2021
Predator–prey overlap in three dimensions: cod benefit from capelin coming near the seafloor
Johanna Jennifer Elisabeth Fall, Edda Johannesen, Göran Englund, Geir Odd Johansen, Øyvind Fiksen
Ecography
2020
Climate change and new potential spawning sites for Northeast Arctic cod
Geir Odd Johansen, Asgeir Aglen, Jan Erik Stiansen, Angelika Renner
Frontiers in Marine Science
2020
Climate change and new potential spawning sites for Northeast Arctic cod
Anne Britt Sandø, Geir Odd Johansen, Asgeir Aglen, Jan Erik Stiansen, Angelika Renner
Frontiers in Marine Science
2020
Climate change and new potential spawning sites for Northeast Arctic cod
Geir Odd Johansen, Asgeir Aglen, Jan Erik Stiansen, Angelika Renner
Frontiers in Marine Science
2020
Diel vertical movements determine spatial interactions between cod, pelagic fish and krill on an Arctic shelf bank
Georg Skaret, Geir Odd Johansen, Espen Johnsen, Johanna Jennifer Elisabeth Fall, Øyvind Fiksen, Gøran Englund, Per Fauchald, Harald Gjøsæter, Gavin Macaulay, Edda Johannesen
Marine Ecology Progress Series
638
p. 13-23
2017
Towards ecosystem-based management: Identifying operational food-web indicators for marine ecosystems
Jamie Tam, Jason S. Link, Axel G. Rossberg, Stuart I Rogers, Phillip Levin, Marie-Joelle Rochet, Alida Bundy, Andrea Belgrano, Simone Libralato, Maciej T. Tomczak, Karen Van De Wolfshaar, Fabio Pranovi, Elena Gorokhova, Scott I. Large, Nathalie Niquil, Simon P.R. Greenstreet, Jean-Noel Druon, Jurate Lesutiene, Marie Johansen, Izaskun Preciado, Joana Patricio, Andreas Palialexis, Paul Tett, Geir Odd Johansen, Jennifer Houle, Anna Rindorf
ICES Journal of Marine Science
74
p. 2040-2052
2017
Towards ecosystem-based management: identifying operational food-web indicators for marine ecosystems
Tam J.C., Link J.S., Rossberg A.G., Rogers S.I., Levin P.S., Joëlle Rochet M., Bundy A., Belgrano A., Libralato S., Tomczak M., van de Wolfshaar K., Pranovi F., Gorokhova E., Large S.I., Niquil N., Greenstreet S.P.R., Druon J.-N., Lesutiene J., Johansen M., Preciado I., Patricio J., Palialexis A., Tett P., Johansen G.O., Houle J., Rindorf, A.
ICES Journal of Marine Science
2015
Seasonal variation in cod feeding and growth in a changing sea
Johannesen E., Johansen G.O. and Korsbrekke K.
Canadian Journal of Fisheries and Aquatic Sciences
72
p. 1-11
2013
Seasonal variation in geographic distribution of North East Arctic (NEA) cod - survey coverage in a warmer Barents Sea
Geir Odd Johansen, Edda Johannesen, Kathrine Michalsen, Asgeir Aglen, Åge Fotland
Marine Biology Research
9
p. 908-919
2013
Dispersal of the radionuclide caesium-137 (Cs-137) from point sources in the Barents and Norwegian Seas and its potential contamination of the Arctic marine food chain: Coupling numerical ocean models with geographical fish distribution data
Hilde Elise Heldal, Frode Bendiksen Vikebø, Geir-Odd Johansen
Environmental Pollution (1987)
180
p. 190-198
2012
Dispersal of the radionuclide caesium-137 (Cs-137) from point sources in the Barents and Norwegian Seas and its potential contamination of the Arctic marine food chain: Coupling numerical ocean models with geographical fish distribution data
Hilde Elise Heldal, Frode Bendiksen Vikebø, Geir Odd Johansen
Environmental Pollution (1987)
164
p. 1-10
2012
Thermal habitat for 0-group fish in the Barents Sea; how climate variability impacts their density, length, and geographic distribution
Elena Eriksen, Randi Ingvaldsen, Jan Erik Stiansen, Geir Odd Johansen
ICES Journal of Marine Science
69
p. 870-879
2009
Quantifying and reducing the surface blind zone and the seabed dead zone using new technology
Atle Totland, Geir Odd Johansen, Olav Rune Godø, Egil Ona, Terje Torkelsen
ICES Journal of Marine Science
66
p. 1370-1376
2009
Using acoustic technology to improve the modelling of the transportation and distribution of juvenile gadoids in the Barents Sea
Geir-Odd Johansen, Olav Rune Godø, Morten D. Skogen, Terje Torkelsen
ICES Journal of Marine Science
66
p. 1048-1054
2009
Acoustic species identification of schooling fish
