Ole Folkedal

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Telefon: 90972673
Avdeling: Dyrevelferd

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Post Doc in the NCR funded project SALMOWA “Overall welfare assessment (OWA) of farmed salmon”.

My main research interest is fish behavior in aquaculture, with main focus on stress coping, motivation and learning.

Curriculum Vitae

Education
PhD, October 2010: University of Bergen/Institute of Marine research. Thesis title: Anticipatory behaviour as indicator for stress and welfare in farmed Atlantic salmon at different life stages.

Master, September 2006: University of Bergen/Institute of Marine research. Thesis title: Effects of group size and light regime on swimming depth and social interactions of individual Atlantic salmon (Salmo salar L.) in a sea cage.

Publikasjoner

Vitenskapelige artikler (NVI)

2017

Consistent melanophore spot patterns allow long-term individual recognition of Atlantic salmon Salmo salar

Lars Helge Stien, Jonatan Nilsson, Samantha Bui, Jan Erik Fosseidengen, Tore S Kristiansen, Øyvind Øverli, Ole Folkedal
Journal of Fish Biology 91 p. 1699-1712
2017

Habituation and conditioning in gilthead sea bream (Sparus aurata): Effects of aversive stimuli, reward and social hierarchies

Ole Folkedal, Anders Fernø, Marit A. J. Nederlof, Jan Erik Fosseidengen, Marco Cerqueira, Rolf Erik Olsen, Jonatan Nilsson
Aquaculture Research 49 p. 335-340
2017

The effect of thermal acclimation on aerobic scope and critical swimming speed in Atlantic salmon Salmo salar

Malthe Hvas, Ole Folkedal, Albert Imsland, Frode Oppedal
Journal of Experimental Biology 220 p. 2757-2764
2017

Assessing swimming capacity and schooling behaviour in farmed Atlantic salmon Salmo salar with experimental push-cages

Malthe Hvas, Ole Folkedal, David Solstorm, Tone Vågseth, Jan Olav Fosse, Lars Christian Gansel, Frode Oppedal
Aquaculture 473 p. 423-429
2017

Effects of light source and intensity on sexual maturation, growth and swimming behaviour of Atlantic salmon in sea cages

Tom Johnny Hansen, Per Gunnar Fjelldal, Ole Folkedal, Tone Vågseth, Frode Oppedal
Aquaculture Environment Interactions p. 193-204
2017

Skin mucus of gilthead sea bream (sparus aurata l.). protein mapping and regulation in chronically stressed fish

Jaume Pérez-Sánchez, Genciana Terova, Paula Simó-Mirabet, Simona Rimoldi, Ole Folkedal, Josep Alvar Calduch-Giner, Rolf Erik Olsen, Ariadna Sitjà-Bobadilla
Frontiers in Physiology 8:34 p. 1-18
2016

On-farm evaluation of the Salmon Welfare Index Model (SWIM 1.0) - Theoretical and practical considerations

Ole Folkedal, Jostein Mulder Pettersen, Marc Bernardus Maria Bracke, Lars Helge Stien, Jonatan Nilsson, Catarina I.M. Martins, Olav Breck, Paul Midtlyng, Tore S Kristiansen
Animal Welfare 25 p. 135-149
2016

Brain serotonergic activation in growth-stunted farmed salmon: Adaption versus pathology

Marco Antonio Vindas, Ida Beitnes Johansen, Ole Folkedal, Erik Höglund, Marnix Gorissen, Gert Flik, Tore S Kristiansen, Øyvind Øverli
Royal Society Open Science 3
2015

Effect of temperature on the metabolism, behaviour and oxygen requirements of Sparus aurata

Mette Remen, Marit A. J. Nederlof, Ole Folkedal, Grethe Beate Thorsheim, Ariadna Sitjà-Bobadilla, Jaume Pérez-Sánchez, Frode Oppedal, Rolf Erik Olsen
Aquaculture Environment Interactions 7 p. 115-123
2014

Metabolic and transcriptional responses of gilthead sea bream (Sparus aurata L.) to environmental stress: New insights in fish mitochondrial phenotyping

A. Bermejo-Nogales, Marit Nederlof, L. Benedito-Palos, G. F. Ballester-Lozano, Ole Folkedal, Rolf Erik Olsen, A. Sitja-Bobadilla, Jaume Perez-Sanchez
General and Comparative Endocrinology 205 p. 305-315
2014

Coping with unpredictability: Dopaminergic and neurotrophic responses to omission of expected reward in Atlantic salmon (Salmo salar L.)

