1. Department of Biomedicine, University of Bergen, 5009 Bergen, Norway
2. Institute of Cytology, Russian Academy of Sciences, 194064 St. Petersburg, Russia
3. Institute of Nanobiotechnologies, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
4. Department of Arctic and Marine Biology, UiT The Arctic University of Norway, 9037 Tromsø, Norway