Abstract

The trophic structure of benthic macroinvertebrate communities in lakes varying in salinity levels (from oligohaline to hyperhaline) in the southern Ob–Irtysh interfluve has been investigated. Four trophic groups of macroinvertebrates have been identified in 48 lakes: (1) predators, (2) grinders, (3) scrapers, and (4) collectors–detritophages and facultative filter feeders. It is found that the proportion of different trophic groups in taxonomic composition and biomass of macroinvertebrate communities changes with increasing water salinity in lakes.

中文翻译：

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不同水盐度水平湖泊底栖大型无脊椎动物群落的营养结构

摘要

已研究了南部Ob-Irtysh汇流区盐度水平从低盐度到高盐度变化的湖泊底栖大型无脊椎动物群落的营养结构。在48个湖泊中已鉴定出4个营养级的大型无脊椎动物：（1）捕食者，（2）粉碎机，（3）刮刀和（4）收集器-碎屑和兼性滤食器。研究发现，不同营养类群在大型无脊椎动物群落的生物分类组成和生物量中所占比例随着湖泊水盐度的增加而变化。