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| Registros recuperados: 112 | |
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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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| Le Floc'H, Pascal; Murillas, Arantza; Aranda, Martin; Daures, Fabienne; Fitzpatrick, Mike; Guyader, Olivier; Hatcher, Aaron; Macher, Claire; Marchal, Paul. |
| A survey of past and existing management measures applied to different fisheries in European Western Waters is analyzed as a typology of co-management between governments and stakeholders. Faced with increasing constraints on accessing fish stocks, management measures have evolved toward fishing rights individualization, limited access and various other specific measures. Restrictions on access have changed fishermen’s behaviour in several significant ways. A comparative analysis, based on qualitative data collected through interviews and focus groups, is developed for fisheries from the following European countries: France, Ireland, Spain and the United Kingdom. Past and existing individual harvesting rights in the four countries are reviewed and compared. |
| Tipo: Text |
Palavras-chave: Management; Fishery governance; Common Fishery Policy (CFP). |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00248/35912/34455.pdf |
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| Van Iseghem, Sylvie; Quillerou, Emmanuelle; Brigaudeau, Cecile; Macher, Claire; Guyader, Olivier; Daures, Fabienne. |
| Since 2001, Ifremer has implemented an economic data collection programme (EDCP) within the Data Collection Framework of the EU. It aims to obtain economic data from a sample of vessels representative of the entire French fishing fleet. This paper presents the strategies used for vessel sampling selection in the French EDCP and its implementation over several consecutive years. The approach is illustrated by the sampling plan for the fleet in the North Sea Channel Atlantic region. We show that the EDCP allows precise economic indicators such as gross revenue or fuel costs to be estimated for the whole fishing fleet, including small vessels (< 10 m), and consequently, it facilitates sound scientific advice regarding the Common Fisheries Policy. The... |
| Tipo: Text |
Palavras-chave: Data collection; Economic indicators; Fishery-dependent information; Panel data; Sampling; Small vessels; Statistical precision. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00043/15419/12958.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 mineral 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, employment). 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/00117/22852/20661.pdf |
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| Daures, Fabienne; Le Grand, Christelle; Macher, Claire; Leonardi, Sophie; Guyader, Olivier; Rostiaux, Emilie; Quinquis, Jerome; Barone, Herve; Miossec, Dominique; Raguenes, Pierre; Truffy, Francois; Le Ru, Loic; Monhurel, Lise. |
| Ce document est une synthèse des enquêtes réalisées auprès des pêcheurs professionnels en 2011 dans le cadre du Système d'Informations Halieutiques (SIH) de l'Ifremer. Il vient en complément des synthèses annuelles sur les flottilles de pêches et présente des données agrégées sur les navires enquêtés, leurs stratégies, les équipages et la population des patrons pêcheurs qui ont accepté de répondre au questionnaire économique du SIH en 2011 (sur les données 2010). |
| Tipo: Text |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00148/25910/23937.pdf |
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| Guyader, Olivier. |
| Une perception largement répandue est que la flotte de pêche de l'Union Européenne (UE) est détenue par une multitude de propriétaires individuels. Cependant, des informations sur les acquisitions d'entreprises de pêche de l'UE par les entreprises d'autres États membres ou de pays tiers (hors UE) montrent que cette perception est une simplification d'une réalité plus complexe, pouvant être caractérisée par des entreprises détenant plusieurs navires, par des phénomènes d’intégration verticale par des société situées en aval de la filière ou encore des achats de fonds d’investissement. Aucun travail méthodologique n’a jamais été mené sur le sujet et le projet vise en utilisant des sources de données originales à analyser la structure de la propriété des... |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00598/71010/69282.pdf |
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| Lebechnech, Léa; Binet, Thomas; Guyader, Olivier; Gomes, César; Costa, Daniela; Gualberto, Rita; Cruces, Lorenzo; Barrera, Amaya Miguel; Gonzalez-porto, Marcos; Ruiz Abad, Marcos. |
| This report is focused in adding value to the actual catches by better differentiating them in the market, but also in ways to enhance the market value of off-shore species through innovative strategies like branding. This may alleviate fishing pressure on coastal resources by increasing the value of catches by local fishers, so that they can make a living with less pressure on resources. Consequently, the global objective of this report was to analyse current marketing strategies adopted by SS fishers in order to sell their fish, to understand their challenges and shortcomings, and to explore the possibilities for improving the current situation. The focus of this report will be place in the most relevant fishery in a selection of OR, trying to analyse... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00628/74016/73342.pdf |
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| Foucher, Eric; Blanchard, Michel; Cugier, Philippe; Desroy, Nicolas; Dreanno, Catherine; Fauchot, Juliette; Fifas, Spyros; Guyader, Olivier; Jean, Frederic; Le Gallic, Bertrand; Riou, Philippe; Schapira, Mathilde; Thiebaut, Eric. |
| The King scallop Pecten maximus constitutes the first landed species in terms of tonnage and the second or third one in terms of value for the French fisheries. More than 90% of these landings come from the English Channel indicating that its exploitation is essential to local fleets. The COMANCHE project (Ecosystem Interactions and anthropogenic impacts on King scallops populations in the English Channel) proposed to improve the knowledge of the scallop within the Channel, through an ecosystem-based approach for fisheries, appealing to a wide range of scientific disciplines (physics, chemistry, genetics, ecology, geostatistics, modeling, economics ....). Researches on the spatial location of scallop beds, connectivity by larval dispersal between beds,... |
| Tipo: Text |
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| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00251/36236/34797.pdf |
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| Levrel, Harold; Jacob, Celine; Bailly, Denis; Charles, Mahe; Guyader, Olivier; Aoubid, Scheherazade; Bas, Adeline; Cujus, Alexia; Fresard, Marjolaine; Girard, Sophie; Hay, Julien; Laurans, Yann; Paillet, Jerome; Agundez, Jose A. Perez; Mongruel, Remi. |
| There are two ways of assessing the costs of environmental degradation: as the costs associated with the loss of benefits resulting from the degradation of natural capital, and as the maintenance costs required to compensate for the actual or potential degradation of natural capital. The first of these methods is based on the Total Economic Value (TEV) of benefits forgone because of the depletion of ecosystem services delivered by marine biodiversity. The second method is based on the costs required to maintain a good state of marine biodiversity, one which makes it possible to deliver ecosystem services. This paper gives an illustration of this second approach. It details how these maintenance costs have been calculated in the initial assessment of the... |
| Tipo: Text |
Palavras-chave: Maintenance cost; Marine ecosystems; Marine Strategy Framework Directive; Economic analysis. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00188/29967/29457.pdf |
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| Registros recuperados: 112 | |
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