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oapen-20.500.12657-561022022-06-02T03:22:14Z Chapter Monitoring of Posidonia oceanica meadows in the Sicilian coasts under the Water Framework Directive (WFD) Sirchia, Benedetto Ruvolo, Vincenzo Bellissimo, Giancarlo Ecological status Posidonia oceanica PREI Sicilian coast Water Framework Directive The present paper aims to assess for the first time the ecological status of the Sicilian water bodies using the PREI (Posidonia oceanica Rapid Easy Index) method according to the Water Framework Directive (WFD, 2000/60/EC) requirements. The PREI is based on five metrics: shoot density, shoot leaf surface area, E/L ratio, depth of lower limit, and type of this lower limit. Monitoring of the 29 P. oceanica meadows allowed to classify the 20 WBs of Sicilian coasts in the first two levels of status: 10 as “high” and 10 as “good” with the PREI values ranged between 0,551 and 1. 2022-06-01T12:13:39Z 2022-06-01T12:13:39Z 2020 chapter ONIX_20220601_9788855181471_285 2704-5846 9788855181471 https://library.oapen.org/handle/20.500.12657/56102 eng Proceedings e report application/pdf Attribution 4.0 International 14814.pdf https://books.fupress.com/doi/capitoli/978-88-5518-147-1_51 Firenze University Press 10.36253/978-88-5518-147-1.51 10.36253/978-88-5518-147-1.51 bf65d21a-78e5-4ba2-983a-dbfa90962870 9788855181471 126 9 Florence open access
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The present paper aims to assess for the first time the ecological status of the Sicilian water bodies using the PREI (Posidonia oceanica Rapid Easy Index) method according to the Water Framework Directive (WFD, 2000/60/EC) requirements. The PREI is based on five metrics: shoot density, shoot leaf surface area, E/L ratio, depth of lower limit, and type of this lower limit. Monitoring of the 29 P. oceanica meadows allowed to classify the 20 WBs of Sicilian coasts in the first two levels of status: 10 as “high” and 10 as “good” with the PREI values ranged between 0,551 and 1.
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