Massive death of pearl oysters Is it due to high water temperature in winter? Mie survey September 13 20:37
Announcing the findings that Mie Prefecture may have led to massive deaths due to the high temperature of water in winter, etc. due to the massive death of pearl oysters used in pearl farming in Ago Bay, Shima City, Mie Prefecture.
In Mie Prefecture, the mass death of pearl oysters used for pearl farming is a problem in Ago Bay, Shima City. A survey of the prefecture revealed that at least 2 million shellfish were dead.
In response, Mie Prefecture investigated the relationship between the massive death of pearl oysters and sea conditions such as water temperature, and announced the results on the 13th.
According to it, the sea temperature in Ago Bay in winter in December and last March has been about 2.5 degrees higher than the average over the past 15 years. The figure showing the amount of phytoplankton in the sea is the third lowest in the last 15 years.
In addition, Mie Prefecture may have affected the mass death due to the fact that the seawater temperature was high in winter and the shellfish became active and required more nutrition than usual, and the lack of phytoplankton in spring caused insufficient nutrition. I have sex.
Mie Prefecture will compile the survey results on infection with bacteria and viruses by the end of next month.