底栖有孔虫对厦门筼筜湖污染的监测作用

Study on monitoring by benthic foraminifera of pollution in Yuandang Lake, Xiamen

1992年11月至1993年8月对厦门湖及厦门西港部分海域底栖有孔虫及相关的环境化学要素进行了4个季度月的调查，发现湖的底栖有孔虫可分为三个群落，即正常群落、半污染群落和污染群落，分别代表了湖内不同污染程度环境，同时发现了底栖有孔虫的耐得种类和对污染敏感种类，它们具有指示环境的意义。

The Yuandang Lake has been polluted by domestic and industrial wastes. In line with the degree of pollution in the lake, three communities of benthic foraminifera can be classified normal community, half polluted community and polluted community. Ammonth beccaarii is the most dominant species and Qut4ueloculina aknehena the second one. The relative abundance of the two species increases(from 76. 1 % to 100% ) with their absolute abundance reduced from normal community to polluted community. They are referred to as the tolerance species. The other species of benthic foraminifera are found sensitive to pollution, such as T^mmina hadai, Elyhidium inctaum, Amedculites formosensis, Arenoparrella asiatica and Fissurina cucuhaasema bispinata. Both tolerance species and sensitive species,could be used to evaluate the pollution in the Yuandang Lake.