Blar i forfatter Artikler, rapporter og annet (Norges fiskerihøgskole) "Imsland, Albert"

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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; Tidsskriftartikkel; Peer reviewed, 2023-08-12)
      The objective of this study was to examine the effects of CO<sub>2</sub>, total ammonia nitrogen (TAN: nitrogen bound as either NH<sub>3</sub> or NH<sub>4</sub><sup>+</sup>) and pH on the growth and survival of juvenile lumpfish in a two-month growth study. The results demonstrate the complex interactions of these water quality variables. The specific growth rate (SGR) of the lumpfish was 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; Tidsskriftartikkel; Peer reviewed, 2021-11-06)
      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 survival, growth rate, metabolism, and physiological indices of juvenile Arctic charr (initial mean body mass 4.02 ± 0.8 g). Mortality was 60% at 21 °C while at lower temperatures it ...