Jonatan Nilsson
Curriculum Vitae
Læring hos fisk. Jeg doktorerte på dette og har jobbet videre med det etter doktordisputasen.
Atferd og velferd hos laks i både kar og merd.
Effekter av avlusningsmetoder av laks og regnbueørret, særlig termisk avlusning.
Velferdsindikatorer.
Lus- og velferdsovervåking med undervannskamera.
Atferd og velferd hos laks i både kar og merd.
Effekter av avlusningsmetoder av laks og regnbueørret, særlig termisk avlusning.
Velferdsindikatorer.
Lus- og velferdsovervåking med undervannskamera.
Publications
Academic articles
2025
Chronic stress and the development of a depression-like neuroendocrine profile in Atlantic salmon
Journal of Experimental Biology
228
2025
Descaling did not affect osmoregulation, growth or mortality in Atlantic salmon smolts after transfer to brackish or sea water
Aquaculture
605
2025
Clinical Presentation and Pathological Effects of a Hydrozoan Bloom on Farmed Atlantic Salmon
Journal of Fish Diseases
2025
Vertebral deformities in cultured big size Rainbow Trout: Radiological analysis from juvenile to harvest size
Aquaculture
596
2025
Gastrointestinal evacuation and return of appetite in Atlantic halibut (Hippoglossus hippoglossus L.)
Aquaculture
599
2024
Evaluating a crowding intensity scale and welfare indicators for Atlantic salmon in sea cages
Aquaculture Reports
37
2023
Comparison of non-medicinal delousing strategies for parasite (Lepeophtheirus salmonis) removal efficacy and welfare impact on Atlantic salmon (Salmo salar) hosts
Aquaculture International
2023
Effect of water temperature and exposure duration on detachment rate of salmon lice (Lepeophtheirus salmonis); testing the relevant thermal spectrum used for delousing
Aquaculture
562
2023
Welfare effects of environmental hypercapnia quantified by indicators based on morphology and allostatic load in Atlantic salmon (Salmo salar)
Aquaculture
572
2022
Warm water treatment increased mortality risk in salmon
Veterinary and Animal Science
17
2022
Increasing Dip Net Mesh Size Results in More Fin Splits in Post-Smolt Atlantic Salmon (Salmo salar)
Journal of Applied Animal Welfare Science
2022
Acute stress response on Atlantic salmon: a time-course study of the effects on plasma metabolites, mucus cortisol levels, and head kidney transcriptome profile
2021
Full compensatory growth before harvest and no impact on fish welfare in Atlantic salmon after an 8-week fasting period
Aquaculture
546
2021
Long-term welfare effects of repeated warm water treatments on Atlantic salmon (Salmo salar)
Aquaculture
548
2021
The effect of fasting period on swimming performance, blood parameters and stress recovery in Atlantic salmon post molts
Aquaculture
546
2021
Thermal delousing in anaesthetised small Atlantic salmon (Salmo salar) post-smolts: A case study showing the viability of anaesthesia prior to delousing for improved welfare during treatment for salmon lice
Animal Welfare
30
p. 117-120
2020
Does the thermal component of warm water treatment inflict acute lesions on Atlantic salmon (Salmo salar)?
Aquaculture
2020
Efficiency and welfare impact of long-term simultaneous in situ management strategies for salmon louse reduction in commercial sea cages
Aquaculture
520
2020
Genetic variation in growth pattern within a population of farmed Atlantic salmon (Salmo salar) during a standard production cycle
Aquaculture
518
2019
Thermal injuries in Atlantic salmon in a pilot Laboratory trial
Veterinary and Animal Science
8
p. 1-8
2019
Sudden exposure to warm water causes instant behavioural responses indicative of nociception or pain in Atlantic salmon
Veterinary and Animal Science
8
p. 1-8
2019
Sampling of Atlantic salmon Salmo salar from tanks and sea cages is size-biased
Aquaculture
502
p. 272-279
2018
Documentation of multiple species of marine fish trapped in Atlantic salmon sea-cages in Norway
Aquatic Living Resources
31
2017
Habituation and conditioning in gilthead sea bream (Sparus aurata): Effects of aversive stimuli, reward and social hierarchies
Aquaculture Research
49
p. 335-340
2017
Consistent melanophore spot patterns allow long-term individual recognition of Atlantic salmon Salmo salar
Journal of Fish Biology
91
p. 1699-1712
2017
Consistent melanophore spot patterns allow long-term individual recognition of Atlantic
Journal of Fish Biology
2017
Habituation and conditioning in gilthead sea bream (Sparus aurata): effects of aversive stimuli, reward and social hierarchies.
