Geographical Patterns of Algal Communities Associated with Different Urban Lakes in China

Bibliographic Data

ID15468328
AuthorsShengnan Chen (0000-0002-7953-2266, Xi'an University of Architecture and Technology, corresponding author), Huiyan He (0009-0006-9882-6944, Xi'an University of Architecture and Technology), Rongrong Zong (Xi'an University of Architecture and Technology), Kaiwen Liu (0000-0002-2186-8031, Xi'an University of Architecture and Technology), Yutian Miao (Xi'an University of Architecture and Technology), Miaomiao Yan (0000-0003-3643-8840, Xi'an University of Architecture and Technology), Lei Xu (0009-0000-3744-0753, Xi'an University of Architecture and Technology)
Year2020
Volume17
Issue3
Pages1009-1009
Publication date2020-02-05
Open AccessYes
TypeARTICLE
VenueInternational Journal of Environmental Research and Public Health (JOURNAL)
Journal identifiersISSN: 1661-7827 • E-ISSN: 1660-4601
PublisherMultidisciplinary Digital Publishing Institute (PUBLISHER • CH)
DOI10.3390/ijerph17031009
PMID32033450
OpenAlexW3005412235
LanguageEN
Citations received2
References cited76

Urban lakes play an important role in drainage and water storage, regulating urban microclimate conditions, supplying groundwater, and meeting citizens' recreational needs. However, geographical patterns of algal communities associated with urban lakes from a large scale are still unclear. In the present work, the geographical variation of algal communities and water quality parameters in different urban lakes in China were determined. The water quality parameters were examined in the samples collected from north, central, south, and coastal economic zones in China. The results suggested that significant differences in water quality were observed among different geographical distribution of urban lakes. The highest total phosphorus (TP)(0.21 mg/L) and total nitrogen (TN) (3.84 mg/L) concentrations were found in XinHaiHu (XHH) lake, it also showed highest the nitrate nitrogen (NO 3 - -N) (0.39 mg/L),total organic carbon(TOC) (9.77 mg/L), and COD Mn (9.01 mg/L) concentrations among all samples. Environmental and geographic factors also cause large differences in algal cell concentration in different urban lakes, which ranged from 4,700×10 4 to 247,800 ×10 4 cell/L. Through light microscopy, 6 phyla were identified, which includes Chlorophyta, Bacillariophyta, Cyanophyta, Dinophyta, Euglenophyta, and Cryptophyta. Meanwhile, the heat map with the total 63 algal community composition at the genus level profile different urban lakes community structures are clearly distinguishable. Further analyses showed that the dominant genera were Limnothrix sp., Synedra sp., Cyclotella sp., Nephrocytium sp., Melosira sp., and Scenedesmus sp. among all samples. The integrated network analysis indicated that the highly connected taxa (hub) were Fragilaria sp., Scenedesmus sp., and Stephanodiscus sp. The water quality parameters of NO 3 - -N and NH 4 + -N had significant impacts on the structural composition of the algal community. Additionally, RDA further revealed distinct algal communities in the different urban lakes, and were influenced by NO 2 - -N, Fe, and algal cell concentrations. In summary, these results demonstrate that the pattern of algal communities are highly correlated with geographic location and water quality on a large scale, and these results also give us further understanding of the complex algal communities and effectively managing eutrophication of urban lakes

Algae · Biology · Chlorophyta · Community structure · Geography · Nitrate · Total organic carbon · Water quality · Aquatic Ecosystems and Phytoplankton Dynamics · Environmental Science · Marine and coastal ecosystems · Water Quality and Pollution Assessment · Ecology

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