Press Release

November 22 , 2013

Incorporated Administrative Agency, Fisheries Research Agency

Success in the artificial production of juveniles of Black throat sea perch (Doederleinia berycoides), a popular and important fish in the Sea of Japan

  • Success in the artificial production of juveniles of Black throat sea perch by developing techniques ranging from egg collection to juvenile production.
  • Development of aquaculture techniques and application to resource management is expected by understanding characteristics of the fish such as the process of growth and development to adult fish.

Black throat sea perch (Doederleinia berycoides) is a white-meat fish that tastes like fatty flesh of tuna and is popular not only in the Sea of Japan but also nationwide. Although research on aquaculture techniques to maintain the resource of the fish has been performed for several years, it has been extremely difficult to artificially produce its juveniles because the ecology of its larva and juvenile have remained elusive.

The joint research efforts of the following three institutes, Japan Sea National Fisheries Research Institute of Fisheries Research Agency (FRA), Fisheries Research Institute of Toyama Prefectural Agricultural, Forestry & Fisheries Research Center, and Niigata City Aquarium “Marinepia Nihonkai,” elucidated the fundamental culture conditions in rearing larval and juvenile stages, thus succeeding in rearing black throat sea perch up to the juvenile stage for the first time, and dramatically improving rearing techniques after hatching.

In the future, elucidation of the characteristics of the fish such as the growth process to adult fish, and the development of aquaculture techniques and application to resource management is expected by understanding culture conditions from the juvenile stage to the adult fish stage and developing a method for mass producing juveniles.



Picture: Adult fish of black throat sea perch (Total length: about 30 cm) (left) and 46-day-old juvenile after hatching (Total length: 17 mm) (right)