Scholarlink

Abstract <p>A comparative analysis of the taxonomic and trophic structures of benthic invertebrate communities was carried out based on the results of collections in the riverine sections of the Kama (2012), Votkinsk (2010) and Nizhnekamsk (2015) reservoirs. A species list is given, and trends in benthic fauna changes down the cascade are shown: its depletion at the species and generic levels, a decrease in the proportion of mayflies, stoneflies, and caddisflies, the absolute and relative species richness of chironomids, as well as the proportion of Tanytarsini, and an increase in the relative species richness of mollusks and crustaceans. The main quantitative trend of changes was an increase in the absolute and relative biomass of filter feeders and scrapers, gastropods and large bivalves, in the riverine sections of reservoirs downstream the cascade.</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

Comparative Analysis of Structure in Benthic Invertebrates Communities of the Upper (Riverine) Parts of Reservoirs in the Kama River Cascade

  • 期刊论文

  • 发表日期：

    2025年2月1日

查看全文
  • I. V. Pozdeev,
  • V. V. Bezmaternykh

摘要

Abstract

A comparative analysis of the taxonomic and trophic structures of benthic invertebrate communities was carried out based on the results of collections in the riverine sections of the Kama (2012), Votkinsk (2010) and Nizhnekamsk (2015) reservoirs. A species list is given, and trends in benthic fauna changes down the cascade are shown: its depletion at the species and generic levels, a decrease in the proportion of mayflies, stoneflies, and caddisflies, the absolute and relative species richness of chironomids, as well as the proportion of Tanytarsini, and an increase in the relative species richness of mollusks and crustaceans. The main quantitative trend of changes was an increase in the absolute and relative biomass of filter feeders and scrapers, gastropods and large bivalves, in the riverine sections of reservoirs downstream the cascade.