Research into techniques for suppressing anoxic water conditions in Oomura Bay (Nagasaki Prefecture)

A strong pycnocline appears in Oomura Bay during the summer, weakening bottom water currents and producing anoxic water masses, which are followed by red tides. In this study, we mixed warm, oxygen-rich, nutrient-poor seawater with cool, oxygen-poor, nutrient-rich bottom water at the surface and diffused the mixture laterally in the middle layer to induce the biological production process. We are presently studying phytoplankton and zooplankton that are considered to be closely related to organisms associated with red tide occurrences.

｜Iwate Prefecture｜Miyagi Prefecture｜Nagasaki Prefecture｜Kagoshima Prefecture｜