Editing Crayfish (section)

== Invasive pest ==

In several countries, particularly in Europe, native species of crayfish are under threat by imported species, particularly the signal crayfish (''[[Pacifastacus leniusculus]]'').<ref>{{Cite web |url = https://blog.invasive-species.org/2019/12/19/invading-europes-waterways-the-crayfish-occupation/ |title = Invading Europe's waterways: The crayfish occupation |date = 19 December 2019 }}</ref><ref>{{Cite web |url = https://theconversation.com/invasive-species-why-britain-cant-eat-its-way-out-of-its-crayfish-problem-147961 |title = Invasive species: Why Britain can't eat its way out of its crayfish problem |date = 13 October 2020 }}</ref> Crayfish are also considered an invasive predatory species, endangering native European species such as the [[Italian agile frog]] and the [[Discoglossus pictus|painted frog]] in [[Malta]].<ref>{{Cite web |date=2024-10-15 |title=4,500 crayfish removed from Chadwick Lakes in two years |url=https://timesofmalta.com/article/4500-crayfish-removed-chadwick-lakes-two-years.1099556 |access-date=2024-10-15 |website=Times of Malta |language=en-gb}}</ref>