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Regulation of nasal heat exchange in reindeer

by Johnsen, Helge Kreützer, Mercer, James B.
Published in Rangifer (1986)

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2

Rhythmic life of the Arctic charr: Adaptations to life at the edge

by Jørgensen, Even Hjalmar, Johnsen, Helge Kreutzer
Published in Marine Genomics (2014)

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3

The combined effects of ambient temperature and enforced sustained swimming activity on body temperatures of arctic charr (Salvelinus alpinus L.)

by Christiansen, Jørgen Schou, Johnsen, Helge Kreützer, Jobling, Malcolm
Published in Journal of Thermal Biology (1991)

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4

Short- and long-term effects of fish density and specific water flow on the welfare of Atlantic cod, Gadus morhua

by Damsgård, Børge, Bjørklund, Frode, Johnsen, Helge K., Toften, Hilde
Published in Aquaculture (2011)

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5

Divergent growth patterns between juveniles of two sympatric Arctic charr morphs with contrasting depth gradient niche preferences

by Knudsen, Rune, Johnsen, Helge, Sæther, Bjørn-Steinar, Siikavuopio, Sten Ivar
Published in Aquatic Ecology (2015)

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6

Acclimation of Atlantic salmon (Salmo salar L.) smolts to `cold' sea water following direct transfer from fresh water

by Arnesen, Arne M, Johnsen, Helge K, Mortensen, Atle, Jobling, Malcolm
Published in Aquaculture (1998)

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7

Contrasts in osmoregulatory capacity of two Arctic charr, Salvelinus alpinus (L.), strains from northern Norway

by Eliassen, Robert A, Johnsen, Helge K, Mayer, Ian, Jobling, Malcolm
Published in Aquaculture (1998)

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8

Arctic charr (Salvelinus alpinus) vitellogenin: development and validation of an enzyme-linked immunosorbent assay

by Johnsen, Helge K, Tveiten, Helge, Willassen, Nils P, Arnesen, Arne M
Published in Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology (1999)

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9

Effects of photoperiod manipulation on development of seawater tolerance in Arctic charr

by Johnsen, Helge K, Eliassen, Robert A, Sæther, Bjørn-Steinar, Larsen, Jørund S
Published in Aquaculture (2000)

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10

An intra ruminal heat exchanger for use in large concious animals

by Mercer, James B., Johnsen, Helge K., Mathiesen, Svein D., Blix, Arnoldus Schytte
Published in Rangifer (1985)

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11

Temperature preference of juvenile Arctic charr originating from different thermal environments

by Siikavuopio, Sten Ivar, Sæther, Bjørn-Steinar, Johnsen, Helge, Evensen, Tor, Knudsen, Rune
Published in Aquatic Ecology (2014)

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12

Effects of photoperiod on sex steroids and gonad maturation in Arctic charr

by Frantzen, Marianne, Arnesen, Arne M., Damsgård, Børge, Tveiten, Helge, Johnsen, Helge K.
Published in Aquaculture (2004)

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13

Development of seawater tolerance and concurrent hormonal changes in fed and fasted Arctic charr at two temperature regimes

by Aas-Hansen, Øyvind, Johnsen, Helge K, Vijayan, Mathilakath M, Jørgensen, Even H
Published in Aquaculture (2003)

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14

Growth hormone and cortisol treatment stimulate seawater tolerance in both anadromous and landlocked Arctic charr

by Ojima, Daisuke, Pettersen, Roger J., Wolkers, Judith, Johnsen, Helge K., Jørgensen, Even H.
Published in Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology (2009)

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15

Resmoltification in wild, anadromous Arctic char ( Salvelinus alpinus ): a survey of osmoregulatory, metabolic, and endocrine changes preceding annual seawater migration

by Aas-Hansen, Øyvind, Vijayan, Mathilakath M, Johnsen, Helge K, Cameron, Colin, Jørgensen, Even H
Published in Canadian Journal of Fisheries and Aquatic Sciences (2005)

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16

Effects of exhaustive swimming and subsequent recuperation on flesh quality in unstressed Atlantic cod (Gadus morhua)

by Svalheim, Ragnhild Aven, Karlsson-Drangsholt, Anders, Olsen, Stein Harris, Johnsen, Helge K., Aas-Hansen, Øyvind
Published in Fisheries Research (2017)

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17

Effects of exhaustive swimming and subsequent recuperation on flesh quality in unstressed Atlantic cod ( Gadus morhua )

by Svalheim, Ragnhild Aven, Karlsson-Drangsholt, Anders, Olsen, Stein Harris, Johnsen, Helge Kreutzer, Aas-Hansen, Øyvind
Published in Fisheries Research (2017)

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18

Evoked potentials in the Atlantic cod following putatively innocuous and putatively noxious electrical stimulation: a minimally invasive approach

by Ludvigsen, Stian, Stenklev, Niels Chr., Johnsen, Helge K., Laukli, Einar, Matre, Dagfinn, Aas-Hansen, Øyvind
Published in Fish Physiology and Biochemistry (2013)

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19

Evoked potentials in the Atlantic cod following putatively innocuous and putatively noxious electrical stimulation: a minimally invasive approach

by Ludvigsen, Stian, Stenklev, Niels C., Johnsen, Helge K., Laukli, Einar, Matre, Dagfinn, Aas-Hansen, Øyvind
Published in Fish Physiology and Biochemistry (2013)

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Evoked potentials in the Atlantic cod following putatively innocuous and putatively noxious electrical stimulation: a minimally invasive approach

by Ludvigsen, Stian, Stenklev, Niels C., Johnsen, Helge K., Laukli, Einar, Matre, Dagfinn, Aas-Hansen, Øyvind
Published in Fish Physiology and Biochemistry (2013)

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