1. Shirshov Institute of Oceanology Russian Academy of Sciences 36, Nahimovskiy prospekt Moscow 117997, Russia
2. A. Herzen State Pedagogical University Nab. Moyki 48 St. Petersburg 191186, Russia
3. Nature Research Centre Institute of Geology and Geography Akademijos Str. 2 Vilnius 08412, Lithuania
4. The Institute of Earth and Environmental Science Potsdam University Am Neuen Palais 10 Potsdam 14469, Germany
5. Research Unit Potsdam Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Telegrafenberg A43 Potsdam 14473, Germany
6. Kazan Federal University Kremlyovskaya str., 18 Kazan 420018, Russia
7. St. Petersburg State University Institutsky 29‐24 St. Petersburg 194021, Russia
8. Vilnius University M. K. Čiurlionio 21/27 Vilnius LT‐03101, Lithuania
9. Institute for Water and Environmental Problems of the Siberian Branch of the Russian Academy of Sciences Molodezhnaya str. 1 Barnaul 656038, Russia
10. Immanuel Kant Baltic Federal University A. Nevskogo str. 14 Kaliningrad 236016 Russia