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珠江水系鱼类资源丰富,种类复杂。兹简要叙述如下: (一)种类繁多。珠江水系鱼类共370种(亚种),隶属于17目49科174属,居全国各大江河之冠(表1)。占全国淡水鱼种类的一半左右。这是由于珠江水系气候、地理条件的特殊性和水文条件的复杂性,决定了珠江水系鱼类的多样性。这也符合“纬度越低,种类越多”的动物地理分布的基本规律。
Pearl River is rich in fish species, complex species. Here is a brief description: (a) a wide variety. There are 370 species (subspecies) of fish in the Pearl River system, belonging to 17 families, 49 families and 174 genera, ranking the highest among the major rivers in the country (Table 1). Accounting for about half of freshwater fish species in the country. This is due to the peculiarities of the climate, geographical conditions and hydrological conditions of the Pearl River water system, which determine the diversity of the fish in the Pearl River water system. This is also in line with the basic law of geographical distribution of “lower latitudes and more species”.