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| Registros recuperados: 112 | |
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| Daures, Fabienne; Trenkel, Verena; Guyader, Olivier. |
| Ten years after the start of the European Data Collection Framework the availability of cost indicators for assessing the economic status of fisheries or bio-economic modelling is still deficient. Moreover, economic time series are difficult to maintain due to fishermen weariness and sample coverage is often insufficient. To overcome these problems, the paper builds predictive models per operational cost category (fuel, landing, other variable, fixed, salary and total) for the French Bay of Biscay fleet. The cost models had good fit and stressed the key role of gear and vessel size (length mostly) for explaining fishing costs. They suggested that only a small list of variables was needed to predict costs (days-at-sea, total revenue, vessel age, length and... |
| Tipo: Text |
Palavras-chave: Socio-economic; Empirical cost model; Fisheries performance; Gear type; GAM; Ecosystem Approach to Fisheries. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00149/26039/24410.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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| Bellanger, Manuel; Macher, Claire; Merzereaud, Mathieu; Guyader, Olivier; Le Grand, Christelle. |
| An individual-based bio-economic model (IAM) is presented and applied to the Bay of Biscay sole fishery to investigate alternative quota management systems from a multi-criteria perspective. For this study, the model integrates several institutional arrangements related to catch share management. The current French co-management system with non-transferability of quota is compared to an alternative ITQ system in a context of transition to maximum sustainable yield (MSY). Trade-offs between ecological and socio-economic impacts are highlighted and the effectiveness of governance scenarios is discussed in regard to the challenge of capacity adjustment. Results emphasize that the introduction of ITQ is expected to reduce by 40% the number of vessels in the... |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00416/52779/53659.pdf |
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| Reynal, Lionel; Guyader, Olivier; Pau, Cedric; Mathieu, Heloise; Dromer, Clement. |
| In order to improve the sustainable development of FADs fishing, it is important to reduce the capture of juveniles or species that need a decrease in fishing effort, temporarily or definitively. Through previous statistics data coming from commercial fishing trips and new experimental fishing trips, we compared different gears and techniques selectivity for the species and the size of the capture around FADs. We also compared different type of bait used, the best hours to fish for better productivity and to target adults. Finally we look at the influence of the FAD distance from shore. We observed that fishers’ strategies have a critical influence on FADs setting and targeted species. The further the FAD is deployed and the better yield the fisherman... |
| Tipo: Text |
Palavras-chave: Anchored FAD; Artisanal and small scale fishing; Selectivity. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00230/34091/32527.pdf |
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| Guyader, Olivier; Berthou, Patrick; Reynal, Lionel; Demaneche, Sebastien; Bruneau, Marie; Bellanger, Manuel; Angin, Baptiste; Merrien, Claude; Guegan, Fabrice; Lespagnol, Patrick; Pitel, Mathilde; Jezequel, Michele; Leblond, Emilie; Daures, Fabienne. |
| Ce document présente les principaux résultats obtenus pour l’année de référence 2008, il ne détaille pas les différentes méthodologies mises en oeuvre pour la collecte, la validation, la qualification des données et leur traitement qui sont présentés dans des documents scientifiques et techniques séparés. Après avoir caractérisé les méthodologies statistiques et intégrées du système d'informations halieutiques, le rapport présente la structure de la flotte de pêche guadeloupéenne et son évolution depuis la fin des années 90. Il détaille l'activité des flottilles ainsi que les métiers pratiqués et leur distribution par communes et par zones de pêche. Une estimation de l'effort de pêche et des productions débarquées par espèces commerciales et par métiers... |
| Tipo: Text |
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| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00086/19689/17321.pdf |
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| Guyader, Olivier; Beugin, Baptiste; Lebechnech, Léa; Gonzalez, Yeray Pérez; Sieyro, Alberto Bilbao; Pavon, Maria Ninoska; Costa, Daniela; Rita, Gualberto; Lucas, Jorge. |
| One of the key goals of this report is to compare the fisheries governance systems in the different outermost regions in the context of the Common Fishery Policy (CFP). By fisheries governance systems, we mean the different institutions and the collective action processes by which decision making in fisheries management is established and the different set of laws, rules set for the regulation of the fishing activities. The Common Fishery Policy is often seen as a top-down process and the aim of the task was to identify and compare the role of fisher organizations and regional administration in the management of fisheries resources. Based on a better understanding of how each organization is functioning and which type of competencies such organizations... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00628/74018/73344.pdf |
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| Guyader, Olivier. |
| A widely held perception is that the European Union (EU) fishing fleet is owned by a multitude of individual owners. However, information on acquisitions of EU fishing companies by companies from other Member States or third countries (outside the EU) shows that this perception is a simplification of a more complex reality, which can be characterized by companies owning several vessels, through vertical integration phenomena by companies located downstream of the sector or the purchase of investment funds. Research on this subject is limited and the objective of this document is to identify the databases that can be used to quantify and qualify ownership structures both in bottom-up approaches starting from ships and top-down approaches starting from the... |
| Tipo: Text |
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| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00681/79304/81809.pdf |
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| Reynal, Lionel; Demaneche, Sebastien; Guyader, Olivier; Bertrand, Jacques; Berthou, Patrick; Dromer, Clement; Maros, Emmanuel; Bruneau, Marie; Bellanger, Manuel; Merrien, Claude; Guegan, Fabrice; Lespagnol, Patrick; Pitel-roudaut, Mathilde; Jezequel, Michele; Leblond, Emilie; Daures, Fabienne. |
