Assessment of the ecological status of Mediterranean French coastal waters as required by the Water Framework Directive using the Posidonia oceanica Rapid Easy Index: PREI

Type Article
Date 2009-11
Language English
Author(s) Gobert Sylvie1, Sartoretto StephaneORCID2, Rico-Raimondino Valerie3, Andral Bruno2, Chery Aurelia4, Lejeune Pierre4, Boissery Pierre5
Affiliation(s) 1 : Univ Liege, MARE Ctr, Lab Oceanol, B-4000 Liege, Belgium.
2 : IFREMER, F-83500 La Seyne Sur Mer, France.
3 : Reg Provence Alpes Cote dAzur Serv Mer, F-13481 Marseille, France.
4 : STARESO, F-20260 Calvi, France.
5 : Agence Eau Rhone Mediterranee Corse, F-13001 Marseille, France.
Source Marine Pollution Bulletin (0025-326X) (Elsevier), 2009-11 , Vol. 58 , N. 11 , P. 1727-1733
DOI 10.1016/j.marpolbul.2009.06.012
WOS© Times Cited 77
Keyword(s) Water Frame Directive, Ecological Quality Ratio, Coastal water, Mediterranean Sea, Posidonia oceanica, Seagrass
Abstract This paper describes the PREI (Posidonia oceanica Rapid Easy Index), a method used to assess the ecological status of seawater along Mediterranean French coasts. The PREI was drawn up according to the requirements of the Water Framework Directive (WFD 2000/60/EC) and was tested on 24 and 18 stations in PACA (Provence-Alpes-Cotes d'Azur) and Corsica, respectively. The PREI is based on five metrics: shoot density, shoot leaf surface area, E/L ratio (epiphytic biomass/leaf biomass), depth of lower limit, and type of this lower limit. The 42 studied stations were classified in the first four levels of status: high, good, moderate and poor. The PREI values ranged between 0.280 and 0.847; this classification is in accordance with our field knowledge and with our knowledge of the literature. The PREI was validated regarding human pressure levels (r(2)=0.74). (http://eurex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2000: 327:0001:0072:EN:PDF). (C) 2009 Elsevier Ltd. All rights reserved.
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Gobert Sylvie, Sartoretto Stephane, Rico-Raimondino Valerie, Andral Bruno, Chery Aurelia, Lejeune Pierre, Boissery Pierre (2009). Assessment of the ecological status of Mediterranean French coastal waters as required by the Water Framework Directive using the Posidonia oceanica Rapid Easy Index: PREI. Marine Pollution Bulletin, 58(11), 1727-1733. Publisher's official version : https://doi.org/10.1016/j.marpolbul.2009.06.012 , Open Access version : https://archimer.ifremer.fr/doc/00000/6949/