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
|Author(s)||Gobert Sylvie1, Sartoretto Stephane2, 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|
|WOS© Times Cited||95|
|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.|