Scholarlink

Abstract <p>The results of analysis of the qualitative and quantitative composition of the diet of the most numerous fish species at the Pinega Reserve of the Sotka River, European grayling, roach, and perch, are presented. Their age features of nutrition and food interactions are considered. Tense food relations have been revealed between roach and perch as a result of intensive use of aquatic insect larvae as food components. A&#xa0;comparative analysis of nutrition has shown tense trophic interactions between them, which indicates a possible food competition. At the same time, the wide range of the diet of grayling mitigates the tension in its food relations with perch and roach.</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

Fish Nutrition and Trophic Interactions between Fishes in the Sotka River at the Pinega State Reserve

  • 期刊论文

  • 发表日期：

    2025年8月1日

查看全文
  • V. A. Lukina,
  • A. P. Novoselov,
  • G. A. Dvoryankin

摘要

Abstract

The results of analysis of the qualitative and quantitative composition of the diet of the most numerous fish species at the Pinega Reserve of the Sotka River, European grayling, roach, and perch, are presented. Their age features of nutrition and food interactions are considered. Tense food relations have been revealed between roach and perch as a result of intensive use of aquatic insect larvae as food components. A comparative analysis of nutrition has shown tense trophic interactions between them, which indicates a possible food competition. At the same time, the wide range of the diet of grayling mitigates the tension in its food relations with perch and roach.