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Environmental Engineering Techniques to Restore Degraded Posidonia oceanica Meadows
Article

Performance Assessment of Posidonia oceanica (L.) Delile Restoration Experiment on Dead matte Twelve Years after Planting—Structural and Functional Meadow Features

1
Department of Earth and Marine Science (DiSTeM), University of Palermo, Viale delle Scienze Ed. 16, 90128 Palermo, Italy
2
Biosurvey S.r.l., Academic Spin-Off University of Palermo, c/o ARCA, Viale delle Scienze Ed. 16, 90128 Palermo, Italy
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Department Energy and Utilities, Bureau of Water and Waste—Regione Siciliana, Viale Campania 36, 90144 Palermo, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Rui Cortes
Water 2021, 13(5), 724; https://doi.org/10.3390/w13050724
Received: 1 February 2021 / Revised: 1 March 2021 / Accepted: 3 March 2021 / Published: 7 March 2021
(This article belongs to the Special Issue Restore Degraded Marine Coastal Areas in the Mediterranean Sea)
Following the restoration of natural conditions by reducing human pressures, reforestation is currently considered a possible option to accelerate the recovery of seagrass habitats. Long-term monitoring programs theoretically represent an ideal solution to assess whether a reforestation plan has produced the desired results. Here, we report on the performance of a 20 m2 patch of Posidonia oceanica transplanted on dead matte twelve years after transplantation in the Gulf of Palermo, northwestern Sicily. Photo mosaic performed in the area allowed us to detect 23 transplanted patches of both regular and irregular shape, ranging from 0.1 to 2.7 m2 and an overall surface close to 19 m2. Meadow density was 331.6 ± 17.7 shoot m−2 (currently five times higher than the initial value of 66 shoots m−2), and it did not show statistical differences from a close by natural meadow (331.2 ± 14.9). Total primary production, estimated by lepidochronology, varied from 333.0 to 332.7 g dw m2/year, at the transplanted and natural stand, respectively. These results suggest that complete restoration of P. oceanica on dead matte is possible in a relatively short time (a decade), thus representing a good starting point for upscaling the recovery of the degraded meadows in the area. View Full-Text
Keywords: Posidonia oceanica; seagrass transplantation; dead matte; carbon stock; long-term monitoring; seabed mapping; habitat recovery Posidonia oceanica; seagrass transplantation; dead matte; carbon stock; long-term monitoring; seabed mapping; habitat recovery
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MDPI and ACS Style

Calvo, S.; Calvo, R.; Luzzu, F.; Raimondi, V.; Assenzo, M.; Cassetti, F.P.; Tomasello, A. Performance Assessment of Posidonia oceanica (L.) Delile Restoration Experiment on Dead matte Twelve Years after Planting—Structural and Functional Meadow Features. Water 2021, 13, 724. https://doi.org/10.3390/w13050724

AMA Style

Calvo S, Calvo R, Luzzu F, Raimondi V, Assenzo M, Cassetti FP, Tomasello A. Performance Assessment of Posidonia oceanica (L.) Delile Restoration Experiment on Dead matte Twelve Years after Planting—Structural and Functional Meadow Features. Water. 2021; 13(5):724. https://doi.org/10.3390/w13050724

Chicago/Turabian Style

Calvo, Sebastiano; Calvo, Roberta; Luzzu, Filippo; Raimondi, Vincenzo; Assenzo, Mauro; Cassetti, Federica P.; Tomasello, Agostino. 2021. "Performance Assessment of Posidonia oceanica (L.) Delile Restoration Experiment on Dead matte Twelve Years after Planting—Structural and Functional Meadow Features" Water 13, no. 5: 724. https://doi.org/10.3390/w13050724

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