About the Authors

Melanie J. Underwood

melanie.underwood@imr.no

Affiliations Institute of Marine Research, Bergen, Norway, Department of Biology, University of Bergen, Bergen, Norway

Shale Rosen

Affiliation Institute of Marine Research, Bergen, Norway

Arill Engås

Affiliations Institute of Marine Research, Bergen, Norway, Department of Biology, University of Bergen, Bergen, Norway

Elena Eriksen

Affiliation Institute of Marine Research, Bergen, Norway

Competing Interests

The authors have read the journal's policy and have the following conflicts: One of the authors was employed by Scantrol AS during data collection and analysis. Scantrol AS had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Author Contributions

Conceived and designed the experiments: SR AA EE. Performed the experiments: SR AA EE. Analyzed the data: MU SR. Contributed reagents/materials/analysis tools: MU SR. Wrote the paper: MU SR AA EE.