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于1994年春季（4月）和秋季（10-11月）对东海颗粒有机碳（POC）、颗粒氮、ATP（三磷酸腺苷）进行测定，通过ATP定量区分POC中的生命与非生命部分。结果表明，春秋两季POC的平均值为417μg/L，其中春季为280μg/L，生命部分占10%;秋季为541μg/L，生命部分占4％。春秀表层POC以东海陆架中部为高值区向周围递减，与ATP的分布相似，而且颗粒有机物中的C:N比值较低（7.63），说明春季POC主要受生物活动影响;秋季表层POC以长江口为高值区向外海递减，与ATP差别很大，而且颗粒有机物中的C:N比值较高（15.23），说明秋季生物活动已不是POC的主要影响因素。秋季POC可能主要来自长江径流和沉积物的再悬浮。
Particulate organic carbon (POC), particulate nitrogen and ATP (ATP) in the East China Sea were measured in the spring (April) and autumn (October - November 1994) and the living and non-living parts of the POC were quantified by ATP quantification. The results showed that the average value of POC in spring and autumn was 417 μg / L, of which 280 μg / L in spring and 10% in life, 541 μg / L in autumn and 4% in life. The surface POC of spring show decreases toward the periphery with the high value area around the shelf of the East China Sea, which is similar to the distribution of ATP, and the C: N ratio of grain organic matter is low (7.63), indicating that the spring POC is mainly affected by the biological activity. The Changjiang Estuary descends to the outside of the high value area, which differs greatly from ATP, and the C: N ratio of granular organic matter is higher (15.23), indicating that the biological activity in autumn is not the main factor of POC. Autumn POC may be mainly from the Yangtze River runoff and sediment resuspension.