Ørjan Hagen
Faggruppeleder
Fakultet for biovitenskap og akvakultur
Ansvarlig eller bidrar inn i undervisningen av følgende emner:
PRA 2005 - Praksis i havbruksnæringen
BI127F - Produksjonsbiologi
AK322F - Fiskemuskelkvalitet
Forskning innen fagområdene:
- Sjømatkvelitet
- Fôr og ernæring hos fisk
- Fôrråstoff til fiskefôr
- Utvikling og vekst av tidlige stadier av fisk
2023
Whole-genome re-sequencing provides key genomic insights in farmed Arctic charr (Salvelinus alpinus) populations of anadromous and landlocked origin from Scandinavia 2023, Evolutionary Applications: Volum 16 s. 797-813 Pappas, Fotis; Kurta, Khrystyna; Vanhala, Tytti; Jeuthe, Henrik; Hagen, Ørjan; Beirao Dos Santos, Jose
2022
Replacement of fishmeal with plant protein in the diets of juvenile lumpfish (Cyclopterus lumpus, L. 1758): Effects on digestive enzymes and microscopic structure of the digestive tract 2022, Aquaculture: Volum 561 Willora Arachchilage, Florence Chandima Perera; Vatsos, Ioannis; Mallioris, Panagiotis; Francesco, Bordignon; Keizer, Sven; Martinez-Llorens, Silvia
2021
Digestive tract morphology and enzyme activities of juvenile diploid and triploid Atlantic salmon (Salmo salar) fed fishmealbased diets with or without fish protein hydrolysates 2021, PLOS ONE: Volum 16 Martinez-Llorens, Silvia; Peruzzi, Stefano; Falk-Petersen, Inger Britt; Godoy-Olmos, Sergio; Ulleberg, Lars Olav; Tomas-Vidal, Ana
2020
The potential of plant ingredients in diets of juvenile lumpfush (Cyclopterus lumpus) 2020, Nord universitet: Willora Arachchilage, Florence Chandima Perera; Hagen, Ørjan; Sørensen, Mette
Growth performance, fast muscle development and chemical composition of juvenile lumpfish (Cyclopterus lumpus) fed diets incorporating soy and pea protein concentrates 2020, Aquaculture Reports: Volum 17 Willora Arachchilage, Florence Chandima Perera; Nadanasabesan, Nimalan; Knutsen, Helene Rønquist; Liu, Cui; Sørensen, Mette; Hagen, Ørjan
Transcriptome sequencing and histology reveal dosage compensation in the liver of triploid pre-smolt Atlantic salmon 2020, Scientific Reports: Volum 10 Odei, Derrick Kwame; Hagen, Ørjan; Peruzzi, Stefano; Falk-Petersen, Inger-Britt; Fernandes, Jorge Manuel de Oliveira
Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus): Effects on growth performance, chemical and fatty acid composition 2020, Aquaculture Reports: Volum 19 Willora Arachchilage, Florence Chandima Perera; Grønevik, Bjørn Frode; Liu, Cui; Palihawadana, Anjana Mahesh; Sørensen, Mette; Hagen, Ørjan
2019
Muscle growth and changes in chemical composition of spotted wolffish juveniles (Anarhichas minor) fed diets with and without microalgae (Scenedesmus obliquus) 2019, Aquaculture Reports: Volum 13 s. 1-9 Knutsen, Helene Rønquist; Ottesen, Oddvar Harald; Palihawadana, Anjana Mahesh; Sandaa, Willy; Sørensen, Mette; Hagen, Ørjan
The importance of exercise: Increased water velocity improves growth of Atlantic salmon in closed cages. 2019, Aquaculture: Volum 501 s. 537-546 Nilsen, Arve; Hagen, Ørjan; Johnsen, Chris André; Prytz, Halvor; Zhou, Bingfei; Nielsen, Kristoffer Vale
Fish welfare, fast muscle cellularity, fatty acid and body-composition of juvenile spotted wolffish (Anarhichas minor) fed a combination of plant proteins and microalgae (Nannochloropsis oceanica) 2019, Aquaculture: Volum 506 s. 212-223 Knutsen, Helene Rønquist; Johnsen, Ingeborg Helene; Keizer, Sven; Sørensen, Mette; Roques, Jonathan AC; Hedén, Ida
2018
Growth and development of skeletal anomalies in diploid and triploid Atlantic salmon (Salmo salar) fed phosphorus-rich diets with fish meal and hydrolyzed fish protein 2018, PLOS ONE: Volum 13 Peruzzi, Stefano; Puvanendran, Velmurugu; Riesen, Guido; Ripman Seim, Rudi; Hagen, Ørjan; Martinez-Llorens, Silvia