Marco Antonio Vindas, Christina Sørensen, Ida Beitnes Johansen, Ole Folkedal, Erik Höglund, Uniza Wahid Kahn, Lars Helge Stien, Tore S Kristiansen, Bjarne Olai Braastad, Øyvind Øverli
PLoS ONE 9
2014

Salmon welfare index model 2.0: an extended model for overall welfare assessment of caged Atlantic salmon, based on a review of selected welfare indicators and intended for fish health professionals

Jostein Mulder Pettersen, Marc Bracke, Paul Johan Midtlyng, Ole Folkedal, Lars Helge Stien, Håvard Steffenak, Tore S Kristiansen
Reviews in Aquaculture 6 p. 162-179
2013

PIT tagged individual Atlantic salmon registrered at static depth positions in a sea cage: Vertical size stratification and implications for fish sampling

Jonatan Nilsson, Ole Folkedal, Jan Erik Fosseidengen, Lars Helge Stien, Frode Oppedal
Aquacultural Engineering 55 p. 32-36
2013

Salmon Welfare Index Model (SWIM 1.0): a semantic model for overall welfare assessment of caged Atlantic salmon: review of the selected welfare indicators and model presentation

Lars Helge Stien, Marc Bracke, Ole Folkedal, Jonatan Nilsson, Frode Oppedal, Thomas Torgersen, Silje Kittilsen, Paul Johan Midtlyng, Marco Antonio Vindas Alvarado, Øyvind Øverli, Tore S Kristiansen
Reviews in Aquaculture 5 p. 33-57
2012

Sea caged Atlantic salmon display size-dependent swimming depth

Ole Folkedal, Lars Helge Stien, Jonatan Nilsson, Thomas Torgersen, Jan Erik Fosseidengen, Frode Oppedal
Aquatic Living Resources 25 p. 143-149
2012

Food anticipatory behaviour as an indicator of stress response and recovery in Atlantic salmon post-smolt after exposure to acute temperature fluctuation

Ole Folkedal, Lars Helge Stien, Thomas Torgersen, Frode Oppedal, Rolf Erik Olsen, Jan Erik Fosseidengen, Victoria Anne Braithwaite, Tore S Kristiansen
Physiology and Behavior 105 p. 350-356
2012

Duration of effects of acute environmental changes on food anticipatory behaviour, feed intake, oxygen consumption, and cortisol release in Atlantic salmon parr

Ole Folkedal, Thomas Torgersen, Rolf Erik Olsen, Anders Fernø, Jonatan Nilsson, Frode Oppedal, Lars Helge Stien, Tore S Kristiansen
Physiology and Behavior 105 p. 283-291
2012

Omission of expected reward agitates Atlantic salmon (Salmo salar)

Marco Vindas, Ole Folkedal, Tore S Kristiansen, Lars Helge Stien, Bjarne Olai Braastad, Ian Mayer, Øyvind Øverli
Animal Cognition 15 p. 903-911
2012

Skirt around a salmon sea cage to reduce infestation of salmon lice resulted in low oxygen levels

Lars Helge Stien, Jonatan Nilsson, Ernst Morten Hevrøy, Frode Oppedal, Tore S Kristiansen, Andreas Myskja Lien, Ole Folkedal
Aquacultural Engineering 51 p. 21-25
2010

Habituation rate and capacity of Atlantic salmon (Salmo salar) parr to sudden transitions from darkness to light

Ole Folkedal, Thomas Torgersen, Jonatan Nilsson, Frode Oppedal
Aquaculture 307 p. 170-172
2010

From fright to anticipation: using aversive light stimuli to investigate reward conditioning in large groups of Atlantic salmon (Salmo salar)

Silje Bratland, Lars Helge Stien, Victoria Anne Braithwaite, Jon-Erik Juell, Ole Folkedal, Jonatan Nilsson, Frode Oppedal, Jan Erik Fosseidengen, Tore S Kristiansen
Aquaculture International 18 p. 991-1001
2009

Submergence of Atlantic salmon (Salmo salar L.) in commercial scale sea-cages: A potential short-term solution to poor surface conditions

Timothy David Dempster, Øyvind Johan Korsøen, Ole Folkedal, Jon-Erik Juell, Frode Oppedal
Aquaculture 288 p. 254-263

Poster

2017

ARE SWIMMING DEPTH PREFERENCES IN FARMED ATLANTIC SALMON GENETICALLY DEPENDENT?

