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	Provedor de dados ArchiMer (2) Autor Auger, Pierre (2) Brehmer, Patrice (1) Brochier, Timothee (1) Jouffre, Didier (1) Ly, Sidy (1) Nguyen-ngoc, Doanh (1) Nguyen-phuong, Thuy (1) Nguyen-trong, Hieu (1) Trinh, Viet Duoc (1) Mais... Palavra-chave Aggregation of variables (1) Competition (1) Density-dependent migration (1) Density-independent migration (1) Fisheries management (1) Fishing pressure (1) ODE (1) Pelagic (1) Refuge (1) Shared fish stock (1) West Africa (1) Mais... Tipo do documento Text (2) Ano 2018 (1) 2016 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Can Fishing Pressure Invert the Outcome of Interspecific Competition? The Case of the Thiof and of the Octopus Along the Senegalese Coast ArchiMer Nguyen-phuong, Thuy; Nguyen-ngoc, Doanh; Auger, Pierre; Ly, Sidy; Jouffre, Didier. We present a mathematical model of two competing marine species that are harvested. We consider three models according to different levels of complexity, without and with species refuge and density-independent and density-dependent species movement between fishing area and refuge. We particularly study the effects of the fishing pressure on the outcome of the competition. We focus on conditions that allow an inferior competitor to invade as a result of fishing pressure. The model is discussed in relationship to the case of the thiof and the octopus along the Atlantic West African coast. At the origin, the thiof was abundant and the octopus scarce in that region. Since, the fishing pressure has strongly increased in some fishing areas leading to the... Tipo: Text Palavras-chave: Competition; Refuge; Density-dependent migration; Density-independent migration; Fishing pressure. Ano: 2016 URL: https://archimer.ifremer.fr/doc/00625/73744/74499.pdf Competition or cooperation in transboundary fish stocks management: Insight from a dynamical model ArchiMer Nguyen-trong, Hieu; Brochier, Timothee; Auger, Pierre; Trinh, Viet Duoc; Brehmer, Patrice. An idealized system of a shared fish stock associated with different exclusive economic zones (EEZ) is modelled. Parameters were estimated for the case of the small pelagic fisheries shared between Southern Morocco, Mauritania and the Senegambia. Two models of fishing effort distribution were explored. The first one considers independent national fisheries in each EEZ, with a cost per unit of fishing effort that depends on local fishery policy. The second one considers the case of a fully cooperative fishery performed by an international fleet freely moving across the borders. Both models are based on a set of six ordinary differential equations describing the time evolution of the fish biomass and the fishing effort. We take advantage of the two time... Tipo: Text Palavras-chave: Shared fish stock; Aggregation of variables; ODE; Pelagic; Fisheries management; West Africa. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00442/55310/72108.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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