About the Authors

Joachim P. Gröger

joachim.groeger@t-online.de

Affiliations Thünen Institute of Sea Fisheries, Hamburg, Germany, Institute for Bio-Sciences, Rostock University, Rostock, Germany

Hans-Harald Hinrichsen

Affiliation GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany

Patrick Polte

Affiliation Thünen Institute of Baltic Sea Fisheries, Rostock, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: JPG HHH. Contributed reagents/materials/analysis tools: JPG HHH. Wrote the paper: JPG HHH PP.