Teresa Radziejewska, professor at the University of Szczecin, specialising in benthic meiofauna and deep-sea ecology; participated in research on Pacific’s Clarion- Clipperton Zone polymetallic nodule field as well as in a number of projects associated with activities of the International Seabed Authority activities. Jan Marcin Węsławski, professor at Polish Academy of Sciences’ Institute of Oceanology, specialising in marine ecology and climate-biodiversity relationships; most of his research is focused on the European Arctic, including deep North Atlantic areas. Michał Tomczak - PhD, chief geologist at the Polish Geological Institute - National Research Institute, scientific chief of the Polish contract with the International Seabed Authority for exploration of seafloor massive sulphides (SMS) within the Mid-Atlantic Ridge.