March 6, 2017 — At the 14th annual Seafood Show Osaka, held 22 to 23 February at ATC Hall, the Japan Fisheries Research and Education Agency operated a booth highlighting its work in closed-cycle breeding of Japanese eel.
Osamu Tamaru, a researcher at the research Center for Fisheries System Engineering, of the National Research Institute of Fisheries Engineering, said that his group has achieved survival rates of 10 percent, but estimates that this figure needs to be doubled to be commercially viable. Asked what the difficult point was, he said, “The feed, the tank, everything…”
That is to say, it often hard to discover the cause of mortality. However, as commercialization of closed-cycle breeding of bluefin tuna is advancing in Japan, there is hope that pressure on threatened eel populations can be relieved through the research.