Figure 1

Depth trace over the course of the 24 h monitoring period in (a), and binned depth density histograms of the log transformed median estimated active metabolic rate (AMR_E; mgO₂ kg⁻¹ h⁻¹) for day and night periods in (b) and (c), respectively. In (a), color of the depth trace indicates speed (ms⁻¹), and shaded regions represent night hours. The dive in which the predation event took place is indicated with an arrow.