2004年六七八月份胶州湾双毛纺锤水蚤丰度分布

胶州湾内的双毛纺锤水蚤全年出现，6月份湾东北、湾南出现密集区；7月湾中丰度较大且从西到东递减；8月湾西北丰度最大，其次是湾中东岸和湾外近岸。丰度的季节变化显然与饵料浓度有关系。

Acartia bifilosa in the Jiaozhou Bay occurs throughout the year. In June, dense aggregations are observed in the northeastern and southern parts of the bay. In July, the abundance is relatively high in the central bay and decreases gradually from west to east. In August, the abundance peaks in the northwestern bay, followed by the eastern shore of the central bay and the nearshore waters outside the bay. The seasonal variation in abundance is clearly correlated with food concentration.