Primary production of epipsammic algal communities in Lake Balaton (Hungary)

Viktória Üveges, Lajos Vörös, J. Padisák, Attila W. Kovács

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Benthic algal communities can play an important role in matter and energy flux of shallow lakes. Their contribution to total primary production of lakes has been largely unexplored. The aim of this study was to estimate the primary production of the epipsammic algal communities at different water depths in Lake Balaton (Hungary) with photosynthetic measurements performed in laboratory. The photosynthesis of the benthic algae of different origin was studied at nine different irradiance levels, in three replicates. The maximum photosynthetic rate (Pmax) was always higher in samples from the shallow parts than those from the deeper regions of the lake. Along the west-east longitudinal axis of the lake Pmax decreased in the southern part and increased in the middle of the lake as a consequence of differences in the chlorophyll-a concentrations. Knowing Pmax, Ik, global radiation and extinction coefficient, the primary production (mg C m-2 day-1) of the epipsammic algal community was calculated at different water depths. In the shallow regions at 0.5 and 1 m water depth 75-95% and 60-85% of the production was attributable to the epipsammon. The percentage contribution of epipsammon was at 2 m water depth 20-65%. In the deeper pelagic region (>3 m) more than 85% of the primary production originated from the phytoplankton.

Original languageEnglish
Pages (from-to)17-27
Number of pages11
JournalHydrobiologia
Volume660
Issue number1
DOIs
Publication statusPublished - 2011

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algal community
Hungary
primary production
primary productivity
lakes
water depth
lake
algae
water
extinction coefficient
energy flux
irradiance
light intensity
chlorophyll a
photosynthesis
extinction
phytoplankton
alga
chlorophyll
energy

Keywords

  • Epipsammic algal communities
  • Laboratory measurement
  • Lake Balaton
  • P
  • Primary production

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Primary production of epipsammic algal communities in Lake Balaton (Hungary). / Üveges, Viktória; Vörös, Lajos; Padisák, J.; Kovács, Attila W.

In: Hydrobiologia, Vol. 660, No. 1, 2011, p. 17-27.

Research output: Contribution to journalArticle

Üveges, Viktória ; Vörös, Lajos ; Padisák, J. ; Kovács, Attila W. / Primary production of epipsammic algal communities in Lake Balaton (Hungary). In: Hydrobiologia. 2011 ; Vol. 660, No. 1. pp. 17-27.
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