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Creator:: Bellanger, Manuel, Merzereaud, Mathieu, Guyader, Olivier, and Macher, Claire
Abstract:: Integrating governance mechanisms into bio-economic modeling tools is a key challenge for the assessment of fisheries management plans. Impact assessments are carried out without considering real management options and institutional context. Only fishing mortality changes and their impact on fish stocks are considered. The Bay of Biscay sole fishery offers...
Resource Type:: Presentation
Full Text:: 5 0 0 0 6 0 0 0 0 6 5 0 0 0 Total effort 'Sole metier' Year D a y s a t s e a

Creator:: Macher, Claire, Guyader, Olivier, and Boncoeur, Jean
Abstract:: 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...
Resource Type:: Research Paper
Full Text:: sorting function L=Y(1-e-bT), the first condition gives: -bT Y bYe(T)f' = and T* the optimum sorting

Creator:: Daures, Fabienne, Bihel, Julien, Guyader, Olivier, Le Floc'h, Pascal, Roudaut, Nolwenn, Brigaudeau, Cécile, Thebaud, Olivier, and Jezequel, Michele
Abstract:: While the need to solve problems of overcapitalization and excess investment in fisheries is now broadly admitted, very little information exists on the level of capitalization and the structure of capital invested in the fishing sector. This paper presents the first results of a research program aiming at assessing the...
Resource Type:: Research Paper
Full Text:: ." ∑ = −+ + = T t t t r fV 1 1 )1(τ τ Where tV is the real value of an asset at the beginning of year t

Creator:: Hutton, Trevor, Guyader, Olivier, Prellezo, Raul, Mardle, Simon, and Thebaud, Olivier
Abstract:: Three case studies were included in a study on fishing vessels, most of which use trawl gear in demersal fisheries. The case studies include the French Bay of Biscay bottom-trawlers, the English beam trawlers fishing in the English Channel, Celtic Sea and North Sea, and the Basque trawlers fishing in...
Resource Type:: Research Paper
Full Text:: 2004 % o f U se p er G ea r T yp e Twin Trawl Single Trawl Per Modali ty 0% 10% 20% 30% 40

Creator:: Fresard, Marjolaine, Fifas, Spyros, and Guyader, Olivier
Abstract:: This paper deals with the economic impact of an aquatic invasive alien species on a coastal shellfish fishery. A slipper-limpet (Crepidula fornicata ) was accidentally imported some decades ago, has established and is spreading in the bay of Saint-Brieuc (France). This exotic species is acting as a space competitor for...
Resource Type:: Research Paper
Full Text:: function is defined as : ( ) ( .1)vjt vjt jt vst jty q N E N Eq= where: yvjt is for each vessel

Creator:: Steinmetz, Fabien, Thebaud, Olivier, Guyader, Olivier, and Blanchard, Fabian
Abstract:: Recent work in the domain of fisheries ecology has shown that major changes are occurring in fish communities exploited by commercial fisheries. Selective fishing pressure on more highly valued components of fish communities, and its indirect effects via trophic interactions, are amongst the key factors proposed to explain these changes....
Resource Type:: Research Paper
Full Text:: 97 19 99 20 01 Fi sh er P ric e in de x Source: Ifremer, based on CCPM-OFIMER-DPMA data

Creator:: Mardle, Simon, Thebaud, Olivier, Guyader, Olivier, Hutton, Trevor, Prellezo, Raul, and Travers, Muriel
Abstract:: The decision to enter or exit a fishery can be expected to depend on the anticipated profitability of operating in this fishery, as a function of observed vessel performances in previous years. For a vessel exiting a fishery, there may be several reasons including decommissioning, selling or operating elsewhere. Entry...
Resource Type:: Research Paper
Full Text:: bay of Biscay (ICES areas VIIIa,b,d,e) and the Celtic sea (ICES areas VIIc,f,g,h,j,k); • the Spanish

Creator:: Prellezo, Raul, Andersen, Bo, Guyader, Olivier, Hutton, Trevor, Marchal, Paul, Mardle, Simon, and Thebaud, Olivier
Abstract:: Fisher behavior can be divided into choices made in the short term (i.e. tactics) and choices made in the long-mid term (i.e. strategies). Random utility modeling (RUM) is well suited for the empirical analysis of these issues. In this paper, RUM is applied to a number of EU fisheries in...
Resource Type:: Research Paper
Full Text:: was based on the utility (e redistribute their effort over open would fish on a fishing ground w

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