Population dynamics of the freshwater dinoflagellate Ceratium hirundinella in the largest shallow lake of Central Europe, Lake Balaton, Hungary.

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Abstract

Horizontal distribution, long-term (1933-82) and short-term (day-to-day) changes in abundance, vertical stratification and circadian rhythm of Ceratium hirundinella were studied. Lowest abundance was consistently found in those areas of the lake which had the strongest currents. Density seemed to be, at least in those parts of the lake above the level of fertility considered oligotrophic, insensitive to changes in trophic conditions; only its relative contribution to total biomass decreased with increased enrichment. During the day the bulk of the population stayed at a level in which the light intensity was 126-440 mu E m-2s-1 PAR.-from Author

Original languageEnglish
Pages (from-to)43-52
Number of pages10
JournalFreshwater Biology
Volume15
Issue number1
Publication statusPublished - 1985

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Central European region
Hungary
dinoflagellate
population dynamics
trophic conditions
lakes
circadian rhythm
lake
photosynthetically active radiation
light intensity
fertility
stratification
biomass
Europe
Ceratium
Miozoa
distribution

ASJC Scopus subject areas

  • Aquatic Science

Cite this

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AB - Horizontal distribution, long-term (1933-82) and short-term (day-to-day) changes in abundance, vertical stratification and circadian rhythm of Ceratium hirundinella were studied. Lowest abundance was consistently found in those areas of the lake which had the strongest currents. Density seemed to be, at least in those parts of the lake above the level of fertility considered oligotrophic, insensitive to changes in trophic conditions; only its relative contribution to total biomass decreased with increased enrichment. During the day the bulk of the population stayed at a level in which the light intensity was 126-440 mu E m-2s-1 PAR.-from Author

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