Nature of Inner Asia
Bibliographic description:
, BIOLOGICAL CHARACTERISTICS OF THE NORTH BAIKAL POPULATION OF THE BAIKAL OMUL // Nature of Inner Asia. - 2023. №1(23). . - С. 73-78.
Title:
BIOLOGICAL CHARACTERISTICS OF THE NORTH BAIKAL POPULATION OF THE BAIKAL OMUL
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Annotation:
The feeding shoal of the Baikal omul on Northern Baikal is represented by a coastal morpho-ecological group. Based on the materials, collected during June–August 2020, we have studied the age and size structure, linear-weighted growth, sex ratio and the state of sexual maturity of the omul population found in the coastal morpho-ecological group. The coastal omul shows a high linear growth rate before the beginning of mass maturation (age 1+ – 4+ ). After puberty (age 5+ – 11+) the average annual growth in length decreases, while the growth in weight increases. The sex ratio is close to 1,1:1. Mass maturation begins with advancing 5+ – 6+ years.
Keywords:
the Baikal omul Coregonus migratorius, morpho-ecological groups, Lake Baikal, the North Baikal population, biological characteristics of omul.
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Article.pdf