AUTHOR=Meier H. E. Markus , Börgel Florian , Frauen Claudia , Radtke Hagen TITLE=Commentary: Lake or Sea? The Unknown Future of Central Baltic Sea Herring JOURNAL=Frontiers in Ecology and Evolution VOLUME=8 YEAR=2020 URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2020.00055 DOI=10.3389/fevo.2020.00055 ISSN=2296-701X