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	Provedor de dados ArchiMer (1) Autor Rochet, Marie-joelle (1) Trenkel, Verena (1) Palavra-chave Assessment (1) Composite test (1) Fisheries management (1) Metrics (1) Time trend (1) Tipo do documento Text (1) Ano 2009 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Intersection-union tests for characterising recent changes in smoothed indicator time series ArchiMer Trenkel, Verena; Rochet, Marie-joelle. Using indicator time series for assessment and management requires methods for characterising recent time trends. We propose an approach where first the indicator time series is smoothed using a generalised additive model with optimal selection of the degree of smoothness. Second an intersection-union test is carried out using two test statistics which are the occurrence of the global maximum (or minimum) within the most recent years and the signs of the estimated annual first derivatives of the smoothed indicator times series during the same period, including years with missing data. The proposed test is applied to fish abundance indices for the North Sea, for which it is they are able to pick up changes happening during the last 3-5 years in contrast to... Tipo: Text Palavras-chave: Composite test; Assessment; Fisheries management; Metrics; Time trend. Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6234.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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