察尔森水库位于内蒙古兴安盟科右前旗境内,最大库容12亿m~3。水库水源来源于植被茂盛的丘陵及草原,水质清新无污染,是我国少有的未受到污染的水库之一,因而渔业生产条件良好,生物饵料丰富,水库内鱼类种类繁多~([1])。马口鱼(Opsariichthys bidens)是察尔森水库引进品种,察尔森水库捕获的马口鱼体质量 Chaersen Reservoir is located in Inner Mongolia Xinganmengke right before the territory of the largest storage capacity of 1.2 billion m ~ 3. The reservoir water source comes from lush vegetation and grassland. The water quality is fresh and pollution-free. It is one of the few undisturbed reservoirs in our country. As a result, the fishery production conditions are good, the biological food is abundant, and the fish species in the reservoir are various. ). Opsariichthys bidens is a species introduced by the Chalson Reservoir and the mass of the codfish captured by the Chalson Reservoir