Publications

Pigmentation and spectral absorbance in the deep-sea arctic amphipods Eurythenes gryllus and Anonyx sp

Academic article 2011 Hanne Halkinrud Thoen, Geir Johnsen, Jørgen Berge

Pigment composition, spectral characteriation and photosynthetic parameters in Chrysochromulina polylepis

Academic article 1992 Geir Johnsen, Egil Sakshaug, Maria Vernet

Pictures from an all-sky camera with hourly resolution from the light observatory at Ny-Ålesund, Svalbard, Norway (complete year 2025)

Dataset 2026 Geir Johnsen, Jørgen Berge, Artur Zolich, David James Christopher Mckee, Johnathan Cohen, Daniel Ludwig Vogedes, Tomasz Piotr Kopec

Pictures from an all-sky camera with hourly resolution from the light observatory at Ny-Ålesund, Svalbard, Norway (complete year 2024)

Dataset 2025 Geir Johnsen, Jørgen Berge, Artur Zolich, David James Christopher Mckee, Johnathan Cohen, Daniel Ludwig Vogedes, Tomasz Piotr Kopec

Pictures from an all-sky camera with hourly resolution from the light observatory at Ny-Ålesund, Svalbard, Norway (complete year 2023)

Dataset 2025 Geir Johnsen, Jørgen Berge, Artur Zolich, David James Christopher Mckee, Johnathan Cohen, Daniel Ludwig Vogedes, Tomasz Piotr Kopec

Pictures from an all-sky camera with hourly resolution from the light observatory at Ny-Ålesund, Svalbard, Norway (complete year 2022)

Dataset 2025 Geir Johnsen, Jørgen Berge, Artur Zolich, David James Christopher Mckee, Johnathan Cohen, Daniel Ludwig Vogedes, Tomasz Piotr Kopec

Pictures from an all-sky camera with hourly resolution from the light observatory at Ny-Ålesund, Svalbard, Norway (complete year 2021)

Dataset 2025 Geir Johnsen, Jørgen Berge, Artur Zolich, David James Christopher Mckee, Johnathan Cohen, Daniel Ludwig Vogedes, Tomasz Piotr Kopec

Phytoplankton Seasonal Dynamics in Kongsfjorden, Svalbard and the Adjacent Shelf

Academic chapter 2019 Else Nøst Hegseth, Philipp Assmy, Józef M. Wiktor, Józef Wiktor Jr, Svein Kristiansen, Eva Leu, Vigdis Tverberg, Tove M. Gabrielsen, Ragnheid Skogseth, Finlo Robert Cottier

Phytoplankton pigments and absorption spectra as potential bio-markers for harmful algal blooms: A case study of the Florida red-tide dinoflagellat Gymnodinium breve

Academic article 1997 D. Millie, O. M. Schofield, G. J. Kirkpatrick, Geir Johnsen, P. A. Tester, B. T. Vinyard

Phytoplankton pigments : characterization, chemotaxonomy and applications in oceanography

Anthology 2011 Suzanne Roy, Carole Llewellyn, Einar Skarstad Egeland, Geir Johnsen

Phytoplankton in the Arctic Ocean - Species Composition and Biomass during the Nansen Legacy Arctic basin cruise, 24 Aug-26 Sep 202

Conference poster 2023 Wenche Eikrem, Anna Vader, Antje Hofgaard, Bente Edvardsen

Phytoplankton community succession and dynamics using optical approaches

Academic article 2020 Glaucia Moreira Fragoso, Geir Johnsen, Matilde Skogen Chauton, Finlo Robert Cottier, Ingrid H. Ellingsen

Phytoplankton chemotaxonomy in waters around the Svalbard archipelago reveals high amounts of Chl b and presence of gyroxanthin-diester

Academic article 2011 Ragnhild Pettersen, Geir Johnsen, Jørgen Berge, Erlend Kjeldsberg Hovland

Phytoplankton and primary production

Academic chapter 2009 Egil Sakshaug, Geir Johnsen, Svein Kristiansen, Cecilie von Quillfeldt, Francisco Rey, Dag Slagstad, Frede Thingstad

Phytoplankton and primary production

Academic chapter 2009 E. Sakshaug, Geir Johnsen, Svein Kristiansen, C.v. Quillfeldt, F. Rey, D. Slagstad, F. Thingstad

Physiology and environmental conditions during a toxic blooms of Chrysochromulina leadbeateri Prymnesiophyceae

Academic article 1998 Geir Johnsen, W. Eikrem, R. Dalløkken, J. Aure, H. R. Skjoldal

Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo trutta) smolts

Academic article 2006 Helena Reinardy

Physiological consequences of "premature freshwater return" for wild sea-run brown trout (Salmo trutta) postsmolts infested with sea lice (Lepeophtheirus salmonis)

Academic article 2007 Helena Reinardy

Physiological and behavioural responses of moose to hunting with dogs

Academic article 2020 Anne Randi Græsli, Luc Le Grand, Alexandra Thiel, Boris Fuchs, Olivier Devineau, Fredrik Stenbacka, Wiebke Neumann, Goran Ericsson, Navinder Singh, Timothy G. Laske, Larissa Teresa Beumer, Jon Martin Arnemo, Alina Evans

Physics and mechanics of ice: international education in the University Centre in Svalbard and field works in the Arctic

Academic article 2021 Aleksey Marchenko

Physics and mechanics of ice: international education in the University Centre in Svalbard and field works in the Arctic

Lecture 2021 Aleksey Marchenko

Physical Properties and Comparison of First- and Second-Year Sea Ice Ridges

Academic article 2009 Lucie Strub-Klein, Sébastien Barrault, Harvey Goodwin, Sebastian Gerland

Physical Process Cruise 2018: Cruise Report

Research report 2020 Ilker Fer, Frank Nilsen, Anthony Bosse, Eva Falck, Trygve Olav Fossum, Lars Robert Hole, Zoé Charlotte Koenig, Eivind Kolås, Aleksander Libæk, Ben Lincoln, Martin Ludvigsen, Marika Marnela, Malte Müller, Petter Norgren, Jean Rabault, Andrew Siedl, Ragnheid Skogseth, inga Utkilen

Physical oceanography data from the cruise KH 2018709 with R.V. Kronprins Haakon, 12-24 September 2018

Research report 2019 Ilker Fer, Zoe Charlotte Koenig, Eivind Hugaas Kolås, Eva Falck, Trygve Olav Fossum, Martin Ludvigsen, Marika Marnela, Frank Nilsen, Petter Norgren, Ragnheid Skogseth

Physical oceanography data from the cruise KB 2018616 with R.V. Kristine Bonnevie

Research report 2020 Ilker Fer, Zoé Charlotte Koenig, Anthony Bosse, Eva Falck, Eivind Kolås, Frank Nilsen