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Spatio-temporal variability of periphytic protozoa related to environment in the Niyang River, Tibet, China
Liu Haiping1,2,3; Ye Shaowen1; Yang Xuefeng4; Guo Chuanbo1; Zhang Huijuan3; Fan Liqing3; Zhang Liangsong5; Sovan Lek6; Li Zhongjie1
2017-05-01
Source PublicationCHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN0254-4059
Volume35Issue:3Pages:489-500
AbstractThe Niyang River, a main tributary of the Yarlung Zangbo River, is an important and typical plateau river ecosystem in Tibet, China. At present, few studies have focused on its aquatic living resources and river ecology. In this study, the composition, abundance, and diversity of periphytic protozoa were investigated across four seasons from 2008 to 2009 to better understand their spatio-temporal patterns and relationship to the environment. Our investigation shows that periphytic protozoa in the Niyang River contained 15 genera, belonged to Tubulinea, Alveolata, Discosea and Rhizaria, Alveolata possessed most genera, up to nine, with highest share in abundance, exceeding 50%, Difflugia and Glaucoma were dominant genera. Moreover, four diversity indices of periphytic protozoa, including species richness, total abundance, Shannon-Wiener diversity index and Pielou's evenness index, displayed a significant descending trend as the seasons continued, in the order of winter, spring, summer and autumn; with a significant difference existing between winter and summer (or autumn) for Shannon-Wiener diversity index and species richness (P < 0.05). Four of these diversity indices also presented a V-shaped pattern between the upper middle course of the Niyang River and the confluence of the Niyang River and Yarlung Zangbo River, with the lowest value occurred in the middle course of the Niyang River. However, no significant variation was found through the Niyang River (P > 0.05). In addition, canonical correlation analysis (CCA) shows that the densities of Difflugia, Glaucomais, Enchelydium, Cyphoderia, and Enchelys correlate with water temperature, alkalinity, hardness, pH, and dissolved oxygen, respectively. Lastly, the relationship between periphytic protozoa diversity and the environmental factors of the Niyang River can be predicted using classification and regression trees (CART) annalysis, which suggests that the total abundance and Shannon-Wiener diversity index would be higher when the elevation is above 3 308 m. On the other hand, the Shannon-Wiener diversity index and Pielou's evenness index would be lower when pH and ammoniacal nitrogen have lower or higher values. Finally yet importantly, close attention should be paid to periphytic protozoa and its environment to ensure sustainable development of the Niyang River ecosystem.
SubtypeArticle
KeywordTibetan Plateau Niyang River Periphytic Protozoa Environment Spatio-temporal Dynamic
DOI10.1007/s00343-017-5274-7
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS KeywordTINTINNIDS CILIATA PROTOZOA ; FREE-LIVING PROTOZOA ; COMMUNITY COMPOSITION ; WATER-QUALITY ; ABUNDANCE ; TEMPERATURE ; DIVERSITY ; REGIONS ; BIOMASS ; INDIA
WOS IDWOS:000399168400003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/29208
Collection淡水生态学研究中心
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Tibet Univ, Agr & Anim Husb Coll, Linzhi 860000, Peoples R China
4.Xilinhot 6 Middle Sch, Xilinhot 026000, Peoples R China
5.Fujian Marine Prod Tech Promot Stn, Fuzhou 350003, Peoples R China
6.Univ Paul Sabatier, CNRS, UMR EDB 5174, 118 Route Narbonne, Toulouse, France
Recommended Citation
GB/T 7714
Liu Haiping,Ye Shaowen,Yang Xuefeng,et al. Spatio-temporal variability of periphytic protozoa related to environment in the Niyang River, Tibet, China[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2017,35(3):489-500.
APA Liu Haiping.,Ye Shaowen.,Yang Xuefeng.,Guo Chuanbo.,Zhang Huijuan.,...&Li Zhongjie.(2017).Spatio-temporal variability of periphytic protozoa related to environment in the Niyang River, Tibet, China.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,35(3),489-500.
MLA Liu Haiping,et al."Spatio-temporal variability of periphytic protozoa related to environment in the Niyang River, Tibet, China".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 35.3(2017):489-500.
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