Rolf Korneliussen, Yngve Heggelund, Inge K. Eliassen, Geir-Odd Johansen
ICES Journal of Marine Science
66
p. 1111-1118
2004
Studying spatial and trophic interactions between capelin and cod using individual-based modelling
Geir Huse, Geir-Odd Johansen, Bjarte Bogstad, Harald Gjøsæter
ICES Journal of Marine Science
61
p. 1201-1213
2004
Consumption of juvenile herring (Clupea harengus) by cod (Gadus morhua) in the Barents Sea: a new approach to estimating consumption in piscivorous fish
Geir Odd Johansen, Bjarte Bogstad, Sigbjørn Mehl, Øyvind Ulltang
Canadian Journal of Fisheries and Aquatic Sciences
61
p. 343-359
2003
Size-dependent predation on juvenile herring (Clupea harengus L.) by North-east Arctic cod (Gadus morhua L.) in the Barenta Sea
Johansen, Geir Odd
Sarsia
88
p. 136-153
2002
Temporal and spatial variation in predation on juvenile herring (Clupea harengus L.) by Northeast Arctic cod (Gadus morhua L.) in the Barents Sea in 1984-1997
Johansen, Geir Odd
ICES Journal of Marine Science
59
2002
Temporal and spatial variation in predation on juvenile herring (clupea harengus L.) by Northeast Arctic cod (Gadus morhua L.) in the Barents Sea
Johansen, Geir Odd
ICES Journal of Marine Science
59
p. 270-292
2019
Climate change and new potential spawning sites for Northeast Arctic cod
Anne Britt Sandø, Geir Odd Johansen, Asgeir Aglen, Jan Erik Stiansen, Angelika Renner
2018
Climate change and new potential spawning sites for Northeast Arctic Cod
Anne Britt Sandø, Angelika Renner, Geir Odd Johansen, Jan Erik Stiansen, Asgeir Aglen
2018
Structure, function and pelagic-benthic coupling in the Norwegian Arctic marine ecosystem
Kirsteen M. MacKenzie, Lis Lindal Jørgensen, Elena Eriksen, Geir Odd Johansen, Edda Johannesen, Mikaela Tillman
2018
Tropho-spatial variability in Barents Sea fishes determined by stable isotope analysis
Kirsteen M. MacKenzie, Elena Eriksen, Geir Odd Johansen, Edda Johannesen, Cecilie Hansen
2018
Trophic level of cod in the Barents Sea - Estimates from stomach data, stable isotope data, and an ecosystem model.
Geir Odd Johansen, Edda Johannesen, Kirsteen M. MacKenzie, Cecilie Hansen, Elena Eriksen
2018
Fisheries in a warming Arctic - Distribution shifts in commercial fish stocks and consequences at different scales
Jan Erik Stiansen, Geir Odd Johansen, Asgeir Aglen, Johanna Jennifer Elisabeth Fall, Endre Moen
2017
In situ study of the functional response of cod to capelin using broadband acoustics and trawl sampling
Georg Skaret, Johanna Jennifer Elisabeth Fall, Per Fauchald, Øyvind Fiksen, Harald Gjøsæter, Edda Johannesen, Geir Odd Johansen, Espen Johnsen, Gavin Macaulay
2014
Consumption and growth in a seasonally varying environment
Edda Johannesen, Geir Odd Johansen, Knut Korsbrekke
2013
A framework for data flow from observations to advice – the development of a new, efficient data infrastructure at IMR
Nils Olav Handegard, Harald Gjøsæter, Geir Odd Johansen, Jens-Otto Krakstad, Sjur Ringheim-Lid, Helge Sagen, Trond Westgård, Geir Huse
2011
Future change in the distribution of fish and fisheries in the Barents Sea; experiences from the FishExChange project
Jan-Erik Stiansen, Sigbjørn Mehl, Geir-Odd Johansen, Cecilie Kvamme, Bjørn Ådlandsvik, Nils-Arne Ekerhovd, Røgnvaldur Hannesson
2010
Sea2Data - Havforskingsinstituttets datainfrastrukturprosjekt for feltdata
Nils Olav Handegard, Harald Gjøsæter, Geir Odd Johansen, Jens-Otto Krakstad, Erlend Moksness, Helge Sagen, Jon Helge Vølstad, Trond Inge Westgaard
2003
Analysing interactions between capelin and cod in the Barents Sea by individual-based modelling
Geir Huse, Geir Odd Johansen, Bjarte Bogstad, Harald Gjøsæter
2003
Consumption of capelin (Mallotus villotus Muller 1776) by Norteast Arctic cod (Gadus morhua L.) in the Barents Sea
Geir Odd Johansen, Bjarte Bogstad, Harald Gjøsæter, Sigbjørn Mehl, Øyvind Ulltang
2003
Sild som promper: et økosystemperspektiv
Johansen, Geir Odd
2002
Natural mortality of juvenile herring (Clupea harengus L.) in the Barents Sea due to predation by North-east Arctic cod (Gadus morhua L.)
