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	Provedor de dados ArchiMer (3) Autor Fromentin, Jean-marc (3) Bonhommeau, Sylvain (2) Kell, Laurence T (2) Palavra-chave Bluefin (3) Albacore (1) Catch curve analysis (1) Growth (1) Length (1) Management Strategy Evaluation (1) Migration patterns (1) Mortality (1) North Atlantic Oscillation (1) Recruitment (1) Robustness (1) Spatially disaggregated data (1) Stock structure (1) Swordfish (1) Time series (1) VPA (1) Mais... Tipo do documento Text (3) Ano 2013 (1) 2012 (1) 2002 (1) País France (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Length based catch analysis for east Atlantic Mediterranean bluefin tuna ArchiMer Kell, Laurence T; Bonhommeau, Sylvain; Fromentin, Jean-marc. Although the bluefin assessment is based on catch-at-age data, ageing using hard parts is an expensive and d{fficult process. Therefore length data are converted into age for bluefin using a growth curve, i.e. age slicing. Where age is predicted from length using the inverse of the von Bertalanffy growth curve. Here we show how a simple method based on length data alone can be used to estimate population parameters such as total mortality (Z). Tipo: Text Palavras-chave: Bluefin; Catch curve analysis; Growth; Length; Mortality. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00191/30274/28734.pdf Is the recruitment a key biological process in the hypothetical NAO-Atlantic tunas relationships? ArchiMer Fromentin, Jean-marc. In the recent past, it has been put forward that recruitment of the North Atlantic albacore, East Atlantic bluefin tuna and North Atlantic swordfish could be related to the North AtlanticOscillation (NAO). In this document, the biological processes behind the NAO/recruitmentrelationship are further investigated. Then, the possible relationship between the East Atlanticbluefin tuna recruitment was re-investigated. The linear relationship appeared to be only due to the low frequency signal, both BFT recruitment and NAO displaying a pseudo-cyclic upwardtrend, but year-to-year fluctuations were not synchronous. The superposed epoch analysis, thatwas conducted to test for possible non-linear and non-monotonous relationship did not reveal any clear connection.... Tipo: Text Palavras-chave: North Atlantic Oscillation; Recruitment; Bluefin; Albacore; Swordfish; Migration patterns; Time series; Spatially disaggregated data. Ano: 2002 URL: http://archimer.ifremer.fr/doc/00194/30498/28908.pdf An evaluation of the implications of population structure on the current bluefin tuna advice framework ArchiMer Kell, Laurence T; Fromentin, Jean-marc; Bonhommeau, Sylvain. The objectives of the comprehensive ICCAT Atlantic-Wide Research Programme on Bluefin Tuna (GBYP) are to improve data collection, knowledge of key biological and ecological processes, assessment models and management. An important element of which is to develop a robust advice framework consistent with the Precautionary Approach. The current advice framework, which is based upon Virtual Population Analysis, demonstrates how a Management Strategy Evaluation (MSE) framework can be used to evaluate the robustness of management advice to uncertainty about stock structure. Tipo: Text Palavras-chave: Bluefin; Management Strategy Evaluation; Robustness; Stock structure; VPA. Ano: 2012 URL: http://archimer.ifremer.fr/doc/00192/30277/28740.pdf Registros recuperados: 3 Primeira ... 1 ... Última

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