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Natural Hazards

Archives / 2019 / January

Another (surprising) brick in the wall: how seagrass protects coastlines against erosion.

Another (surprising) brick in the wall:  how seagrass protects coastlines against erosion.

Dear readers, today our blog will host Marco Fusi, a postdoctoral fellow working on coastal ecosystems. Together with Marco we will give a twist to our usual geoscientific perspective and mix some ecology in it. Specifically, we will explore the surprising role of seagrass in limiting coastal erosion effects.

Marco Fusi is a Post-Doctoral Researcher at KAUST (Saudi Arabia), since 2014. He graduated at University of Milan (Italy) with a Ph.D. in tropical ecology. His primary interest focuses on ecological connectivity and interactions in coastal ecosystems.

1- Hello Marco, please give us an overview of coastal erosion issues.

When we speak about coasts, we think about beautiful mangrove forests or a dream tropical coastline that harbours beautiful crystal water where to dive in the middle of coral reefs. However, we tend to forget that coasts are inhabited by almost 3 billion of people all over the world and hundreds of kilometres of coastline are heavily constructed. Cities, resorts, villages are expanding along the coast worldwide and often, the risk of coastal erosion is not considered. In the lasts decades, inland anthropogenic management resulted in a limited input of sediment to the sea and therefore the marine current started to erode beaches and rocky shore resulting sometimes in dramatical destruction of buildings.

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