About the Authors

Sebastian D. Rokitta

Sebastian.Rokitta@awi.de

Affiliation Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany

Uwe John

Affiliation Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany

Björn Rost

Affiliation Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SDR UJ BR. Performed the experiments: SDR. Analyzed the data: SDR UJ. Contributed reagents/materials/analysis tools: UJ. Wrote the paper: SDR UJ BR.