Pål Arne Bjørn
Publications
Academic articles
2024
Genetic analyses verify sexually mature escaped farmed Atlantic cod and farmed cod eggs in the natural environment
Evolutionary Applications
17
2024
Ecological interactions between farmed Atlantic salmon and wild Atlantic cod populations in Norway: A review of risk sources and knowledge gaps
Reviews in Aquaculture
2023
Movement diversity and partial sympatry of coastal and Northeast Arctic cod ecotypes at high latitudes
Journal of Animal Ecology
2023
Movement diversity and partial sympatry of coastal and Northeast Arctic cod ecotypes at high latitudes
Journal of Animal Ecology
2023
Behaviour and habitat use of first-time migrant Arctic charr: novel insights from a subarctic marine area
Marine Ecology Progress Series
709
p. 77-90
2022
Micro- and macro-habitat selection of Atlantic salmon, Salmo salar, post-smolts in relation to marine environmental cues
ICES Journal of Marine Science
79
p. 1394-1407
2022
Behavioural responses of wild anadromous Arctic char experimentally infested in situ with salmon lice
ICES Journal of Marine Science
79
p. 1853-1863
2021
Sea trout Salmo trutta in the subarctic: home-bound but large variation in migratory behaviour between and within populations
Journal of Fish Biology
p. 1-12
2021
Losing the 'arms race': Multiresistant salmon lice are dispersed throughout the North Atlantic Ocean
Royal Society Open Science
8
p. 1-10
2020
Aquaculture-driven evolution: distribution of pyrethroid resistance in the salmon louse throughout the North Atlantic in the years 2000–2017
ICES Journal of Marine Science
77
p. 1806-1815
2020
Timing is everything: Survival of Atlantic salmon Salmo salar postsmolts during events of high salmon lice densities
Journal of Applied Ecology
57
p. 1149-1160
2020
Impacts of salmon lice on mortality, marine migration distance and premature return in sea trout
Marine Ecology Progress Series
635
p. 151-168
2019
Salmon Lice Sampled from Wild Atlantic Salmon and Sea Trout Throughout Norway Display High Frequencies of the Genotype Associated with Pyrethroid Resistance
Aquaculture Environment Interactions
11
p. 459-468
2019
Sampling planktonic salmon lice in norwegian fjords
Aquaculture Environment Interactions
11
p. 701-715
2019
Sampling planktonic salmon lice in Norwegian fjords
Aquaculture Environment Interactions
11
p. 701-715
2019
Salmon lice sampled from wild Atlantic salmon and sea trout throughout Norway display high frequencies of the genotype Associated with pyrethroid resistance
Aquaculture Environment Interactions
11
p. 459-468
2018
Towards direct evidence of the effects of salmon lice (Lepeophtheirus salmonis Kr?yer) on sea trout (Salmo trutta L.) in their natural habitat: proof of concept for a new combination of methods
Environmental Biology of Fishes
101
p. 1677-1692
2018
Modelled salmon lice dispersion and infestation patterns in a sub-arctic fjord
ICES Journal of Marine Science
75
p. 1733-1747
2018
Migration of Atlantic salmon post-smolts in a fjord with high infestation pressure of salmon lice
Marine Ecology Progress Series
592
p. 243-256
2018
Sea trout adapt their migratory behaviour in response to high salmon lice concentrations
Journal of Fish Diseases
41
p. 953-967
2017
Salmon lice infestations on sea trout predicts infestations on migrating salmon post-smolts
ICES Journal of Marine Science
74
p. 2354-2363
2017
The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout
Scientific Reports
7:14258
p. 1-10
2017
Tracking escaped Atlantic cod (Gadus morhua L.) aggregated around Norwegian farms: Considerations for management strategies
Fisheries Management and Ecology
24
p. 265-273
2017
Salmon lice infestations on sea trout predicts infestations on migrating salmon post-smolts
ICES Journal of Marine Science
74
p. 2354-2363
2016
Marine life of the sea trout
Marine Biology
163
2016
Large-scale use of fish traps for monitoring sea trout (Salmo trutta) smolts and sea lice (Lepeophtheirus salmonis) infestations: efficiency and reliability
Marine Biology Research
12
p. 76-84
2016
Variations in coastal fish species composition captured by traps in Romsdalsfjord, Western Norway
International Aquatic Research
8
p. 109-119
2016
Nearby farms are a source of lice for wild salmonids: a reply to Jansen et al. (2016)
Aquaculture Environment Interactions
8
p. 352-358
2016
Toward a model-based prediction system for salmon lice infestation pressure
Aquaculture Environment Interactions
8
p. 527-542
2016
Estimating the temporal overlap between post-smolt migration of Atlantic salmon and salmon lice infestation pressure from fish farms
Aquaculture Environment Interactions
8
p. 511-525
2016
