Erik-Jan Lock

Forskningssjef
Telefon: 95401244
Avdeling: Behov og velferd

Publikasjoner

Vitenskapelige artikler (NVI)

2018

Know your fish: A novel compound-specific isotope approach for tracing wild and farmed salmon

Yiming V. Wang, Alex HL Wan, Erik-Jan Lock, Nils Andersen, Christine Winter-Schuh, Thomas Larsen
Food Chemistry 256 p. 380-389
2018

Utilization of H2SO4-hydrolysed phosphorous from herring bone by-products in feed for Atlantic salmon (Salmo salar) 0+ postsmolt

Sissel Albrektsen, Erik-Jan Lock, Grete Bæverfjord, Mona Elisabeth Pedersen, Aleksei Krasnov, Harald Rune Takle, Eva Veiseth-Kent, Robin Ørnsrud, Rune Waagbø, Elisabeth Ytteborg
Aquaculture Nutrition 24 p. 348-365
2018

Changes in water temperature and oxygen: the effect of triploidy on performance and metabolism in large farmed Atlantic salmon

Florian Sambraus, Mette Remen, Rolf Erik Olsen, Tom Johnny Hansen, Rune Waagbø, Thomas Torgersen, Erik-Jan Lock, Albert Imsland, Thomas Fraser, Per Gunnar Fjelldal
Aquaculture Environment Interactions 10 p. 157-172
2018

Mineral nutrition and bone health in salmonids

Grete Bæverfjord, Antony Prabhu, Per Gunnar Fjelldal, Sissel Albrektsen, Bjarne Hatlen, Vegard Denstadli, Elisabeth Ytteborg, Harald Rune Takle, Erik-Jan Lock, Marc Berntssen, Anne-Katrine Lundebye, Torbjørn Einar Åsgård, Rune Waagbø
Reviews in Aquaculture p. 1-26
2018

Chemical characterization of 21 species of marine macroalgae common in Norwegian waters: benefits of and limitations to their potential use in food and feed

Irene Biancarosa, Ikram Belghit, Christian Guido Bruckner, Nina Sylvia Liland, Rune Waagbø, Heidi Amlund, Svenja Heesch, Erik-Jan Lock
Journal of the Science of Food and Agriculture 98 p. 2035-2042
2018

The chemical composition of two seaweed flies (Coelopa frigida and Coelopa pilipes) reared in the laboratory

Irene Biancarosa, Nina Sylvia Liland, Nicola Day, Ikram Belghit, Heidi Amlund, Erik-Jan Lock, Andre S. Gilburn
Journal of Insects as Food and Feed 4 p. 135-142
2018

Zinc uptake in fish intestinal epithelial model RTgutGC: Impact of media ion composition and methionine chelation

P. Antony Jesu Prabhu, Theodora Stewart, Marina Carreiro-Silva, Heidi Amlund, Robin Ørnsrud, Erik-Jan Lock, Rune Waagbø, Christer Hogstrand
Journal of Trace Elements in Medicine and Biology 50 p. 377-383
2017

Lower levels of Persistent Organic Pollutants, metals and the marine omega 3-fatty acid DHA in farmed compared to wild Atlantic salmon (Salmo salar)

Anne-Katrine L. Haldorsen, Erik-Jan Lock, Josef Daiel Rasinger, Ole Jakob Nøstbakken, Rita Hannisdal, Egil Karlsbakk, Vidar Wennevik, Abdullah Sami Madhun, Lise Madsen, Ingvild Eide Graff, Robin Ørnsrud
Environmental Research 155 p. 49-59
2017

In-depth metabolic profiling of marine macroalgae confirms strong biochemical differences between brown, red and green algae

Ikram Belghit, Josef Daiel Rasinger, Svenja Heesch, Irene Biancarosa, Nina Sylvia Liland, Bente Elisabeth Torstensen, Rune Waagbø, Erik-Jan Lock, Christian Guido Bruckner
Algal Research 26 p. 240-249
2017

Modulation of nutrient composition of black soldier fly (Hermetia illucens) larvae by feeding seaweed-enriched media

Nina Sylvia Liland, Irene Biancarosa, Pedro Araujo, Daan Biemans, Christian Guido Bruckner, Rune Waagbø, Bente Elisabeth Torstensen, Erik-Jan Lock
PLoS ONE 12
2017

Uptake of heavy metals and arsenic in black soldier fly (Hermetia illucens) larvae grown on seaweed-enriched media

Irene Biancarosa, Nina Sylvia Liland, Daan Biemans, Pedro Araujo, Christian Guido Bruckner, Rune Waagbø, Bente Elisabeth Torstensen, Erik-Jan Lock, Heidi Amlund
Journal of the Science of Food and Agriculture 98 p. 2176-2183
2016

Increased dietary phosphorous prevents vertebral deformities in triploid Atlantic salmon (Salmo salar L.)

