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依据鱼类的繁殖习性及其早期发育阶段的适应特征,将长江中的8目17科90种鱼类划分为3个行为类型,13个繁殖共位群。其中鲤形目鱼类的86.9%属于无亲体护卫型繁殖类群,多为适应长江干流环境的漂浮性产卵类群以及适应湖泊定居的喜石性产卵类群与喜植性产卵类群。与现有的分类系统相比较,鱊亚科的全部种类仅局限于同一个繁殖共位群中,而鮈亚科的种类则分布于5个不同的繁殖共位群。对不同水系繁殖共位群的组成进行了比较。此外,讨论了不同繁殖共位群的生态适应性,及其在长江流域鱼类资源保护中的应用。
According to the breeding habit of fish and the adaptive characteristics of its early developmental stages, 90 species of 8 families, 17 orders and 8 orders in the Yangtze River were divided into 3 types of behavior and 13 breeding colonies. Among them, 86.9% of common carp (Cyprinus carpio) belonged to non-parental guarding breeding groups, mostly floating buccal spawn groups adapted to the Yangtze River mainstream environment and hippocampal spawning groups and hippocampal spawning groups adapted to lake lakes. Compared with the existing taxonomic system, all the taxa of Taxonomic families are confined to the same breeding colony, while the species of Taxonomic families are distributed in five different breeding colonies. The composition of the breeding colonies in different water systems were compared. In addition, the ecological adaptability of different breeding colonies and their application in the protection of fish resources in the Yangtze River Basin were discussed.