A study published today suggests that Baltic cod caught near shore in the Stone Age were much larger than those harvested by trawlers in 21 century.
The study called ‘Prehistoric vs. modern Baltic Sea cod fisheries: observations across the millennia’ was carried out by Karin Limburg at SUNY College of Environmental Science and Forestry (ESF) in Syracuse, N.Y, together with Yvonne Walther of the Swedish National Board of Fisheries, Bongghi Hong of ESF, Carina Olson at the University of Stockholm, and Jan Storå at the University of Stockholm. The scientists used 4,500-year-old earstones, known as otoliths, and vertebrae from Baltic cod found in a pre-Viking settlement on the Swedish island of Gotland, to estimate the size of cod caught in the Baltic Sea during the Stone Age.
A summary of the report by innovationsreport.de can be seen below.