Per Gunnar Fjelldal, Tom Johnny Hansen, Erik-Jan Lock, Anna Wargelius, Thomas Fraser, Florian Sambraus, A. El-Mowafi, Sissel Albrektsen, Rune Waagbø, Robin Ørnsrud
Aquaculture Nutrition 22 p. 72-90
2016

Utilization of acid hydrolysed phosphorous from herring bone by-products in feed for Atlantic salmon (Salmo salar) start-feeding fry

Elisabeth Ytteborg, Grete Bæverfjord, Erik-Jan Lock, Mona Elisabeth Pedersen, Harald Rune Takle, Robin Ørnsrud, Rune Waagbø, Sissel Albrektsen
Aquaculture 459 p. 173-184
2016

Dietary vitamin A supplementation ameliorates the effects of poly-aromatic hydrocarbons in Atlantic salmon (Salmo salar)

Marc Berntssen, Robin Ørnsrud, Josef Daniel Rasinger, Liv Ingeborg Rosvoll Søfteland, Erik-Jan Lock, Kjersti Kolås, Mari Moren, Ketil Hylland, Joana Silva, Johan Johansen, Kai Kristoffer Lie
Aquatic Toxicology 175 p. 171-183
2016

Amino acid composition, protein content, and nitrogen-to-protein conversion factors of 21 seaweed species from Norwegian waters

Irene Biancarosa, Marit Espe, Christian Guido Bruckner, Svenja Heesch, Nina Sylvia Liland, Rune Waagbø, Bente Elisabeth Torstensen, Erik-Jan Lock
Journal of Applied Phycology
2016

Atlantic salmon (Salmo salar) require increased dietary levels of B-vitamins when fed diets with high inclusion of plant based ingredients

Gro Ingunn Hemre, Erik-Jan Lock, Pål Asgeir Olsvik, Kristin Hamre, Marit Espe, Bente Elisabeth Torstensen, Joana Silva, Ann-Cecilie Hansen, Rune Waagbø, JS Johansen, Monica Sanden, Nini Sissener
PeerJ 2016
2016

Insect larvae meal as an alternative source of nutrients in the diet of Atlantic salmon (Salmo salar) postsmolt

Erik-Jan Lock, Tarique Arsiwalla, Rune Waagbø
Aquaculture Nutrition 22 p. 1202-1213
2016

Antioxidant nutrition in Atlantic salmon (Salmo salar) parr and post-smolt, fed diets with high inclusion of plant ingredients and graded levels of micronutrients and selected amino acids

Kristin Hamre, Nini Sissener, Erik-Jan Lock, Pål Asgeir Olsvik, Marit Espe, Bente Elisabeth Torstensen, Joana da Silva, J. Johannesen, Rune Waagbø, Gro Ingunn Hemre
PeerJ 8
2015

Intake of farmed Atlantic salmon fed soybean oil increases hepatic levels of arachidonic acid-derived oxylipins and ceramides in mice

Lisa Kolden Midtbø, Alison G. Borkowska, Annette Bernhard, Alexander Rønnevik, Erik-Jan Lock, Michael L. Fitzgerald, Bente Elisabeth Torstensen, Bjørn Liaset, Trond Brattelid, Theresa L. Pedersen, John W. Newman, Karsten Kristiansen, Lise Madsen
Journal of Nutritional Biochemistry 26 p. 585-595
2014

Dietary linoleic acid elevates the endocannabinoids 2-AG and anandamide and promotes weight gain in mice fed a low fat diet

Anita Røyneberg Alvheim, Bente Elisabeth Torstensen, Yu Hong Lin, Haldis Haukås Lillefosse, Erik-Jan Lock, Lise Madsen, Livar Frøyland, Joseph R. Hibbeln, Marian Kjellevold Malde
Lipids 49 p. 59-69
2013

Dietary eicosapentaenoic acid supplementation accentuates hepatic triglyceride accumulation in mice with impaired fatty acid oxidation capacity

Zhen-yu Du, Tao Ma, Bjørn Liaset, Alison H. Keenan, Pedro Araujo, Erik-Jan Lock, Laurent Demizieux, Pascal Degrace, Livar Frøyland, Karsten Kristiansen, Lise Madsen
Biochimica et Biophysica Acta - Molecular and Cell Biology of Lipids 1831 p. 291-299
2013

Dietary linoleic acid elevates endogenous 2-arachidonoylglycerol and anandamide in Atlantic salmon (Salmo salar L.) and mice, and induces weight gain and inflammation in mice

Anita Røyneberg Alvheim, Bente Elisabeth Torstensen, Yu Hong Lin, Haldis Haukås Lillefosse, Erik-Jan Lock, Lise Madsen, Joseph R. Hibbeln, Marian Kjellevold Malde
British Journal of Nutrition 109 p. 1508-1517
2013

Establishing an upper level of intake for vitamin A in Atlantic salmon (Salmo salar L.) postsmolts

Robin Ørnsrud, Erik-Jan Lock, Rune Waagbø, Christel Krossøy, Per Gunnar Fjelldal
Aquaculture Nutrition 19 p. 651-664
2013

Toxicokinetic model assessment on the dechlorination of dietary toxaphene CHB-62 into CHB-44 in Atlantic salmon (Salmo salar L.)