2017
Muscle growth of triploid Atlantic cod juveniles (Gadus morhua) 2017, Aquaculture Research: Volum 48 s. 259-269 Vargas, Cecilia Campos; Peruzzi, Stefano; Palihawadana, Anjana; Ottesen, Oddvar; Hagen, Ørjan
2016
Growth and gut morphology of diploid and triploid juvenile Atlantic cod (Gadus morhua) 2016, Aquaculture Research: Volum 47 s. 1459-1471 Vargas, Cecilia; Hagen, Ørjan; Solberg, Christel; Jobling, Malcolm; Peruzzi, Stefano
2015
Gut morphology of diploid and triploid Atlantic salmon (Salmo salar L.) 2015, Aquaculture International: Volum 23 s. 1105-1108 Peruzzi, Stefano; Hagen, Ørjan; Jobling, Malcolm
Growth and muscle cellularity of diploid and triploid Atlantic cod (Gadus morhua Linnaeus, 1758) larvae 2015, Journal of Applied Ichthyology: Volum 31 s. 687-694 Vargas, Cecilia; Peruzzi, Stefano; Hagen, Ørjan
2013
Seasonal changes in muscle structure and flesh quality of 0+ and 1+ Atlantic salmon (Salmo salar L.): impact of feeding regime and possible roles of ghrelin 2013, Aquaculture Nutrition: Volum 19 s. 15-34 Johnsen, Chris André; Hagen, Ørjan; Solberg, Christel; Björnsson, Björn Thrandur; Jönsson, Elisabeth; Johansen, Sten Johan Sverre
2012
Production of sterile Atlantic cod: A way to satisfy industrial and environmental criteria? Cultivating Diversity and Success - Proceedings of Contributed Papers - AAC Special Publication No 20 2012, s. 38-40 Peruzzi, Stefano; Falk-Petersen, Inger-Britt; Lein, Ingrid; Puvanendran, Velmurugu; Hagen, Ørjan; Jobling, Malcolm
2011
Effects of feed, feeding regime and growth rate on flesh quality, connective plasma hormones in farmed Atlantic salmon (Salmo salar L.) 2011, Aquaculture: Volum 318 s. 343-354 Johnsen, Chris André; Hagen, Ørjan; Adler, Michael; Jönsson, Elisabeth; Kling, Peter; Bickerdike, Ralph
Flesh quality and growth characteristics of farmed Atlantic salmon (Salmo salar L.) in relation to feed, feeding, smolt type and season 2011, Johnsen, Chris André; Solberg, Christel; Hagen, Ørjan; Bendiksen, Eldar Åsgard
Long-term effects of high-energy, low-fishmeal feeds on growth and flesh characteristics of Atlantic salmon (Salmo salar L.) 2011, Aquaculture: Volum 312 s. 109-116 Johnsen, Chris Andre; Hagen, Ørjan; Bendiksen, Eldar Å.
2009
Expression of growth-related genes in muscle during fasting and refeeding of juvenile Atlantic halibut, Hippoglossus hippoglossus L 2009, Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology: Volum 152 s. 47-53 Hagen, Ørjan; Fernandes, Jorge; Solberg, Christel; Johnston, Ian
2008
Selection of suitable reference genes for real-time PCR studies of Atlantic halibut development 2008, Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology: Volum 150 s. 23-32 Fernandes, Jorge; Mommens, Maren; Hagen, Ørjan; Babiak, Igor; Solberg, Christel
Myotube production in fast myotomal muscle is switched-off at shorter body lengths in male than female Atlantic halibut Hippoglossus hippoglossus (L.) resulting in a lower final fibre number 2008, Journal of Fish Biology: Volum 73 s. 139-152 Hagen, Ørjan; Vieira, Vera; Solberg, Christel; Johnston, Ian A.
Activity of aspargate (cathepsin D), cysteine proteases (cathepsins B, B+L, and H), and matrix metallopeptidase (collagenase) and their influence on protein and water-holding capacity of muscle in commercially farmed Atlantic halibut (Hippoglossus hippoglossus L.) 2008, Journal of Agricultural and Food Chemistry: Volum 56 s. 5953-5959 Hagen, Ørjan; Solberg, Christel; Johnston, Ian
2007
Biochemical and Structural factors contributing to seasonalvariation in the texture of farmed Atlantic halibut (Hippoglossus hippoglossus L.) Flesh 2007, Journal of Agricultural and Food Chemistry: Volum 55 s. 5803-5808 Hagen, Ørjan; Solberg, Christel; Sirnes, Ellen; Johnston, Ian A.
