Blar i Bergen Open Research Archive på forfatter "Thorarensen, Helgi"
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The effect of CO2, total ammonia nitrogen and pH on growth of juvenile lumpfish (Cyclopterus lumpus)
Thorarensen, Helgi; Imsland, Albert; Monroe, Amber Christina (Journal article; Peer reviewed, 2023)The objective of this study was to examine the effects of CO2, total ammonia nitrogen (TAN: nitrogen bound as either NH3 or NH4+) and pH on the growth and survival of juvenile lumpfish in a two-month growth study. The ... -
Effect of rearing temperature on flesh quality in Arctic charr (Salvelinus alpinus)
Imsland, Albert; Ólafsdóttir, Aðalheiður; Árnason, Jón; Gústavsson, Arnþór; Thorarensen, Helgi; Gunnarsson, Snorri (Journal article; Peer reviewed, 2021)Currently, no information is available on the effect of progressively decreasing temperatures on the sensory quality of Arctic charr. The objective of this study was to investigate if and how different and progressively ... -
The effect of temperature on growth performance and aerobic metabolic scope in Arctic charr, Salvelinus alpinus (L.)
Beuvard, Christian; Imsland, Albert; Thorarensen, Helgi (Journal article; Peer reviewed, 2022)In recent years, Arctic char populations in Iceland have declined and the objective of this experiment was to throw further light on these changes by examining the effect of temperature (5, 9, 13, 17, and 21 °C) on the ... -
Impact of environmental factors on the growth and maturation of farmed Arctic charr
Imsland, Albert; Gunnarsson, Snorri; Thorarensen, Helgi (Journal article; Peer reviewed, 2020)Farming of Arctic charr mainly takes place in land‐based farms applying intensive rearing methods with relatively high production costs. Depending on local conditions at each site, it is possible to regulate important ...