Marc Berntssen, Erik-Jan Lock, Marco J. Zeilmaker, Jan C.H. van Eijkeren
30 p. 1581-1589
2012

Dietary phosphorus does not reduce the risk for spinal deformities in a model of adjuvant-induced inflammation in Atlantic salmon (Salmo salar) postsmolts

Laura Gil Martens, Per Gunnar Fjelldal, Erik-Jan Lock, Anna Sofie Troedsson Wargelius, Heidrun Inger Wergeland, P. Eckhard Witten, Tom Johnny Hansen, Rune Waagbø, Robin Ørnsrud
Aquaculture Nutrition 18 p. 12-20
2012

Vertebral deformities in farmed Atlantic salmon (Salmo salar L.) - etiology and pathology

Per Gunnar Fjelldal, Tom Johnny Hansen, Olav Breck, Robin Ørnsrud, Erik-Jan Lock, Rune Waagbø, Anna Wargelius, Paul Eckhard Witten
Journal of Applied Ichthyology 28 p. 433-440
2012

Elasmoid scales of fishes as model in biomedical bone research

J. R. Metz, E de Vrieze, Erik-Jan Lock, I. E. Schulten, G. Flik
Journal of Applied Ichthyology 28 p. 382-387
2012

Dechlorination of the dietary nona-chlorinated toxaphene congeners 62 and 50 into the octa-chlorinated toxaphene congeners 44 and 40 in zebrafish (Danio rerio) and Atlantic salmon (Salmo salar)

Marc Berntssen, Anne-Katrine L. Haldorsen, Lene Hop Johannessen, Erik-Jan Lock
Aquatic Toxicology 112 p. 54-61
2012

Continuous light induces bone resorption and affects vertebral morphology in Atlantic salmon (Salmo salar L.) fed a phosphorous deficient diet

Per Gunnar Fjelldal, Erik-Jan Lock, Tom Johnny Hansen, Rune Waagbø, Anna Wargelius, Laura Gil Martens, Adel El-Mowafi, Robin Ørnsrud
Aquaculture Nutrition 18 p. 610-619
2012

Metabolic impacts of high dietary exposure to persistent organic pollutants in mice

Mohammad Madani Ibrahim, Even Fjære, Erik-Jan Lock, Livar Frøyland, Niels Jessen, Sten Lund, Hubert Vidalf, Jérôme Ruzzin
Toxicology Letters 215 p. 8-15
2011

Nutritional regulation of bile acid metabolism is associated with improved pathological characteristics of the metabolic syndrome

Bjørn Liaset, Qin Hao, Henry Jørgensen, Philip Hallenborg, Zhen-yu Du, Tao Ma, Hanns-Ulrich Marschall, Mogens Kruhøffer, Ruiqiang Li, Quibin Li, Christian Clement Yde, Gabriel Cabrera Criales, Hanne C. Bertram, Gunnar Mellgren, Erik Snorre Øfjord, Erik-Jan Lock, Marit Espe, Livar Frøyland, Lise Madsen, Karsten Kristiansen
Journal of Biological Chemistry 286 p. 28382-28395
2011

Dietary decontaminated fish oil has no negative impact on fish performance, flesh quality or production-related diseases in Atlantic salmon (Salmo salar)

Erik-Jan Lock, Per Gunnar Fjelldal, Bente Elisabeth Torstensen, Marit Bjørnevik, Olav Breck, J. Johansen, P. Reynolds, Trygve Sigholt, Nanne Joerum, Jan Vidar Jakobsen, Kari Ruohonen, Rune Waagbø, Marc Berntssen
Aquaculture Nutrition 17 p. E760-E772
2011

Depot-Dependent Effects of Adipose Tissue Explants on Co-Cultured Hepatocytes

Zhen-yu Du, Tao Ma, Erik-Jan Lock, Qin Hao, Karsten Kristiansen, Livar Frøyland, Lise Madsen
PLoS ONE 6
2011

Chronic Consumption of Farmed Salmon Containing Persistent Organic Pollutants Causes Insulin Resistance and Obesity in Mice

Mohammad Madani Ibrahim, Even Fjære, Erik-Jan Lock, Danielle Naville, Heidi Amlund, Emmanuelle Meugnier, Brigitte Le Battistoni, Livar Frøyland, Lise Madsen, Niels Jessen, Sten Lund, Hubert Vidal, Jérôme Ruzzin
PLoS ONE 6 p. e25170
2010

Vitamin K-dependent gamma-glutamylcarboxylase in Atlantic salmon (Salmo salar L.)

