Long-term data (1996–1999 and 2008–2014) are presented on the species composition, density of aggregations, and distribution of juvenile fish in various types of shallow coastal areas of the Rybinsk Reservoir and the mouths of its tributaries. The earliest information (1950s–1980s) on the formation of the fish population in the reservoir as a result of the adaptation of individual species to changed living conditions is considered. The characteristic features of the distribution of juvenile fish in the tributaries of the reservoir are shown: in the coastal zone of the mouth area and areas of bordering systems. Patterns of the distribution of juvenile fish in years of different water contents were revealed.

提供了雷宾斯克水库及其支流河口各类浅海沿岸地区幼鱼的物种组成、聚集密度和分布的长期数据（1996-1999年和2008-2014年）。考虑了由于个体物种适应生活条件变化而导致水库鱼类种群形成的最早信息（1950 年代至 1980 年代）。水库支流幼鱼分布特征表现为：河口区沿岸带和水系接壤区。揭示了不同含水量年份幼鱼的分布规律。