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Directive Cadre sur l’Eau : les pressions anthropiques et leur impact sur les indicateurs de l’état écologique des masses d’eau littorales de la façade Manche-Atlantique. Synthèse bibliographique
Provedor de dados: 5
Autores: Buchet, Rémi.
Within the European water framework directive (WFD), the status assessment of littoral waters is based both on the chemical quality and on the ecological quality of each water body. Quality elements enabling to assess the ecological status of a water body are, among other things, biological quality elements (phytoplankton, macroalgae, angiosperms, benthic invertebrates, fish), for each of which the member states have developed quantitative indicators. This document is one of the deliverables of a multi-annual study intended to characterize the sensitivity of these biological indicators towards the various anthropogenic pressures exerted on the French Atlantic and Channel coast: ultimately, the goal is to establish a quantitative and predictive...
Tipo: Text
Palavras-chave: DCE; Manche-Atlantique; Élément de qualité biologique; Indicateur; Métrique; DPSIR; Pressions anthropiques; Forçages naturels; Impact; WFD; Atlantic and Channel coastline; Biological quality element; Indicator; Metric; DPSIR; Anthropogenic pressures; Natural constraints; Impact.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00346/45721/45350.pdf

Directive Cadre sur l’Eau : les pressions anthropiques et leur impact sur les indicateurs de l’état écologique des masses d’eau littorales de la façade Manche-Atlantique - Développement d’une base de données quantitatives sur les pressions anthropiques littorales
Provedor de dados: 5
Autores: Buchet, Rémi; Guegan, Cécile.
Within the European water framework directive (WFD), the status assessment of littoral waters is based both on the chemical quality and on the ecological quality of each water body. Quality elements enabling to assess the ecological status of a water body are, among other things, biological quality elements (phytoplankton, macroalgae, angiosperms, benthic invertebrates, fish), for each of which member states have developed quantitative indicators. This document compiles three deliverables of a multi-annual study intended to characterize the sensitivity of these biological indicators regarding the various anthropogenic pressures exerted on the French Atlantic and Channel coast: ultimately, the goal is to establish a quantitative and predictive relationship,...
Tipo: Text
Palavras-chave: DCE; Manche-Atlantique; Élément de qualité biologique; Indicateur; Métrique; DPSIR; Pressions anthropiques; Base de données; Forçages naturels; Impact; WFD; Atlantic and Channel coastline; Biological quality element; Indicator; Metric; DPSIR; Anthropogenic pressures; Database; Natural constraints; Impact.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00346/45723/45351.pdf

Assessment of the ecological status of coastal areas and estuaries in France, using multiple fish-based indicators: a comparative analysis on the Vilaine estuary
Provedor de dados: 5
Autores: Brind'Amour, Anik; Lobry, Jeremy.
When reviewing the various fish-based community indicators aiming at assessing the ecological status of marine communities and/or ecosystems, a typology consisting of three major components emerges. The first component highlights the choice of relevant metrics associated with a level of organization (e. g. population or community). The second relies on the method used to combine the metrics (an aggregated indicator or a synoptic table). The third refers to the type of analysis (direct or indirect) that is used to establish the link between the metrics and a given pressure. In this paper we use the Vilaine coastal-estuarine fish communities as a case study to discuss and relate two different approaches to the suggested typology. The first approach...
Tipo: Text
Palavras-chave: Coastal ecosystems; Fish communities; Indicators; Integrated approaches; Metric; Typology of fish indicators.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00000/11174/7532.pdf

Utilisation de la vidéo Haute Définition pour étudier la distribution spatiale de la biodiversité lagonaire de Pouebo, Nouvelle Calédonie
Provedor de dados: 5
Autores: Witkowski, Fanny.
Coral reefs are among the most diversified ecosystems; structured by comlexe processese. Yet, spatial organization of the diversity of reef fish communities is not well known. The present study, covering the Marine Protected Area of Pouebo (North-East of New Caledonia), takes part of the AMBIO project from IFREMER, which studies spatio-temporal variations of biodiversity by means of High-definition rotatif underwater video systems. In total 1717 individuals from 25 taxonomic families, 56 genus and 145 species were observed. The derived habitat typology of stations distinguishes five habitat classes, which seem to be highly significant for fish species richness and fish density. Results show that biodiversity increases close to the intermediate and the...
Tipo: Text
Palavras-chave: Vidéo sous-marine; Biodiversité et ressources lagunaires; Suivi; Indicateur; Métriques; Site Patrimoine Mondiale UNESCO; Variabilité spatiale; Underwater video; Biodiversity and lagoon resources; Monitoring; Indicator; Metric; UNESCO World Heritage Site; Spatial variability.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00250/36089/34640.pdf