Recruitment of total phytoplankton, chlorophytes and cyanobacteria from lake sediments recorded by photosynthetic pigments in a large, shallow lake (Lake Taihu, China)

Huan Sheng Cao, Fan Xiang Kong, Jian Kang Tan, Xiao Feng Zhang, Yi Tao, Zhou Yang

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

Recruitment of total phytoplankton, chlorophytes and cyanobacteria from lake sediments to the water column was studied using photosynthetic pigments at one site (1.5 m) in Lake Taihu, a large shallow lake in China. Samples were taken weekly from the migration traps installed on the bottom from March to May 2004. Abundance of total phytoplankton, chlorophytes and cyanobacteria were represented by Chlorophyll (Chl) a, b, and phycocyanin (PC), respectively. Over the three months, total phytoplankton, chlorophytes, and cyanobacteria corresponding to 48.9%, 68.9% and 316.2% of their initial concentrations in surface sediments were recruited in Lake Taihu. However, compared with their increase in pelagic abundance over the same period, the recruitment accounted for a rather small inoculum. Accompanying the recruitment, total phytoplankton and chlorophytes declined and cyanobacteria increased in the upper 0-2 cm sediments; colonies of Microcystis aeruginosa in the water column enlarged from small size with several cells to large colonies with hundreds of cells. Thus, overwintering and subsequent growth renewal of pelagic phytoplankton merits further study and comparison with benthic survival and recruitment.

Original languageEnglish (US)
Pages (from-to)347-357
Number of pages11
JournalInternational Review of Hydrobiology
Volume90
Issue number4
DOIs
StatePublished - Sep 1 2005

Keywords

  • Colony size
  • Microcystis aeruginosa
  • Photosynthetic pigments
  • Recruitment
  • Shallow lake

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

Fingerprint Dive into the research topics of 'Recruitment of total phytoplankton, chlorophytes and cyanobacteria from lake sediments recorded by photosynthetic pigments in a large, shallow lake (Lake Taihu, China)'. Together they form a unique fingerprint.

  • Cite this