Fig. 3.
Speed at the end of prey approach (coinciding with Uopen) (A), and corresponding approach duration (tappr) (B). From Cade et al. (2016). In both frames the “lunge number” labels the lunges performed over several successive dives by a given animal: Counting about four lunges per dive in blue whales (Goldbogen et al. 2011), the data for the 27 m individual shown here would characterize 16 lunges carried out over four consecutive dives (see also Potvin et al. 2020). The symbols displayed in both frames correspond to different tag deployments and animals, namely: bw140820-3b (23.6 m; filled circles); bw140806-2 (25.9 m; filled diamond); bw140224-8 (22.7 m; open diamonds); bw140722-2e (25.7 m; filled squares); bw140819-3b (25.1 m; open squares); bw160727-10 (27.4 m; open circles).