Blar i Brage IMR på forfatter "Hansen, Tom"
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Klekking av laks (Salmo salar) i kunstgress
Hansen, Tom (Master thesis, 1984) -
Lys øker vekst hos oppdrettstorsk
Hansen, Tom; Taranger, Geir Lasse (Havforskningsnytt, Working paper, 1995) -
Matre havbruksstasjon 25 år
Torrissen, Ole; Hansen, Tom (Others, 1996) -
Matre havbruksstasjon 30 år : 1971 - 2001
Hansen, Tom (Others, 2001) -
MMP-13 (Matrix MetalloProteinase 13) expression might be an indicator for increased ECM remodeling and early signs of vertebral compression in farmed Atlantic salmon (Salmo salar L.)
Wargelius, Anna; Fjelldal, Per Gunnar; Grini, Ane; Gil-Martens, L.; Kvamme, Bjørn Olav; Hansen, Tom (Journal article; Peer reviewed, 2010-04)Vertebral body compression is a common problem in commercial farming of Atlantic salmon. Although risk factors, such as vaccination and alnutrition, have been identified, the etiology is largely unknown. Histological studies ... -
"Nullårig" smolt må ha vinter i minst seks veker
Hansen, Tom (Havforskningsnytt, Working paper, 1997) -
Oppdrett av steril fisk
Hansen, Tom; Mejdell, Cecilie; Svåsand, Terje; Osland, Arve; Bergh, Øivind; Taranger, Geir Lasse (Rapport fra havforskningen, Working paper, 2007-06) -
Oppdrett av steril fisk
Hansen, Tom; Wargelius, Anna; Taranger, Geir Lasse; Fjelldal, Per Gunnar (Rapport fra Havforskningen;Nr. 18 - 2012, Working paper, 2012-04)I andre land og andre arter er det vanlig å bruke triploidisering og/eller oppdrett av monosexbesetninger (f.eks all female). I noen andre arter er det dessuten vanlig å bruke sterile hybrider til ulike typer formål. ... -
pH adjustment of acid water at Matre Aquaculture Station: Experiences with previous and existing methods
Ulgenes, Yngve; Hansen, Tom; Torrissen, Ole (ICES CM Documents;1984/F:28, Working paper, 1984)The water from Matre River is characterized as very soft, with a total hardness of 1. 5 - 2. 5 mg Ca0/1 and a very low buffer capacity. Acid precipitation results in low pH, values below 5. 0 are recorded every year. ... -
Prospects for future sealing in the North Atlantic : proceedings of the 13th Norwegian-Russian Symposium, Tromsø, 25-26 August 2008
Pike, Daniel; Hansen, Tom; Haug, Tore (IMR/PINRO joint report series, Conference object, 2008-11) -
Prospects for future sealing in the North Atlantic : proceedings of the 13th Norwegian-Russian Symposium, Tromsø, 25-26 August 2008
Pike, Daniel; Hansen, Tom; Haug, Tore (IMR/PINRO joint report series, Conference object, 2008-11) -
Seawater adaptability of two strains of arctic char (Salvelinus alpinus) reared under different light regimes
Stefansson, Sigurd O.; Hansen, Tom; Holm, Jens Christian (ICES CM Documents;1987/F:37, Working paper, 1987)Groups of Arctic char (Salvelinus alpinus) were reared under three experimental light regimes. Two different strains of char were used, one non-migratory from south Norway, the other anadromous from northern Norway. All ... -
Smoltification of Atlantic salmon in different water qualities and subsequent growth in sea water, following distinct transfer strategies from freshwater
Nortvedt, Ragnar; Hansen, Tom; Lunde, Trygve; Skybakmoen, Steinar (ICES CM Documents;1990/F:64, Working paper, 1990)Atlantic salmon parr were kept in four different fresh water qualities for seven months before smoltification, which was characterized by plasma chloride content after sea water challenge tests. Three groups were transferred ... -
Stable isotope marking of otoliths during vaccination: a novel method for mass-marking fish
Warren-Myers, Fletcher; Dempster, Tim; Fjelldal, Per Gunnar; Hansen, Tom; Jensen, Arne J.; Swearer, Stephen E. (Journal article; Peer reviewed, 2014-06-04)Tagging or marking of fishes enables the collection of population-based information for ecological research, yet few techniques enable 100% mark detection success. We tested a new mass-marking technique: otolith marking ... -
Start feeding of salmonids with lake zooplankton
Holm, Jens Christian; Hansen, Tom; Møller, Dag (ICES CM Documents;1982/F:36, Working paper, 1982)Fry and small fingerlings of Atlantic salmon (Salmo salar) and rainbow trout (Salmo gairdneri) were fed with lake zooplankton in small fine-meshed cages. The zooplankton were pumped into cages. Growth rates and food selection ... -
Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.)
Da Silva Gomes, Ana Cristina; Zimmermann, Fabian; Hevrøy, Ernst Morten; Søyland, Marcus; Hansen, Tom; Nilsen, Tom Ole; Rønnestad, Ivar (Others, 2023)Precision feeding aims to provide the correct amount of feed to farmed animals for optimal growth and performance and to avoid feed waste. However, knowledge underlying the meal-to-meal variability in voluntary feed intake ... -
Steril fisk – løsningen på rømmingsproblemet : Sterile fish – the solution to the problem of escapees?
Hansen, Tom; Opstad, Ingegjerd; Haugen, Trine; Fjelldal, Per Gunnar; Taranger, Geir Lasse (Havforskningsnytt, Working paper, 2009)Both the authorities and fish farmers are currently working hard to make it more difficult for fish to escape from cages. However, we know that it will hardly be possible to prevent all escapes. The best way of guaranteeing ... -
Styring av gytetidspunkt hos laks
Taranger, Geir Lasse; Hansen, Tom (Havforskningsnytt, Working paper, 1995) -
Supplementary materials for Loss of Fshr prevents testicular maturation in Atlantic salmon (Salmo salar L.).
Andersson, Eva; Schulz, Rüdiger W; Almeida, Fernanda; Kleppe, Lene; Skaftesmo, Kai Ove; Kjærner-Semb, Erik; Crespo, Diego; Fjelldal, Per Gunnar; Hansen, Tom; Norberg, Birgitta; Edvardsen, Rolf B.; Wargelius, Anna (Others, 2024-01-30)Supplementary materials for "Loss of Fshr prevents testicular maturation in Atlantic salmon (Salmo salar L.)." published in Endocrinology, an Oxford academic journal https://doi.org/10.1210/endocr/bqae013 -
Sustained swimming increases the mineral content and osteocyte density of salmon vertebral bone
Totland, Geir K.; Fjelldal, Per Gunnar; Kryvi, Harald; Løkka, Guro; Wargelius, Anna; Sagstad, Anita; Hansen, Tom; Grotmol, Sindre (Journal article; Peer reviewed, 2011-05-25)This study addresses the effects of increased mechanical load on the vertebral bone of post-smolt Atlantic salmon by forcing them to swim at controlled speeds. The fish swam continuously in four circular tanks for 9 weeks, ...