Aquaculture Research
2016
On-farm evaluation of the Salmon Welfare Index Model (SWIM 1.0) - Theoretical and practical considerations
Animal Welfare
25
p. 135-149
2016
Effects of Pumping Height and Repeated Pumping in Atlantic Salmon Salmo salar
Natural Resources
p. 377-383
2016
Effect of predictability on the stress response to chasing in Atlantic salmon (Salmo salar L.) parr
Physiology and Behavior
153
p. 1-6
2014
Innovative behaviour in fish: Atlantic cod can learn to use an external tag to manipulate a self-feeder
Animal Cognition
17
p. 779-785
2013
PIT tagged individual Atlantic salmon registrered at static depth positions in a sea cage: Vertical size stratification and implications for fish sampling
Aquacultural Engineering
55
p. 32-36
2013
Aluminum exposure impacts brain plasticity and behavior in Atlantic salmon (Salmo salar)
Journal of Experimental Biology
216
p. 3148-3155
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
Reviews in Aquaculture
5
p. 33-57
2012
Sea caged Atlantic salmon display size-dependent swimming depth
Aquatic Living Resources
25
p. 143-149
2012
Evaluation of self-feeders as a tool to study diet preferences in groups of Atlantic cod (Gadus morhua)
Aquatic Living Resources
25
p. 251-258
2012
From fright to anticipation: Reward conditioning versus habituation to a moving dip net in farmed Atlantic cod (Gadus morhua)
Applied Animal Behaviour Science
138
p. 118-124
2012
Duration of effects of acute environmental changes on food anticipatory behaviour, feed intake, oxygen consumption, and cortisol release in Atlantic salmon parr
Physiology and Behavior
105
p. 283-291
2012
Skirt around a salmon sea cage to reduce infestation of salmon lice resulted in low oxygen levels
Aquacultural Engineering
51
p. 21-25
2010
Habituation rate and capacity of Atlantic salmon (Salmo salar) parr to sudden transitions from darkness to light
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)
Aquaculture International
18
p. 991-1001
2010
Exploration and learning of demand-feeding in Atlantic cod (Gadus morhua)
Aquaculture
306
p. 384-387
2010
Learning and anticipatory behaviour in a "sit-and-wait" predator: The Atlantic halibut
Behavioural Processes
83
p. 257-266
2008
Learning in cod (Gadus morhua): long trace interval retention
Animal Cognition
11
p. 215-222
2008
Sign- and goal-tracking in Atlantic cod (Gadus morhua)
Animal Cognition
11
p. 651-659
Scientific lectures
2025
Hva er god fiskevelferd og hvor trekker vi grensen mellom hva som er bra og dårlig?
2025
Regnbueørret mister likevekten under termisk eksponering
2024
Hjertevarme hos regnbueørret – hva skjer når den avluses i varmt vann
2024
Moving sterile Crispr salmon from the tank to sea cages - regulatory barriers and social impacts
2023
Outcome individual-based welfare indicators
2023
Enrichment in salmonid aquaculture research
2023
Velferdseffekter av skjelltap
2023
LAKSVEL - Utvikling og evaluering av metode for rutinemessig velferdsovervåking av laks i norske matfiskanlegg
2023
Trenging- når er nok nok?-trengeskala og velferdsindikasjoner
2023
Unødig røff behandling ved IMM
2023
Effekt på dyrevelferd av gjentatt termisk behandling med ulik delta T
2022
Exploring central and peripheral appetite-regulating peptides in the brain and gastrointestinal tract in grow-out Atlantic halibut
2022
Effekt på dyrevelferd av gjentatt termisk behandling med ulik dt
2022
Effekt på dyrevelferd av gjentatt termisk behandling med ulik dt
2022
LAKSVEL
2022
LAKSVEL - Standardisert operasjonell velferdsovervåking for laks i matfiskanlegg
2022
LAKSVEL - Utvikling og evaluering av metode for rutinemessig velferdsovervåking av laks i norske matfiskanlegg
2022
Miljøforhold – lekende lett å skape trivsel?
