Role of the Biological Oceanography in the Global Ocean Environmental Issue in the 21st Century

I am highly honored by being invited to the 30th anniversary Symposium of the Korean Society of Oceanography (KSO). I would like to express my sincere thanks to the KSO for this invitation, and on behalf of all the members of the Oceanographic Society of Japan and the Plankton Society of Japan, to offer our congratulations to the KSO for the 30th anniversary. In honor of the occasion, I would like to remark on role of the oceanography in global environmental issues in the coming century. However, a talk covering whole spectrum of the oceanography would be desultory, so, since my major field is biology, I will focus my talk on the biological oceanography.