Ole Folkedal, Lars Helge Stien, Ingunn Thorland, Rudi Ripman Seim, Roy Hjelmeland, Thomas Torgersen, Jonatan Nilsson, Rolf Edvardsen, Morten Rye, Håvard Bakke, Øyvind Øverli, Tore S Kristiansen
2012

Topical delousing in sea cages – salmon behaviour, water movements and therapeutant mixing

Frode Oppedal, Tone Vågseth, Klebert Pascal, Erik Høy, Lars Helge Stien, Ole Folkedal
2012

Omission of expected reward sensitizes the brain dopaminergic system of classically conditioned Atlantic salmon

Marco Antonio Vindas, Erik Höglund, Ole Folkedal, Ida Beitnes Johansen, Bjarne Olai Braastad, Lars Helge Stien, Tore S Kristiansen, Øyvind Øverli

Mediebidrag

2018

Akustiske merker forteller hvordan laksen har det i merden

Vegard Solsletten, Ole Folkedal
2018

How Will Aquaculture’s Shift Offshore Affect the Feed Industry?

Shannon Behary, Ole Folkedal
2018

Bruker lyd for å se om oppdrettslaksen har spist nok

Camilla Aadland, Ole Folkedal
2018

System for efficient salmon-feeding

Gonzales Ruby, Ole Folkedal
2018

Ekkolodd ser når laksen er mett

Anders Jakobsen, Ole Folkedal
2018

How lasers and robo-feeders are transforming fish farming

Chris Baraniuk, Ole Folkedal, Bendik Sørensen Søvegjarto

Kapitler og bøker

2017

Velferdsindikatorer for oppdrettslaks: Hvordan vurdere og dokumentere fiskevelferd - Del A. fiskevelferd og oppdrettslaks, kunnskap og teoretisk bakgrunn

Jonatan Nilsson, Lars Helge Stien, Martin Haugmo Iversen, Tore S Kristiansen, Thomas Torgersen, Frode Oppedal, Ole Folkedal, Malthe Hvas, Kristine Gismervik, Kristian Ellingsen, Kristoffer Vale Nielsen, Cecilie Marie Mejdell, Jelena Kolarevic, David Izquierdo Gomez, Bjørn-Steinar Sæther, Åsa Maria Olofsdotter Espmark, Kjell Øyvind Midling, Bjørn Roth, James F. Turnbull, Chris Noble
p. 10-135

Populærvitenskapelige artikler

2018

Ekkolodd som fôringsverktøy

Folkedal, Ole
Nf xpert : en spesialutgave av Norsk fiskeoppdrett
2017

Hvor mye vannstrøm tåler laksen på eksponerte lokaliteter?

Malthe Hvas, Ole Folkedal, Frode Oppedal
Norsk Fiskeoppdrett p. 28-33
2011

Oppdrettsfisk tilpasser seg.

Thomas Torgersen, Mette Remen, Frode Oppedal, Ole Folkedal, Anne Aasjord, Jonatan Nilsson, Tore S Kristiansen
Havforskningsrapporten

Faglige foredrag

2018

Bruk av undervanns luftkuppel for oppdrett av laks i nedsenkte merder

Frode Oppedal, Ole Folkedal, Jonatan Nilsson, Lars Helge Stien, Timothy David Dempster, Tone Vågseth
2017

Hvilke velferdsindikatorer skal brukes i ulike anleggskonsepter for lakseoppdrett?

Kristoffer Vale Nielsen, Chris Noble, Kristine Gismervik, Cecilie Marie Mejdell, Jonatan Nilsson, Jelena Kolarevic, Lars Helge Stien, Martin Haugmo Iversen, James F. Turnbull, Bjørn-Steinar Sæther, Åsa Maria Olofsdotter Espmark, Kjell Øyvind Midling, David Izquierdo-Gomez, Tore S Kristiansen, Thomas Torgersen, Frode Oppedal, Ole Folkedal, Malthe Hvas, Daniel William Wright, Kristian Ellingsen
2017

La laksen fôre "seg selv"!

Ole Folkedal, Gunvar Mikkelsen, Jan Erik Fosseidengen, Velimir Nola, Jonatan Nilsson, Anders Fernö, Timothy David Dempster, Lars Helge Stien, Frode Oppedal
2017

Vekst hos laksesøsken

Ole Folkedal, Lars Helge Stien, Jonatan Nilsson, Thomas Torgersen, Tore S Kristiansen
2017

DO DIFFERENT GENES CONTROL SUMMER AND WINTER GROWTH IN ATLANTIC SALMON (Salmo salar)?