2006
Sexual dimorphism of fast muscle fibre recruitment in farmed Atlantic halibut (Hippoglossos hippoglossus L.) 2006, Aquaculture: Volum 261 s. 1222-1229 Hagen, Ørjan; Solberg, Christel; Johnston, Ian A.
2022
Start-feeding of wolffish larvea using different level of shrimp and squid as chemo-attractants 2022, Khiyan, Sodiya; Hinchcliffe, James; Bergmann, Elisabeth Jönsson; Hagen, Ørjan
2021
Potential of plant protein ingredients in the diets of juvnile lumpfish (Cyclopterus lumpus) 2021, Willora Arachchilage, Florence Chandima Perera; Sørensen, Mette; Hagen, Ørjan
2019
The effect of total replacement of the fish oil with rapeseed oil on growth, body composition and gut health of juvenile lumpfish 2019, Willora Arachchilage, Florence Chandima Perera; Hagen, Ørjan; Sørensen, Mette
The potential of plant protein ingredients in diets for juvenile lumpfish 2019, Willora Arachchilage, Florence Chandima Perera; Hagen, Ørjan; Sørensen, Mette
The potential of plant ingredients in diets for juvenile lumpfish 2019, Perera Willora , Florence ; Sørensen, Mette; Hagen, Ørjan
LIVER TRANSCRIPTOME OF JUVENILE DIPLOID AND TRIPLOID
ATLANTIC SALMON (SALMO SALAR L.) 2019, Odei, Derrick Kwame; Peruzzi, Stefano; Hagen, Ørjan; Fernandes, Jorge Manuel de Oliveira
2018
Atlantic salmon in closed containment systems (CCS) 2018, Nilsen, Arve; Biering, Eirik; Nielsen, Kristoffer Vale; Bergheim, Asbjørn; Bjørnevik, Marit; Hagen, Ørjan
2017
Growth of diploid and triploid Atlantic salmon (Salmo salar) fed a standard diet and an experimental diet containing high proportions of hydrolysed proteins. 2017, Peruzzi, Stefano; Puvanendran, Velmurugu; Hagen, Ørjan; Kwame Odei, D; Riesen, Guido; Ripman Seim, Rudi
Hagen, Ø., Kwame Odei, D., Riesen, G., Ripman Seim, R., Fernandes, J.M.O. and Jobling M. (2017). Effects of triploidization on digestive enzyme activities and histology of Atlantic salmon (Salmo salar) fed two different diets. 2017, Godoy-Olmos, S; Martinez-Llorens, Silvia; Falk-Petersen, Inger-Britt; Ulleberg, Lars-Olav; Estruch-Cucarella, G; Tomás-Vidal, A
Differences in gut transcriptome profiles between diploid and triploid Atlantic salmon (Salmo salar). 2017, Kwame Odei, D; Fernandes, Jorge; Hagen, Ørjan; Peruzzi, Stefano; Puvanendran, Velmurugu; Riesen, Guido
Microalgae and terrestrial ingredients in Feed for Spotted Wolffish
2017, Ulset, A.K; Johnsen, I.H.; Knutsen, Helene Rønquist; Ottesen, O.H; Sørensen, Mette; Vatsos, Ioannis
Dietary effects on gut transcriptome of diploid and triploid Atlantic salmon Salmo salar 2017, Odei, Derrick; Fernandes, Jorge Manuel de Oliveria; Hagen, Ørjan; Peruzzi, Stefano; Puvanendran, Velmurugu; Riesen, Guido
GROWTH OF JUVENILE DIPLOID AND TRIPLOID SALMON (Salmo salar) FED A STANDARD DIET AND AN EXPERIMENTAL DIET CONTAINING HIGH PROPORTIONS OF HYDROLISED PROTEINS. 2017, Puvanendran, Velmurugu; Peruzzi, Stefano; Falk-Petersen, Inger-Britt; Ulleberg, Lars-Olav; Tonning, fride; Hagen, Ørjan
The effect of total replacement of the fish oil with rapeseed oil on growth, body composition and gut health of juvenile lumpfish 2017, Perera Willora , Florence ; Sørensen, Mette; Hagen, Ørjan
2016
Swimming speed affects growth in Atlantic salmon in closed cage. 2016, Bjørnevik, Marit; Zhou, Bingfei; Hagen, Ørjan; Johnsen, Chris André; Karlsen, Elisabeth; Næss, Anders
