Workshop: Harmonisation of (sub)Arctic diatom taxonomy
Dates: 6-8 June 2023
Registration Deadline: 31 March
Location: Ecosystems and Environment Research Programme (ECOENV), University of Helsinki, Finland
Contact person: Kaarina Weckström

Workshop details

The workshop will be dedicated to integrating and agreeing upon a common taxonomy for Arctic sediment datasets. A key outcome of this workshop will be an outline of a taxonomic guide that includes descriptions of species morphology and ecology, images, and geographical distribution. This workshop will be hands-on and participants are encouraged to bring their own samples/slides. Microscopes will be available.

This workshop is the 2nd in the series of 4 planned MARDI (Marine ARctic DIatoms) workshops, each of which builds on the previous workshop and plays a crucial part in achieving the overall MARDI goals.

Preliminary program

Workshop runs Tuesday 6 June 09:00 through Thursday 8 June 12:00. Discussion topics and activities:

  • Status of pan-Arctic diatom database: presentation of different datasets and taxonomic issues
  • Problematic taxa and challenges in Arctic marine diatom taxonomy
  • Sample preparation and counting methods
  • Laboratory visit
  • Multiple microscope sessions

Steering committee

Kaarina Weckström, University of Helsinki, Finland, organiser
Tiia Luostarinen, University of Helsinki, Finland, organiser
Mimmi Oksman, Geological Survey of Denmark and Greenland, Denmark, organiser
Beth Caissie, US Geological Survey, USA
Christof Pearce, Aarhus University, Denmark
Audrey Limoges, University of New Brunswick, Canada
Diana Krawczyk, Greenland Climate Research Center, Denmark
Arto Miettinen, University of Helsinki, Council of Finnish Academies, Finland
Jian Ren, Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources, China
Adrian Kryk, University of Szczecin, Poland
Joshua Evans, University of New Brunswick, Canada


    Deadline for registration: 31 March

    Financial Support

    Funding to cover accommodation, breakfasts & lunches, and (limited) travel expenses is available thanks to financial support from PAGES to the MARDI workshop. Early-career researchers will be prioritized if the demand for support exceeds the available funding.

    We have reserved a block of rooms at EuroHostel Helsinki for participants from 5-8 June. The accommodation will be in double rooms (43,80 euros/night/person) with shared bathrooms, and breakfast is included. A limited number of single rooms (69,30 euros/night/person) is available upon request.