description Chinese Mitten Crab Overview
The Chinese mitten crab is a medium-sized freshwater crustacean native to the coastal rivers and estuaries of East Asia, including China and Korea. It is easily distinguished by the dense patches of dark hair on its claws, which resemble mittens. The species is catadromous, meaning it migrates from freshwater rivers to the ocean to breed. It has become a highly invasive species in Europe and North America, where it burrows into riverbanks, causing significant ecological damage and erosion.
help Chinese Mitten Crab FAQ
How did the Chinese mitten crab get its name?
The Chinese mitten crab is easily distinguished by the dense patches of dark, bristly hair covering its claws, which resemble furry mittens. This highly invasive freshwater crustacean is native to the coastal estuaries and rivers of East Asia.
Why is the Chinese mitten crab a problem in Europe?
The Chinese mitten crab has a destructive impact on European river ecosystems because it burrows into riverbanks, causing severe erosion and damaging flood defenses. As a highly invasive species, it outcompetes native wildlife for food and habitat.
How big do Chinese mitten crabs get?
Unlike the massive Japanese spider crab, the Chinese mitten crab is relatively small, with its carapace (shell) usually reaching only about 3 inches (8 centimeters) across. However, their legs can give them an overall body width of up to 12 inches (30 centimeters).
What do Chinese mitten crabs eat?
Chinese mitten crabs are opportunistic omnivores that eat a wide variety of aquatic plants, invertebrates, and detritus. Their varied diet allows them to thrive and rapidly multiply in the foreign river systems they invade.
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