Christel Krossøy, ERIK-JAN LOCK, ROBIN ØRNSRUD
36 p. 627-635
2010

Reducing persistent organic pollutants while maintaining long chain omega-3 fatty acid in farmed Atlantic salmon using decontaminated fish oils for an entire production cycle

MARC BERNTSSEN, Pål Asgeir Olsvik, BENTE ELISABETH TORSTENSEN, Kåre Julshamn, Torbjørn Midtun, Anders Goksøyr, J Johansen, T. Sigholt, N Joerum, JV Jakobsen, Anne Katrine Lundebye-Haldorsen, ERIK-JAN LOCK
Chemosphere 81 p. 242-252
2010

Roles of lipid-soluble vitamins during ontogeny of marine fish larvae

Kristin Hamre, Christel Krossøy, ERIK-JAN LOCK, MARI MOREN
Aquaculture Research 41 p. 745-750
2010

The significance of vitamin D for fish: a review

ERIK-JAN LOCK, Rune Waagbø, Sjoerd E. Wendelaar Bonga, Gert Flik
Aquaculture Nutrition 16 p. 100-116
2010

Tolerance of Atlantic Salmon (Salmo Salar) to dietborne endosulfan assessed by haematology, biochemistry, histology and growth

Anne Katrine Lundebye-Haldorsen, ERIK-JAN LOCK, David Boyle, Kari Ruohonen, MARC BERNTSSEN
Aquaculture Nutrition 16 p. 549-558
2010

Dietary fatty acids and inflammation in the vertebral column of Atlantic salmon, Salmo salar L., smolts: a possible link to spinal deformities

Laura Gil Martens, ERIK-JAN LOCK, Per Gunnar Fjelldal, Anna Wargelius, HERNANDEZ PEDRO W ARAUJO, BENTE ELISABETH TORSTENSEN, P. Eckhard Witten, Tom Hansen, Rune Waagbø, ROBIN ØRNSRUD
Journal of Fish Diseases 33 p. 957-972
2010

Persistent Organic Pollutant Exposure Leads to Insulin Resistance Syndrome

Jérôme Ruzzin, Rasmus Petersen, Emmanuelle Meugnier, Lise Madsen, ERIK-JAN LOCK, Haldis Haukås Lillefosse, Tao Ma, Sandra Pesenti, Si Brask Sonne, Troels Torben Marstrand, Marian Kjellevold Malde, ZHEN-YU DU, Carine Chavey, Lluis Fajas, Anne Katrine Lundebye-Haldorsen, Christian Lehn Brand, Hubert Vidal, Karsten Kristiansen, Livar Frøyland
Environmental Health Perspectives 118 p. 465-471
2009

Dietary menadione nicotinamide bisulphite (vitamin K-3) does not affect growth or bone health in first-feeding fry of Atlantic salmon (Salmo salar L.)

Christel Krossøy, Rune Waagbø, Per Gunnar Fjelldal, Anna Wargelius, ERIK-JAN LOCK, Ingvild Eide Graff, ROBIN ØRNSRUD
Aquaculture Nutrition 15 p. 638-649
2009

Retinoic acid cross-talk with calcitriol activity in Atlantic salmon (Salmo salar)

Robin Ørnsrud, Erik-Jan Lock, Chris Glover, G. Flik
Journal of Endocrinology 202 p. 473-482
2007

The vitamin D receptor and its ligand 1 alpha,25-dihydroxyvitamin D-3 in Atlantic salmon (Salmo salar)

Erik-Jan Lock, Robin Ørnsrud, Lage Aksnes, F.A.Tom Spanings, Rune Waagbø, Gert Flik
Journal of Endocrinology 193 p. 459-471

Poster

2013

Vertebral columns of Atlantic salmon (Salmo salar) show alterations in protein abundance due to variable dietary P level

Eva Veiseth-Kent, Mona Elisabeth Pedersen, Kristin Hollung, Elisabeth Ytteborg, Grete Bæverfjord, Harald Rune Takle, Torbjørn Einar Åsgård, Robin Ørnsrud, Erik-Jan Lock, Sissel Albrektsen
2013

Radiological studies on vertebral deformities in triploid Atlantic salmon (Salmo salar)

Thomas WK Fraser, Tom Johnny Hansen, M. Fleming, Florian Sambraus, Ian Mayer, Jon Egil Skjæraasen, Anna Wargelius, Robin Ørnsrud, Erik-Jan Lock, Per Gunnar Fjelldal
2013

Phosphatase activities in Atlantic salmon (Salmo salar) vertebral bone and scales: our findings from the past years

Erik-Jan Lock, Per Gunnar Fjelldal, Robin Ørnsrud, Sissel Albrektsen, Tom Johnny Hansen, Rune Waagbø
2012

Assessment of protein expression profiles in livers of Atlantic salmon (Salmo salar) exposed to toxaphene-contaminated diets

Josef Daniel Rasinger, Erik-Jan Lock, Anne-Katrine L. Haldorsen
2008

Dietary menadione nicotinamide bisulphite (vitamin K) does not affect growth or bone health in first feeding Atlantic salmon (Salmo salar)

Christel Krossøy, Rune Waagbø, Per Gunnar Fjelldal, Anna Wargelius, Erik-Jan Lock, Ingvild Eide Graff, Robin Ørnsrud
2008

Inflammation as a risk factor for spinal deformities in farmed Atlantic salmon underyearling smolts

Laura Gil Martens, Erik-Jan Lock, Robin Ørnsrud, Per Gunnar Fjelldal, Anna Wargelius, Bente Elisabeth Torstensen, Paul Eckhard Witten, Tom Johnny Hansen, Rune Waagbø
2004

