Even in Nagasaki, pearl-cultured pearl oysters die Multiple merchants are damaged September 5 21:56

In Ehime Prefecture and Mie Prefecture, the mass death of pearl oysters used for pearl farming has become a problem, and even in Nagasaki Prefecture where pearl production is thriving, pearl oysters who are dying in the same way have been found in multiple aquaculture companies I understood that the fishery cooperative started to grasp the actual situation of damage.

The pearl oyster is a shell used to grow pearls, and mass death is a problem in Ehime and Mie prefectures.

According to the pearl farming fishery cooperatives, etc., made by many aquaculture companies in Nagasaki Prefecture, several aquaculture companies in Akasaki Prefecture and Mie Prefecture found the pearl oysters who are dying in the same way as in Ehime Prefecture and Mie Prefecture last month. It was.

The dead pearl oysters were found to have shrunk shells called “gaitou membrane”, and about 1 cm of larvae were found with the shells lost.

According to the aquaculture traders in the prefecture, there are traders that about 70% of young shellfish under one year died, while others are not damaged.

In response to this report, the fishery cooperative will hold a temporary council meeting to gather aquaculture farmers in the near future to determine the actual state of damage to the pearl oysters.

Nagasaki Prefecture is also investigating the cause by sending samples of damaged pearl oysters to national research institutions.

According to the prefecture, the production of pearls in Nagasaki Prefecture in 2016 was about 7 tons, the second largest nationwide.

Fishery cooperative head "responding to the actual situation of damage"

The head of the Nagasaki Prefecture Pearl Culture and Fishery Association Tetsuya Fujita reported on NHK's report, “We have received reports of damage to the pearl oysters throughout the prefecture. The damage is recovering, and I think it is not as large as Ehime and Mie. However, I would like to take action after accurately grasping the actual situation of the damage so as not to cause confusion. "