Background and activities
Geir Johnsen is a professor in marine biology at Dept of biology Norwegian University of Technology and Science (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. He has been at 1 years research stay at University of California at Santa Barbara (1992-93) and at Curtin University, Perth, Australia (2010-11). Adviser for 34 MSc and 12 PhD students graduated. Currently he advises 10 MSc and 5 PhD students, published >100 papers in international scientific journals and been a co-editor for the books "Ecosystem Barents Sea" (Tapir Academic Press) and Phytoplankton pigments: Updates on Characterization, Chemotaxonomy and Applications in Oceanography (Cambridge University Press, 2011). 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.
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
- (2015) Unexpected Levels of Biological Activity during the Polar Night Offer New Perspectives on a Warming Arctic. Current Biology. vol. 25.
- (2015) In the dark: a review of ecosystem processes during the Arctic polar night. Progress in Oceanography.
- (2015) Is ambient light during the high Arctic polar night sufficient to act as a visual cue for zooplankton?. PLoS ONE. vol. 10 (6).
- (2015) Development of bryozoan fouling on cultivated kelp (Saccharina latissima) in Norway. Journal of Applied Phycology.
- (2015) Integrated environmental mapping and monitoring, a methodological approach to optimise knowledge gathering and sampling strategy. Marine Pollution Bulletin. vol. 96 (1-2).
- (2014) Light Climate and Status of the Photosynthetic Machinery in Macroalgae in the Polar Night. Ocean Optics.
- (2014) Arctic complexity: A case study on diel vertical migration of zooplankton. Journal of Plankton Research. vol. 36 (5).
- (2014) Are krill eyes useful in the high Arctic polar night?. Ocean Optics.
- (2014) Optical properties of CDOM across the Polar Front in the Barents Sea: Origin, distribution and significance. Journal of Marine Systems. vol. 130.
- (2014) Underwater hyperspectral imaging (UHI) for environmental mapping and monitoring of seabed habitats. Ocean Optics.
- (2014) Optical impact of an Emiliania huxleyi bloom in the frontal region of the Barents Sea. Journal of Marine Systems. vol. 130.
- (2014) Glowing in the dark: Discriminating patterns of bioluminescence from different taxa during the Arctic polar night. Polar Biology. vol. 37 (5).
- (2014) The use of underwater hyperspectral imaging deployed on remotely operated vehicles to identify, map and monitor bio-geo-chemical objects of interest. Ocean Optics.
- (2014) Scientific Operations Combining ROV and AUV in the Trondheim Fjord. Marine Technology Society journal. vol. 48 (2).
- (2014) Integrated environmental monitoring; a methodological approach to optimise knowledge gathering and sampling strategy. Ocean Optics.
- (2014) Photomosaic camera as simultaneous data collector and navigation aid on unmanned underwater vehicles. Ocean Optics.
- (2014) Development of hyperspectral imaging as a bio-optical taxonomic tool for pigmented marine organisms. Organisms Diversity & Evolution. vol. 14 (2).
- (2014) System responses to equal doses of photosynthetically usable radiation of blue, green, and red light in the marine diatom Phaeodactylum tricornutum. PLoS ONE. vol. 9 (12).
- (2013) Quantifying the light sensitivity of Calanus spp. during the polar night: potential for orchestrated migrations conducted by ambient light from the sun, moon, or aurora borealis. Polar Biology.
- (2013) Dynamics regulating major trends in Barents Sea temperatures and subsequent effect on remotely sensed particulate inorganic carbon. Marine Ecology Progress Series. vol. 484.