Question 16025 — sea and coastline

Summary

Mr. Philippe Fait draws the attention of the Minister Delegate to the Minister for Ecological Transition, Biodiversity and International Negotiations on Climate and Nature, responsible for the sea and fisheries, to the impact of the extraction of marine aggregates. While we note an acceleration of erosion on several coastal frontages, certain local observations and scientific studies suggest a link with the extractions of aggregates, which modify the sedimentary dynamics of the seabed. These samples, sometimes carried out close to the coasts, could contribute to weakening the shores: in fact, when the seabed is dug, it loses its natural balance and can end up collapsing, leading to an increased retreat of the coastline. At the same time, artisanal fishermen, whose activity is strictly regulated and based on a sustainable exploitation of the resource, are often accused of “looting the sea”. This discrepancy raises questions while the impacts of other industrial activities, such as the extraction of aggregates, are much less questioned despite their potential effects on marine ecosystems and biodiversity. He asks whether precise impact studies have been carried out in order to assess the real share of aggregate extractions in the phenomenon of coastal erosion and whether the Government plans to strengthen their supervision, in order to guarantee their compatibility with the objectives of protecting the coastline, fishery resources and marine habitats.

Machine translation from French. The official text remains authoritative.

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