The effect of 1;25-dihydroxyvitamin D3 and 24r,25-dihydroxyvitamin D3 on the activity of osteoblasts on tilapia (Oreochromis mossambicus) scales in primary culture

Erik-Jan Lock, M.H.A.G. Gorrissen, Robin Ørnsrud, S.E. Wendelaar Bonga, G. Flik

Kapitler og bøker

2013

Changes in protein abundance in the vertebral column of Atlantic salmon (Salmo salar) fed variable dietary P levels

Eva Veiseth-Kent, Mona Elisabeth Pedersen, Kristin Hollung, Elisabeth Ytteborg, Grete Bæverfjord, Harald Rune Takle, Torbjørn Einar Åsgård, Robin Ørnsrud, Erik-Jan Lock, Sissel Albrektsen
p. 188-191

Populærvitenskapelige artikler

2014

Økt utnyttelse av forfor fra fiskeavskjær

Sissel Albrektsen, Erik-Jan Lock, Elisabeth Ytteborg
Norsk Fiskeoppdrett p. 42-45

Faglige foredrag

2015

Feeding black soldier fly (Hermetia illucens) a diet containing seaweed introduces valuable nutrients and undesirable elements into the larvae

Irene Biancarosa, Nina Sylvia Liland, Daan Biemans, Christian Guido Bruckner, Heidi Amlund, Bente Elisabeth Torstensen, Rune Waagbø, Erik-Jan Lock
2015

Changes in nutrient and heavy metal composition of black soldier fly larvae Hermetia illucens fed on marine macroalgae

Irene Biancarosa, Nina Sylvia Liland, Daan Biemans, Christian Guido Bruckner, Heidi Amlund, Bente Elisabeth Torstensen, Erik-Jan Lock
2015

Insects as lipid source for Atlantic salmon

Nina Sylvia Liland, Nicola Day, Bente Elisabeth Torstensen, Rune Waagbø, Andre Gilburn, Erik-Jan Lock
2014

Dietary impacts of marine P ingredients from herring byproducts on growth, mineralization and skeletal development in Atlantic salmon (Salmo salar L.) fry

Sissel Albrektsen, Grete Bæverfjord, Erik-Jan Lock, Mona Elisabeth Pedersen, Harald Rune Takle, Robin Ørnsrud, Eva Veiseth-Kent, Rune Waagbø, Elisabeth Ytteborg
2013

Changes in protein abundance in the vertebral column of Atlantic salmon (Salmo salar) fed variable dietary P levels

Eva Veiseth-Kent, Mona Elisabeth Pedersen, Kristin Hollung, Elisabeth Ytteborg, Grete Bæverfjord, Harald Rune Takle, Torbjørn Einar Åsgård, Robin Ørnsrud, Erik-Jan Lock, Sissel Albrektsen
2013

Changes in protein abundance in the vertebral column of Atlantic salmon (Salmo salar) fed variable dietary P levels

Mona Elisabeth Pedersen, Elisabeth Ytteborg, Grete Bæverfjord, Harald Rune Takle, Torbjørn Einar Åsgård, Robin Ørnsrud, Erik-Jan Lock, Sissel Albrektsen
2013

Vertebral columns of Atlantic salmon (Salmo salar) show alterations in protein abundance due to variable dietary P levels

Eva Veiseth-Kent, Mona Elisabeth Pedersen, Kristin Hollung, Elisabeth Ytteborg, Grete Bæverfjord, Harald Rune Takle, Torbjørn Einar Åsgård, Robin Ørnsrud, Erik-Jan Lock, Sissel Albrektsen
2012

Lock Improved phosphorus utilization in Atlantic salmon (Salmo salar L.) by H2SO4 hydrolysis of minerals in fish bones

Sissel Albrektsen, Elisabeth Ytteborg, Grete Bæverfjord, Mona Elisabeth Pedersen, Aleksei Krasnov, Harald Rune Takle, Eva Veiseth-Kent, Rune Waagbø, Robin Ørnsrud, Erik-Jan Lock
2010

Continuous light induces bone resorption and affects vertebral morphology in Atlantic salmon (Salmo salar L.) fed a phosphorous deficient diet

Robin Ørnsrud, Erik-Jan Lock, Tom Johnny Hansen, Rune Waagbø, Anna Wargelius, Laura Gil Martens, Adel El-Mowafi, Per Gunnar Fjelldal
2009

Dietary Fatty Acids and Inflammation in the vertebral column of Atlantic salmon (Salmo salar) smolts: A possible link to spinal deformities

Laura Gil Martens, Erik-Jan Lock, Per Gunnar Fjelldal, Anna Wargelius, Pedro Araujo, Bente Elisabeth Torstensen, Paul Eckhard Witten, Tom Johnny Hansen, Rune Waagbø, Robin Ørnsrud
2008

Establishing an upper level of vitamin A in Atlantic salmon (Salmo salar)

Robin Ørnsrud, Erik-Jan Lock, Per Gunnar Fjelldal, Rune Waagbø
2008

Interference of retinoic acid in the vitamin D endocrine system in Atlantic salmon (Salmo salar)

