A demonstration test of low-salinity closed-loop land-based aquaculture and saline-water aquaponics has begun at Takamatsu Airport. The project aims to produce shrimp and hydroponic vegetables simultaneously while testing a resource-circulation model based on converting food waste into insect feed.
Taisei Corporation, working with 株式会社プラントフォーム, has begun a demonstration test at Takamatsu Airport of low-salinity closed-loop land-based aquaculture and aquaponics. The aim is to expand demonstration cases for saline-water aquaponics, which have so far been limited in Japan.
This demonstration test is the first stage of a regional resource-circulation model based on technology for converting food waste into feed through insect farming. On the premise of recycling food waste and other waste into resources, the project aims to establish a system for farming whiteleg shrimp using feed containing insects.
By combining aquaculture and aquaponics, the project will test the productivity of hydroponic vegetables under low-salinity conditions and the potential to improve the stability and added value of closed-loop land-based aquaculture, while seeking to reduce water-treatment costs and minimize environmental impact.
The demonstration will involve 2 tests, with the whiteleg shrimp and hydroponically grown vegetables produced through the project scheduled to be sampled and evaluated at restaurants inside Takamatsu Airport. The project will use a Fisheries Agency open-call demonstration program grant.