Occurrence of salmonid alphavirus (SAV) and piscine orthoreovirus (PRV) infections in wild sea trout Salmo trutta in Norway
Diseases of Aquatic Organisms
120
p. 109-113
2015
Statistical and ecological challenges of monitoring parasitic salmon lice infestations in wild salmonid fish stocks
Aquaculture Environment Interactions
7
p. 267-280
2015
Efectos del piojo del salmón Lepeophtheirus salmonis(Copepoda: Caligidae) en las poblaciones de truchas (Salmo trutta) de la costa NE Atlántica
Revista de biologia marina y oceanografia
50
p. 411-426
2015
Effects of salmon lice Lepeophtheirus salmonis on wild sea trout Salmo trutta—a literature review
Aquaculture Environment Interactions
7
p. 91-113
2015
Risk assessment of the environmental impact of Norwegian Atlantic salmon farming
ICES Journal of Marine Science
72
p. 997-1021
2014
Salmon lice infection on wild salmonids in marine protected areas: an evaluation of the Norwegian ‘National Salmon Fjords’
Aquaculture Environment Interactions
5
p. 1-16
2014
Effects of salmon lice infection on the behaviour of sea trout in the marine phase
Aquaculture Environment Interactions
5
p. 221-233
2013
Post-escape dispersal of juvenile Atlantic cod Gadus morhua from Norwegian fish farms and their potential for recapture
Aquaculture Environment Interactions
3
p. 107-116
2012
Salmon lice-induced mortality of Atlantic salmon postsmolts experiencing episodic acidification and recovery in freshwater
Aquaculture
362-363
p. 193-199
2012
Movements of lumpsucker females in a northern Norwegian fjord during the spawning season
Environmental Biology of Fishes
93
p. 475-481
2012
Recovery of Atlantic salmon smolts following aluminum exposure defined by changes in blood physiology and seawater tolerance
Aquaculture
362-363
p. 232-240
2012
Net-biting and escape behaviour in farmed Atlantic cod Gadus morhua: effects of feed stimulants and net traits
Aquaculture Environment Interactions
3
p. 1-9
2012
Extent and ecological importance of escape through spawning in sea-cages for Atlantic cod
Aquaculture Environment Interactions
3
p. 35-51
2012
Stocking location and predation by marine fishes affect survival of hatchery-reared Atlantic salmon smolts
Fisheries Management and Ecology
19
p. 400-409
2011
Proxy Measures of Fitness Suggest Coastal Fish Farms Can Act as Population Sources and Not Ecological Traps for Wild Gadoid Fish
PLOS ONE
6
2011
Waste feed from coastal fish farms: A trophic subsidy with compositional side-effects for wild gadoids
Estuarine, Coastal and Shelf Science
91
p. 559-568
2011
Disease interaction and pathogens exchange between wild and farmed fish populations with special reference to Norway
Aquaculture
315
p. 167-186
2011
Do salmon farms increase the concentrations of mercury and other elements in wild fish?
Journal of Environmental Monitoring
13
p. 1687-1694
2011
Discrimination of wild and farmed Atlantic cod (Gadus morhua) based on morphology and scale-circuli pattern
ICES Journal of Marine Science
68
p. 1928-1936
2011
Area protection may reduce salmon louse infection risk to wild salmonids
Aquaculture Environment Interactions
1
p. 233-244
2010
Species-specific patterns of aggregation of wild fish around fish farms
Estuarine, Coastal and Shelf Science
86
p. 271-275
2010
Effects of the sea louse Lepeophtheirus salmonis on temporal changes in cortisol, sex steroids, growth and reproductive investment in Arctic charr Salvelinus alpinus
Journal of Fish Biology
76
p. 2318-2341
2010
Salmon Farms as a Source of Organohalogenated Contaminants in Wild Fish
Environmental Science and Technology
44
p. 8736-8743
2010
Spatiotemporal distribution of coastal and oceanic Atlantic cod Gadus morhua sub-groups after escape from a farm
Aquaculture Environment Interactions
1
p. 11-19
2009
Escape-related behaviour of Atlantic cod, Gadus morhua L., in a simulated farm situation
Aquaculture Research
40
p. 26-34
2009
Spatiotemporal distribution of Atlantic cod (Gadus morhua L.) with intact and blocked olfactory sense during spawning season in a Norwegian fjord with intensive salmon farming
Aquaculture
281
p. 87-94
2009
Coastal salmon farms attract large and persistent aggregations of wild fish: an ecosystem effect
Marine Ecology Progress Series
385
p. 1-14
2009
High connectivity of salmon farms revealed by aggregation, residence and repeated movements of wild fish among farms
Marine Ecology Progress Series
384
p. 251-260
2009
Spatiotemporal distribution of Atlantic cod (Gadus morhua L.) with intact and blocked olfactory sense during the spawning season in a Norwegian fjord with intensive salmon farming
Aquaculture
286
p. 36-44
2008
Movements and spatiotemporal distribution of escaped farmed and local wild Atlantic cod (Gadus morhua L.)
