Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 6
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Responses of ecological indicators to fishing pressure under environmental change: exploring non-linearity and thresholds ArchiMer
Fu, Caihong; Xu, Yi; Grüss, Arnaud; Bundy, Alida; Shannon, Lynne; Heymans, Johanna J; Halouani, Ghassen; Akoglu, Ekin; Lynam, Christopher P; Coll, Marta; Fulton, Elizabeth A; Velez, Laure; Shin, Yunne-jai.
Marine ecosystems are influenced by multiple stressors in both linear and non-linear ways. Using generalized additive models (GAMs) fitted to outputs from a multi-ecosystem, multi-model simulation experiment, we investigated 14 major ecological indicators across ten marine ecosystems about their responses to fishing pressure under: (i) three different fishing strategies (focusing on low-, high-, or all-trophic-level taxa); and (ii) four different scenarios of directional or random primary productivity change, a proxy for environmental change. From this work, we draw four major conclusions: (i) responses of indicators to fishing mortality in shapes, directions, and thresholds depend on the fishing strategies considered; (ii) most of the indicators...
Tipo: Text
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00516/62749/67138.pdf
Imagem não selecionada

Imprime registro no formato completo
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
Imagem não selecionada

Imprime registro no formato completo
An end-to-end model to evaluate the sensitivity of ecosystem indicators to track fishing impacts ArchiMer
Halouani, Ghassen; Le Loc'H, François; Shin, Yunne-jai; Velez, Laure; Hattab, Tarek; Romdhane, Mohamed Salah; Ben Rais Lasram, Frida.
In order to assist fisheries managers, ecological indicators are needed to evaluate the effects of fishing activities on marine ecosystems and to improve communication of these effects in both public and scientific contexts. Finding appropriate indicators is challenging given the complexity of marine food webs as well as the ecosystem response to fishing pressure. In this study, an end-to-end model developed in the Gulf of Gabes ecosystem (Tunisia) was used to compare the performance of a set of ecosystem indicators in assessing the impact of fishing. This end-to-end model aimed to represent the ecosystem functioning by coupling two existing sub-models, the multispecies individual-based model OSMOSE, representing the dynamics of exploited species and the...
Tipo: Text Palavras-chave: Ecological indicators; OSMOSE; Ecosystem model; End-to-end model; Marine ecosystem; Fishing impacts; Fishery; Gulf of Gabes.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00464/57604/60172.pdf
Imagem não selecionada

Imprime registro no formato completo
Report on the Workshop ‘New Narratives for Nature: operationalizing the IPBES Nature Futures Scenarios’. February 2020, Shonan Village, Hayama, Japan ArchiMer
Machteld, Schoolenberg; Okayasu,, Sana; Krijgsman, Amanda; Dutra De Aguiar, Ana Paula; Hashimoto, Shizuka; Lundquist, Carolyn; Pereira, Laura; Peterson, Garry; Alkemade, Rob; Armenteras, Dolors; Cheung, William; Chimère Diaw, Mariteuw; Paz Durán, América; Gasalla, Maria; Halouani, Ghassen; Harrison, Paula; Karlsson-vinkhuyzen, Sylvia; Kim, Hyejin; Kuiper, Jan; Miller, Brian; Takahashi, Yasuo; Pichs, Ramón.
The workshop ‘New Narratives for Nature: operationalizing the IPBES Nature Futures Scenarios’ was organised by the IPBES task force on scenarios and models and hosted by the Institute for Global Environmental Strategies (IGES), with support from the research team on “Predicting and Assessing Natural Capital and Ecosystem Services through an Integrated Social-Ecological Systems Approach (PANCES)” based at the University of Tokyo, the Research Institute for Humanity and Nature (RIHN), and the United Nations University, with generous financial support from the Ministry of the Environment of Japan. Due to the COVID-19 virus outbreak, most task force members participated through virtual means, with a subset of task force members meeting in person in Japan. The...
Tipo: Text
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00663/77482/79212.pdf
Imagem não selecionada

Imprime registro no formato completo
Making ecological indicators management ready: Assessing the specificity, sensitivity, and threshold response of ecological indicators ArchiMer
Fu, Caihong; Xu, Yi; Bundy, Alida; Grüss, Arnaud; Coll, Marta; Heymans, Johanna J.; Fulton, Elizabeth A.; Shannon, Lynne; Halouani, Ghassen; Velez, Laure; Akoğlu, Ekin; Lynam, Christopher P.; Shin, Yunne-jai.
Moving toward ecosystem-based fisheries management (EBFM) necessitates a suite of ecological indicators that are responsive to fishing pressure, capable of tracking changes in the state of marine ecosystems, and related to management objectives. In this study, we employed the gradient forest method to assess the performance of 14 key ecological indicators in terms of specificity, sensitivity and the detection of thresholds for EBFM across ten marine ecosystems using four modelling frameworks (Ecopath with Ecosim, OSMOSE, Atlantis, and a multi-species size-spectrum model). Across seven of the ten ecosystems, high specificity to fishing pressure was found for most of the 14 indicators. The indicators biomass to fisheries catch ratio (B/C), mean lifespan and...
Tipo: Text Palavras-chave: Ecological modelling; Fishing pressure; Gradient forest method; Indictor performance; Marine ecosystem; Primary productivity.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00500/61148/64576.pdf
Imagem não selecionada

Imprime registro no formato completo
Report on the workshop ‘Global Modelling of Biodiversity and Ecosystem Services’. June 2019, the Hague, the Netherlands ArchiMer
Okayasu, Sana; Schoolenberg, Machteld; Alkemade, Rob; Den Belder, Eefje; Pereira, Henrique; Lundquist, Carolyn; Cheung, William; Rondinini, Carlo; Halouani, Ghassen; Hyejin, Kim; Miller, Brian; Hirsch, Tim; Abbasov, Rovshan; Arneth, Almut; Diaw, Mariteuw Chimè; Eddy, Tyler; Harfoot, Michael; Hasegawa, Tomoko; Hickler, Thomas; Hill, Samantha; Humpenöder, Florian; Johnson, Justin; Kok, Marcel; Leadley, Paul; Leclere, David; Navarro, Laetitia; Ohashi, Haruka; Peterson, Garry; Schipper, Aafke; Shin, Yunne-jai; Stehfest, Elke; Visconti, Piero; Van Vuuren, Detlef.
A three-day workshop on ‘Global Modelling of Biodiversity and Ecosystem Services’, was held in the Hague, Netherlands, from 24th to 26th June 2019. The workshop, attended by 35 modelling and scenario-building experts, was organised on behalf of the former IPBES1expert group on scenarios and models of the first IPBES work programme by its interim technical support unit, and hosted by the PBL Netherlands Environmental Assessment Agency. The workshop drew on the ‘nature futures’ participatory scenario-building exercise initiated by the IPBES expert group on scenarios and models, and other biodiversity modelling initiatives such as the ISIMIP project2 working on adding biodiversity to the Shared Socioeconomic Pathways (SSPs) scenarios framework, the 'bending...
Tipo: Text
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00663/77481/79211.pdf
Registros recuperados: 6
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional