to the protection of the coastal and marine environment, and the chapter on tourism gives quantitative data on the impacts of the pollution caused by the Erika oil-tanker. Each activity of the commercial sector is described by key-figures (turnover, value added, employmentl. The description of the non-commercial public sector includes data on costs, including personnel costs. In addition to these figures, qualitative information is given on the recent... |
| Tipo: Text |
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| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00117/22850/20660.pdf |
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| Leonardi, Sophie; Le Grand, Christelle; Merzereaud, Mathieu; Bettali, Tiphaine; Blanchard, Fabian; Mansuy, Emmanuel; Cisse, Abdoul; Guyader, Olivier. |
| This report describes the methodology for collecting economic data on commercial fleets in Guyana and Guadeloupe during the 2020 survey. The context and the objectives for producing indicators within the EU data collection framework, the survey is presented including the organization and collection procedure, field training and reporting as well as communication. The links to the technical documents are provided in particular the questionnaire used. The collection sampling plan is detailed with a description of, the reference population, the stratified sampling frame, the calculation of the sampling allocations. The samples are also described. The annex presents a summary of the questionnaire. |
| Tipo: Text |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00649/76105/77060.pdf |
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| Boncoeur, Jean; Guyader, Olivier; Thebaud, Olivier. |
| This paper provides a classification of fisheries management measures which is based on a typology developped by Boncoeur and Troadec (2003). This typology was discussed as part of the TECTAC research project, and amended to provide the following conceptual framework. Fisheries management tools may be classified according to their purpose, to the regulation method on which they rely, and to the control variable(s) which they use. The typology presented in this paper relies on these three criteria |
| Tipo: Text |
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| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/00243/35400/33920.pdf |
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| Boncoeur, Jean; Berthou, Patrick; Boude, Jean-pierre; Curtil, Olivier; Daures, Fabienne; Guyader, Olivier; Le Floc'H, Pascal; Thebaud, Olivier. |
| The identikit of Breton fishing in 2004 can be drafted through a few figures: 1,537 vessels in activity, 315,000 kW of nominal engine power, 7,053 sailors on board, 302,000 tonnes of catches (not including algae), about 466 million euros in profit. However, this global data does not take into account an essential characteristic of this activity: its great diversity. This latter can be declined based on different criteria. The most immediate criterion, that of the size of the vessels, is strongly correlated to that of the location of the activity. The class of the "less than 12 metres", the more numerous with a little more than a thousand vessels, exercises most of its activity on the coast (12 miles off the base lines). With about 260 vessels, the "12 to... |
| Tipo: Text |
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| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-6345.pdf |
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| Weiss, Jerome; Duchene, Julie; Le Blond, Samuel; Guyader, Olivier; Demaneche, Sebastien; Berthou, Patrick; Le Roy, Emilie; Leblond, Emilie; SIH. Systèmes d'Informations Halieutiques de l'Ifremer.. |
| Le présent document est une restitution globale des données disponibles au sein du SIH sur les navires de pêche français, et en particulier : • le fichier « Flotte de Pêche Communautaire » (FPC), qui référence l'ensemble des navires de pêche professionnelle de la flotte française et leurs caractéristiques techniques (source : DPMA) ; • les données du flux déclaratif, c'est-à-dire les déclarations de captures et d'effort de pêche des pêcheurs professionnels, issues des journaux de bord pour les navires de 10 mètres et plus et des fiches de pêche pour les navires de moins de 10 mètres (source : DPMA) ; • les données de ventes (essentiellement des ventes en criée) des navires de pêche professionnelle (source : DPMA) ; • les données d'enquêtes « Activité »... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00492/60343/63772.pdf |
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| Daures, Fabienne; Van Iseghem, Sylvie; Demaneche, Sebastien; Leblond, Emilie; Brigaudeau, Cecile; Guyader, Olivier; Berthou, Patrick. |
| While the majority of small-scale coastal fisheries are found in developing nations, a considerable number exist in developed nations as well. Indeed, small-scale fisheries are strongly represented in all European Union (EU) Member States, 81% and 87% of the EU 25 whole fleet is composed of vessels less than 12 and 15 meters long respectively. In 2000, European regulation established a fisheries data collection framework including economic information requirements in order to provide the scientific basis for the implementation of the Common Fisheries Policy. This paper presents the methodology designed to collect the relevant economic data and characterize the status of the French fleets from an economic perspective. Based on stratified sampling plan... |
| Tipo: Text |
Palavras-chave: Data collection; Sampling schemes; Economic data; Indicator; Revenue model; Small-scale fisheries. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/00059/16998/14500.pdf |
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| Berthou, Patrick; Daures, Fabienne; Guyader, Olivier; Merrien, Claude; Jezequel, Michele. |
