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	Provedor de dados ArchiMer (5) Autor Beaugrand, Gregory (5) Fromentin, Jean-marc (2) Goberville, Eric (2) Hattab, Tarek (2) Leroy, Boris (2) Reygondeau, Gabriel (2) Araignous, Emma (1) Ben Rais Lasram, Frida (1) Bonhommeau, Sylvain (1) Bourdaud, Pierre (1) Champagnat, Juliette (1) Cury, Philippe (1) Dauvin, Jean-claude (1) Faillettaz, Robin (1) Fonteneau, Alain (1) Francour, Patrice (1) Grangeré, Karine (1) Halouani, Ghassen (1) Haraldsson, Matilda (1) Kirby, Richard R. (1) Mais... Palavra-chave Biogeochemical provinces (1) Climate change (1) Ecological niche (1) Ecological niche model (1) Exclusive economic zone (1) Global ocean (1) Istiophorus (1) Katsuwonus (1) Longline fisheries (1) Macroecology (1) Makaira (1) Marine biogeography (1) Migration (1) Range shift (1) Species distribution models (1) Synergistic effects (1) Tetrapturus (1) Thunnus (1) Thunnus thynnus (1) Time series (1) Mais... Tipo do documento Text (5) Ano 2021 (1) 2019 (2) 2014 (1) 2012 (1) País France (5) Idioma Inglês (4) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 5 Primeira ... 1 ... Última Atlantic Multidecadal Oscillations drive the basin-scale distribution of Atlantic bluefin tuna ArchiMer Faillettaz, Robin; Beaugrand, Gregory; Goberville, Eric; Kirby, Richard R.. The Atlantic bluefin tuna (hereafter referred to as "bluefin tuna"), one of the world's most valuable and exploited fish species, has been declining in abundance throughout the Atlantic from the 1960s until the mid-2000s. Following the establishment of drastic management measures, the stock has started to recover recently and, as a result, stakeholders have raised catch quotas by 50% for the period 2017-2020. However, stock assessments still omit the natural, long-term variability in the species distribution. Here, we explore the century-scale fluctuations in bluefin tuna abundance and distribution to demonstrate a prevailing influence of the Atlantic Multidecadal Oscillation (AMO) to provide new insights into both the collapse of the Nordic bluefin tuna... Tipo: Text Ano: 2019 URL: https://archimer.ifremer.fr/doc/00634/74616/74551.pdf Biogeography of tuna and billfish communities ArchiMer Reygondeau, Gabriel; Maury, Olivier; Beaugrand, Gregory; Fromentin, Jean-marc; Fonteneau, Alain; Cury, Philippe. Aim The aims of this study were: (1) to identify global communities of tuna and billfish species through quantitative statistical analyses of global fisheries data; (2) to describe the spatial distribution, main environmental drivers and species composition of each community detected; and (3) to determine whether the spatial distribution of each community could be linked to the environmental conditions that affect lower trophic levels by comparing the partitions identified in this study with Longhursts biogeochemical provinces. Location The global ocean from 60 degrees S to 65 degrees N. Methods We implemented a new numerical procedure based on a hierarchical clustering method and a nonparametric probabilistic test to divide the oceanic biosphere into... Tipo: Text Palavras-chave: Biogeochemical provinces; Global ocean; Istiophorus; Katsuwonus; Macroecology; Makaira; Marine biogeography; Tetrapturus; Thunnus; Xiphias. Ano: 2012 URL: http://archimer.ifremer.fr/doc/00060/17141/14716.pdf European small pelagic fish distribution under global change scenarios ArchiMer Schickele, Alexandre; Goberville, Eric; Leroy, Boris; Beaugrand, Gregory; Hattab, Tarek; Francour, Patrice; Raybaud, Virginie. The spectre of increasing impacts on exploited fish stocks in consequence of warmer climate conditions has become a major concern over the last decades. It is now imperative to improve the way we project the effects of future climate warming on fisheries. While estimating future climate‐induced changes in fish distribution is an important contribution to sustainable resource management, the impacts on European small pelagic fish—representing over 50% of the landings in the Mediterranean and Black Sea between 2000 and 2013—are yet largely understudied. Here, we investigated potential changes in the spatial distribution of seven of the most harvested small pelagic fish species in Europe under several climate change scenarios over the 21st century. For each... Tipo: Text Palavras-chave: Climate change; Ecological niche; Exclusive economic zone; Range shift; Species distribution models; Uncertainties. Ano: 2021 URL: https://archimer.ifremer.fr/doc/00656/76801/77966.pdf Oceanographic changes and exploitation drive the spatio-temporal dynamics of Atlantic bluefin tuna (Thunnus thynnus) ArchiMer Fromentin, Jean-marc; Reygondeau, Gabriel; Bonhommeau, Sylvain; Beaugrand, Gregory. Atlantic bluefin tuna (ABFT) has always displayed spectacular changes in its spatial distribution, but the underlying mechanism of such variations still remains obscure. This study focuses on this challenging issue by scrutinizing the intriguing ‘Brazilian episode’ during which a large quantity of ABFT (a temperate species) was caught during the 1960s in the equatorial Atlantic. To investigate this event, we applied a niche model to an extensive data set of catch and environmental variables from 1960 to 2009. ABFT exhibited a remarkably large ecological niche, which matches well with our current knowledge of ABFT. Our results also depicted a high probability of ABFT occurrence in the South Atlantic and, more interestingly, favorable environmental... Tipo: Text Palavras-chave: Ecological niche model; Longline fisheries; Migration; Synergistic effects; Thunnus thynnus; Time series. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00164/27540/25819.pdf Recommandations pour une approche écosystémique des aires d’implantation d’énergies marines renouvelables. Cas d’étude du parc éolien offshore de Courseulles-sur-mer ArchiMer Araignous, Emma; Beaugrand, Gregory; Ben Rais Lasram, Frida; Bourdaud, Pierre; Champagnat, Juliette; Dauvin, Jean-claude; Grangeré, Karine; Halouani, Ghassen; Haraldsson, Matilda; Hattab, Tarek; Le Loch, Francois; Leroy, Boris; Lejart, Morgane; Niquil, Nathalie; Nogues, Quintin; Pagot, J.-p.; Raoux, Aurore; Safi, Georges; Villanueva, Ching-maria. Les études d’impact environnemental menées en amont des projets éoliens offshores considèrent chaque compartiment de manière individuelle, et non pas l’écosystème dans son ensemble. La compréhension des liens trophiques et l’appréhension de l’écosystème de manière holistique est pourtant un enjeu important rapporté par les politiques publiques telles que la Directive Cadre Stratégie pour le Milieu Marin (Directive 2008/56/EC). Le projet collaboratif TROPHIK (ANR-10-IEED-0006-12) pose les bases d’une approche écosystémique des Energies Marines Renouvelables (EMR) destinée à permettre une démarche holistique et intégrée avant installation de parcs éoliens en mer. Cette approche s’appuie sur un cas d’étude français, le site du futur parc éolien au large de... Tipo: Text Ano: 2019 URL: https://archimer.ifremer.fr/doc/00511/62273/66478.pdf Registros recuperados: 5 Primeira ... 1 ... Última

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