Metabolic prioritizations of Polar cod (Boreogadus saida) at ambient and elevated water temperatures ...

• Main Authors: Kunz, Kristina Lore, Pörtner, Hans-Otto, Knust, Rainer, Mark, Felix Christopher
• Format: Dataset
• Language: English
• Published: PANGAEA 2018
• Subjects: Experimental treatment; Temperature, water; Time in days; Wet mass; Length, total; Ratio, food consumption per treatment; Metabolic rate of oxygen, standard; Metabolic rate of oxygen, maximum; Aerobic scope, oxygen; Speed, swimming, gait transition; Speed, swimming, critical; Swimming efficiency, maximum; Burst counts, maximum; Specific dynamic action, duration; Specific dynamic action, oxygen, magnitude; Boreogadus saida; polar cod
• Online Access: https://dx.doi.org/10.1594/pangaea.889161; https://doi.pangaea.de/10.1594/PANGAEA.889161

Two groups (n = 8, n = 5) of Polar cod (Boreogadus saida) were acclimated to both 0 and 6°C. The smaller groups were used to investigate specific dynamic action (SDA) (treatment "digestion"). Each fish of the larger groups was used for exercise tests in an unfed and fed state (treatment "exercise" and "exercise & digestion", respectively) at their respective acclimation temperatures as well as in a fed state acutely exposed to an intermediate temperature (3°C). SDA measurements lasted for 18 and 9 days at 0 and 6°C, identical to the food-deprivation period of B. saida in the exercise approach. Feeding was conducted in the common tank. Accordingly, daily rations reflect the mean food consumption per treatment. Each fish was allowed to feed for at least 2h before the start of the experiments.The acclimation time refers to the first day of the respective experiment. The SDA response is characterized by the maximum metabolic rate (MMR) evoked by digestion (defined as second record of oxygen consumption ṀO₂) ...