News Release

Kunisaki Oysters Now Available in the Market

December 2, 2015
Yanmar Co., Ltd.

Kunisaki Oyster
Oyster farming

In collaboration with Oita Fisheries Cooperative Association, Yanmar will begin shipment of its top-of-the-range oysters in December of this year. Marketed as Kunisaki Oysters, after the city in Japan where they are cultivated, they are expected to receive high acclaim as a regional delicacy. They are generating a lot of interest, not only for their mouth-watering attributes, but also for the unprecedented on land bivalve seedling production techniques employed-Single Seed Oyster Cultivation* and Tide and Deep**.

In 2003, Yanmar began selling feed for bivalves followed by the development of its very own bivalve cultivation technology. Since 2011, Yanmar has continued to undertake research relating to single seed oyster cultivation, leading to new discoveries in the field. The Kunisaki Oysters are more flavorful and are best when eaten raw. Future plans involved sales expansion in Japan and into the international markets.

At Yanmar’s bivalve farming facility, Yanmar Marine Farm, they are able to greatly reduce cultivation lead-time, for a much more rapid supply of oysters, in a highly efficient integrated system. Hoping to be recognized as a gourmet food produced in Oita, the prefecture where Kunisaki is situated, Yanmar’s innovatory solutions will play a part in revitalizing the local fisheries industry.

In 2013, in collaboration with the Kunisaki Fisheries Cooperative, Yanmar utilized a fish pond (previously used for Japanese tiger prawn farming) for carrying out research, and successfully developed the Tide and Deep method, an ultra-efficient cultivation practice. Since 2014, Yanmar has been expanding its research areas in and around Kunisaki, farming from the egg phase all the way up until maturity. Using this opportunity as a starting point, the Yanmar Group hopes to breathe life into other fisheries, in a continued effort to find the right solutions for the challenges that people face.

Yanmar’s Involvement

  • Supply single seed oyster seedlings
  • Provide an extremely efficient, integrated oyster cultivation system
  • Strategic branding and promotion as a prized delicacy

Core Aim

  • Be instrumental in bringing about the change from a fisheries industry that relies on harvesting wild populations to one that cultivates its own safe stock, boosting profitability at regional fisheries
  • Oyster farming has a low environmental impact and as it doesn’t require feed, it is also low cost. Because of these reasons, it is a viable solution for sustainable farming into the future.

Future Aim

  • Play an integral role in the cultivation and sales of Kunisaki Oysters. The mid-term aim is to cultivate several million oysters annually.
  • *Single-Seed Oyster Cultivation: A farming practice in which oysters are separated from each other from birth until harvesting. This produces deeper shells that result in fleshier oysters.
  • **Tide and Deep: By farming oysters in their natural intertidal habitat, using suspended baskets that facilitate faster growth rates, Yanmar’s practices allow for the production of high quality single-seed oysters in a reduced time period.

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Public Relations Group
Brand Communication Division, Yanmar Co., Ltd.

  • Note: Information contained in the news release is valid at the time of publication and may differ from the most recently available information.