Skip to main content.

Ministry of Agriculture, Forestry and Fisheries

Character Size

Product Summary (Registration No.23)

Registration No.23 十三湖産大和しじみ

Registered name (Transcription) : 十三湖産大和しじみ (Jusanko san Yamato Shijimi)、Jusankosan Yamato Shijimi
Reference information : Jusanko Freshwater Clam
Jusankosan Yamato Shijimi photo

Category of Product

Class 11 Shellfish (Freshwater Clam)

Production Area

Goshogawara City (including Jusanko Lake), Tsugaru City, and Nakadomari Town in Kitatsugaru County, all in Aomori Prefecture

Registered Group

Jusan Fisheries Cooperative, Shariki Fisheries Cooperative


Jusankosan Yamato Shijimi is a Yamato shijimi (Freshwater clam; Corbicula japonica) caught in the brackish-water Jusanko Lake. It is suitable for soup broth as it produces rich flavor and umami taste. The production area provides stable supply of freshwater clam throughout a year and its quality is highly valued by the market.

Link with the Production Area

The Jusanko lake is a leading site in the nation for collecting freshwater clam. The production of “Jusankosan Yamato Shijimi” has started at least from the Meiji Period (about 130 years ago). The stable catch of the freshwater clam is possible due to operators’ continuous effort of resource management.


Intellectual Property Division, Food Industry Affairs Bureau,
Ministry of Agriculture, Forestry and Fisheries
1-2-1 Kasumigaseki, Chiyoda-ku, Tokyo 100-8950, Japan
Tel: +81-3-6738-6315 / +81-3-6744-2062
Fax: +81-3-3502-5301