Three sampling sites were set along the river,the classification and distribution characteristic of the phytoplankton,zooplankton and zoobenthos were sampled and investigated in Mar,2005,respectively.

• 本文于2005年3月针对武江乐昌河段布设了三个监测断面,分别取样调查了浮游植物、浮游动物、底栖动物的种类和分布特性。