Geir Odd Johansen, Bjarte Bogstad, Sigbjørn Mehl, Øyvind Ulltang
2002
Data for modelling the migration of cod, capelin and herring in the Barents Sea
Johansen, Geir Odd
2002
Consumption of juvenile herring in the Barents Sea
Johansen, Geir Odd
2001
Presentasjon av fiskeribiologiutdannelsen ved Universitetet i Bergen
Johansen, Geir Odd
2024
Revision of the Norwegian-Russian Barents Sea Ecosystem Survey (BESS) - The current status and revision of the Norwegian sector of the BESS survey
Elena Eriksen, Geir Odd Johansen, Gro Ingleid van der Meeren, Herdis Langøy Mørk, Stine Karlson, Espen Bagøien, Miguel Bao, Erik Berg, Bjarte Bogstad, Stepan Boitsov, Paolo Cipriani, Padmini Dalpadado, Hanna Ellerine Helle Danielsen, Lucilla Giulietti, Elvar Halldor Hallfredsson, Hilde Elise Heldal, Ann Merete Hjelset, Arne Johannes Holmin, Hannes Höffle, Edda Johannesen, Lis Lindal Jørgensen, Arne Levsen, Georg Skaret, Hiroko Kato Solvang, Julia Endresen Storesund, Espen Strand, Ida Vee, Tone Vollen, Rupert Wienerroither, Kristin Windsland, Fabian Zimmermann, Nils Inge Øien
Rapport fra havforskningen
2023
Survey report from the joint Norwegian/Russian Ecosystem Survey in the Barents Sea and the adjacent waters August- December 2022
Geir Odd Johansen, Dmitry Prozorkevich, Alexander Trofimov, Randi Brunvær Ingvaldsen, Tatiana Prokhorova, Bjørn Einar Grøsvik, Pavel Krivosheya, Espen Bagøien, Sarah Joanne Lerch, Irina Prokopchuk, Elena Eriksen, Berengere Husson, Georg Skaret, Edda Johannesen, Bjarte Bogstad, Kristin Windsland, Hannes Höffle, Rupert Wienerroither, Carsten Hvingel, Andrey Dolgov, Ann Merete Hjelset, Sergey Bakanev, Aleksei Stesko, Lis Lindal Jørgensen, Nils Inge Øien, Frederike Boehm, Natalia Strelkova, Daria Blinova, Roman Klepikovskiy, Per Fauchald, Gro Ingleid van der Meeren
IMR/PINRO Joint Report Series
2022
Samlet påvirkning i foreslåtte særlig verdifulle og sårbare områder i norske havområder
Cecilie Hansen, Johanna Myrseth Aarflot, Elena Eriksen, Berengere Husson, Per Fauchald, Geir Odd Johansen, Lis Lindal Jørgensen, Gro Ingleid van der Meeren, Nina Mikkelsen, Geir Ottersen, Cecilie von Quillfeldt, Mette Skern-Mauritzen
2019
StoX applied to cod and haddock data from the Barents Sea NOR-RUS ecosystem cruise in autumn - Swept area abundance, length and weight at age 2004-2017
Edda Johannesen, Espen Johnsen, Geir Odd Johansen, Knut Korsbrekke
2019
Drivers of variation in the predator-prey interaction between cod and capelin in the Barents Sea
Johanna Jennifer Elisabeth Fall, Edda Johannesen, Øyvind Fiksen, Geir Odd Johansen
2018
Survey report from the joint Norwegian/Russian Ecosystem Survey in the Barents Sea and adjacent waters, August - October 2017
Dmitry A. Prozorkevich, Geir Odd Johansen, Gro Ingleid van der Meeren
2014
IESSNS international mackerel-ecosystem survey (2014813) 01.07.2014-28.07.2014
Geir Odd Johansen, Endre Grimsbø
2014
Report of the Workshop to develop recommendations for potentially useful Food Web Indicators (WKFooWI), 31 March–3 April 2014, ICES Headquarters, Copenhagen, Denmark. ICES CM 2014\ACOM:48
Organization ICES, Geir Odd Johansen
2014
Report of the Working Group on Integrating Surveys for the Ecosystem Approach (WGISUR), 21-23 January 2014, Nantes, France. ICES CM 2014\SSGESST:03
Organization ICES, Geir Odd Johansen, Elena Eriksen
2012
Rapport fra utvalg til å vurdere fremtidig utvikling i våre mest sentrale fiskebestander
Geir Huse, Olav Sigurd Kjesbu, Harald Gjøsæter, Bjarte Bogstad, Erling Kåre Stenevik, Jens Christian Holst, Petter Fossum, Randi Brunvær Ingvaldsen, Geir Odd Johansen, Mette Skern-Mauritzen
2009
Er det mogleg å justere loddekvoten ut frå eit vinterloddetokt? Oppsummering av tokt 2007-2009
Elena Eriksen, Harald Gjøsæter, Geir Odd Johansen, Ingolf Røttingen, Ingvald Kvinge Svellingen, Sigurd Tjelmeland, Egil Ona
2005
Estimates of cod's consumption of capelin and herring related to prey density, stock overlap and physical factors
Øyvind Ulltang, Geir Odd Johansen
2003
The predator-prey interaction between Northeast Arctic cod (Gadus morhua L.) and juvenile Norwegian spring-spawning herring (Clupea harengus L.) in the Barents Sea
Johansen, Geir Odd