Metabolic rate of Arctic charr eggs depends on their parentage

  title={Metabolic rate of Arctic charr eggs depends on their parentage},
  author={Susanna Pakkasmaa and O P Penttinen and Jorma Piironen},
  journal={Journal of Comparative Physiology B},
The metabolic rate (specific heat output) of individual eyed-stage eggs of Arctic charr Salvelinus alpinus (Linnaeus, 1758) originating from different families was measured with direct microcalorimetry. Metabolic rates varied between 2.3–7.9 μW ind−1 and 0.06–0.22 μW mg−1. Absolute heat output was unrelated to egg size, but size-scaled or specific heat output was negatively correlated with egg size, measured as diameter, dry mass or fresh mass. Metabolic rates varied significantly between… CONTINUE READING