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| Registros recuperados: 19 | |
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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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| 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 |
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| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/00243/35400/33920.pdf |
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| Boncoeur, Jean. |
| Le présent document constitue le rapport final d’un projet de recherche cofinancé par le Programme National d’Environnement Côtier, le Programme National « Espaces protégés » Du Ministère de l’Environnement et du Développement Durable et la Région Bretagne (au titre d’une bourse de thèse). Son contenu n’engage que ses auteurs. Le projet « Activités halieutiques et activités récréatives dans le cadre d’un espace à protéger : le cas du Parc National de la Mer d’Iroise » a mobilisé, de 2000 à 2004, 19 chercheurs relevant de trois institutions : o Université de Bretagne Occidentale, IUEM (CEDEM) o Ifremer (SEM et Laboratoire RH de Brest) o Université de Versailles-Saint-Quentin-en-Yvelines (C3ED) |
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| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/00243/35392/33913.pdf |
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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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| Boncoeur, Jean; Alban, Frederique; Guyader, Olivier; Thebaud, Olivier. |
| This paper investigates some economic consequences of creating a marine reserve on both fishing and ecotourism, when the range of controllability of fishing effort is limited and the impact of the reserve on ecosystem is considered. The issue is illustrated by the example of creating a no-take zone in part of a region where fishing is managed through a limited entry license system, and which is inhabited by two interacting stocks: a stock of prey (fish) and a stock of predators (seals). While the former is targeted by commercial fishing, the latter is not subject to harvest but is a potential basis for a commercial non-extractive activity (seal watching). Analysis is conducted with the help of a bioeconomic model combining the features of marine reserve... |
| Tipo: Text |
Palavras-chave: Marine protected areas; Multispecies interactions; Ecotourism; Bioeconomic modeling. |
| Ano: 2002 |
URL: https://archimer.ifremer.fr/doc/00244/35506/34010.pdf |
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| Marre, Jean-baptiste; Pascoe, Sean; Thebaud, Olivier; Jennings, Sarah; Boncoeur, Jean; Coglan, Louisa. |
| Ecosystem based management requires the integration of various types of assessment indicators. Understanding stakeholders' information preferences is important, in selecting those indicators that best support management and policy. Both the preferences of decision-makers and the general public may matter, in democratic participatory management institutions. This paper presents a multi-criteria analysis aimed at quantifying the relative importance to these groups of economic, ecological and socio-economic indicators usually considered when managing ecosystem services in a coastal development context. The Analytic Hierarchy Process (AHP) is applied within two nationwide surveys in Australia, and preferences of both the general public and decision-makers for... |
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Palavras-chave: Analytic hierarchy process; Australia; Coastal development; Ecosystem services assessment; Information preferences; Multi-criteria analysis. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00313/42428/41791.pdf |
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| Talidec, Catherine; Boncoeur, Jean; Boude, Jean-pierre. |
| L’ouvrage est dédié à la situation des pêches côtières bretonnes au début des années 2000. Point clé pour comprendre les problèmes rencontrés aujourd’hui par la pêche, la question de la régulation de l’accès aux ressources halieutiques est abordée en introduction. L’état d’exploitation des principaux stocks exploités par la pêche côtière bretonne est ensuite examiné, et les caractéristiques de la flotte de pêche, ses activités et son évolution récente sont présentées. Les performances économiques des navires sont analysées, et l’impact de l’augmentation du coût du carburant au début de la décennie est mis en évidence, de façon différenciée selon les métiers exercés. La pêche de loisir est traitée à travers les résultats d’un sondage national permettant... |
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| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00005/11630/75754.pdf |
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| Boncoeur, Jean; Le Gallic, Bertrand; Fifas, Spyros. |
| L'exploitation des ressources halieutiques s'accompagne d'externalités entre pêcheurs, qui sont source d'inefficacité et de conflits. Ces problèmes prennent un tour plus aigu à mesure que s'accroît la pression anthropique sur les ressources. elle-même stimulée par l'inefficacité de leur exploitation. L'analyse du divorce entre rationalité privée et rationalité collective, ainsi que la réflexion sur les moyens de les réconcilier sont au coeur de la théorie économique des pèches qui, depuis les années 50, s'est développée sur une base « bioéconomique » intégrant la dynamique des stocks. La portée pratique des modèles bioéconomiques est toutefois limitée par plusieurs facteurs. Outre le fait quïls ont souvent tendance à sacrifier le réalisme des hypothèses au... |
| Tipo: Text |
Palavras-chave: Economie des pêches; Modèles bioéconomiques; Effets externes; Coùt social; Aménagement des pêcheries.. |
| Ano: 2005 |
URL: https://archimer.ifremer.fr/doc/00502/61367/64996.pdf |
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| Marre, Jean-baptiste; Brander, Luke; Thebaud, Olivier; Boncoeur, Jean; Pascoe, Sean; Coglan, Louisa; Pascal, Nicolas. |