| Le statut de département français fait de l’île de la Martinique une des régions ultra périphériques (RUP) de l’Union européenne. L’activité des navires de pêche qui exploitent sa ZEE s’inscrit dans le cadre de la politique commune des pêches de l’Union européenne, et la gestion des ressources partagées avec d’autres pays s’exerce dans le cadre des organisations internationales de pêche afférentes. Avec 1098 navires de pêche dont 1074 de moins de 10 mètres, la flotte de la Martinique représentait en 2009 16% de la flotte française. L’absence de données halieutiques depuis les évaluations de Gobert en 1989 a été identifiée à de nombreuses reprises comme un élément critique pour le suivi de l’évolution des activités de pêche et des ressources exploitées,... |
| Tipo: Text |
Palavras-chave: SIH; Système d’informations halieutiques; Pêche; Martinique. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00156/26762/24850.pdf |
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| Weiss, Jerome; Lespagnol, Patrick; Demaneche, Sebastien; Leonardi, Sophie; Bourjea, Jerome; Evano, Hugues; Reynal, Lionel; Guyader, Olivier; Baulier, Loic; Mansuy, Emmanuel; Berthou, Patrick; Daures, Fabienne; Leblond, Emilie; Merrien, Claude; Rostiaux, Emilie; Le Blond, Samuel. |
| Le programme d’observation des marées au débarquement, appelé « ObsDEB », contribue à l’estimation de l’effort de pêche et des captures des flottes de pêche françaises. Il vise tout particulièrement les flottilles de petite pêche côtière et procède à la collecte des informations requises selon un plan d’échantillonnage adapté à chaque région suivie. Ce rapport est le Rapport annuel de Convention DPMA-Ifremer 2016 et présente les estimations 2016 des efforts de pêche et des productions dans les régions Méditerranée continentale, La Réunion, Martinique, Guadeloupe et Guyane. |
| Tipo: Text |
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| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00414/52556/53393.pdf |
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| Blanchard, Fabian; Thebaud, Olivier; Guyader, Olivier; Lorance, Pascal; Boucher, Jean; Chevaillier, Pierre. |
| The populations of fishes dwelling near the sea bed (demersal species) on the continental shelf are usually the object of intense commercial exploitation. The Bay of Biscay shelf is no exception. Hence, populations suffer from this exploitation. Moreover, the general role played by hydro-climatic variations in the regulation of the abundance of demersal fish populations (population dynamics) is traditionally admitted. In the Bay of Biscay, a warming of the surface water has been observed over the three last decades (Koutsikopoulos et al., 1998). Climate change therefore has potential consequences on fish communities. Thus, the structure and dynamics of fish populations on the continental shelf of the Bay of Biscay are susceptible to suffer both from the... |
| Tipo: Text |
Palavras-chave: Modèles individus centrés; Conséquences économiques; Réchauffement climatique; Impact de la pêche; Communautés de poissons. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/rapport-6347.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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| Lebechnech, Léa; Reynal, Lionel; Guyader, Olivier; Gomes, César; Lucas, Jorge; Cruces, Lorenzo; Costa, Daniela; Rita, Gualberto. |
| The main objective of this report is to establish well-founded proposals for the design, implementation and responsible management of the comprehensive product “fishing tourism or pesca-toursim”, taking into account its diversity and adaptability to environmental, socioeconomic and cultural impacts. The project seek ed to establish a comprehensive intelligent management system to promote sustainable relationships among the different stakeholders for activities developed in coastal ecosystems. This product of “Fishing-Tourism” may be closely related to protected areas, as it may be intended to show not only the fishing culture but also the natural heritage of the areas involved. This report emphasizes the relevance of stakeholders’ participation... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00628/74017/73343.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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| Guyader, Olivier. |
| Cette thèse d’habilitation à diriger des recherches décrit un projet en économie des pêches centré sur la question des conditions d’évolution de la rente halieutique, avec une application aux flottilles françaises opérant en Atlantique. La quantification de la rente et l’analyse des processus par laquelle elle évolue, sont un enjeu majeur de recherche dans un domaine où des bénéfices substantiels peuvent être attendus d’une modification des conditions d’accès à des ressources communes et naturelles. La stratégie de recherche est organisée autour de thèmes complémentaires de travail qui concernent l’évaluation économique des usages, l’analyse des comportements des flottilles de pêche et le développement d’approches intégrées en bioéconomie pour l’évaluation... |
| Tipo: Text |
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| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/00243/35404/33925.pdf |
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| Hamon, Katell; De Vos, Birgit; Verlé, Katrien; Kinds, Arne; Bonanomi, Sara; Ferraris, Matteo; Falavigna, Greta; Notti, Emilio; Pagliarino, Elena; Pronti, Andrea; Sala, Antonello; Zoboli, Roberto; Guyader, Olivier; Macher, Claire; Zengin, Mustafa; Uzmanoglu, M.selcuk; Eigaard, Ole Ritzau; Nielsen, J. Rasmus; Jensen, Frank; Elleby, Christian. |
| In this deliverable we investigated the drivers of investment in fisheries and how those can be activated to stimulate investment in alternative technologies to protect the benthos. To capture a wider range of factors than quantitative factors only we modified the work plan and included interviews with fishing industries in all regions. As a result we identified a wide range of reasons why fishers have (or have not) invested in alternative gears. As expected, the profitability of alternative technology is an important factor to invest but we also found many others. Those drivers were classified as economic, technical, regulatory, social, governance and environmental drivers. As advice to managers we also identified where and how interventions could improve... |
| Tipo: Text |
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| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00425/53646/54483.pdf |
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| Registros recuperados: 112 | |
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