2011 May Askö research station	Phosphate fluxes during Spring - Stockholm archipelago coworkers: Helle Ploug, Jennie Svedén, Dept. of Systems Ecology, University of Stockholm
2010 August Askö research station	Phosphate fluxes during Summer - Stockholm archipelago coworkers: Helle Ploug, Jennie Svedén, Jakob Walve, Dept. of Systems Ecology, University of Stockholm
2010 April Askö research station	Picocyanobacteria in the Baltic Sea - Stockholm archipelago coworkers: Helle Ploug, Jennie Svedén, Jakob Walve, Nisha Tolani, Dept. of Systems Ecology, University of Stockholm Marcel Günter, MPI Bremen
2009 August Askö research station	Bacterial associates of cyanobacteria in the Baltic Sea - Stockholm archipelago coworkers: Helle Ploug, Dept. of Botany, University of Stockholm Marcel Günter, MPI Bremen
2009 August Askö research station	Bacterial associates of cyanobacteria in the Baltic Sea - Stockholm archipelago coworkers: Helle Ploug, Dept. of Botany, University of Stockholm Cristina Moraru, Gabriel Moraru, Marcel Günter, MPI Bremen