Microalgae as an alternative feed ingredient for the spotted wolffish in aquaculture 2016, Knutsen, Helene Rønquist; Sandaa, Willy; Ottesen, Oddvar Harald; Sørensen, Mette; Hagen, Ørjan
2014
Does ploidy affect gut morphology of farmed fish? Evidence from Atlantic cod (Gadus morhua) and Atlantic salmon (Salmo salar) 2014, Peruzzi, Stefano; Hagen, Ørjan; Vargas, Cecilia; Falk-Petersen, Inger-Britt; Jobling, Malcolm
PERFORMANCE OF DIPLOID AND TRIPLOID ATLANTIC COD (Gadus morhua): A COMPARATIVE STUDY 2014, Hagen, Ørjan; Vargas, Cecilia; Solberg, Christel; Peruzzi, Stefano
2013
Muscle growth of triploid Atlantic cod (Gadus morhua)juveniles 2013, Olsen, Cecilia; Peruzzi, Stefano; Ottesen, Oddvar; Solberg, Christel; Hagen, Ørjan
EFFECTS OF TRIPLOIDIZATION ON GROWTH AND GUT MORPHOLOGY OF ATLANTIC COD (Gadus morhua) JUVENILES 2013, Olsen, Cecilia; Hagen, Ørjan; Solberg, Christel; Peruzzi, Stefano
Muscle growth of triploid Atlantic cod larvae 2013, Olsen, Cecilia; Hagen, Ørjan; Peruzzi, Stefano; Solberg, Christel
Performance of juvenile triploid cod – a comparative study 2013, Olsen, Cecilia; Hagen, Ørjan; Peruzzi, Stefano; Solberg, Christel
2012
Effects of feed, feeding regime and growth rate on flesh quality in farmed Atlantic salmon: function of fast-muscle collagen cross-links and plasma hormones 2012, Johnsen, Chris André; Hagen, Ørjan; Adler, Michael; Jönsson, Elisabeth; Kling, Peter; Bickerdike, Ralph
2011
Production of sterile Atlantic cod: A way to satisfy industrial and environmental criteria? 2011, Peruzzi, Stefano; Falk-Petersen, Inger-Britt; Lein, Ingrid; Hagen, Ørjan; Jobling, Malcolm
Quality changes during frozen storage of farmed Atlantic salmon (Salmo salar L.) 2011, Palihawadana, Anjana; Hagen, Ørjan; Solberg, Christel; Bjørnevik, Marit
Muscle development and growth of juvenile Atlantic cod (Gadus morhua) fed marine micro alga as an alternative protein source 2011, Bajgai, Biswas; Hagen, Ørjan; Huntley, Mark; Viswanath, Kiron
Effects of feed, feeding regime and growth rate on flesh quality, collagen cross-links and plasma hormones in farmed Atlantic salmon 2011, Johnsen, Chris André; Hagen, Ørjan; Adler, Michael; Jönsson, Elisabeth; Kling, Peter; Bickerdike, Ralph
Firmer fillet texture with fasting of Atlantic cod (Gadus morhua L.); A modification of the connective tissue matrix 2011, Hagen, Ørjan; Solberg, Christel
Quality changes during frozen storage of farmed Atlantic salmon (Salmo salar L.) 2011, Palihawadana, Anjana; Hagen, Ørjan; Bjørnevik, Marit; Solberg, Christel
An investigation of the biochemical mechanisms behind the loss of texture during ice storage of Atlantic cod (Gadus morhua L.) 2011, Hagen, Ørjan; Florence, Perera; Solberg, Christel
2010
Fast i fisken med hydroksyprolin 2010, Albrektsen, Sissel; Sirnes, Ellen; Aksnes, Anders; Hagen, Ørjan
Impacts of dietary hydroxyproline on growth, muscle firmness, collagen avd PYD cross-links formation in Atlantic salmon (Salmo salar) 2010, Albrektsen, Sissel; Sirnes, Ellen; Aksnes, Anders; Hagen, Ørjan
Impacts of dietary hydroxyproline on growth, muscle firmness, collagen avd PYD cross-links formation in Atlantic salmon (Salmo salar) 2010, Albrektsen, Sissel; Sirnes, Ellen; Aksnes, Anders; Hagen, Ørjan