ARK-V1 (two from the right) and REF-V1 (one from the left) installed and operated at the University of the Ryukyus

Shizuoka Gas to trial land-based aquaculture of luxury fish such as grouper

JAPAN
Monday, July 01, 2024, 12:00 (GMT + 9)

Shizuoka Gas Co., Ltd. (President and CEO: Matsumoto Naotake) will begin a trial of land-based aquaculture at the Shizuoka Gas Shizuoka Branch (Ikeda, Suruga Ward, Shizuoka City) using a small, decentralized, closed circulation land-based aquaculture system . This will be the first time that this system has been introduced in Shizuoka Prefecture.

Land-based aquaculture facilities equipped with this system will be installed in September 2024, and the breeding environment will be prepared. Cultivation of yellowtail grouper and sea grapes will begin in November, with shipment scheduled for around summer 2025. Through this trial, the company will explore local needs and the possibility of future business expansion, including supplying the products to local supermarkets and restaurants.

ARK-V1, a small, decentralized, closed circulation land-based aquaculture facility. A land-based aquaculture system provided by ARK Co., Ltd. No complicated construction or installation is required, and it can be installed in a space of about 10m2 

The Yaito grouper, known as a high-class fish that lives in warm waters, is widely used in restaurants across Japan, the West and China, but is rarely available in Shizuoka Prefecture. As it does not migrate and lives on rocks on the seabed, it is well suited to aquaculture in a small area like this system.

There are concerns that in the future, a "protein crisis" will occur in which the demand for protein will exceed supply due to factors such as global population growth, and it is, therefore, urgent to create an environment in which food rich in protein can be consumed safely and cheaply. Compared to marine aquaculture, in which seafood is grown in fish cages in the ocean, land-based aquaculture has the advantage that it is easier to control the rearing environment, including water temperature, oxygen concentration, and pH value. In addition, this system is a closed circulation system in which water is filtered, sterilized, circulated, and reused. There is little risk of parasites and pathogens, and it is possible to produce seafood safely and stably while reducing the use of water resources and the burden on the environment.

The Shizuoka Gas Group aims to develop next-generation food-related businesses and will continue to work to solve food issues in the local community.

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