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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
Gobert, S.; Sartoretto, S.; Rico-Raimondino, V.; Andral, B.; Chery, A.; Lejeune, P.; Boissery, P. (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. Mar. Pollut. Bull. 58(11): 1727-1733. dx.doi.org/10.1016/j.marpolbul.2009.06.012
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363
|  |
| Trefwoorden |
Posidonia oceanica (Linnaeus) Delile, 1813 [WoRMS]
Marien/Kust |
| Author keywords |
Seagrass; Posidonia oceanica; Mediterranean Sea; Coastal water; |
| Auteurs | | Top |
- Gobert, S.
- Sartoretto, S.
- Rico-Raimondino, V.
- Andral, B.
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- Chery, A.
- Lejeune, P.
- Boissery, P.
|
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| 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 (r2=0.74). (http://eurex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2000: 327:0001:0072:EN:PDF). |
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