珠江口两岸及其半咸水水域内,分布有一定量的池塘海水养殖及育苗场所,浮游生物的种类、数量直接影响着水质的好坏,特别是有害种类,能够造成疾病的流行。因此,对该水域的浮游生物资源的调查,在养殖业上具有重要意义,对浮游生物种类的鉴别有利于防病,对浮游生物量的测定有利于选择养殖品种和科学投饵。珠江下游支流繁多,淡水交汇于珠江口,即珠海、深圳、澳门、香港所辖海面。由 Within the Pearl River Estuary and its brackish water area, a certain amount of pond aquaculture and breeding places are distributed. The species and quantity of plankton directly affect the quality of water, especially the harmful species, which can cause the epidemic. Therefore, the survey of plankton resources in this area is of great significance in aquaculture. The identification of plankton species is beneficial to disease prevention, and the determination of plankton biomass is conducive to the selection of cultured species and scientific feeding. Tributaries of the lower reaches of the Pearl River, freshwater intersection in the Pearl River Mouth, that is, Zhuhai, Shenzhen, Macau, Hong Kong under the jurisdiction of the sea. by