Jump to content

Finnish Environment Institute | Suomen ympäristökeskus | Finlands miljöcentral

sykefi header valkoinen

Microbial diversity in aquatic systems and effects of browning - MiDAS


Short address: www.syke.fi/projects/midas-aqua


Freshwater ecosystems support disproportionate levels of biodiversity compared to their spatial coverage, and are often referred to as hot spots of biodiversity. In particular, losses in phytoplankton and other microbial biodiversity may have detrimental consequences on aquatic primary production, elemental cycles, and sustainability of ecosystems.

Objectives of MiDAS project are

  1. describe the previously unseen hidden biodiversity of aquatic microbes in lakes
  2. increase understanding of the responses of aquatic microbial biodiversity to increasing allochthonous dissolved organic carbon (DOC) input, referred as browning
  3. study changes in diversity of taxon-specific bacteria associated with phytoplankton.


MiDAS flow-chart_EN

MiDAS will combine a novel high throughput 16S/18S rRNA gene targeting primer-free molecular sequencing approach, traditional light microscopy, and comprehensive microscopy-based phytoplankton datasets. The project will perform field studies as well as mesocosm and laboratory experiments. MiDAS will provide new insight into characterization of hidden/true aquatic microbial diversity, including eukaryotic phytoplankton, prokaryotic cyanobacteria and heterotrophic bacteria. Our results will also increase the understanding how browning affects the biodiversity in lakes.



More information

Kristiina Vuorio, Finnish Environment Institute, SYKE, firstname.surename(at)ymparisto.fi
Marko Järvinen, Finnish Environment Institute, SYKE, firstname.surename(at)ymparisto.fi


Published 2017-11-03 at 15:19, updated 2018-03-06 at 12:02

Target group: