Search Results - "Gascuel, D."

Modelling dynamic ecosystems: venturing beyond boundaries with the Ecopath approach by Coll, M., Akoglu, E., Arreguín-Sánchez, F., Fulton, E. A., Gascuel, D., Heymans, J. J., Libralato, S., Mackinson, S., Palomera, I., Piroddi, C., Shannon, L. J., Steenbeek, J., Villasante, S., Christensen, V.

“…Thirty years of progress using the Ecopath with Ecosim (EwE) approach in different fields such as ecosystem impacts of fishing and climate change, emergent…”
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Overfishing of marine resources: some lessons from the assessment of demersal stocks off Mauritania by Meissa, B., Gascuel, D.

“…Abstract The recent, rapid development of fishing in Mauritania offers a good case study for a comparative approach of the resilience of the species exploited…”
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Bottom-up control regulates fisheries production at the scale of eco-regions in European seas by Chassot, Emmanuel, Mélin, Frédéric, Le Pape, Olivier, Gascuel, Didier

“…We used primary productivity data derived from remote sensing images and catch data for the period 1998 to 2004 to characterize the productivity of eco-regions…”
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Estimates of the mortality and the duration of the trans-Atlantic migration of European eel Anguilla anguilla leptocephali using a particle tracking model by Bonhommeau, S., Le Pape, O., Gascuel, D., Blanke, B., Tréguier, A.-M., Grima, N., Vermard, Y., Castonguay, M., Rivot, E.

“…Using Lagrangian simulations, based on circulation models over three different hydroclimatic periods in the last 45 years in the North Atlantic Ocean, the…”
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Including foraging arena and top-down controls improves the modeling of trophic flows and fishing impacts in aquatic food webs by Colléter, M., Walters, C. J., Gatti, P., Gascuel, D.

“…Food web dynamics consist of processes that affect ecosystem structure and functioning. EcoTroph (ET) is a recently developed approach and software for…”
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Trophic level-based indicators to track fishing impacts across marine ecosystems by Shannon, Lynne, Coll, Marta, Bundy, Alida, Gascuel, Didier, Heymans, Johanna J., Kleisner, Kristin, Lynam, Christopher P., Piroddi, Chiara, Tam, Jorge, Travers-Trolet, Morgane, Shin, Yunne

“…Trophic level (TL)-based indicators have been widely used to examine fishing impacts in aquatic ecosystems and the induced biodiversity changes. However, much…”
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Towards the implementation of an integrated ecosystem fleet-based management of European fisheries by Gascuel, D., Merino, G., Döring, R., Druon, J.N., Goti, L., Guénette, S., Macher, C., Soma, K., Travers-Trolet, M., Mackinson, S.

“…Using the Celtic Sea and the North Sea as case studies, the fleet-based approach is shown to be the pathway to implement an effective ecosystem approach to…”
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Assessing stocks in data-poor African fisheries: a case study on the white grouper Epinephelus aeneus of Mauritania by Meissa, B, Gascuel, D, Rivot, E

“…The lack of reliable stock assessment for numerous exploited stocks in West Africa often results from poor-quality data, high multi-specificity of captures,…”
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Structure and functioning of the Bay of Biscay ecosystem: A trophic modelling approach by Corrales, X., Preciado, I., Gascuel, D., Lopez de Gamiz-Zearra, A., Hernvann, P.-Y., Mugerza, E., Louzao, M., Velasco, F., Doray, M., López-López, L., Carrera, P., Cotano, U., Andonegi, E.

“…Characterizing the structure and functioning of marine ecosystems requires a deep understanding of the dynamics of its populations and the biotic interactions…”
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Global assessment of the fishing impacts on the Southern Benguela ecosystem using an EcoTroph modelling approach by Gasche, L., Gascuel, D., Shannon, L., Shin, Y.-J.

