Data/hora: 02/06/2024 17:36:14

Provedor de dados: 	Institutional Archive of Ifreme (ArchiMer)	
País: 	France	
Título: 	Études méthodologiques développées à l'échelle nationale. Livrable 1 – Confiance et précision pour l'indicateur M-AMBI	
Autores: 	Brun, Mélanie.	
Data: 	2016-03	
Ano: 	2016	
Palavras-chave: 	M-AMBI; Richesse; Indice de Shannon-Weaver; AMBI; Analyse factorielle; Directive Cadre sur l’Eau; Contrôles de surveillance 2007 et 2010; Standardisation; Bootstrap; Invertébrés benthiques; Manche-Atlantique; M-AMBI; Richness; Shannon-Weaver index; AMBI; Factor analysis; Water Framework Directive; Monitoring 2007 and 2010; Standardization; Bootstrap; Benthic invertebrates; Channel-Atlantic coast.	
Resumo: 	The index used by France to assess the quality of coastal water bodies of the Water Framework Directive (WFD), for the Channel-Atlantic coast and for the quality element "soft substratum benthic invertebrates" is the M-AMBI. In their work, Sigovini et al. (2013) compare several methods of calculating M-AMBI and alternative indices with the values of M-AMBI. Their results show strong correlations between the values of the M-AMBI and those of the proposed alternatives. In a first step, the present work aims to compare M-AMBI values, obtained during the application of the assessment procedure of the quality of coastal water bodies for the Channel-Atlantic coast on the 2007 and 2010 data, with the values obtained for various alternative calculations and indices, similarly to the work of Sigovini et al. (2013). Under the WFD, each indicator must be assorted by confidence and precision measurements. In a second step, the present work aims to assess the bootstrap approach to move towards the development of a calculation of confidence and precision for the quality element "soft substratum benthic invertebrates". This study confirms that several alternatives to M-AMBI are possible without causing major changes in the index values. The various alternatives have advantages and a choice have to be made among them.	
Tipo: 	Text	
Idioma: 	Francês	
Identificador: 	http://archimer.ifremer.fr/doc/00333/44394/44025.pdf

http://archimer.ifremer.fr/doc/00333/44394/	
Formato: 	application/pdf	
Fonte: 	2016 Ifremer, ONEMA

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