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The bacterioplankton of Lake Taihu, China: abundance, biomass, and production

  • Guang GaoEmail author
  • Boqiang Qin
  • Ruben Sommaruga
  • Roland Psenner
Part of the Developments in Hydrobiology book series (DIHY, volume 194)

Abstract

Abundance, biomass and production of pelagic bacteria were examined over one year at monthly sampling intervals across a trophic profile in Meiliang Bay, Lake Taihu. With the lowest density in the open lake, the bacterial abundance showed a clear trend in relation to trophic status. The carbon content per cell was higher in autumn and winter, and the opposite was true for bacterial biomass. Bacterial 3[H]-TdR and 14[C]-Leu incorporation rates, cell production, turnover times and carbon production varied during the annual cycle at different sites. The ratio of bacterial production to primary production was high, independently of the method used, indicates that the microbial food web in Lake Taihu is an important component of the total food web of the lake and dominated by external inputs.

Keywords

Eutrophication Trophic status Bacterial biomass Bacterial production Lake Taihu 

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Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Guang Gao
    • 1
    Email author
  • Boqiang Qin
    • 1
  • Ruben Sommaruga
    • 2
  • Roland Psenner
    • 2
  1. 1.Nanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjingP.R. China
  2. 2.Institute of EcologyUniversity of InnsbruckInnsbruckAustria

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