FN Archimer Export Format PT J TI 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 BT AF GOBERT, Sylvie SARTORETTO, Stephane RICO-RAIMONDINO, Valerie ANDRAL, Bruno CHERY, Aurelia LEJEUNE, Pierre BOISSERY, Pierre AS 1:1;2:2;3:3;4:2;5:4;6:4;7:5; FF 1:;2:PDG-DOP-LER-LERPAC;3:;4:PDG-DOP-LER-LERPAC;5:;6:;7:; C1 Univ Liege, MARE Ctr, Lab Oceanol, B-4000 Liege, Belgium. IFREMER, F-83500 La Seyne Sur Mer, France. Reg Provence Alpes Cote dAzur Serv Mer, F-13481 Marseille, France. STARESO, F-20260 Calvi, France. Agence Eau Rhone Mediterranee Corse, F-13001 Marseille, France. C2 UNIV LIEGE, BELGIUM IFREMER, FRANCE REGION PACA, FRANCE STARESO, FRANCE AGENCE EAU RHONE MEDITERRANEE CORSE, FRANCE SI TOULON SE PDG-DOP-LER-LERPAC IN WOS Ifremer jusqu'en 2018 copubli-france copubli-europe IF 2.63 TC 95 UR https://archimer.ifremer.fr/doc/2009/publication-6949.pdf LA English DT Article CR DCE 2-1 DCE 2-2 BO L'Europe DE ;Water Frame Directive;Ecological Quality Ratio;Coastal water;Mediterranean Sea;Posidonia oceanica;Seagrass AB 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. PY 2009 PD NOV SO Marine Pollution Bulletin SN 0025-326X PU Elsevier VL 58 IS 11 UT 000271847500028 BP 1727 EP 1733 DI 10.1016/j.marpolbul.2009.06.012 ID 6949 ER EF