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Council of State (Raad van State)
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Invasive crayfish spread and conservation in Europe
4 clusters · 14 sources · last updated
Latest: Invasive signal crayfish threaten UK native species
In late July 2026, Dutch authorities confirmed the detection of a ninth invasive river‑crayfish species, the calicotrivierkreeft, through e‑DNA testing, prompting a government‑led working group to assess control measures