Abstract

Data on the dynamics of anadromous migration, age composition, body length, body weight, and morphometric characteristics of Caspian anadromous shad from the Akhtuba River are presented. Currently, Caspian anadromous shad from the Akhtuba River is monomorphic; no temporal groups have been identified. The population is represented by medium-sized young early-maturing (age of 2–3 years) fish with life longevity less than 5 years. Generally, according to the most important diagnostic signs, first and foremost, to the number of gill stamens and some plastic signs, Caspian anadromous shad from the Akhtuba River falls within the range of the diversity that is typical for the form.

中文翻译：

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伏尔加河下游流域阿克图巴河的里海暗沙d（Alosa kessleri kessleri）（格林，1887年）：生物学和形态特征

摘要

给出了关于阿克图巴河里海浮游生物的异常迁移，年龄组成，体重，体重和形态特征的动力学数据。目前，来自阿克图巴河的里海暗礁是单形的。尚无时间组。人口以寿命短于5年的中型年轻早熟（2-3岁）为代表。通常，根据最重要的诊断迹象，首先是腮of的雄蕊和一些塑性迹象，来自阿克图巴河的里海C鱼sha属于该形态典型的多样性范围。