Holger Brix¹, Edem Mahu², Fatawo Abdul Abubakar², Kwasi Appeaning Addo³, Senyo Adzah⁴, Donatus Yaw Atiglo⁵, Benjamin O. Botwe², Bughsin' Djath¹, Christiane Eschenbach¹, Christopher Gordon⁵, Benjamin Jacob⁶, Philip-Neri Jayson-Quashigah V³, David Kaiser¹, Joanna Staneva⁶, Bryce Van Dam¹ and Viktoria Wichert¹, (1)Helmholtz-Zentrum Hereon, Geesthacht, Germany, (2)University of Ghana, Department of Marine and Fisheries Sciences, Accra, Ghana, (3)University of Ghana, Marine and Fisheries Sciences, Accra, Ghana, (4)University of Ghana, Department of Marine and Fisheries Science, Legon, Accra, Ghana, (5)University of Ghana, Accra, Ghana, (6)Helmholtz-Zentrum Hereon, Institute of Coastal Systems-Analysis and Modelling, Geesthacht, Germany