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- Title
Removal of Microcystins by Phototrophic Biofilms: A Microcosm Study.
- Authors
Babica, Pavel; Bláha, Ludĕk; Maršáek, Blahoslav
- Abstract
The article examines the role of river-originated phototropic biofilms in microcystins (MC) degradation and the factors influencing their rate of removal. Glass substrata were covered by phototrophic biofilms dominated by coccal green alga Oocystis lacustris. The biofilms were stabilised and pre-incubated in the outdoor lotic mesocosm with natural river water under two experimental variants containing either planktonic algae without cyanobacteria or natural cyanobacterial water bloom. The slow degradation of MC was noticed in tap water and river water without cyanobacteria. More rapid MC elimination occurred in the variants containing phototrophic biofilms. Finally total amounts of MCs accumulated in the biofilms were below 5% of the initial toxin level revealing significant biodegradation processes.
- Subjects
MICROCYSTINS; BIOFILMS; MICROBIAL ecology; BACTERIAL toxins; CHEMICAL decomposition; AQUATIC resources
- Publication
Environmental Science & Pollution Research, 2005, Vol 12, Issue 6, p369
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1065/espr2005.05.259