SEAFDEC/AQD Southeast Asian Fisheries Development Center | Aquaculture Department
Japanese aquaculture experts Takeru Iida and Dr. Yukinori Kazeto presented oyster farming trends and eel breeding technologies during a seminar hosted by SEAFDEC/AQD on 17 March 2026.
Iida of the Fisheries Agency of Japan discussed oyster aquaculture in Japan, including production status, farming methods, and industry challenges.
He noted that oysters remain a key aquaculture commodity, with Hiroshima Prefecture leading production due to its favorable environment. He also outlined major issues such as rising water temperatures, climate change, and labor shortages, as well as countermeasures such as deep-suspension techniques, predator control, and shell recycling.
Dr. Kazeto of the Japan Fisheries Research and Education Agency presented advances in the artificial reproduction of Japanese eel.
He explained the use of recombinant follicle-stimulating hormone (rFsh) and luteinizing hormone (rLh) to induce maturation in captive eels, which do not naturally develop mature gonads.
His study showed that rFsh enhances egg production in females, while rLh effectively promotes sperm development in males, improving the reliability of seed production.
