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Registros recuperados: 4
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Développement d'une plateforme d'évaluation de plans de gestion spatialisés : application à la pêcherie mixte démersale du golfe de Gascogne ArchiMer
Vigier, Audric.
North-East Atlantic fisheries management goes towards a regionalisation, accounting for mixed fisheries technical interaction. Hence, understanding and assessing the spatio-temporal dynamics of exploited species and the fleets exploiting them is needed. This study aims to provide a tool to assess the effects of several management scenarii in the Bay of Biscay. lt fouses on North-east Atlantic northern hake stock (Merluccius merluccius) and the mixed demersal hake - sole (Solea solea) - Norway lobster (Nephrops norvegicus) Bay of Biscay fisheries.A Management Strategy Evaluation (MSE) framework has been developed, pairing a spatial northern hake stock assessment model, and an operating model (lSlS-Fish) simulating the Bay of Biscay mixed demersal...
Tipo: Text Palavras-chave: Merlu; Golfe de Gascogne; Evaluation de stratégies de gestion; Hake; Bay of Biscay; Management strategy evaluation; ISIS-Fish; Stock synthesis.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00498/60972/64380.pdf
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Impact des mesures de gestion sur la dynamique de la pêcherie pélagique du golfe de Gascogne : Quelles certitudes ? Quels descripteurs ? ArchiMer
Lehuta, Sigrid.
Quantitative evaluations of management measure impact on resource and fleet viability are required to provide diagnostics and feed decision process. Fisheries are complex systems where numerous dynamics interact at various spatial and temporal scales. This complexity and the difficulty to observe marine systems are responsible for the high uncertainty surrounding fishery functioning that makes it hard to identify adequate management measures. The increasing consideration of uncertainties in diagnostics argues in favor of robust management measures rather than optimal management measures. Identifying robust management measures requires the development of models that account for complexity and uncertainty in the description and prediction of management...
Tipo: Text Palavras-chave: Modélisation; Pêcherie mixte; Gestion des pêcheries; Incertitudes; Simulation; Analyse de sensibilité; Indicateurs; Gestion spatialisée; ISIS-Fish; Modeling; Mixed fisheries; Fishery management; Uncertainty; Simulation; Sensitivity analysis; Indicators; Spatialised management; ISIS-Fish.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00025/13630/10712.pdf
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Toward a Dynamical Approach for Systematic Conservation Planning of Eastern English Channel Fisheries ArchiMer
Reecht, Yves; Gasche, Loïc; Lehuta, Sigrid; Vaz, Sandrine; Smith, Robert J; Mahevas, Stephanie; Marchal, Paul.
In the past decade, systematic conservation planning tools have been increasingly and successfully used to set spatial conservation plans that meet quantitative protection targets while minimizing enforcement and socioeconomic costs. However, when applied to fisheries, systematic conservation planning fails to account for (1) changes in fleet dynamics induced by new conservation constraints and their associated feedbacks on conservation costs or (2) their influence on fish population dynamics and distributions, which may in turn alter the achievement of conservation targets. Such a static approach may therefore lead to short- or medium-term misestimates in forecasted costs and target achievements. In order to circumvent such limitations of systematic...
Tipo: Text Palavras-chave: MPAs; Systematic conservation planning; Mixed fisheries dynamics; Model coupling; Eastern English Channel; Marxan with Zones; ISIS-Fish.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00293/40421/39077.pdf
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Using a quantitative model for participatory geo-foresight: ISIS-Fish and fishing governance in the Bay of Biscay ArchiMer
Provot, Zoe; Mahévas, Stephanie; Tissière, Laurie; Michel, C.; Lehuta, Sigrid; Trouillet, B..
This study investigated the use of a complex quantitative simulation model for participatory geo-foresight for the governance of the marine socio-ecosystem in the Bay of Biscay. The approach is simulation-based combining qualitative and quantitative expert-knowledge focusing on the demersal fishery in the Bay of Biscay. A three-stage approach was carried out : (i) translation by stakeholders of a narrative scenario drawn up during the geo-foresight into quantitative sub-scenarios that could be parameterized in ISIS-Fish; (ii) simulation with ISIS-Fish and study of the consequences of the sub-scenarios on the dynamics of the fishery; and (iii) participants feedback on the relevance of the model, on the possibility to detail the narrative scenario further...
Tipo: Text Palavras-chave: Geo-foresight; Participatory; Spatial; Complex quantitative; Model; ISIS-Fish; Scenarios; Fishery dynamics; Bay of Biscay.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00459/57034/69604.pdf
Registros recuperados: 4
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