Aquaculture Research
39
p. 158-170
2007
Behavioural responses in wild cod (Gadus morhua L.) exposed to fish holding water
Aquaculture
262
p. 260-267
2007
Salmon lice or suboptimal water quality - Reasons for reduced postsmolt survival?
Aquaculture
273
p. 374-383
2007
Physiological consequences of "premature freshwater return" for wild sea-run brown trout (Salmo trutta) postsmolts infested with sea lice (Lepeophtheirus salmonis)
Canadian Journal of Fisheries and Aquatic Sciences
64
p. 1360-1369
2007
Fjord migration and survival of wild and hatchery-reared Atlantic salmon and wild brown trout post-smolts
Hydrobiologia
582
p. 99-107
2007
Effects of salmon lice infection and salmon lice protection on fjord migrating Atlantic salmon and brown trout post-smolts
Hydrobiologia
582
p. 35-42
2007
Differences in risks and consequences of salmon louse, Lepeophtheirus salmonis (Kroyer), infestation on sympatric populations of Atlantic salmon, brown trout, and Arctic charr within northern fjords
ICES Journal of Marine Science
64
p. 386-393
2007
Temporal variability in marine feeding of sympatric Arctic charr and sea trout
Journal of Fish Biology
70
p. 837-852
2007
You Wouldn't Spawn in a Septic Tank, Would You?
Human Ecology
35
p. 601-611
2007
Does increased abundance of sea lice influence survival of wild Atlantic salmon post-smolt?
Journal of Fish Biology
71
p. 1639-1648
2006
Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo salar) smolts
Canadian Journal of Fisheries and Aquatic Sciences
63
p. 2809-2821
2005
Migration of hatchery-reared Atlantic salmon and wild anadromous brown trout post-smolts in a Norwegian fjord system
Journal of Fish Biology
66
p. 86-96
2005
A review of the Norwegian 'National Action Plan Against Salmon LIce on Salmonids': The effect on wild salmonids
Aquaculture
246
p. 79-92
2005
Trophically transmitted parasites in wild Atlantic salmon post-smolts from Norwegian fjords
Journal of Fish Biology
66
2005
Population dynamics of salmon lice Lepeophtheirus salmonis on Atlantic salmon and sea trout
Marine Ecology Progress Series
290
p. 263-275
2004
Short-term freshwater exposure benefits sea lice-infected Atlantic salmon
Journal of Fish Biology
64
p. 1593-1604
2004
Migration speeds and orientation of Atlantic salmon and sea trout post-smolts in a Norwegian fjord system
Environmental Biology of Fishes
71
p. 305-311
2004
Geographical differences in marine feeding of Atlantic salmon post-smolts in Norwegian fjords
Journal of Fish Biology
64
p. 1655-1679
2003
Physiological impact of sea lice on swimming performance of Atlantic salmon
Journal of Fish Biology
62
p. 1000-1009
2002
Salmon lice, Lepeophtheirus salmonis (Krøyer), infestation in sympatric populations of Arctic char, Salvelinus alpinus (L.), and sea trout, Salmo trutta (L.), in areas near and distant from salmon farms
ICES Journal of Marine Science
59
p. 131-139
Other journal contributions
2020
Endringer i rekebestanden kan skyldes mange faktorer. Derfor kan man ikke generalisere om fangstutvikling
Fiskeribladet
2009
Salmon Lice Infection of Farmed and Wild Salmonids in Norway: an Overview
Integrative and Comparative Biology
49
p. E74-E74
Scientific lectures
2023
Fine-scale behaviour of Atlantic cod ecotypes
2020
Effekter av lakselus på sjøørret i naturen
2018
The use of PIT-tagging technology to monitor sea trout behaviour due to sea lice
2018
To live or to grow? Costs and benefits of sea trout adaptive behavior to heavy salmon lice (Lepeophtheirus salmonis) infestations
2018
Salmon lice as an environmental indicator for managment of Norwegian salmon farming
2018
Modelled salmon lice dispersion and infestation between farms in a sub-arctic fjord system
2017
Operasjonell lusevarsling og kartlegging av områder med forhøyet smittepress
2017
Trafikklysmodellen og kunnskapsgrunnlaget
2016
HI modellen: Presentasjon av modell og prediksjoner. Påslag på smolt i bur, alle områder.
