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Microcystin occurrence in lakes in Åland, SW Finland

  • Tore Lindholm*
  • , Pia Vesterkvist
  • , Lisa Spoof
  • , Catharina Lundberg-Niinistö
  • , Jussi Meriluoto
  • *Korresponderande författare för detta arbete

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

26 Citeringar (Scopus)

Sammanfattning

Samples from a total of 134 lakes, practically all freshwater lakes in Åland, SW Finland, were screened for microcystins, hepatotoxic peptides of cyanobacteria, using high performance liquid chromatography (HPLC), time-resolved fluoroimmunoassay (TR-FIA), and protein phosphatase inhibition (PPIA) during two summers. Microcystins were recorded in 4 of 54 lakes in 1999 and 14 of 134 lakes in 2000, especially in eutrophic lakes but also in some dystrophic lakes and one oligotrophic. There was a satisfactory agreement between results obtained with different methods. The most likely microcystin-producers involved, as judged by microscopical examination, were Planktothrix agardhii, Microcystis aeruginosa, and Anabaena lemmermannii. One drinking-water reservoir and several lakes used for irrigation were microcystin-positive. Microcystins were also detected in late autumn samples from some eutrophic lakes.

OriginalspråkEngelska
Sidor (från-till)129-138
Antal sidor10
TidskriftHydrobiologia
Volym505
DOI
StatusPublicerad - 15 sep. 2003
MoE-publikationstypA1 Tidskriftsartikel-refererad

Finansiering

We thank the Svenska Kulturfonden, the Academy of Finland (RC for Natural Sciences and Engineering, project 47664), the Provincial Government of Åland and the Magnus Ehrnrooth Foundation for financial support. Dr Andrey Mikhailov and Prof. John Eriksson are gratefully acknowledged for the antibodies. We thank Husö Biological Station (Åbo Akademi University) for excellent working conditions.

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