description Korean Mitten Crab Overview
The Korean mitten crab is a catadromous crustacean native to the freshwater river systems of the Korean Peninsula. Like other mitten crabs, it is distinguished by the dense patches of hair-like setae on its claws, which resemble mittens. Adults live in freshwater habitats but must migrate down to estuarine or marine environments to reproduce, with larvae developing in saltwater before migrating back upstream. This species is considered edible and is also studied as an ecologically significant member of East Asian river ecosystems.
help Korean Mitten Crab FAQ
What is unusual about the Korean mitten crab's life cycle?
The Korean mitten crab is catadromous, meaning adults live in freshwater but migrate toward the sea to reproduce. Its life cycle therefore connects Korean rivers with coastal and marine habitats.
Why is it called a mitten crab?
The crab has dense patches of hair-like setae on its claws. Those setae resemble the fuzzy surface of mittens and give the group its common name.
Where does the Korean mitten crab live?
It is native to freshwater river systems on the Korean Peninsula. Adults occupy rivers and related freshwater habitats before making their breeding migration.
Does the Korean mitten crab stay in freshwater for its entire life?
No. Adults live in freshwater, but the species is catadromous and moves toward marine or coastal water for reproduction. That migration is a defining part of its biology.
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