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<p>For the first time, a coastal vulnerability index is calculated at a regional level for the Greek coasts with a focus on the coastal protection ecosystem service provided by natural habitats, through the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) coastal vulnerability model. The examined species is the <i>Posidonia oceanica</i> seagrass. <i>Posidonia</i> meadows are broadly acknowledged to act as a Nature-Based Solution (NBS) for coastal protection, especially when conserved or restored, since they may reduce the wave action and sediment transport in coastal areas and, thus, contribute to coastal erosion risk mitigation. This is particularly important for the study area, as a large portion of the Greek coastline is considered vulnerable and also favorable for the growth of seagrasses, suggesting the potential adoption of sustainable measures for coastal protection. The results indicate that the majority of Greek coasts can possibly benefit from the improved coastal protection afforded by <i>Posidonia oceanica</i> meadows. Emphasis is given to the coastal sites where the provided service is more likely to be efficient, due to favorable local conditions and seagrass meadows spatial extent. These sites include locations in the Zakynthos, Limnos, Milos and Kos islands, and Kassandra Peninsula. The present work meets the global initiative for seagrass protection and restoration, while its provided evidence can be used for prioritizing actions in relative scientific programs as well as for future research in coastal zones, which are highly recommended in order to implement NBSs in realistic terms and support ecological engineering in Greece.</p>

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Seagrass shields: evaluating the role of Posidonia oceanica meadows in protecting the Greek coasts

  • 期刊论文

  • 发表日期：

    2025年12月19日

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  • Vyron Moraitis,
  • Dimitra I. Malliouri,
  • Dimitrios Vandarakis,
  • Paraskevi Drakopoulou,
  • Stelios Petrakis,
  • Ioannis P. Panagiotopoulos,
  • Vasilios Kapsimalis,
  • Serafeim Poulos,
  • Georgios-Angelos Hatiris

摘要

For the first time, a coastal vulnerability index is calculated at a regional level for the Greek coasts with a focus on the coastal protection ecosystem service provided by natural habitats, through the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) coastal vulnerability model. The examined species is the Posidonia oceanica seagrass. Posidonia meadows are broadly acknowledged to act as a Nature-Based Solution (NBS) for coastal protection, especially when conserved or restored, since they may reduce the wave action and sediment transport in coastal areas and, thus, contribute to coastal erosion risk mitigation. This is particularly important for the study area, as a large portion of the Greek coastline is considered vulnerable and also favorable for the growth of seagrasses, suggesting the potential adoption of sustainable measures for coastal protection. The results indicate that the majority of Greek coasts can possibly benefit from the improved coastal protection afforded by Posidonia oceanica meadows. Emphasis is given to the coastal sites where the provided service is more likely to be efficient, due to favorable local conditions and seagrass meadows spatial extent. These sites include locations in the Zakynthos, Limnos, Milos and Kos islands, and Kassandra Peninsula. The present work meets the global initiative for seagrass protection and restoration, while its provided evidence can be used for prioritizing actions in relative scientific programs as well as for future research in coastal zones, which are highly recommended in order to implement NBSs in realistic terms and support ecological engineering in Greece.