“…`We show that the EcoTroph model based on trophic spectra is an efficient tool to build ecosystem diagnoses of the impact of fishing. Using the Southern…”
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EcoTroph: Modelling marine ecosystem functioning and impact of fishing by Gascuel, Didier, Pauly, Daniel

“…EcoTroph (ET) is a model articulated around the idea that the functioning of aquatic ecosystems may be viewed as a biomass flow moving from lower to higher…”
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Ecological indicators to capture the effects of fishing on biodiversity and conservation status of marine ecosystems by Coll, M., Shannon, L.J., Kleisner, K.M., Juan-Jordá, M.J., Bundy, A., Akoglu, A.G., Banaru, D., Boldt, J.L., Borges, M.F., Cook, A., Diallo, I., Fu, C., Fox, C., Gascuel, D., Gurney, L.J., Hattab, T., Heymans, J.J., Jouffre, D., Knight, B.R., Kucukavsar, S., Large, S.I., Lynam, C., Machias, A., Marshall, K.N., Masski, H., Ojaveer, H., Piroddi, C., Tam, J., Thiao, D., Thiaw, M., Torres, M.A., Travers-Trolet, M., Tsagarakis, K., Tuck, I., van der Meeren, G.I., Yemane, D., Zador, S.G., Shin, Y.-J.

“…•We selected indicators to capture biodiversity and conservation risks in marine exploited ecosystems.•We assessed if they provided useful additional…”
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Investigating trophic-level variability in Celtic Sea fish predators by Chassot, E., Rouyer, T., Trenkel, V. M., Gascuel, D.

“…The trophic level (TL) mean and variance, and the degree of omnivory for five Celtic Sea fish predators were estimated using a database of stomach content…”
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Modeling trophic interactions to assess the effects of a marine protected area: case study in the NW Mediterranean Sea by Valls, Audrey, Gascuel, Didier, Guénette, Sylvie, Francour, Patrice

“…The present study describes the food web and evaluates the effects of a marine protected area (MPA), the Port-Cros National Park (NW Mediterranean Sea), on the…”
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Modelling the effects of fishing on the biomass of the world’s oceans from 1950 to 2006 by Tremblay-Boyer, Laura, Gascuel, Didier, Watson, Reg, Christensen, Villy, Pauly, Daniel

“…Marine fisheries have endured for centuries but the last 50 yr have seen a drastic increase in their reach and intensity. We generated global estimates of…”
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Balancing complexity and feasibility in Mediterranean coastal food-web models: uncertainty and constraints by Prato, Giulia, Gascuel, Didier, Valls, Audrey, Francour, Patrice

“…Mass-balance trophic models (Ecopath and EcoTroph) are valuable tools that can be used to describe ecosystem structure and functioning, identify target species…”
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A future for marine fisheries in Europe (Manifesto of the Association Française d’Halieumétrie) by Gascuel, D., Bez, N., Forest, A., Guillotreau, P., Laloë, F., Lobry, J., Mahévas, S., Mesnil, B., Rivot, E., Rochette, S., Trenkel, V.

“…► To ensure the sustainable development of European Fisheries, radical changes are required. ► We define what truly implementing the ecosystem approach to…”
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Analysing environmental and fishing effects on a short-lived species stock: the dynamics of the octopus Octopus vulgaris population in Senegalese waters by Thiaw, M, Gascuel, D, Thiao, D, Thiaw, O T, Jouffre, D

“…Short-lived species are extremely dependent on the seasonal and interannual variability of environmental conditions, and determining their stock status is…”
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Decline of demersal resources in North-West Africa: an analysis of Mauritanian trawl-survey data over the past 25 years by Gascuel, D, Labrosse, P, Meissa, B, Taleb Sidi, MO, Guénette, S

“…Mauritania is characterised by fast-growing fisheries that have developed over the past decades. Since 1982, scientific trawl surveys have been conducted…”
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The trophic spectrum: theory and application as an ecosystem indicator by Gascuel, Didier, Bozec, Yves-Marie, Chassot, Emmanuel, Colomb, Audrey, Laurans, Martial

“…Trophic spectra represent the distribution of biomass, abundance, or catch by trophic level, and may be used as indicators of the trophic structure and…”
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