Fatawo Abdul Abubakar¹, Edem Mahu², Sophia Hines³, Benjamin O. Botwe¹, Gabriella Yeboah⁴, Maurice Oti Oti Edusei² and Rob Marchant⁵, (1)University of Ghana, Department of Marine and Fisheries Sciences, Accra, Ghana, (2)University of Ghana, Marine and Fisheries Sciences, Accra, Ghana, (3)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, United States, (4)University of Ghana, Department of Marine and Fisheries Science, Accra, Ghana, (5)University of York, York, United Kingdom