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鱼类属脊索动物门,脊椎动物亚门,鱼纲,全部水生,以鳃进行呼吸;体表有由真皮形成的鳞;有鳍以有利于水中游泳。目前,世界上共有鱼类2万多种,我国已发现的鱼类有2,000余种。其中海洋鱼类1,500余种,淡水鱼类700多种。鱼类不仅可供食用,而且亦为防病治病的药物来源之一一、古代应用鱼类简介鱼类远在甲骨文就有记载,作鱼,说明我国对于鱼类的认识是相当早的。先秦时,对于鱼类有更进一步认识,记载的数量亦很多,周朝的诗歌集《诗经》中就有鱼类78
The fish is a phylum Chorsophyta, vertebrate subphyla, fish gills, all aquatic, breathing in crickets; scales formed by the dermis on the surface; fins to facilitate swimming in the water. At present, there are more than 20,000 species of fish in the world, and more than 2,000 species of fish have been found in China. Among them, there are more than 1,500 species of marine fish and more than 700 species of freshwater fish. Fish is not only edible, but also one of the sources of medicines for prevention and treatment of disease. Ancient Fish Introduction Fish is well documented in Oracle and is used for fish, which shows that our understanding of fish is quite early. In the pre-Qin period, there was a greater number of recorded fishes and there were many records. In the poetry of the Zhou Dynasty, there were fishes in the Book of Songs 78