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Oxygen consumption of burbot, Lota lota (L.), fed different rations of vendace, Coregonus albula L.
Author(s) -
Pääkkönen J. P. J.,
Lyytikäinen T.
Publication year - 2000
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1046/j.1439-0426.2000.00251.x
Subject(s) - biology , oxygen , meal , zoology , specific dynamic action , fish meal , fishery , food science , fish <actinopterygii> , chemistry , organic chemistry
Summary The oxygen consumption of adult burbot, Lota lota (L.), was examined to determine the effects of fasting and meal ration on oxygen consumption rates. The temperature (2.1 °C) was selected to represent ambient conditions for burbot in winter. The average pre‐feeding oxygen consumption rate was 29.5 mg kg −1 h −1 . Feeding affected the oxygen consumption rates since the apparent heat increment correlated significantly with the meal ration. However, the meal ration (i.e. vendace, Coregonus albula L.) did not affect the proportion of the ingested meal energy used in the apparent heat increment. When the meal ration was increased, peak oxygen consumption ranged from 1.2 to 2.2 times higher than the fasting level. Observed low oxygen consumption values suggest that the metabolic processes of burbot are strongly reduced in low temperatures.