【摘要】 北引渠首工程过鱼设施的修建主要是解决嫩江中游一些经济鱼类的短距离生殖和索饵洄游,以及一些珍稀濒危冷水性鱼类的封冰前越冬洄游。对北引渠首工程的过鱼设施进行了研究、方案论证和设计,结合工程的运行调度,最终选择了能够较好适应低水头特点的原生态式鱼道。更多还原

【Abstract】 The main purpose to construct the fishway at the head works of North Nen River Water Diversion Project is to provide a passage for the short distance reproductive and feeding migration of economic fishes and overwintering migration of some rare and endangered species of cold-water fishes.The fishway design of the head works is studied and approached,combining with the operation and regulation of the project,an original ecological fishway more suitable for low water level is selected finally.更多还原