Invasive seaweed Rugulopteryx okamurae threatens Thau lagoon near Marseille

The invasive seaweed Rugulopteryx okamurae, introduced through shellfish farming, is proliferating in the Thau lagoon near Marseille.

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The fact

This species, which is odorous and invasive, threatens ecological balance and local oyster farming activities.

Authorities are studying solutions to contain the spread and preserve coastal ecosystems.

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Auto-synthesis from 1 media source · identified on June 6, 2026