宝剑鱼盛产于大渡河,因鱼头至鱼身的背脊之间有一把形似宝剑的骨架,而得名。传说明末翼王石达开就义前将宝剑投入大渡河中,大渡河鱼便从此得灵气而头顶宝剑。该鱼为淡冰雪河水鱼类中的上品,以石棉县境内的最为出名。因大渡河上游的冰雪天气,水流湍急,不宜生长,下游乐山拦河筑坝截断大渡河,也不适宜其生长、繁殖,而中流地段 Sword fish rich in the Dadu River, due to the fish head to the spine between the sword has a shape of the skeleton, and named. It is said that the king of the Ming Dynasty endowed the sword into the Dadu River before the righteousness, and the fish of the Dadu River had reincarnated from above and sword. The fish is light snow river fish in the top grade to Shimian County, the most famous. Because of the upper reaches of the Dadu ice and snow weather, fast-flowing, unfit for growth, downstream dam blocking the Dadu River dam, nor suitable for its growth and reproduction, while the mid-stream section