Presence of potential toxin-producing cyanobacteria in an oligo-mesotrophic lake in Baltic lake district, Germany: An ecological, Genetic and toxicological survey

Pawan K. Dadheech, Géza B. Selmeczy, G. Vasas, J. Padisák, Wolfgang Arp, Kálmán Tapolczai, Peter Casper, Lothar Krienitz

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Massive developments of potentially toxic cyanobacteria in Lake Stechlin, an oligo-mesotrophic lake in the Baltic Lake District of Germany raised concerns about toxic contamination of these important ecosystems. Field samples in the phase of mass developments of cyanobacteria were used for genetic and toxicological analyses. Microcystins and microcystin genes were detected in field samples of the lake for the first time. However, the toxins were not produced by the dominant taxa (Dolichospermum circinale and Aphanizomenon flos-aquae) but by taxa, which were present only in low biomass in the samples (Microcystis cf. aeruginosa and Planktothrix rubescens). The phytoplankton successions during the study period revealed an increase of cyanobacterial populations. The findings contribute to the changes that have been investigated in Lake Stechlin since the mid-1990s. The possible reasons behind these developments may be climate change, special weather conditions and an increased nutrient pool.

Original languageEnglish
Pages (from-to)2912-2931
Number of pages20
JournalToxins
Volume6
Issue number10
DOIs
Publication statusPublished - 2014

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Lakes
Toxicology
Germany
Poisons
Cyanobacteria
Aphanizomenon
Microcystins
Microcystis
Phytoplankton
Climate Change
Weather
Climate change
Biomass
Ecosystems
Nutrients
Ecosystem
Contamination
Genes
cyanobacterial toxin
Surveys and Questionnaires

Keywords

  • Aphanizomenon
  • Cyanotoxins
  • Dolichospermum
  • Lake Stechlin
  • Microcystin
  • Microcystis
  • Planktothrix

ASJC Scopus subject areas

  • Toxicology
  • Health, Toxicology and Mutagenesis
  • Medicine(all)

Cite this

Presence of potential toxin-producing cyanobacteria in an oligo-mesotrophic lake in Baltic lake district, Germany : An ecological, Genetic and toxicological survey. / Dadheech, Pawan K.; Selmeczy, Géza B.; Vasas, G.; Padisák, J.; Arp, Wolfgang; Tapolczai, Kálmán; Casper, Peter; Krienitz, Lothar.

In: Toxins, Vol. 6, No. 10, 2014, p. 2912-2931.

Research output: Contribution to journalArticle

Dadheech, Pawan K. ; Selmeczy, Géza B. ; Vasas, G. ; Padisák, J. ; Arp, Wolfgang ; Tapolczai, Kálmán ; Casper, Peter ; Krienitz, Lothar. / Presence of potential toxin-producing cyanobacteria in an oligo-mesotrophic lake in Baltic lake district, Germany : An ecological, Genetic and toxicological survey. In: Toxins. 2014 ; Vol. 6, No. 10. pp. 2912-2931.
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