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Table 1 Phytoplankton succession in Lake Datong

From: Effects of aquaculture on the shallow lake aquatic ecological environment of Lake Datong, China

Years Number of species Abundance and biomass Dominant species H value J value D value References
1960 Winter 5 domain 2,180,000 ind/L Cyanobacteria: 69.7%     [53]
1997 8 domain, 64 genus 1,780,000 ind/L      [54]
2005 Spring 6 domain, 12 genus 1,724,000 ind/L; 3.156 mg/L      [55]
2008–2009 7 domain, 54 genus, 98 species 1,640,000 ind/L Summer;
1,710,000 ind/L winter
  Average value: 2.045
Highest in winter: 2.69
Lowest in summer: 1.26
Average value: 1.037
Highest in winter: 1.27
Lowest in summer: 0.69
Average value: 3.11
Highest in spring: 4.55
Lowest in autumn: 2.25
[56]
2011 Summer 5 domain, 29 species 8,560,000 ind/L Cyanobacteria: 65.34%     [57]
2011–2012   1,850,000–61,000,000 ind/L Cryptophyta: 50–90%     [58]
2013–2014 7 domain, 80 species 6.58 ± 0.66 × 104 ind/L; 0.16 ± 0.05 mg/L Euglenophyta: Euglena polymorpha; Cryptophyta: Cryptomonas ovata, Chroomonas acuta, Bacillariophyta: Cyclotlla caclotella; Chlorophyta: Chlorella vulgaris, Chlamydomonas incerta, Scenedesmus quadricauda Average value: 1.24
Highest in August: 2.08
Lowest in November: 0.72
Average value: 0.68
Highest in May: 0.86
Lowest in November: 0.31
Average value: 0.75
Highest in August: 1.15
Lowest in April: 0.38
[59]
2019 Summer 8 phylum, 197 species 1 020 765 ind./L; 0.871 mg/L Chlorophyta 3.241–3.806, Average value: 3.549 0.4463–0.587, Average value: 0.555 4.093–6.792, Average value: 6.773
  1. H-index: Shannon diversity index; J-index: Pielou evenness index; D-index: Margalef richness index