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31 results on '"Wu, Zhaoshi"'

15. Spatial autocorrelation of phytoplankton biomass is weak in the rivers of Lake Taihu Basin, China

Author

Wu Zhaoshi, Kong Ming, Fan Yamin, Wang Xiaolong, and Li Kuanyi

Subjects
Phytoplankton, Lake Taihu Basin, river, spatial autocorrelation, Aquaculture. Fisheries. Angling, SH1-691
Abstract

We investigated the characteristic of phytoplankton community structure across the entire Lake Taihu Basin (LTB), one of the most developed areas in China. A morphologically based functional group (MBFG) proposed by Kruk et al. (2010), especially potential toxic cyanobacteria (group III and VII), was also illustrated. Samples were collected at 96 sites along main rivers throughout the four seasons from September 2014 to January 2016. Significant differences in the phytoplankton community structure were observed at spatial (particularly between Huangpu/Tiaoxi and the other 4 river systems) and seasonal scales. On a spatial basis, high variability was observed in the mean phytoplankton biomass, with a relatively high value of 3.13 mg L−1 in Yanjiang system and a relatively low value in Huangpu (1.23 mg L−1) and Tiaoxi (1.44 mg L−1) systems. The mean biomass of potential toxic cyanobacteria accounted for 18.28% of the mean total biomass spatially, which was more abundant in Nanhe and Yanjiang systems. Spatial autocorrelation was weak for the total biomass and its four main components (bacillariophyta, chlorophyta, euglenophyta, and cyanobacteria) at whole basin scale regardless of season. Regarding the river system, significant autocorrelation was scarcely observed in all the river systems except Huangpu, especially in the inflows. The characteristic in terms of hydrological and environmental conditions may determine the community structure of the 6 river systems. Our study highlighted the importance of monitoring based on a large spatial scale, and more attention should be paid to potential toxic cyanobacteria for water quality management purposes.

Published
2019
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18. Additional file 1 of The bacterial community composition and its environmental drivers in the rivers around eutrophic Chaohu Lake, China

Author

Shao, Keqiang, Yao, Xin, Wu, Zhaoshi, Jiang, Xingyu, Hu, Yang, Tang, Xiangming, Xu, Qiujin, and Gao, Guang

Abstract

Additional file 1: Figure S1. Rarefaction curves of the number of operational taxonomic units (OTUs) at 97% similarity boxplot for each of 88 samples. Figure S2. UPGMA result based on the unweighted Unifrac metric. The hierarchical clustering structure helps to determine the similarity of the bacterial communities between different samples.

Published
2021
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20. Temporal microcystin dynamics of the source water and finished water in a waterworks of Lake Taihu

Author

Fan Yamin, Jiang Weili, WU Zhaoshi, Chang Wenjie, and Liu Baogui

Subjects
chemistry.chemical_classification, 021110 strategic, defence & security studies, 0211 other engineering and technologies, 02 engineering and technology, Microcystin, 010501 environmental sciences, Aquatic Science, 01 natural sciences, Pollution, chemistry, Source water, Environmental chemistry, Earth and Planetary Sciences (miscellaneous), Environmental science, 0105 earth and related environmental sciences, Water Science and Technology
Published
2018

30. Assemblage structure investigation of macrozoobenthos and water quality bioassessment of the main river systems in Taihu Basin

Author

Gao Junfeng, Chen Yuwei, Shao Xiaoyang, Cai Yongjiu, and WU Zhaoshi

Subjects
Hydrology, Biomass (ecology), biology, Ecology, Main river, Aquatic Science, biology.organism_classification, Pollution, Correspondence analysis, Gammarus, Earth and Planetary Sciences (miscellaneous), Chironomus plumosus, Environmental science, Bellamya aeruginosa, Water quality, Corbicula fluminea, Water Science and Technology
Abstract

Aimed at characterizing the assemblage structure of macrozoobenthos,identifying the key influencing environmental factors and evaluating the water quality in terms of biological indexes,we investigated macrozoobenthos at 73 sites of the five river systems(Rivers Tiaoxi,Nanhe,Taoge,Huangpu and Yanjiang)within Taihu Basin during April and June of 2010.Total 88 species from 48 families,8 classes and 3 phyla have been found in the investigations.The mean density of macrozoobenthos was 5888.91ind./m2,in which the proportion of oligochaetes was 94.19%.The mean biomass of macrozoobenthos was 105.18g/m2,of gastropods with 72.50% in total biomass.Limnodrilus hoffmeisteri was the dominant species in all river systems.One-way analysis of similarity(ANOSIM)showed that macrozoobenthos assemblages in the Yanjinag River system differed significantly from other four river systems,and those of Tiaoxi and the Taoge River systems differed significantly.L.hoffmeisteri was primarily responsible for dissimilarities of macrozoobenthos assemblages among the five river systems,followed by Bellamya aeruginosa,Branchiura sowerbyi,Chironomus plumosus,Gammarus sp.,Propsilocerus akamusi,Corbicula fluminea,Microchironomus sp.,Chironominae sp.,Glyptotendipes lobiferus,Tanypus chinensis and Alocinma longicornis.Canonical Correspondence Analysis showed that CODMn,PO4-P,TN and NO3-N were strongly correlated with the macrozoobenthos assemblages.The results of bioassessment using the BPI and the Wright Indexes indicated that the five river systems were mostly at status of intermediate polluted.

Published
2011

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