Impact of extreme oxygen consumption by pollutants on macroinvertebrate assemblages in plain rivers of the Ziya River Basin, north China

The aim of the study was to estimate the impact of oxygen depletion on macroinvertebrate community structure in benthic space. Macroinvertebrate assemblages and potential of dissolved oxygen (DO) consumption were investigated simultaneously in the plain rivers of the Ziya River Basin. The degree of...

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Bibliographic Details
Published in:Environmental science and pollution research international 2016-07, Vol.23 (14), p.14147-14156
Main Authors: Ding, Yuekui, Rong, Nan, Shan, Baoqing
Format: Article
Language:English
Subjects:
Ammonium Compounds - analysis
Anaerobiosis
Animals
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Basins
Biodiversity
Biological Oxygen Demand Analysis
Branchiura
Chemical oxygen demand
China
Cities
Consumption
Cricotopus
Dicrotendipes
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring
Environmental science
Gomphus
Hypoxia
Insecta
Invertebrates
Investigations
Laboratories
Limnodrilus
Oligochaeta
Oxygen - analysis
Oxygen Consumption
Paraleptophlebia
Pollutants
Pollution
Procladius
Research Article
River basins
River networks
Rivers - chemistry
Sediments
Studies
Waste Water Technology
Water Management
Water Pollutants, Chemical - chemistry
Water pollution
Water Pollution - adverse effects
Water Pollution Control
Water quality
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Summary:The aim of the study was to estimate the impact of oxygen depletion on macroinvertebrate community structure in benthic space. Macroinvertebrate assemblages and potential of dissolved oxygen (DO) consumption were investigated simultaneously in the plain rivers of the Ziya River Basin. The degree of DO depletion was represented by sediment oxygen demand (SOD) and DO, chemical oxygen demand (COD Cr ), and ammonia nitrogen (NH 4 + -N) in the overlying water. The results showed an all-around hypoxia environment formed, and the values of DO, SOD, COD Cr , and NH 4 + -N were separately 0.11–4.03 mg L −1 , 0.41–2.60 g m −2  day −1 , 27.50–410.00 mg L −1 , and 1.79–101.41 mg L −1 . There was an abnormal macroinvertebrate assemblage, and only 3 classes, Insecta, Gastropoda, and Oligochaeta, were found, which included 9 orders, 30 families, and 54 genera. The biodiversity was at a low level, and Shannon-Wiener index was 0.00–1.72. SOD, and NH 4 + -N had major impact on the macroinvertebrate community, and the former had negative effect on most taxa, for instance, Nais , Branchiura , Paraleptophlebia , etc., which were sensitive or had a moderate-high tolerance to pollution. NH 4 + -N had both positive and negative impacts on benthic animals, for instance, Dicrotendipes , Gomphus , Cricotopu s, etc., for the former, and Procladius , Limnodrilus , Hippeutis , etc., for the latter. They all had a moderate-high tolerance to pollution. It is significant to improve DO condition and macroinvertebrate diversity in river harnessing and management.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-016-6404-z