Seasonal dynamics of picocyanobacteria and picoeukaryotes in a large shallow lake (Lake Balaton, Hungary)

Andrea Mózes, M. Présing, Lajos Vörös

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The abundance and composition of autotrophic picoplankton (APP) were studied between February 2003 and March 2004 in Lake Balaton. Water samples were taken fortnightly in the eutrophic western basin and mesotrophic eastern basin. Our study, which took more than one year, revealed pronounced seasonal pattern of the picoplankton abundance and composition. According to our results there were three types of picoplankton in Lake Balaton: 1. Phycoerythrin-rich coccoid cyanobacteria (PE), dominant summer picoplankters in the mesotrophic lake area; 2. Phycocyanin-rich cyanobacteria (PC), the most abundant summer picoplankters in the eutrophic lake area; 3. Picoeukaryotes, dominant winter picoplankters in the whole lake. The observed abundance of picoeukaryotes (3 × 10 5 cells ml-1) was one of the highest ever found. Our study confirms that in Lake Balaton the colonial autotrophic picoplankton (colonial APP) become dominant in summer in the nutrient limited period. We have found strong negative relationship between the concentrations of available nitrogen forms (NH4-N, NO3-N, urea-N) and the colonial APP abundance.

Original languageEnglish
Pages (from-to)38-50
Number of pages13
JournalInternational Review of Hydrobiology
Volume91
Issue number1
DOIs
Publication statusPublished - 2006

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picoplankton
Hungary
lakes
lake
Cyanobacteria
cyanobacterium
summer
basins
basin
urea
seasonal variation
winter
nutrient
nitrogen
nutrients
water
cells
sampling

Keywords

  • Available nitrogen
  • Colony forming picoalgae
  • Light attenuation
  • Phycocyanin
  • Phycoerythrin

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Seasonal dynamics of picocyanobacteria and picoeukaryotes in a large shallow lake (Lake Balaton, Hungary). / Mózes, Andrea; Présing, M.; Vörös, Lajos.

In: International Review of Hydrobiology, Vol. 91, No. 1, 2006, p. 38-50.

Research output: Contribution to journalArticle

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