2016
Lusesituasjonen i Hardanger
2016
Forskningsbaserte råd om lakselus
2016
The effect of salmon lice infections on wild caught Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) postsmolts – a laboratory study
2016
HI modellen: Presentasjon av modell og predikasjoner. Påslag på smolt i bur, alle områder.
2015
A fate assessment key for acoustically tagged tagged fish
2014
The predictability of sea lice density in Norwegian fjords
2014
Towards an assessment of regional salmon lice infection pressure
2014
Luseovervåking og Rådgiving i henhold til miljømessig bærekraft
2014
The effect of synchronized fish farm fallowing: experiences from Hardangerfjord 2010-2013
2013
Tracking sea trout responses to salmon lice infection
2013
Development of oceanographic models. How to find the regional sea lice infestation pressure?
2011
Discrimination of wild and farmed Atlantic cod Gadus morhua L. on basis of morphology and scale circuli pattern
2009
Parasittfaunaen hos villtorsk og oppdrettstorsk
2009
Atlantic salmon smolt recovery rates following short term aluminum exposure
2009
Salmon lice induced mortality of Atlantic salmon postsmolts experiencing a previous history of poor water quality in freshwater
2008
Survival and migration of hatchery-reared Atlantic salmon smolts and interactions with marine predatory fishes – preliminary results
2008
Smolten er så liten og havet er så stort - vi følger postsmoltens vandringer i norske fjordsystemer
2008
I smoltens kjøvann. Nytt om vandring av postsmolt i fjorder
2005
Salmon lice or suboptimal water quality ? reasons for reduced postsmolt survival?
2004
Forsuring eller lakselus: effekter på postsmoltoverlevelse
Poster
2018
Anadromous whitefish (Coregonus lavaretus L.) as host for salmon lice (Lepeophtheirus salmonis Krøyer)
2018
The role of water currents in the migration behavior of salmon postsmolts: Implications for salmon lice risk asessment
2017
Anadromous whitefi sh (Coregonus lavaretus L.) as host for salmon lice(Lepeophtheirus salmonis Krøyer)
2017
Survival and habitat use of sea trout post-smolts artificially infested with salmon lice: A pilot study
2016
Use of sentinel cages to monitor the effect of fallowing regimes on salmon lice infestations
2016
Sampling methods for monitoring sea lice on wild sea trout
2016
Effects of salmon lice on the survival and growth of sea trout
2016
Effects of salmon lice on sea trout - a review of current knowledge
2016
Toward a model-based prediction system for salmon lice infestation pressure
2016
Towards a model based prediction system for salmon lice infestation pressure
2016
Can a qualitative use of a hydrodynamic dispersal model for sea lice predict areas with high and low infestation levels on wild sea trout?
2016
Estimating the temporal overlap between post-smolt migration of Atlantic salmon and salmon lice infestation pressure from fish farms.
2016
Clustering Norwegian Salmon Farms into Production Areas
2014
Effect of salmon lice on sea trout in years of high and low infestation pressure
2014
Salmon lice infection on wild salmonids in marinw protected areas: an evaluation of the Norwegian "National Salmon Fjords"
2012
Fluctuations in the physical climate of the Hardangerfjord and its influence on salmon lice distribution
2012
The influence area of salmon lice copepodids from fish farms in a north Norwegian fjord
2009
Are we following a tagged fish –or the predator that has eaten it?
