论文部分内容阅读
白洋淀地处京、津、保三市之间,是华北平原上的最大湖泊,现有面积366平方公里。历史上鱼、米、粮、航四业兴旺。但自1983年来,连续干淀三次,严重破坏了原有的渔业资源,使鱼类组成发生了很大变化。1988年8月,白洋淀重新蓄水,淀区的渔业资源开始恢复。为了摸清白洋淀重新蓄水后的鱼类组成和渔业资源现状,为白洋淀的渔业发展提供科学的指导和依据,我们于1991年4~8月两次对白洋淀的鱼类进行了调查。
Baiyangdian is located between Beijing, Tianjin and Baoan City and is the largest lake on the North China Plain with an existing area of 366 square kilometers. Historically, fish, rice, grain and airlines boomed. However, since 1983, three consecutive dry spells have seriously damaged the original fishery resources and greatly changed the fish composition. August 1988, Baiyangdian re-impounding, fishing resources in the area began to recover. In order to find out the fish composition and the status quo of fishery resources after the re-impoundment of Baiyangdian Lake and provide scientific guidance and basis for the fishery development of Baiyangdian Lake, we investigated the fish of Baiyangdian Lake twice from April to August in 1991.