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  • Title: [Effects of sulfate on the community structure of phytoplankton in freshwater].
    Author: Zhong Y, Fan J, Liu CG, Zhuang YY.
    Journal: Huan Jing Ke Xue; 2009 Aug 15; 30(8):2253-8. PubMed ID: 19799283.
    Abstract:
    In order to promote the understanding of sulfate enrichment on the growth and succession of phytoplankton communities in eutrophic freshwater body, laboratory experiment of phytoplankton in a landscape water body was conducted. Three treatment groups were set up in experiment:control (G0), step by step enrichment (G1) and enrichment at a time (G2). The result indicated that the addition of sulfate promoted the increase of Chlorophyta species and biomass, while inhibited the growth of native Cyanobacteria and diatom species. Species and biomass of G0, G1 group were similar and much higher than those of G2 group. Average biomass of GO, Gland G2 group was 98.46, 96.09 and 81.19 mg x L(-1), respectively. G0 group was almost always dominated by Cyanobacteria species such as P. corium and O. amphibia, dominant species in G1 and G2 groups changed from Cyanobacteria species to Chlorophyta species including S. quadricauda, G. radiate and S. obliqus. Compared with that of control group G0 (1.49 +/- 0.32, the average community diversity indices of G1 (1.70 +/- 0.18) and G2 groups (1.68 +/- 0.40) were elevated.
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