Data/hora: 03/06/2024 18:49:05

Provedor de dados: | 5
País: | France
Título: | Analyse des indicateurs en lien avec les caractéristiques démographiques des populations de poissons des façades métropolitaines françaises dans le cadre de la DCSMM
Autores: | Davies, Leo.
Data: | 2020-09
Ano: | 2020
Palavras-chave: | Directive Cadre Stratégie pour le Milieu Marin; Bon état écologique; Indicateur; Taille; Marine Strategic Framework Directive; Good Environmental Status; Indicator; Length.
Resumo: | The Marine strategy Framework Directive (MSFD) aims to reduce impacts on the marine environment in order to achieve or maintain the good ecological status by using ecosystem approach. The conservation of fish population, exploited or not, is one of the objectives. Criterion 3 of the Descriptor 1 „Biodiversity – Fish” and Descriptor 3 “Commercial species” must qualify the ecological state of these components with regard to their demographic characteristics, in addition to other primary criteria. Many size indicators exist, but in the absence of a threshold value to qualify a condition, this criterion was classified as non-operational in the previous assessment cycle. This study aims to analyze the relevance of size indicators for providing information on the ecological status of fish population or community from the EVHOE scientific campaign (1997-2019). The bay of Biscay and the Celtic Sea were stratified according to the size parameter of a selection of 45 species selected on abundance criteria and categorized according to their life history traits. The size indicators were calculated and interpreted against a theoretical cut-off or a twostep approach for the assessment of ecological indicators based on time series (time series-based assessment and benchmarking, TSBA). The analysis of the indicator for each group of species and each area made it possible to identify 5 complementary population indicators and 3 community indicators.
Tipo: | Text
Idioma: | Francês

Identificador:

https://archimer.ifremer.fr/doc/00655/76695/77841.pdf

https://archimer.ifremer.fr/doc/00655/76695/

Formato: | application/pdf

Fonte:

info:eu-repo/semantics/openAccess

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