Geir Johnsen


Department of Biology
+47 73591581 +47 91897027
Biologisk stasjon, 01.nov, Trondheim, Bynesveien 46

Background and activities

Geir Johnsen is a professor in marine biology at the Department of Biology (NTNU), Prof II at University Centre on Svalbard (UNIS), and is one of the founding partners in a NTNU spin-off company Ecotone using new optical techniques for mapping and monitoring the marine environment.

Research areas

  • Marine ecology and biodiversity
  • Bio-optics
  • Photosynthesis
  • Pigment chemotaxonomy
  • Underwater robotics and sensor development for in situ identification
  • Mapping and monitoring of bio-geo-chemical objects of interest in the marine environment

He has been an adviser for 34 MSc students and 12 PhD candidates. Currently, he advises 10 MSc students and 5 PhD candidates.

He has published more than 100 papers in international scientific journals and been a co-editor for the books:

  • "Ecosystem Barents Sea" (Tapir Academic Press)
  • "Phytoplankton pigments: Updates on Characterization, Chemotaxonomy and Applications in Oceanography" (Cambridge University Press, 2011). 

Scientific, academic and artistic work

A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database

Journal publications