Based on the measured carbonate data, the calculated IC/OC ratio ranges from 22% to 23% in the deep water of the Kuroshio region.

• 黑潮流域深层水在水团移动过程中，增加的总二氧化碳量有23%25来自生物壳体溶解所提供，其馀77%25则来自有机质分解。