Erik-Jan Lock, CN Glover, Rune Waagbø, Gert Flik, Robin Ørnsrud
2008

Roles of fat soluble vitamins in bone development and mineral metabolism

Erik-Jan Lock, Christel Krossøy, Rune Waagbø, Kari Nordvik, Sindre Grotmol, Harald Kryvi, Geir Kåre Totland, Gert Flik, Robin Ørnsrud
2006

Fettløselige vitaminers rolle i beinutvikling og mineralmetabolisme

Robin Ørnsrud, Christel Krossøy, Rune Waagbø, Kari Nordvik, Sindre Grotmol, Geir Kåre Totland, Harald Kryvi, Erik-Jan Lock, Gert Flik, S.E. Wendelaar Bonga
2004

Roles of fat soluble vitamins in bone development and mineral metabolism

Robin Ørnsrud, Sindre Grotmol, Harald Kryvi, Kari Nordvik, Geir Kåre Totland, Erik-Jan Lock, Gert Flik, Rune Waagbø

Rapporter og avhandlinger

2015

The risk of development of antimicrobial resistance with the use of coccidiostats in poultry diets. Opinion of the Panel on Animal Feed of the Norwegian Scientific Committee for Food Safety

Live Lingaas Nesse, Anne Marie Bakke, Trine Eggen, Kristian Hoel, Magne Kaldhusdal, Einar Ringø, Siamak Pour Yazdankhah, Erik-Jan Lock, Rolf Erik Olsen, Robin Ørnsrud, Åshild Krogdahl
2014

Økt utnyttelse av næringsstoffer fra marint restråstoff

Sissel Albrektsen, Erik-Jan Lock, Grete Bæverfjord, Mona Elisabeth Pedersen, Harald Rune Takle, Robin Ørnsrud, Eva Veiseth-Kent, Rune Waagbø, Elisabeth Ytteborg
2014

Utnyttelse av P fra sildeavskjær som alternativ P kilde i fôr til laksesmolt (Salmo salar L.)

Sissel Albrektsen, Erik-Jan Lock, Grete Bæverfjord, Mona Elisabeth Pedersen, Aleksei Krasnov, Harald Rune Takle, Eva Veiseth-Kent, Robin Ørnsrud, Rune Waagbø, Elisabeth Ytteborg
2014

Nye marine ingredienser fra sildeavskjær som P ingrediens i fôr til lakseyngel (Salmo salar L.)

Sissel Albrektsen, Grete Bæverfjord, Erik-Jan Lock, Mona Elisabeth Pedersen, Harald Rune Takle, Robin Ørnsrud, Eva Veiseth-Kent, Rune Waagbø, Elisabeth Ytteborg

Jeg jobber hos Behov og Velferd og har en spesiell interesse i mineral og vitamin ernæring hos fisk. I trend med de endringer i fiskens diet til mer bærekraftige råvarer handler de fleste nåværende prosjekter om behovet for vitaminer og mineraler i laks matet plantebaserte dietter og dietter basert på nye forressurser som alger og insekt mel.



Arbeidsområde
Utvalgte publikasjoner
Prosjekter
Vitenskaplige publikasjoner


Utdanning


Min bakgrunn er i fiske fysiologi og endokrinologi. I PhD arbeid arbeidet jeg med vitamin D endokrinsystemet til Atlantisk Laks hvor han utviklet interesse for hvordan diett og miljø påvirker fiskens helse. Dette har resultert i ulike prosjekter hvor interaksjoner mellom vitamin og mineraler effekt på bein utvikling ble studert. Arbeidet mitt også inkluderer andre fettløselige vitaminer (A og K) og deres forhold til mineralomsetting og beins utvikling. Jeg har etablert flere assays som er brukt til å kvantifisere aktiviteten til enzymer som er viktig for beins utvikling, som ALP, TRAP and vitamin K avhengig-GGCX. Akvakulturindustrien trenger ny fôrresurser for å møtekomme den konstante veksten i industrien. Med byttet fra begrenset marine fiskeingredienser til vegetabilske ingredienser, tilgjengeligheten av mineraler og vitaminer kan bli forandret. Jeg forsker nå på behovet for vitaminer og mineraler til laks matet plantebaserte dietter som er en del av det store EU 7. rammeprogram ARRAINA . Data fra disse studiene vil bli brukt til revurdering av ernæringsbehovet til laks. I andre prosjekter ligger fokus på nye fôrråvarer med prosjekter innenfor insektmel og algemel (som erstatning av fiskemel).