2022
Exploring central and peripheral appetite-regulating peptides in the brain and gastrointestinal tract in grow-out Atlantic halibut
2022
Laksvel - Utvikling og evaluering av metode for rutinemessig velferdsovervåkning av laks i norske matfiskanlegg
2021
Gastric evacuation in three sizes of grow-out Atlantic halibut Hippoglossus hippoglossus fed different pellets sizes
2021
Vekst er mer enn kilo og gram
2020
Arbeid med velferdsevaluering ved Havforskningsinstituttet
2020
AI i oppdrett - Er biologisk kunnskap og praktiske hensyn ivaretatt?
2020
LAKSVEL- kort orientering FHF prosjekt
2020
Er varmt vann smertefullt for laks? ‐Atferd og vevsskader
2019
Group size in fish studies matters - how many extra fish do you need?
2019
Helse og velferdsindikatorer som kan brukes i forvaltningsøyemed
2019
Er varmt vann smertefullt for laks? -Atferd og vevsskader, foreløpige resultater
2019
Does sudden exposure to warm water cause pain in Atlantic salmon?
2019
Does sudden exposure to warm water cause pain in Atlantic salmon?
2019
Velferdovervåkning hos oppdrettsfisk
2018
Er varmt vann smertefullt for fisken?
2018
Feasibility of reducing lice infestations on farmed salmon using an airdome for swim bladder refilling during continuous submergence.
2018
Kommentar til etiske retningslinjer for bruk av dyr i forskning
2018
Operative velferdsindikatorer ved lusebehandling (FISHWELL)
2018
Bruk av undervanns luftkuppel for oppdrett av laks i nedsenkte merder
2017
Hvilke velferdsindikatorer skal brukes i ulike anleggskonsepter for lakseoppdrett?
2017
FISHWELL; en verktøykasse for velferdsdokumentasjon
2017
Ny håndbok: Velferdsindikatorer for oppdrettslaks:Hvordan vurdere og dokumentere fiskevelferd
2017
La laksen fôre "seg selv"!
2017
Vekst hos laksesøsken
2017
SAMPLING OF ALTANTIC SALMON (Salmo salar) FROM TANKS AND SEA CAGES IS SIZE-BIASED
2017
Velferdsindikatorer for laks og regnbueørret (FISHWELL)
2017
AN INTRODUCTION TO THE FISHWELL HANDBOOK – AN INDICATOR-BASED GUIDE FOR ASSESSING THE WELFARE OF ATLANTIC SALMON Salmo salar L. OUT ON THE FARM
2016
Er atferd hos oppdrettslaks familieavhengig?
2016
Kunnskapssammenstilling og fiskevelferd for laks og regnbueørret i oppdrett (FISHWELL)
2016
Passe store grupper: Balanse mellom Reduction og Refinement i forsøk med laks
2015
Skade og velferd
2014
Responses of caged salmon to farm environment.
2014
Performance in sea of Atlantic salmon exposed to crowding and pumping during pre-smolt phase
2013
Repeated crowding and pumping impair Atlantic salmon smolt quality
2011
SWIM - Salmon welfare index model
2011
Overall Welfare Assessment of Atlantic Salmon in Sea Cages - SWIM 1.0
Poster
2017
ARE SWIMMING DEPTH PREFERENCES IN FARMED ATLANTIC SALMON GENETICALLY DEPENDENT?
