Invasive Chinese mitten crab found in Danish fjord

The burrowing crab could cost Denmark millions of kroner

Lucie Rychla

Nov 26, 2015

The Chinese mitten crab, regarded as one of the world’s worst invasive species, has been found in the Karrebæk Fjord in southern Zealand, reports TV2.

The medium-sized crab with large, furry claws is feared worldwide due to its ability to damage fishing gear, destroy river banks and clog up drainage systems.

Change natural habitats
In Germany, mitten crabs have caused damage to dykes worth an estimated 600 million kroner.

By burrowing holes in river banks and blocking intake screens, the crab also changes natural habitats and endangers native species.

Clean water in fjord
The Danish nature agency has therefore advised local fishermen to kill the crabs or donate them to aquariums.

The presence of mitten crabs in the Karrebæk Fjord suggests an improved quality of water in the area.

Mitten crabs spend most of their lives in freshwater areas, but head to the sea to breed.

Delicacy in Asia
The species originates in eastern Asia, where it is considered a delicacy.

In Europe, it has been viewed with concern ever since the first recorded sighting in 1912.

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