Report from PolarFront Cruise 3-15 January 2024

1. Introduction

2. List of participants

3. Cruise summary & study area

4. Research activities

4.1. Water sampling, phytoplankton and production rate measurements
Anna Miettinen, Kelsey Rea Hanson, Christien Laber

4.2. Phytoplankton composition
Rolf Gradinger

4.3. In situ FRRF deployments
Rolf Gradinger

4.4. Photophysiological properties of net phytoplankton
Rolf Gradinger

4.5. "Frankenstein" sampling
Sünnje Basedow, Emilia Trudnowska, Maxime Geoffroy, Einat Sandbank

4.6. Mesozooplankton composition and Calanus lipid content
Malin Daase UiT,, Emilia Trudnowska IOPAN

4.7. Calanus Grazing Experiment
Florence Rappin, Lorenz Schick, Sünnje Basedow, Malin Daase

4.8. Macrozooplankton, pelagic fish, and acoustics
Frida Cnossen, Einat Sandbank, Ingvild Ytterhus Utengen, Maxime Geoffroy, Paul Renaud

4.9. Response of pelagic organisms to artificial light
Malin Daase, Maxime Geoffroy, Einat Sandbank

4.10. Global change impacts on overwintering Arctic copepods
Mathieu Lutier, Sophie Albertsen

4.11. Video Plankton Recorder
Fredrika Norrbin

5. Outreach

During the cruise, we published 6 blogs on the projects website https://akvaplan.no/en/project/polarfront

• https://akvaplan.no/en/blog/2024-01-10/science-shines-in-the-freezing-cold-winter-barents-sea
• https://akvaplan.no/en/blog/2024-01-12/science-inspiration-and-voyages-of-discovery
• https://akvaplan.no/en/blog/2024-01-14/pancakes-in-the-polar-night
• https://akvaplan.no/en/blog/2024-01-15/searching-for-macrozooplankton-and-fish-in-the-dark-of-
  night
• https://akvaplan.no/en/blog/2024-01-15/not-all-zooplankton-are-copepods
• https://akvaplan.no/en/blog/2024-01-18/forskning-i-polarnatten-med-frankenstein