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Water 2016, 8(12), 565; doi:10.3390/w8120565

Use of Multi-Carbon Sources by Zooplankton in an Oligotrophic Lake in the Tibetan Plateau

State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing 210008, China
University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
Sino-Danish Centre for Education and Research/Sino-Danish College of University of Chinese Academy of Sciences, Beijing 100190, China
Department of Bioscience, Aarhus University, Vejlsøvej 25, 8600 Silkeborg, Denmark
Institute of Hydrobiology, Jinan University, 601 West Huangpu Street, Guangzhou 510632, China
Author to whom correspondence should be addressed.
Academic Editor: Clelia Luisa Marti
Received: 25 October 2016 / Revised: 17 November 2016 / Accepted: 28 November 2016 / Published: 1 December 2016
(This article belongs to the Special Issue Ecological Responses of Lakes to Climate Change)
View Full-Text   |   Download PDF [791 KB, uploaded 1 December 2016]   |  


We applied natural abundance stable isotope δ13C and radiocarbon ∆14C analyses to investigate trophic linkages between zooplankton and their potential food sources (phytoplankton, submersed plants, and allochthonous organic carbon) in Lake Nam Co, one of the largest oligosaline and oligotrophic lakes in the Tibetan Plateau, in south-west China. The δ13C and ∆14C levels of the calanoid copepod Arctodiaptomus altissimus pectinatus indicate that it uses different carbon sources. Thus, based on a two-isotope mixing model, our results suggested that recently synthesized but 14C-depleted primary producers (phytoplankton and submersed plants) were the most important sources of carbon, together contributing 92.2% of the zooplankton biomass. Allochthonous organic carbon and dissolved organic carbon constituted 4.7% and 3.1% of the carbon in the diet of zooplankton, respectively. Our findings from Lake Nam Co suggest that the carbon in the food webs of lakes located in a glaciated environment originates from various sources of different ages. View Full-Text
Keywords: zooplankton; carbon sources; stable carbon isotope; radiocarbon isotope; Lake Nam Co; Tibetan Plateau zooplankton; carbon sources; stable carbon isotope; radiocarbon isotope; Lake Nam Co; Tibetan Plateau

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hu, E.; He, H.; Su, Y.; Jeppesen, E.; Liu, Z. Use of Multi-Carbon Sources by Zooplankton in an Oligotrophic Lake in the Tibetan Plateau. Water 2016, 8, 565.

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