publication . Other literature type . 2014

Validation de l’indice composition IC Medit pour les eaux côtières de Corse et de la région PACA. Action 3. Indice Composition. Livrable n° B. Rapport final, juillet 2014.

Goffart, Anne; Andral, Bruno;
Open Access French
  • Published: 01 Jul 2014
  • Country: France
Abstract
The aim of this study is to show the current status of the development and use of the new IC Medit phytoplankton composition index as a sub-metric within the phytoplankton quality element in assessing phytoplankton quality in Mediterranean coastal waters. IC Medit uses pigment concentrations determined by HPLC for assessing phytoplankton composition. Focusing on coastal waters of Corsica, we (i) described the seasonal succession of the main phytoplankton groups in reference conditions, (ii) studied responses of phytoplankton groups to well identified drivers, (iii) assessed the shift of the seasonal succession of phytoplankton groups from the reference condition...
Subjects
Medical Subject Headings: fungi
free text keywords: Phytoplancton, indicateur de composition, pigments, IC Medit, relations pressions / impacts, conditions de référence, Méditerranée, Corse, DCE, Phytoplankton, indicator of community composition, pressure impact relationships, reference conditions, Mediterranean Sea, Corsica, Water Framework Directive
Communities
EuroMarine
European Marine Science

2 Matériel et méthodes ................................................................................................................ 4 2.1 Sites de référence et acquisition de données .................................................................... 4 2.1.1 Corse .......................................................................................................... 4 2.1.2 Région PACA ................................................................................................ 6 2.2 Prélèvements et analyses .............................................................................................. 6 2.3 Chémotaxonomie : avantages et limitations ..................................................................... 6

3 Résultats et discussion.............................................................................................................10 3.1 Variabilité de la composition phytoplanctonique entre sites non impactés ............................10 3.2 Exemples de réponses des communautés phytoplanctoniques aux forces de pression............11 3.3 Relations pigments - pressions ......................................................................................15 3.4 Evolution de l'indice IC Medit ............................................................................................17 3.4.1 Rappel de l'indice 2010 .................................................................................17 3.4.2 Pigments retenus et courbes de référence .......................................................17 3.4.3 L'indice IC Medit en pratique : positionnement des mesures et seuils......................18 3.4.4 Résumé de l'évolution de l'indice ....................................................................20

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