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《中国钓鱼》杂志编辑部转来四川读者邓如意的邮件,说有钓友从嘉陵江钓获一条“怪鱼”,他见后认为可能是“箭鱼”。其实,这是一条来自北美密西西比河的匙吻鲟。匙吻鲟(Polyodonspathuln)隶属于鲟形目,白鲟科,匙吻鲟属。它与我国白鲟(国家一级保护动物)是同科异属的远房亲戚。在台湾、美国匙吻鲟又叫太空鲟(因为长的很奇特),偶尔可以在观赏鱼店里看到。匙吻鲟的脊背呈灰黑色,肚腹部分呈白色。鱼鳃呈三角形,鱼尾呈燕尾状,有黑色斑点,鱼身无鳞,无明显腥味。特别怪异的是那长如剑、硬若骨,类似鸭嘴的“鱼”嘴,约占全鱼总长的1/3,鱼眼长在“嘴”的末端,上面有花纹,其全身兼有多种海鱼、江鱼、河鱼的特点。
The editorial department of China Fishing magazine turned to Sichuan Reader Deng Ruyi’s mail, saying that there were angling friends who caught a “strange fish” from Jialing River. After seeing this, he thought it might be a “swordfish.” In fact, this is a key sturgeon from the Mississippi River in North America. Polyodonspathuln belongs to the order of sturgeon, white sturgeon and sturgeon. It is with China’s white sturgeon (national level protected animals) is a distant relatives of the same family. In Taiwan, the United States Keystone sturgeon, also known as space sturgeon (because of the long strange), occasionally can be seen in the ornamental fish shop. Key to sturgeon back gray, black, belly part is white. Fish gills were triangular, fish tail was dovetail, black spots, fish scales, no obvious smell. Particularly weird is that as long as the sword, hard if the duck-like “fish” mouth, about the total length of the fish 1/3, fish eyes grow in the “mouth” of the end, the above patterns, both the body A variety of marine fish, river fish, river fish characteristics.