Reports and dissertations
2025
Laksvel - A standardised, operational welfare monitoring protocol for Atlantic salmon held in sea cages
Rapport fra havforskningen
2025
Risikorapport norsk fiskeoppdrett 2025 - Produksjonsdødelighet hos oppdrettsfisk og miljøeffekter av norsk fiskeoppdrett
Rapport fra havforskningen
2024
Risikorapport norsk fiskeoppdrett 2024 - Produksjonsdødelighet hos oppdrettsfisk og miljøeffekter av norsk fiskeoppdrett
Rapport fra havforskningen
2022
Laksvel - Standardisert operasjonell velferdsovervåking for laks i matfiskanlegg
2022
Effekt på dyrevelferd av gjentatte termiske behandlinger med ulik Δt, ulik utgangstemperatur og ulik behandlingstemperatur
2021
Andre samlerapport: velferd for triploid laks i Nord-Norge - Sluttrapport, utsett 2018
2020
Welfare Indicators for farmed rainbow Trout: Tools for assessing Fish welfare
2020
Velferdsindikatorer for regnbueørret i oppdrett: Hvordan vurdere og dokumentere fiskevelferd
2019
Summary and status of deep lights and deep feed use in commercial settings: welfare, behaviour and infestation at three case study sites — End report from the FHF projects 901154 “Dypelysogfôring”
2019
Avlusing med kaldt vann? – effektivitet og laksens velferd — sluttrapport FHF prosjekt 901488
2019
Use of deep lights and deep feed in commercial settings: effect on welfare, behaviour and infestation, summary and status at three case study sites/ Bruk av dype lys og dyp fôring i kommersiell skala; effekter på velferd, atferd og lusepåslag ved 3 oppdrettsanlegg
2018
Lusepåslag og velferd hos dypfôret og overflatefôret laks på lokalitet Skrubbholmen midtvinters.
2018
Assessment of long-term implementation of sea lice prevention technologies: efficiency in reducing infestations and impact on fish welfare.
2018
Assessment of long-term implementation of sea lice prevention technologies: efficiency in reducing infestations and impact on fish welfare
2018
Welfare Indicators for farmed Atlantic salmon: Tools for assessing fish welfare
2018
Lusepåslag og velferd hos dypfôret og overflatefôret laks på lokalitet Skrubbholmen midtvinters. – Delrapport fra FHF-prosjekt 901154 «Dypelysogfôring»
2018
Velferdsindikatorer for oppdrettslaks: Hvordan vurdere og dokumentere fiskevelferd. 3. utgave
2017
Environment, lice levels, welfare and salmon swim depth at Kobbavika site with surface or deep feeding combined with artificial light/ Miljø, lusenivå, velferd og laksens svømmedyp ved lokalitet Kobbavika ved bruk av utfôring i overflate eller under vann kombinert med kunstig lys.
2017
Environment, lice levels, welfare and salmon swim depth at Kobbavika site with surface or deep feeding combined with artificial light. – part of CAC2015G production at Marine Harvest “The use of deep feeding and deep lights in lice mitigation” and FHF project 901154 “Dypelysogforing”
2017
Velferdsindikatorer for oppdrettslaks: Hvordan vurdere og dokumentere fiskevelferd
2015
Pumping og håndtering av smolt
2008
Learning and anticipatory behaviour in cod and halibut
2004
Acoustic behaviour of spawning cod (Gadus morhua L.)
2003
Marine Biological Excursion to Malaysia and Viet Nam
Net reports
Net reports
- Risikorapport norsk fiskeoppdrett 2025
- Risikorapport norsk fiskeoppdrett 2024
- Effekt på dyrevelferd av gjentatte termiske behandlinger med ulik Δt, ulik utgangstemperatur og ulik behandlingstemperatur
- Laksvel
- Andre samlerapport: velferd for triploid laks i Nord-Norge
- Avlusing med kaldt vann? – effektivitet og laksens velferd
- Summary and status of deep lights and deep feed use in commercial settings: welfare, behaviour and infestation at three case study sites
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