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本文调查了在中国对虾养成过程中，放苗数，饵料系数和产量不同的七个虾池水体内叶绿素a的含量变化及五个虾池水体内脱镁叶绿素的含量变化。结果表明七个虾池中叶绿素a的含量从5月份到9月份由4mg／m3左右增加到37～46mg／m3，8月份个别虾池达到65mg／m3。五个虾池中的脱镁叶绿素含量从5月份到8月份由＜10mg／m3增加到48～66mg／m3，和叶绿素a的变化是一致的，但9月份又下降到30mg／m3以下。
In this paper, we investigated the changes of chlorophyll a content in seven shrimp ponds with different numbers of plantlets, feed conversion coefficient and yield during the shrimp culture in China and the changes of pheophytin content in five shrimp ponds. The results showed that the content of chlorophyll a in seven shrimp ponds increased from 4mg / m3 to 37 ~ 46mg / m3 from May to September, while that in August was 65mg / m3. The pheophytin content of five shrimp ponds increased from <10mg / m3 to 48 ~ 66mg / m3 from May to August, which was consistent with the change of chlorophyll a, but dropped to below 30mg / m3 in September.