"Through joint efforts in building the Belt and Road Initiative, China will work for greater complementarity in ocean economy strategies and industries among countries and actively promote cooperation on marine resources development and marine life conservation."

She was speaking before more than 10,000 delegates attending the three-day conference. President Uhuru Kenyatta of Kenya led global leaders in making pledges and commitments to building and supporting sustainable blue economy. The event was co-hosted by Japan and Canada.

"I am convinced that for the sake of the present and future generations, and for the continued viability of our ecosystems, we have to envision a different future and, therefore, a different model for the blue economy. I pledge to envision that future and do my part to promote it," Kenyatta said.

World leaders highlighted emerging policies and regulations surrounding blue economy to mitigate against threats such as climate change and human activities.