Ørnsrud R, Lock EJ, Waagbø R, Krossøy C, Fjelldal PG. 2013. Establishing an upper level of intake for vitamin A in Atlantic salmon ( Salmo salar L.) post smolts. Aquaculture Nutrition 19: 651-664

Fjelldal PG, Hansen T, Breck O, Ørnsrud R, Lock EJ, Waagbø R, Wargelius A, Witten PE. 2012. Vertebral deformities in farmed Atlantic salmon (Salmo salar L.) – etiology and pathology. Journal of Applied Ichtyology 28: 433-440

Lock EJ, Fjelldal PG, Torstensen BE, Bjørnevik M, Breck O, Johansen J, Reynolds P, Sigholt T, Joerum N, Jakobsen J-V, Ruohonen K, Waagbø R, Berntssen MHG. 2011. Dietary decontaminated fish oil has no negative impact on fish performance, flesh quality or production related diseases in Atlantic salmon ( Salmo salar ). Aquaculture Nutrition 17: e760-e772

Hamre K, Krossøy C, Lock EJ, Moren, M. 2010. Roles of lipid-soluble vitamins during ontogeny of marine fish larvae. Aquaculture Research 41: 745-750

Lock EJ, Waagbø R, Wendelaar Bonga SE, Flik G. 2010. The significance of vitamin D for fish: a review. Aquaculture Nutrition 16: 100-116

Ørnsrud R, Lock EJ, Glover C, Flik G. 2009. Retinoic acid cross-talk with calcitriol activity in Atlantic salmon. ( Salmo salar ). Journal of Endocrinology 202: 473-482

  • 2016


    Per Gunnar Fjelldal, Tom Johnny Hansen, Erik-Jan Lock, Anna Wargelius, Thomas Fraser, Florian Sambraus, A. El-Mowafi, Sissel Albrektsen, Rune Waagbø, Robin Ørnsrud

    Increased dietary phosphorous prevents vertebral deformities in triploid Atlantic salmon (Salmo salar L.)

    Aquaculture Nutrition; Volum 22.(1) S. 72-90
    • År: 2016
  • 2015


    Lisa Kolden Midtbø, Alison G. Borkowska, Annette Bernhard, Alexander Rønnevik, Erik-Jan Lock, Michael L. Fitzgerald, Bente Elisabeth Torstensen, Bjørn Liaset, Trond Brattelid, Theresa L. Pedersen, John W. Newman, Karsten Kristiansen, Lise Madsen

    Intake of farmed Atlantic salmon fed soybean oil increases hepatic levels of arachidonic acid-derived oxylipins and ceramides in mice

    Journal of Nutritional Biochemistry; Volum 26.(6) S. 585-595
    • År: 2015
  • 2014


    Anita Røyneberg Alvheim, Bente Elisabeth Torstensen, Yu Hong Lin, Haldis Haukås Lillefosse, Erik-Jan Lock, Lise Madsen, Livar Frøyland, Joseph R. Hibbeln, Marian Kjellevold Malde

    Dietary linoleic acid elevates the endocannabinoids 2-AG and anandamide and promotes weight gain in mice fed a low fat diet

    Lipids; Volum 49.(1) S. 59-69
    • År: 2014
  • 2013


    Zhen-yu Du, Tao Ma, Bjørn Liaset, Alison H. Keenan, Pedro Araujo, Erik-Jan Lock, Laurent Demizieux, Pascal Degrace, Livar Frøyland, Karsten Kristiansen, Lise Madsen

    Dietary eicosapentaenoic acid supplementation accentuates hepatic triglyceride accumulation in mice with impaired fatty acid oxidation capacity

    Biochimica et Biophysica Acta - Molecular and Cell Biology of Lipids; Volum 1831.(2) S. 291-299
    • År: 2013

    Anita Røyneberg Alvheim, Bente Elisabeth Torstensen, Yu Hong Lin, Haldis Haukås Lillefosse, Erik-Jan Lock, Lise Madsen, Joseph R. Hibbeln, Marian Kjellevold Malde

    Dietary linoleic acid elevates endogenous 2-arachidonoylglycerol and anandamide in Atlantic salmon (Salmo salar L.) and mice, and induces weight gain and inflammation in mice

    British Journal of Nutrition; Volum 109.(8) S. 1508-1517
    • År: 2013

    Robin Ørnsrud, Erik-Jan Lock, Rune Waagbø, Christel Krossøy, Per Gunnar Fjelldal

    Establishing an upper level of intake for vitamin A in Atlantic salmon (Salmo salar L.) postsmolts

    Aquaculture Nutrition; Volum 19.(5) S. 651-664
    • År: 2013

    Marc Berntssen, Erik-Jan Lock, Marco J. Zeilmaker, Jan C.H. van Eijkeren

    Toxicokinetic model assessment on the dechlorination of dietary toxaphene CHB-62 into CHB-44 in Atlantic salmon (Salmo salar L.)

    Food Additives & Contaminants; Volum 30.(9) S. 1581-1589
    • År: 2013
  • 2012


    Laura Gil Martens, Per Gunnar Fjelldal, Erik-Jan Lock, Anna Sofie Troedsson Wargelius, Heidrun Inger Wergeland, P. Eckhard Witten, Tom Johnny Hansen, Rune Waagbø, Robin Ørnsrud

    Dietary phosphorus does not reduce the risk for spinal deformities in a model of adjuvant-induced inflammation in Atlantic salmon (Salmo salar) postsmolts

