Diatoms as indicators of the effects of river impoundment at multiple spatial scales.

ABSTRACT: River impoundment constitutes one of the most important anthropogenic impacts on the World's rivers. An increasing number of studies have tried to quantify the effects of river impoundment on riverine ecosystems over the past two decades, often focusing on the effects of individual large reservoirs. This study is one of the first to use a large-scale, multi-year diatom dataset from a routine biomonitoring network to analyse sample sites downstream of a large number of water supply reservoirs (n = 77) and to compare them with paired unregulated control sites. We analysed benthic diatom assemblage structure and a set of derived indices, including ecological guilds, in tandem with multiple spatio-temporal variables to disclose patterns of ecological responses to reservoirs beyond the s

SUBMITTER: Krajenbrink HJ 

PROVIDER: S-EPMC6884997 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature