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	Provedor de dados ArchiMer (22) Autor Gascuel, Didier (22) Travers-trolet, Morgane (5) Vermard, Youen (4) Coll, Marta (3) Hernvann, Pierre-yves (3) Jouffre, Didier (3) Mahevas, Stephanie (3) Marchal, Paul (3) Piroddi, Chiara (3) Bundy, Alida (2) Fox, Clive (2) Gasche, Loic (2) Guenette, Sylvie (2) Lehuta, Sigrid (2) Lobry, Jeremy (2) Macher, Claire (2) Meissa, Beyah (2) Nielsen, J. Rasmus (2) Robert, Marianne (2) Shannon, Lynne (2) Mais... Palavra-chave Celtic Sea (3) EcoTroph (3) Fishing impact (3) Trophic level (3) Climate change (2) Ecopath (2) Ecopath with Ecosim (2) Ecosystem modeling (2) Ecosystem modelling (2) Fisheries management (2) Indicator (2) Anguilla anguilla (1) Bay of Biscay (1) Bayesian Hierarchical Models (1) Bayesian approach (1) Bio-economic models (1) Bioeconomic model (1) Biomass production model (1) Bottom trawl survey (1) Bottom-up (1) Mais... Tipo do documento Text (22) Ano 2021 (1) 2020 (5) 2018 (3) 2017 (1) 2016 (2) 2015 (1) 2014 (1) 2013 (1) 2012 (3) 2010 (2) 2001 (1) 1982 (1) Mais... País France (22) Idioma Inglês (20) Francês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 22 Primeira ... 1 2 ... Última Exploring the impacts of fishing and environment on the Celtic Sea ecosystem since 1950 ArchiMer Hernvann, Pierre-yves; Gascuel, Didier. Analyzing the long-term changes in ecosystems and disentangling the influence of overfishing and environment require historical data integration. Fisheries-independent data are available only since the mid-1980s in the Celtic Sea and thus provide a short-term and truncated vision of fishing impacts. We conducted a catch-based study over the 1950–2015 period. We successively (i) reconstituted catch time-series, including unreported catch estimates, and studied them through a trophic-spectrum approach and ecosystem indicators based on trophic level, size and species diversity; (ii) estimated biomass trends of the main Celtic Sea target species from catch and effort time-series, using production models that detect potential shifts in productivity; and (iii)... Tipo: Text Palavras-chave: Fishing impact; Celtic Sea; Catch reconstruction; Biomass production model; Ecosystem regime shifts; Trophic cascade; Fish productivity. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00600/71241/73090.pdf Combining fleet dynamics and population dynamics for a volatile fishery: the example of the anchovy fishery of the Bay of Biscay ArchiMer Vermard, Youen; Lehuta, Sigrid; Mahevas, Stephanie; Thebaud, Olivier; Marchal, Paul; Gascuel, Didier. It is increasingly recognized that fisher‟s behavior should be taken into account to understand and predict fishery dynamics, in particular in response to management. ISIS-Fish is a spatially and seasonally explicit modeling framework especially designed to couple populations and fleets dynamics and explore the impact of various management measures on mixed fisheries. It has already been set up using a static fishing effort allocation (corresponding to an average historical pattern) between the various métiers to simulate the pelagic fishery in the Bay of Biscay. We present here the integration of a fleet dynamics model. This model is derived from a Random Utility Model simulating métiers choice using as explanatory variables the past value per unit... Tipo: Text Ano: 2012 URL: http://archimer.ifremer.fr/doc/00107/21858/19449.pdf Registros recuperados: 22 Primeira ... 1 2 ... Última

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