Mass production of pearl oysters from pearl farming
In Ehime and Mie prefectures, the pearl oysters used for pearl farming have died in large numbers. ) Will be handled exceptionally.
According to Ehime and Mie prefectures, a large number of pearl oysters were found dead in July from Uwajima City to Ainan Town in Ehime Prefecture and Ago Bay in Shima City, Mie Prefecture.
The cause is unknown, and there are aquaculture farmers in Ehime Prefecture where about 80% of all larvae that had been raised died, and the prefecture is investigating the actual state of damage.
In Ehime Prefecture, the production volume of mother shells for making pearls with core cores occupies nearly 90% of the nation, and there are concerns about the impact on future production.
For this reason, Uwajima City's fishery cooperatives, which sell juveniles to aquaculture companies, have decided an unusual policy to increase production of juveniles that are usually shipped in the spring once a year.
If the juveniles that were successfully hatched by artificial mating at the facilities in the city last month went smoothly, it will grow to about 2 mm in diameter in the middle of next month and can be provided to the contractor.
Mr. Noriyoshi Matsuda, Director of the Shimojo Fishery Cooperative Pearl Shell Research Institute in Uwajima City, said, “The first priority is to increase the number of juveniles and we want to deal with what we can do now.”