A company headquartered in Aichi Prefecture has announced plans for the second phase of its land-based trout salmon aquaculture project. The company will expand the number of tanks from five to seven and plans to ship 40 to 60 tons in the second phase, roughly double the volume of the previous phase.
The project utilizes cold seawater generated during the production process of liquefied natural gas (LNG), which is used as a raw material for city gas, and operates a flow-through land-based aquaculture system that makes use of existing intake and discharge facilities. To enable summer supply of salmon, a cold-water species, four refrigeration units were installed last summer, and demonstration trials were conducted assuming overwintering conditions. Seawater at around 30°C was cooled to below 20°C, suitable for growth, and by extending part of the rearing period, approximately one ton was shipped between September and October.
Following the positive results of these trials, the company plans to conduct small-scale shipments of about one ton again from August to October this year in the second phase, while carefully monitoring growth conditions. Products from the first phase were mainly distributed for local consumption and were well received for their light, clean taste and ease of eating. Going forward, the company aims to build a track record to ensure a stable supply of fresh salmon and plans to expand summer shipments over the medium to long term.
Year-round stable supply through land-based aquaculture is expected to help revitalize the salmon market.
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