Ingunn Thorland, Jørn Thodesen, Terje Refstie, Ole Folkedal, Rudi Ripman Seim, Morten Rye
2017

SAMPLING OF ALTANTIC SALMON (Salmo salar) FROM TANKS AND SEA CAGES IS SIZE-BIASED

Jonatan Nilsson, Ole Folkedal
2017

Thresholds for hypoxia and water current in salmon production

Frode Oppedal, Malthe Hvas, Frida Solstorm, David Solstorm, Tina Oldham, Ole Folkedal, Lars Helge Stien
2017

Velferdsindikatorer for laks og regnbueørret (FISHWELL)

Jonatan Nilsson, Lars Helge Stien, Tore S Kristiansen, Ole Folkedal, Frode Oppedal, Thomas Torgersen, Malthe Hvas, Daniel W Wrigth, Chris Noble, Jelena Kolarevic, Kristine Gismervik, James F. Turnbull
2016

Premisser for merdteknologi – lytter vi til "brukerens" krav til vannstrøm for god vekst og velferd på eksponerte lokaliteter?

Ole Folkedal, Malthe Hvas, David Solstorm, Frida Solstorm, Mette Remen, Frode Oppedal
2016

Er atferd hos oppdrettslaks familieavhengig?

Ole Folkedal, Lars Helge Stien, Jonatan Nilsson, Thomas Torgersen, Jan Erik Fosseidengen, Rolf Edvardsen, Tore S Kristiansen
2016

Hva er akseptabel vannstrøm for laks i merder?

Frode Oppedal, David Solstorm, Frida Solstorm, Mette Remen, Malthe Hvas, Ole Folkedal
2016

Passe store grupper: Balanse mellom Reduction og Refinement i forsøk med laks

Jonatan Nilsson, Jan Erik Fosseidengen, Ole Folkedal
2015

Fôring og fødemotivasjon sin påvirkning av svømmedyp.

Folkedal, Ole
2014

Svakt lys holder laksen dypt, sterkt lys gir best vekst.

Frode Oppedal, Tom Johnny Hansen, Per Gunnar Fjelldal, Ole Folkedal, Morten Malm, Harald Sveier, Thomas Torgersen, Lars Helge Stien
2014

Use of artificial light (LL) to prevent sexual maturation and increase growth in salmon sea cages.

Frode Oppedal, Per Gunnar Fjelldal, Tom Johnny Hansen, Thomas Torgersen, Ole Folkedal
2014

Hypoksi i lakseoppdrett - Praktiske konsekvenser.

Frode Oppedal, Ole Folkedal, Lars Helge Stien, Thomas Torgersen, David Johansson, Rolf Erik Olsen, Mette Remen
2014

Use of artificial light (LL) to prevent sexual maturation and increase growth in salmon sea cages.

Frode Oppedal, Per Gunnar Fjelldal, Tom Johnny Hansen, Thomas Torgersen, Ole Folkedal
2014

Responses of caged salmon to farm environment.

Frode Oppedal, David Johansson, Frida Maria Laursen, Mette Remen, Ole Folkedal, Jonatan Nilsson, Lars Gansel, Øyvind Johan Korsøen, Timothy David Dempster, Lars Helge Stien
2012

Effects of omission of expected reward on agonistic behaviour and dopaminergic activity of Atlantic salmon (Salmo salar)

Marco Antonio Vindas Alvarado, Ole Folkedal, Tore S Kristiansen, Lars Helge Stien, Bjarne Olai Braastad, Ian Mayer, Erik Höglund, Øyvind Øverli
2012

Frustrert fisk: Uforutsigbar utforing av laks gir økt aggresjon og påvirker hjernens belønnings-system

Marco Antonio Vindas, Ole Folkedal, Ida Beitnes Johansen, Tore S Kristiansen, Lars Helge Stien, Bjarne Olai Braastad, Ian Mayer, Erik Höglund, Øyvind Øverli
2011

SWIM - Salmon welfare index model

Tore S Kristiansen, Lars Helge Stien, Marc Bracke, Ole Folkedal, Anders Kiessling, Silje Kittilsen, Paul Johan Midtlyng, Jonatan Nilsson, Frode Oppedal, Øyvind Øverli
2011

Overall Welfare Assessment of Atlantic Salmon in Sea Cages - SWIM 1.0

Lars Helge Stien, Marc Bracke, Ole Folkedal, Silje Kittilsen, Paul Johan Midtlyng, Jonatan Nilsson, Frode Oppedal, Thomas Torgersen, Øyvind Øverli, Tore S Kristiansen

Rapporter og avhandlinger

2006

Effects of group size and light regime on swimming depth and social interactions of individual Atlantic salmon (Salmo salar L.) in a sea cage

Ole Folkedal, Anders Fernø

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