Tsugani (Japanese mitten crab) (River crab dishes)
A rich taste of the river and a beloved autumn specialty of Kochi

About Tsugani (Japanese mitten crab) (River crab dishes)

Tsugani, or Japanese mitten crab, thrives in the clear waters of Kochi’s Shimanto and Niyodo rivers. A prized local ingredient and a relative of the Shanghai hairy crab, it has its own distinctive flavor and culinary traditions. Tsugani is in season in autumn, when the crabs migrate downstream to spawn and the fishing season reaches its peak. Its rich roe and juicy meat have long delighted chefs and food lovers.

One of Kochi’s best-known local dishes is tsugani-jiru, a hearty soup made by crushing live crabs to make a broth, then adding ingredients such as eggplant and ryukyu (a local taro stem). Using the whole crab, including the shell, gives the soup deep flavor and aroma. Other popular dishes include tsugani-meshi, rice cooked with the crab’s savory flavor, and tsugani-somen, somen noodles served with crab.

Tsugani has a long history as a home-cooked dish in Kochi. In recent years, however, declining catches and the effort involved in preparing it have made it less common in home kitchens. Local events and restaurants help keep the tradition alive by serving tsugani-jiru, while social media and commercial products are introducing the crab to people across Japan.

The appeal of tsugani dishes lies above all in the rich flavor of the crab’s roe. During the fishing season, August 1 to November 30, females preparing to spawn are especially prized for their rich flavor. In Kochi, ginger and soy sauce are often used to bring out the taste while complementing the distinctive aroma of river crab.

Tsugani, nurtured by Kochi’s natural environment, embodies both flavor and local tradition. It is a signature taste of autumn in Kochi.

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