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Fisheries Agency Identifies Spawning Spots, Time of Pacific Bluefin Tuna

May 20, 2014

It became known that spawning spots of Pacific bluefin tuna were located around the southwest of the Yaeyama Islands, the adjacent to the Miyako Islands, the southern shore of the mainland Okinawa, as well as a stretch from the Oki Islands to the Noto Peninsula in the Japan Sea. The first two areas can be found in the southwest of the mainland Okinawa. This is the result of a three-year research conducted from 2011 by the Fisheries Agency and local governments.

Pacific bluefin begin spawning late April in such areas as the western part of the Yaeyama Islands and the eastern part of the mainland Okinawa. Further extending their spawning locations, they keep procreating until early July in the areas stretching from the Yaeyama Islands to the mainland Okinawa. On the other hand, in the Sea of Japan, they start laying eggs late June on the shore of the Wakasa Bay and in July in the waters of the Oki Islands to the Noto Peninsula.

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