1996年4月底至5月初,唐海县名优水产养殖试验场每日有上万只鱼鹰光顾,尽管每日有专人用猎枪、鞭炮驱赶,终因面积太大,管理不便,到5月中旬,约有46.7hm~2精养建鲤鱼种池几乎绝收,损 From the end of April to the beginning of May 1996, tens of thousands of Ospreys patrol daily at the famous aquaculture pilot farm in Tanghai County. Despite the fact that some people use shotguns and firecrackers to drive away daily, the area is too large and management is inconvenient. By mid-May, About 46.7 hm ~ 2 intensive carp species pool is almost income, loss