The National Academy of Fisheries Science is investigating the habitat of bluefin trout in the West Sea using 'Bio-logging' technology. This involves attaching a small recorder to the trout to record water depth and temperature. The Academy has released 10 bluefin redfish with electronic labels and previously released 1,068 trout with conventional markers to recover the trout population. The Ministry of Oceans and Fisheries and the Aquarium have been promoting an aquatic resource recovery project since 2007, managing bluefin trout as a target species for the total allowable catch, with the stock recovering to 2,054 tons as of 2020.