Fishes The scales of the rivers are small, the volume of water is low, and is mainly for farming uses. Thus, they are being very much influenced from the farming houses in the area. Only 14 species were confirmed, and proved a meager fishery. There were 9 kinds of primary freshwater fish (64.3%), 1 kind of secondary freshwater fish (7.1%), and 4 other kinds (28.6%). The primary freshwater fish were the most predominant, and no native fish were found. The crucian carps were the most dominant in most areas.