Photophysiological cycles in Arctic krill are entrained by weak midday twilight during the Polar Night

• Jonathan H. Cohen ,

  Contributed equally to this work with: Jonathan H. Cohen, Kim S. Last

  Roles Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Resources, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: jhcohen@udel.edu

  Affiliation School of Marine Science & Policy, University of Delaware, Lewes, Delaware, United States of America

  https://orcid.org/0000-0002-2032-7874

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• Kim S. Last ,

  Contributed equally to this work with: Jonathan H. Cohen, Kim S. Last

  Roles Conceptualization, Formal analysis, Funding acquisition, Investigation, Writing – original draft, Writing – review & editing

  Affiliation Scottish Association for Marine Science, Oban, United Kingdom

  https://orcid.org/0000-0001-9402-2347

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• Corie L. Charpentier,

  Roles Formal analysis, Investigation, Visualization, Writing – review & editing

  Affiliation Department of Biology, Stetson University, DeLand, Florida, United States of America

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• Finlo Cottier,

  Roles Funding acquisition, Methodology, Supervision, Visualization, Writing – review & editing

  Affiliations Scottish Association for Marine Science, Oban, United Kingdom, UiT, The Arctic University of Norway, Faculty for Biosciences, Fisheries and Economics, Department for Arctic and Marine Biology, Tromsø, Norway

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• Malin Daase,

  Roles Formal analysis, Funding acquisition, Investigation, Writing – review & editing

  Affiliation UiT, The Arctic University of Norway, Faculty for Biosciences, Fisheries and Economics, Department for Arctic and Marine Biology, Tromsø, Norway

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• Laura Hobbs,

  Roles Formal analysis, Investigation, Methodology, Visualization, Writing – review & editing

  Affiliations Scottish Association for Marine Science, Oban, United Kingdom, Department of Mathematics and Statistics, University of Strathclyde, Glasgow, United Kingdom

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• Geir Johnsen,

  Roles Funding acquisition, Investigation, Methodology, Writing – review & editing

  Affiliations University Centre in Svalbard, Longyearbyen, Norway, Centre of Autonomous Marine Operations and Systems, Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway

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• Jørgen Berge

  Roles Funding acquisition, Project administration, Resources, Writing – review & editing

  Affiliations UiT, The Arctic University of Norway, Faculty for Biosciences, Fisheries and Economics, Department for Arctic and Marine Biology, Tromsø, Norway, University Centre in Svalbard, Longyearbyen, Norway, Centre of Autonomous Marine Operations and Systems, Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway

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