| This summary of the French fisheries of the North Sea/English Channel/Atlantic for the year 2000 is done in the context of the programme "Halieutic Information Systems" that has as its goal the creation of a permanent and operational observatory of fishing. It brings together several types of data: statistical data of administrative origin, data from the IFREMER pollsters network, economic data and data acquired during sea campaigns. This first annual summary of French fisheries, meant for all actors in the fishing industry (from research to professionals and managers) and the general public, is limited to the Atlantic coast. The first part of this document contains an overall description of the English Channel Atlantic fleet, that is, all trades included.... |
| Tipo: Text |
Palavras-chave: Fishing gear; French fisheries; Fishing fleet; Species; Metier; Atlantic Ocean; Channel; North Sea; Pêcheries françaises; Flottille de pêche; Engins de pêche; Espèces; Métier; Atlantique; Manche; Mer du Nord. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/rapport-2629.pdf |
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| Macher, Claire; Guyader, Olivier; Boncoeur, Jean. |
| This paper proposes a formal analysis of the discarding issue including the sorting labour costs. Empirical evidences from an application to the Nephrops fishery in the Bay of Biscay show that sorting is an important time consuming activity on board and a factor of discarding. However existing literature does not explicitly take into account the sorting activity and mainly focus on quota and catch constraints. The discarding model described in the paper includes sorting as a factor explaining discards. The costs of sorting landings and the time to sort them are included in the approach. The model is developed for one species studied at a tow scale with the assumption that catches are exogenous. It is shown that taking sorting costs into account, discarding... |
| Tipo: Text |
Palavras-chave: Discarding behaviour; Sorting; Microeconomic model; Nephrops fishery; Effort constraints. |
| Ano: 2006 |
URL: https://archimer.ifremer.fr/doc/00511/62306/66554.pdf |
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| Guyader, Olivier; Berthou, Patrick; Daures, Fabienne. |
| The French decommissioning aims at permanently removing vessels from the fishing fleet according to European Union rules laid down within the Common Fisheries Policy. A system of premiums established by the French government is supposed to give the vessel-owners, the incentives to get rid of their fishing unit. This paper details the rules for the applicants and their evolution and it provides a preliminary analysis of the impact of these schemes over the 1991-2001 period. Special attention is paid to the characteristics of decommissioned vessels and of their owners. The problem of windfall gains of these policies is approached, and a first assessment is given. The consequences in terms of capacity adjustment are discussed according to the Multi Annual... |
| Tipo: Text |
Palavras-chave: Decommissioning schemes; Buyback; Capacity; Fisheries; Premium; MAGPs; Limited entry. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/00243/35407/33928.pdf |
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| Guillen, Jordi; Macher, Claire; Merzereaud, Mathieu; Fifas, Spyros; Guyader, Olivier. |
| MSY objectives are being adopted as major fisheries management targets worldwide. However, in fisheries where discards account for an important share of the catches, the yield, effort, and biomass at MSY can be significantly different when accounting or not for discards and thus when, basing the yield estimations on landings or catches. Also whether accounting for a certain survival rate, of discards can lead to different MSY targets estimates. Hence, both decisions have important, implications on catch and effort reduction recommendations, and consequently on the quota, calculations for fisheries managed by quotas. Results from the Bay of Biscay nephrops fishery confirm, that the optimal exploitation level can vary significantly when optimising for... |
| Tipo: Text |
Palavras-chave: Maximum Sustainable Yield (MSY); Discards; Nephrops; Survival rate. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00201/31180/29867.pdf |
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| Quillerou, Emmanuelle; Roudaut, Nolwenn; Guyader, Olivier. |
| Fishing capacity management policies have been traditionally implemented at national level with national targets for capacity reduction. More recently, capacity management policies have increasingly targeted specific fisheries. French fisheries spatially vary along the French coastline and are associated to specific regions. Capacity management policies however ignore the capital mobility associated with second-hand vessel trade between regions. This is not an issue for national policies but could limit the effectiveness of regional capacity management policies. A gravity model and a random-effect Poisson regression model are used to analyse the determinants and spatial extent of the second-hand market in France. This study is based on panel data from the... |
| Tipo: Text |
Palavras-chave: Gravity model; Fishing vessels; Second-hand markets; Poisson; French Atlantic. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00102/21288/19569.pdf |
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| Quillérou, Emmanuelle; Guyader, Olivier. |
| The study of fishery dynamics considers national-level fleet evolution. It has, however, failed to consider the flows behind fleet evolution as well as the impact of the dynamics of owners of invested capital on fleet evolution. This paper establishes a general conceptual framework which identifies different vessel and owner flows behind fleet evolution and some relationships between these flows. This descriptive conceptual framework aims to change the current focus on drivers of fleet evolution to drivers of the flows behind fleet evolution. We identify a direct impact of vessel flows on the fleet size and nature, and an indirect impact of the movements of capital owners on the fleet evolution (size and nature). This conceptual framework is illustrated... |
| Tipo: Text |
Palavras-chave: Capacity dynamics; Capacity reduction; Fishery management; Owner flows; Policy targeting; Vessel flows. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00087/19856/17536.pdf |
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| Registros recuperados: 112 | |
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