世界的鱼类,据说有3万-5万种,其中可供观赏的包括海水鱼,淡水鱼有2-3千种,而实际普遍饲养和常见的只有500种左右.
观赏鱼主要包括海水鱼,热带鱼,中国金鱼,锦鲤鱼,其它淡水鱼,本卷只介绍一些常见品种,在分类上依照习惯叫法,分类不一定正确.
热带鱼:包括脂鲤科、鲤科、鳉鱼科、慈鲷科、攀鲈科、鳅科、鲶科等.
龙鱼:本属古代鱼类也可属热带鱼类,但人们习惯将其单列一类.
七彩神仙鱼:本属热带鱼中的慈鲷科,因其独特的形态而单列.
中国金鱼:本属我国的"国粹",但已在国外培育出许多新品种.
锦鲤鱼:许多国家均有培育,但以日本产的品种最好.
海水鱼:品种极多,能在水族箱中饲养的只有数百种.
其它鱼类:包括古代鱼和其它淡水鱼.
译文:
Brief Introduction of Fish
It is said the species of fish in the world reach 30,000 to 50,000. There are 2,000 to 3,000 kinds of marine fishes and fresh water fishes among the categories for viewing. In fact, there are only about 500 kinds to be fed commonly and seen frequently.
Ornamental fish mainly includes marine fish, tropical fish, Chinese Goldfish, Koi and other fresh water fish. The volume will only introduce some common breeds divided according to custom and maybe with some discrepancies.
Tropical fish: Including characin, cyprinidae, medaka, cichlid, gourami, biota or loach and groupers and so on.
Dragonfish or Arowana: Within primitive fish and also tropical fish, but people list it sole customarily.
Discus: Belongs to cichlid of tropical fish, but divided in one as per its unique shape.
Chinese Goldfish: Originates from China as one of Chinese quintessence, but has been fostered many other new species out of China.
Koi: Bred on many countries, but the best species from Japan.
Marine fish: Rich in breeds, but only limited hundreds kinds can be fostered within tank.
Other fishes: Contains primitive fish and other fresh water fish.