淡水鲨鱼学名为苏氏圆腹(?)[Pangasius、sutchi(Fowler)]。隶属鲇形目,(?)鲇科、(?)鲇属,主要分布于东南亚一带,是泰国、马来西亚等地的优良淡水养殖鱼类。目前我国引进的品种有体色红白相间和蓝白相间两种,所以又称红鲨和蓝鲨。该鱼体表光滑无鳞、体型长而侧扁,具脂鳍,为热带鱼类。适温范围为13-36℃,生长适宜水温22-36％℃,对低温的耐受能力较弱,下限水温为12℃。由于其具有食性杂、生长 Freshwater shark scientific name Su round belly (?) [Pangasius, sutchi (Fowler)]. Subordinate 鲇 form, (?) 鲇 family, (?) 鲇 genus, mainly distributed in Southeast Asia, Thailand, Malaysia and other places of freshwater aquaculture fish. At present, China has introduced varieties of body color red and white and blue and white two, so also known as red sharks and blue sharks. The fish is smooth and scales without scale, body length and side flat, with fat fins, tropical fish. Suitable temperature range of 13-36 ℃, suitable growth of water temperature 22-36% ℃, low tolerance to low temperature, the lower limit of the water temperature is 12 ℃. Because of its food habits, growth