Kuroshio is a warm western boundary current of the North Pacific. In spite of the low-nutrient concentration of Kuroshio water, the Kuroshio region is an important spawning and nursery ground of various fish species and also a good fishing ground. It is named the inconsistency of high fisheries production in oligotrophic environment as the Kuroshio Paradox. In order to solve the paradox and to find a way for sustainable use of the ecosystem services, we are collaborating with physical, chemical, and biological oceanographers and social scientists. A part of results were published in "Kuroshio Current" from AGU-Wiley (click below)