Occurrence and mass development of Mougeotia spp. (Zygnemataceae) in large, deep lakes

Kálmán Tapolczai, Orlane Anneville, J. Padisák, Nico Salmaso, Giuseppe Morabito, Tamar Zohary, Rémy D. Tadonléké, Frédéric Rimet

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Over the last decades, mass developments by the filamentous conjugating green alga Mougeotia have been followed in three large peri-alpine lakes (Lake Geneva, Lake Garda, Lake Maggiore) and in the sub-tropical Lake Kinneret. The aim of this study is to highlight annual and interannual patterns of Mougeotia biomass in the studied lakes and select key environmental parameters that may favour and maintain its mass development. Our results confirm former studies that planktic Mougeotia favours meso-oligotrophic conditions and becomes dominant when annual mean total phosphorus concentrations in the epilimnion fall below 20 µg l−1. This triggering factor has effect with interactions of other environmental circumstances such as the water column stability. Physiological and morphological features of the taxon make it a successful competitor under stratified conditions. Results also showed that in three out of the four studied lakes, the annual peak was higher when the annual population development started earlier. Focusing on Lake Geneva, depth and strength of the thermocline, as well as wind speed in the beginning of summer that can cause nutrient replenishment and mix the epilimnion are key factors in the blooming of the taxon.

Original languageEnglish
Pages (from-to)17-29
Number of pages13
JournalHydrobiologia
Volume745
Issue number1
DOIs
Publication statusPublished - Dec 19 2014

Fingerprint

Zygnemataceae
Mougeotia
lakes
Lake Geneva
lake
Lake Maggiore
epilimnion
wind speed
Chlorophyta
early development
filamentous alga
phosphorus
thermocline
green alga
summer
biomass
nutrients
wind velocity
water column

Keywords

  • Bloom
  • Filamentous algae
  • Phosphorus
  • Phytoplankton
  • Stratification
  • Wind

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Tapolczai, K., Anneville, O., Padisák, J., Salmaso, N., Morabito, G., Zohary, T., ... Rimet, F. (2014). Occurrence and mass development of Mougeotia spp. (Zygnemataceae) in large, deep lakes. Hydrobiologia, 745(1), 17-29. https://doi.org/10.1007/s10750-014-2086-z

Occurrence and mass development of Mougeotia spp. (Zygnemataceae) in large, deep lakes. / Tapolczai, Kálmán; Anneville, Orlane; Padisák, J.; Salmaso, Nico; Morabito, Giuseppe; Zohary, Tamar; Tadonléké, Rémy D.; Rimet, Frédéric.

In: Hydrobiologia, Vol. 745, No. 1, 19.12.2014, p. 17-29.

Research output: Contribution to journalArticle

Tapolczai, K, Anneville, O, Padisák, J, Salmaso, N, Morabito, G, Zohary, T, Tadonléké, RD & Rimet, F 2014, 'Occurrence and mass development of Mougeotia spp. (Zygnemataceae) in large, deep lakes', Hydrobiologia, vol. 745, no. 1, pp. 17-29. https://doi.org/10.1007/s10750-014-2086-z
Tapolczai, Kálmán ; Anneville, Orlane ; Padisák, J. ; Salmaso, Nico ; Morabito, Giuseppe ; Zohary, Tamar ; Tadonléké, Rémy D. ; Rimet, Frédéric. / Occurrence and mass development of Mougeotia spp. (Zygnemataceae) in large, deep lakes. In: Hydrobiologia. 2014 ; Vol. 745, No. 1. pp. 17-29.
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