大连水产学院水产养殖系1985年从南方引进一种食用大型淡水螺——大瓶螺.在贝类研究室主任魏若飞主持下,经过一年的试验.证明大瓶螺适宜在我省养殖.大瓶螺,俗名萍果螺,原产于南美洲亚马逊河流域,是我国新引进的一种水产贝类养殖新品种.广州、广西、云南、上海、武汉等地已开始养殖,被誉为“淡水养殖新秀”.这种淡水螺类的养殖方法简单,繁殖力强. Aquaculture Department of Dalian Fisheries University introduced a large-scale edible freshwater snail - big bottle snail from the south in 1985 under the auspices of Wei Ruofei, director of shellfish research department, after one year of experiment, which proved that bottle snail was suitable for breeding in our province. Common name of the snail, native to the Amazon basin in South America, is a newly introduced aquatic shellfish breeds in China.Guangzhou, Guangxi, Yunnan, Shanghai, Wuhan and other places have begun breeding, known as the "freshwater aquaculture rookie This kind of freshwater snails farming method is simple, strong reproductive.