    Aquaculture Nutrition; Volum 18.(1) S. 12-20
    • År: 2012

    J. R. Metz, E de Vrieze, Erik-Jan Lock, I. E. Schulten, G. Flik

    Elasmoid scales of fishes as model in biomedical bone research

    Journal of Applied Ichthyology; Volum 28.(3) S. 382-387
    • År: 2012

    Marc Berntssen, Anne-Katrine L. Haldorsen, Lene Hop Johannessen, Erik-Jan Lock

    Dechlorination of the dietary nona-chlorinated toxaphene congeners 62 and 50 into the octa-chlorinated toxaphene congeners 44 and 40 in zebrafish (Danio rerio) and Atlantic salmon (Salmo salar)

    Aquatic Toxicology; Volum 112. S. 54-61
    • År: 2012

    Per Gunnar Fjelldal, Erik-Jan Lock, Tom Johnny Hansen, Rune Waagbø, Anna Wargelius, Laura Gil Martens, Adel El-Mowafi, Robin Ørnsrud

    Continuous light induces bone resorption and affects vertebral morphology in Atlantic salmon (Salmo salar L.) fed a phosphorous deficient diet

    Aquaculture Nutrition; Volum 18.(6) S. 610-619
    • År: 2012

    Mohammad Madani Ibrahim, Even Fjære, Erik-Jan Lock, Livar Frøyland, Niels Jessen, Sten Lund, Hubert Vidalf, Jérôme Ruzzin

    Metabolic impacts of high dietary exposure to persistent organic pollutants in mice

    Toxicology Letters; Volum 215.(1) S. 8-15
    • År: 2012
  • 2011


    Mohammad Madani Ibrahim, Even Fjære, Erik-Jan Lock, Danielle Naville, Heidi Amlund, Emmanuelle Meugnier, Brigitte Le Battistoni, Livar Frøyland, Lise Madsen, Niels Jessen, Sten Lund, Hubert Vidal, Jérôme Ruzzin

    Chronic Consumption of Farmed Salmon Containing Persistent Organic Pollutants Causes Insulin Resistance and Obesity in Mice

    PLoS ONE; Volum 6.(9) S. e25170
    • År: 2011

    Bjørn Liaset, Qin Hao, Henry Jørgensen, Philip Hallenborg, Zhen-yu Du, Tao Ma, Hanns-Ulrich Marschall, Mogens Kruhøffer, Ruiqiang Li, Quibin Li, Christian Clement Yde, Gabriel Cabrera Criales, Hanne C. Bertram, Gunnar Mellgren, Erik Snorre Øfjord, Erik-Jan Lock, Marit Espe, Livar Frøyland, Lise Madsen, Karsten Kristiansen

    Nutritional regulation of bile acid metabolism is associated with improved pathological characteristics of the metabolic syndrome

    Journal of Biological Chemistry; Volum 286.(32) S. 28382-28395
    • År: 2011

    Erik-Jan Lock, Per Gunnar Fjelldal, Bente Elisabeth Torstensen, Marit Bjørnevik, Olav Breck, J. Johansen, P. Reynolds, Trygve Sigholt, Nanne Joerum, Jan Vidar Jakobsen, Kari Ruohonen, Rune Waagbø, Marc Berntssen

    Dietary decontaminated fish oil has no negative impact on fish performance, flesh quality or production-related diseases in Atlantic salmon (Salmo salar)

    Aquaculture Nutrition; Volum 17.(3) S. E760-E772
    • År: 2011

    Zhen-yu Du, Tao Ma, Erik-Jan Lock, Qin Hao, Karsten Kristiansen, Livar Frøyland, Lise Madsen

    Depot-Dependent Effects of Adipose Tissue Explants on Co-Cultured Hepatocytes

    PLoS ONE; Volum 6.(6)
    • År: 2011
  • 2010


    Christel Krossøy, ERIK-JAN LOCK, ROBIN ØRNSRUD

    Vitamin K-dependent gamma-glutamylcarboxylase in Atlantic salmon (Salmo salar L.)

    Fish Physiology & Biochemistry; Volum 36.(3) S. 627-635
    • År: 2010

    MARC BERNTSSEN, Pål Asgeir Olsvik, BENTE ELISABETH TORSTENSEN, Kåre Julshamn, Torbjørn Midtun, Anders Goksøyr, J Johansen, T. Sigholt, N Joerum, JV Jakobsen, Anne Katrine Lundebye-Haldorsen, ERIK-JAN LOCK

    Reducing persistent organic pollutants while maintaining long chain omega-3 fatty acid in farmed Atlantic salmon using decontaminated fish oils for an entire production cycle

    Chemosphere; Volum 81.(2) S. 242-252
    • År: 2010

    Kristin Hamre, Christel Krossøy, ERIK-JAN LOCK, MARI MOREN

    Roles of lipid-soluble vitamins during ontogeny of marine fish larvae

    Aquaculture Research; Volum 41.(5) S. 745-750
    • År: 2010

    Anne Katrine Lundebye-Haldorsen, ERIK-JAN LOCK, David Boyle, Kari Ruohonen, MARC BERNTSSEN

    Tolerance of Atlantic Salmon (Salmo Salar) to dietborne endosulfan assessed by haematology, biochemistry, histology and growth

    Aquaculture Nutrition; Volum 16.(5) S. 549-558
    • År: 2010
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