The last this year quarterly seminar of the SatBałtyk Consortium took place on 20th December at 12:00 in the large IOPAN seminar room. At the meeting, lecture was presented by prof. Hanna Mazur-March, Dr. Justyna Kobos and Katarzyna Sutryk: "Blooms of cyanobacteria in the Baltic Sea (causes and effects) - state of knowledge". After the meeting an annual photo of participants was taken.