Scholarlink

Abstract <p>The article presents the results of the study of morphological variability of 22 populations of whitefish <i>Coregonus lavaretus</i> sensu lato from Siberian water bodies and Baikal omul <i>C. migratorius</i> used as an outgroup. It has been shown that, despite similar ecology (river, lake), Arctic and Southern Siberian whitefish have different morphological appearances. Modern lacustrine–riverine forms of whitefishes from the water bodies of Southern Siberia are always have a tall body and have a short high caudal peduncle, while such forms from Arctic water bodies are slender bodied and have a long caudal peduncle. Southern Siberian lacustrine planktophagous whitefishes are always slender bodied, with a long caudal peduncle. Arctic lacustrine (estuary) whitefishes always have a low body and a relatively short caudal peduncle. The different patterns of body shape variability in Arctic and Southern Siberian whitefishes are more accurately explained by their short evolutionary history and hybridization with distant forms/species, rather than by formed adaptations and the influence of environmental conditions.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Features of Variability of Some Morphological Characteristics in White Fish Coregonus lavaretus sensu lato from Water Bodies of the Southern and Arctic Regions of Siberia

  • 期刊论文

  • 发表日期：

    2025年6月22日

查看全文
  • N. A. Bochkarev

摘要

Abstract

The article presents the results of the study of morphological variability of 22 populations of whitefish Coregonus lavaretus sensu lato from Siberian water bodies and Baikal omul C. migratorius used as an outgroup. It has been shown that, despite similar ecology (river, lake), Arctic and Southern Siberian whitefish have different morphological appearances. Modern lacustrine–riverine forms of whitefishes from the water bodies of Southern Siberia are always have a tall body and have a short high caudal peduncle, while such forms from Arctic water bodies are slender bodied and have a long caudal peduncle. Southern Siberian lacustrine planktophagous whitefishes are always slender bodied, with a long caudal peduncle. Arctic lacustrine (estuary) whitefishes always have a low body and a relatively short caudal peduncle. The different patterns of body shape variability in Arctic and Southern Siberian whitefishes are more accurately explained by their short evolutionary history and hybridization with distant forms/species, rather than by formed adaptations and the influence of environmental conditions.