匙吻鲟(Polydonspathala),原产于美国密西西比河流域,属于鲟形目,也是目前最古老的辐鳍鱼类之一。1990年引进我国,在人工养殖中具有适应性强、生长快、抗病力强、经济价值高等优点,是改善养殖结构、提高养殖效益的理想品种之一。匙吻鲟是一种大型鱼类,最大个体可达65kg,适合大水面养殖。临沂市大水面资源非常丰富,水库众多,饵料资源丰富,2003年我们进行了网箱养殖匙吻鲟试验,现将试验情况介绍如下: Polydonspathala, native to the Mississippi River basin of the United States, belongs to the order of sturgeon and is one of the oldest species of radiating finfish. Introduced to China in 1990 has the advantages of strong adaptability, fast growth, strong disease resistance and high economic value in artificial breeding. It is one of the ideal varieties to improve breeding structure and raise breeding efficiency. Key sturgeon is a large fish, the largest individual up to 65kg, suitable for large surface culture. Linyi City is rich in surface water resources, many reservoirs, abundant food resources, in 2003 we conducted a cage culture Keyring sturgeon test, the test situation is as follows: