Phytoplankton have a massive role in aquatic ecosystems because the entire food web, including fish production, is dependent on the energy and nutrients produced by phytoplankton. Therefore, it is fundamental to a gain full understanding of the factors and circumstances that affect phytoplankton biomass and community structure. In this project, we investigate the availability and ecological role of vitamin B12 in lakes located in Northern and Central Europe. In marine environments vitamin B12 can limit primary production and alter phytoplankton community structure, but these aspects have not been studied before in any freshwater ecosystem. The research is conducted at the University of Eastern Finland in collaboration with national and international researchers.

2021

2026