Consulta: subjectFacets:"Channel-Atlantic coast"
Registros recuperados: 3
Data/hora: 06/06/2024 05:40:45

Études méthodologiques développées à l'échelle nationale. Livrable 1 – Confiance et précision pour l'indicateur M-AMBI
Provedor de dados: 5
Autores: Brun, Mélanie.
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...
Tipo: Text
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.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00333/44394/44025.pdf

Domaine d’application et validation des grilles d’évaluation de la qualité des masses d’eau côtières et de transition élaborées dans le cadre de la DCE. Elément de qualité biologique «macroalgues opportunistes»
Provedor de dados: 5
Autores: Rossi, Nadège.
In the context of the WFD, the assessment of the coastal water bodies and transition is required from different biological parameters including opportunistic macroalgae. This implies on the one hand the development of appropriate methods and the other hand controlling that the environmental quality is established in connection with an identified pressure. This assessment is currently based on monitoring of opportunistic green macroalgae. Nevertheless, massive developments of other algae, including Pylaiella littoralis and Gracilaria sp. may be involved in some water bodies. Given all these information, the study shows:  - The three tools for assessing the ecological quality of water bodies set up in response to the three types of green tides identified on...
Tipo: Text
Palavras-chave: Directive Cadre sur l’Eau; Macroalgues opportunistes; Façade Manche-Atlantique; Ulva sp.; Pylaiella littoralis; Gracilaria sp.; Relation pression-impact; Water Framework directive; Opportunistic macroalgae; Channel-Atlantic coast; Ulva sp.; Pylaiella littoralis; Gracilaria sp.; Pressure-impact relationship.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00398/50904/51676.pdf

Définition d’un indice composition pour le phytoplancton en Manche- Atlantique, à partir des données du micro-phytoplancton du REPHY et des réseaux régionaux, et des mesures complémentaires de la flore phytoplanctonique acquises avec des techniques novatrices. Action 3 – Livrable 1. Propositions pour un indice de composition du phytoplancton, basé sur les résultats des méthodes microscopie, pigments et diversité génétique. Rapport final, février 2016
Provedor de dados: 5
Autores: Hernandez Farinas, Tania; Brun, Melanie; Siano, Raffaele; Delmas, Daniel.
This deliverable is composed of two reports which propose indice of phytoplankton composition, based respectively on the results of pigment and genetic diversity methods, and the results of microscopy method. Proposals based on the results of pigment and genetic diversity methods. The present work is a continuation of several studies carried out in the past (Siano and Delmas, 2013, 2015) on investigating an indicator of phytoplankton diversity using two methods complementary to optical microscopy: the genetic diversity analyzed with metabarcoding (exhaustive analysis of the diversity and relative abundance of OTUs, i.e. groups of sequences identified by their genetic resemblance) and the pigmentary diversity (analysis of the diversity and abundance of...
Tipo: Text
Palavras-chave: Metabarcoding; OTUs; Pigments; Picophytoplancton; Indice composition; Niche ecologique; Mamiellophyceae; Chlorophylle b; Rade de Brest; Bretagne sud; Panache de la Gironde; Denombrements du micro-phytoplancton; Abondance totale; Monotonicite; Linearite; Pressions; Facade Manche-Atlantique; Metabarcoding; OTUs; Pigments; Picophytoplankton; Composition indice; Ecological niche; Mamiellophyceae; Chlorophyll b; Brest Bay; Southern Britain; Gironde plume; Micro-phytoplankton counts; Total abundance; Monotonicity; Linearity; Pressure; Channel-Atlantic coast.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00363/47421/47426.pdf