2009
Migration and survival of hatchery-reared Atlantic salmon smolts in a river and a fjord
2008
Gyrodactylus parasites infecting farmed and wild cod in Norway - a status report from the CODPAR project
2008
Two new species of parasites and three new host records from cod in Norway
2008
Gyrodactylus parasites infecting farmed and wild cod in Norway - A report from COPDAR project
2007
Comparative studies of the parasite fauna of farmed and wild Atlantic cod along the Norwegian coast
Reports and dissertations
2022
Risikorapport norsk fiskeoppdrett 2022 - kunnskapsstatus - Effekter på miljø og dyrevelferd i norsk fiskeoppdrett
2022
Risikorapport norsk fiskeoppdrett 2022 - risikovurdering — Effekter på miljø og dyrevelferd i norsk fiskeoppdrett
2021
Kunnskapsgrunnlag for mulig påvirkning fra oppdrettstorsk og levendelagret torsk på villtorsk
2020
Kunnskapsstatus lakselus 2020 - Effekt av lakselus på vill laksefisk (2010-2019)
2018
Lakselusinfestasjon på vill laksefisk våren og sommeren 2018 – Framdriftsrapport til Mattilsynet september 2018
2018
Annual report on health monitoring of wild anadromous salmonids in Norway 2017
2018
Lakselusinfestasjon på vill laksefisk våren 2018 – Framdriftsrapport til Mattilsynet juni 2018
2018
Effekten av nasjonale laksefjorder på risikoen for lakselusinfestasjon hos vill laksefisk langs norskekysten - Sluttrapportering av ordningen med nasjonale laksefjorder
2018
Lakselusinfestasjon på vill laksefisk langs norskekysten i 2017
2017
Lakselusinfestasjon på vill laksefisk langs norskekysten i 2016. Med vekt på modellbasert varsling og tilstandsbekreftelse.
2017
Smittepress fra lakselus på vill laksefisk – estimert fra luselarvefelt med stor variabilitet
2017
Hydrodynamisk spredningsmodell for lakselus og konsentrasjon av smittsomme kopepoditter
2016
Lakselusinfeksjonen på vill laksefisk langs norskekysten i 2015. En fullskala test av modellbasert varsling og tilstandsbekreftelse.
2014
Effects of salmon lice on sea trout
2014
Effekter av lakselus på sjøørret - en litteraturoppsummering
2014
Risikovurdering norsk fiskeoppdrett 2013
2013
Risikovurdering norsk fiskeoppdrett 2012
2013
Lakselusinfeksjonen på vill laksefisk langs Norskekysten i 2013. Sluttrapport til Mattilsynet
2013
Annual report on health monitoring of wild anadromous salmonids in Norway
2013
Laksefisk og luseovervåking i Romsdalsfjorden – del 2
2012
Hva avgjør lakselusinfeksjon hos vill laksefisk? Statistisk bearbeiding av data fra nasjonal lakselusovervåking, 2004-2010
2012
Lakselusinfeksjonen på vill laksefisk langs norskekysten i 2012. Sluttrapport til Mattilsynet
2012
Laksefisk og luseovervåking i Romsdalsfjorden
2011
Smitte mellom oppdrettsfisk og villfisk-hva vet vi?
2011
Parasitter på vill og oppdrettet torsk — en sammenligning
2009
Fangstbasert akvakultur. Tilvenning (weaning) av villtorsk til tørrfôr
2008
Nasjonal overvåkning av lakselusinfeksjon på ville bestander av laks, sjøørret og sjørøye i forbindelse med nasjonale laksevassdrag og laksefjorder
2007
Videreføring av prosjektet "Behavioural responses in wild coastal cod exposed to salmon farms: possible effects of salmon holding water - a field and experimental study”
2007
Registreringer av lakselus på laks, sjøørret og sjørøye i 2006
2006
Pilotanlegg tidevannskraft Kvalsundet – Statusbeskrivelse og mulige konsekvenser for naturmiljøet
2005
None
2005
Risiko, forvaltning og bekjempelse av lakselussmitte på vill og oppdretta laksefisk
2005
Registreringer av lakselus på laks, sjøørret og sjørøye i 2004
2005
I smoltens kjølvann. Side 48 - 54 i: Svenning, M.-A. & Jonsson, B. (eds.) 2005. Kystøkologi: økosystemprosesser og menneskelig aktivitet
2003
Registrering av lakselus på laks, sjøørret og sjørøye i 2002
2000
Lakselus på vill sjøørret og sjørøye i Troms sommeren 1999
1999
Registreringer av lakselus på vill sjøørret og sjørøye i Troms sommeren 1998.
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