Biological Parameters of Sturgeons from the Ural (Zhaiyk) River in the Republic Kazakhstan According to Data on Illegal, Unreported, and Unregulated Catches
Mikodina E.V. Ruban G.I. Shalgimbayeva G.M.
August 2024Pleiades Publishing
Inland Water Biology
2024#17Issue 4646 - 652 pp.
Abstract: This paper analyzes the dynamics of occurrence of four sturgeon species from the family Acipenseridae (Russian sturgeon Acipenser gueldenstaedtii, sterlet A. ruthenus, stellate sturgeon A. stellatus, and beluga Acipenser (Huso huso) in IUU catches from the Ural (Zhaiyk in Kazakh) River in the Republic of Kazakhstan. Data on the arrested IUU catches of the annual quantity of sturgeons from 2012 to 2018 are given that demonstrate fluctuations in the amount of Ural River sturgeons from this river, as well as the male dominance in their populations. Biological parameters of Ural sturgeons (sex ratio, age, weight, length, and length–weight ratio) during the period of maximum catches in 2018 are given.
age , IUU catch , length , sex ratio , sturgeons , Ural River , weight
Text of the article Перейти на текст статьи
Razumovsky State University of Technologies and Management (First Cossack University), Moscow, Russian Federation
Shenzhen MSU-BIT University, Shenzhen, China
Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russian Federation
Fisheries Research and Production Center, Almaty, Kazakhstan
Razumovsky State University of Technologies and Management (First Cossack University)
Shenzhen MSU-BIT University
Severtsov Institute of Ecology and Evolution
Fisheries Research and Production Center
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026