鲤科鱼类在观赏鱼类中占据特殊的地位。我国从宋代开始饲养鲫鱼的变异品种金鲫，从池养到盆养，通过人工选择、纯化、杂交、定向培育出形形色色的金鱼品系几十个。金鱼被作为世界人民共同喜爱的观赏鱼类遍及世界各国。除了金鱼之外，中国特有的塘鱼，也以其色彩鲜艳夺目，而成 Cyprinidae occupy a special position in ornamental fish. From the Song Dynasty, China began to raise the crucian carp variety Carassius auratus, from the pond to the pelvis raising, through artificial selection, purification, hybridization, directional cultivate dozens of goldfish strains. Goldfish is widely loved by all the people of the world as ornamental fish all over the world. In addition to goldfish, the Chinese unique pond fish, also with its colorful eye-catching, and into