About the Authors

Marta Söffker

marta.soffker@cefas.co.uk

Affiliation Centre for Environment, Fisheries & Aquaculture Science; Pakefield Rd, Lowestoft, United Kingdom

Phil Trathan

Affiliation British Antarctic Survey; High Cross, Madingley Road, Cambridge, United Kingdom

James Clark

Affiliation Marine Resources Assessment Group; 18 Queen Street, London, United Kingdom

Martin A. Collins

Affiliation Government of South Georgia and the South Sandwich Islands; Ross Road, Stanley, Falkland Islands

Mark Belchier

Affiliation British Antarctic Survey; High Cross, Madingley Road, Cambridge, United Kingdom

Robert Scott

Affiliation Centre for Environment, Fisheries & Aquaculture Science; Pakefield Rd, Lowestoft, United Kingdom

Competing Interests

James Clark is employed by Marine Resources Assessment Group who provided support in the form of salaries for author JC, but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The specific role of this author is articulated in the “author contributions” section

Author Contributions

Conceived and designed the experiments: MS. Performed the experiments: MS. Analyzed the data: MS RS. Contributed reagents/materials/analysis tools: MAC. Wrote the paper: MS PN JC MAC MB RS.