The Björn Carlsons Östersjöpris 2023 is awarded to Jacob Carstensen, Professor in Marine System Management at the Department of Ecoscience, Aarhus University, Denmark and Daniel Conley, Professor in Biogeochemistry, at the Department of Geology, Lund University, Sweden. The prize of SEK 3 million was awarded on September 26 by H.R.H. Crown Princess Victoria at the Grand Hotel in Stockholm, Sweden. 

Jacob Carstensen and Daniel Conley are awarded for playing critical roles in shaping key research on eutrophication, water quality, hypoxia, and underlying biogeochemical processes in the Baltic Sea. Through groundbreaking collaboration, Carstensen and Conley have combined expertise from different fields, and thus, their research has transformed, developed and broadened this field of research.