| Non-use values (i.e. economic values assigned by individuals to ecosystem goods and services unrelated to current or future uses) provide one of the most compelling incentives for the preservation of ecosystems and biodiversity. Assessing the non-use values of non-users is relatively straightforward using stated preference methods, but the standard approaches for estimating non-use values of users (stated decomposition) have substantial shortcomings which undermine the robustness of their results. In this paper, we propose a pragmatic interpretation of non-use values to derive estimates that capture their main dimensions, based on the identification of a willingness to pay for ecosystem protection beyond one's expected life. We empirically test our... |
| Tipo: Text |
Palavras-chave: Discrete choice experiment; Ecosystem services valuation; Non-use values; Time decay; Willingness to pay. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00244/35564/35398.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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| Guillen, Jordi; Boncoeur, Jean; Carvalho, Natacha; Frangoudes, Katia; Guyader, Olivier; Macher, Claire; Maynou, Francesc. |
| In most fisheries worldwide, crew are paid through different shared remuneration systems rather than a fixed wage. In shared remuneration systems, wages can significantly increase when the economic performance of vessels improve, and consequently provide incentives to workers. However, in recent years, mainly due to high overexploitation levels that lead to reduced productivity and consequently lower salaries shared remuneration systems have lost their attractiveness. Different remuneration systems applied in fisheries world-wide are described and analyzed comparatively. Results explain how crew wages and rent distribution outcomes vary between the different remuneration systems depending on the state of exploitation of the resource. |
| Tipo: Text |
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| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00375/48602/48983.pdf |
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| Talidec, Catherine; Boncoeur, Jean; Alban, Frédérique; Curtil, Olivier; Le Floc'H, Pascal; Le Gallic, Bertrand; Pennanguer, Stéphane; Berthou, Patrick; Fifas, Spyros; Latrouite, Daniel. |
| This document is the 2001 activity report delivered by IFREMER, CEDEM (IUEM, UBO) and ENSA of Rennes for a co-financed study by the Brittany region within the framework of the XII CPER. This report is composed of: - an IFREMER study on the historical evolution of the Breton fleet created using data from the "halieutic observations system" (SIH) and surveys on the economic activity of fishing ships. The study is most interested in the Mor Braz and the Sea of Iroise sites. - an analysis by CEDEM of the legal and economic aspects of fishing along the coastal strip through two case studies: A seasonal break from bottom trawling and the diversification of professional fishing towards tourist and recreational economic activities. - a study by ENSA of Rennes on... |
| Tipo: Text |
Palavras-chave: Recreative fishing; Professionnal fishing; Breton fisheries; Survey; Data collection; Fishing fleet; Metier; Fishing activites; Brittany; Golfe du Morbihan; Mer d'Iroise; Mor Braz; Reglementation; Pêche de loisir; Pêche professionnelle; Pêcherie bretonne; Enquêtes; Collectes de données; Flottilles; Metier; Opérations de pêche; Bretagne. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/rapport-2289.pdf |
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| Marre, Jean-baptiste; Thebaud, Olivier; Pascoe, Sean; Jennings, Sarah; Boncoeur, Jean; Coglan, Louisa. |
| The use and influence of ecosystem services valuation in management decision-making, particularly as it relates to coastal zone management, remains largely unexplored in the academic literature. A recent Australia-wide survey of decision-makers involved in coastal zone management examined if, how and to what extent economic valuation of coastal and marine ecosystem services is used in, and influences, decision-making in Australia. The survey also identified a set of cases where economic valuation of ecosystem services was used for decision-making, and reasons why economic values may or may not be considered in the decision-making process. This paper details the method and results from this survey. Overall, there is strong empirical evidence that economic... |
| Tipo: Text |
Palavras-chave: Coastal zone management; Decision-making; Ecosystem services; Economic valuation. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00257/36812/42022.pdf |
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| Le Floc H, Pascal; Thebaud, Olivier; Boncoeur, Jean; Daures, Fabienne; Guyader, Olivier. |
| Fishing activities have a significant role in socio-economic base for a few coastal areas. In this respect, fleets operating mainly in coastal fisheries deserve a special interest due to their narrow links with the home base. However, coastal fleet activities are not very known, restricting the capacity to deliver a diagnosis on their economic viability. This article suggests an assessment of the influence and the economic performance of the coastal fleets in Brittany. Results show similar economic performances for coastal units compared to offshore units. Furthermore, coastal units own additional advantages in relation to their energy consumption and capacity to operate without public subsidies. However, there are vulnerable to fishing effort of offshore... |
| Tipo: Text |
Palavras-chave: Pêche côtière; Performance économique; Dépendance énergétique; Mesures de gestion; Coastal fishery; Economic performance; Energy dependency; Management measures. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/00243/35421/33958.pdf |
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| Registros recuperados: 19 | |
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