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. 2018 Feb 21;4(2):eaaq0800. doi: 10.1126/sciadv.aaq0800

Fig. 2. Cardiac and metabolic indexes of recovery after instrumentation in lungfish, L. paradoxa, at 25°C.

Fig. 2

(A) Mean heart rate calculated from instantaneous electrocardiogram (ECG) recordings from eight lungfish 6 hours after implantation of electrodes and then every 24 hours for 72 hours. (B) Oxygen uptake from air for eight lungfish after 6, 24, 48, and 72 hours after surgical procedures. (C) A tachogram plot of 8192 consecutive RRi from a single L. paradoxa (196 g) 6 and 24 hours after surgery. (D) PSD derived from RRi collected from eight fish 6 hours after implantation of electrodes and then every 24 hours for 72 hours. Data in (A), (B), and (D) are plotted as means ± SEM. Different letters denote significant differences between mean values (ANOVA with Tukey’s post hoc test, P < 0.05).