Fig. 4 | Scientific Reports

Fig. 4

From: Long-term monitoring of Ziphius cavirostris behavior using 3D tracking from fixed hydrophone arrays off Southern California

Fig. 4

(a) Tracked whales by site. Tracks are colored by normalized track time, with the start of the track in purple and the end of the track in light blue. Square markers represent 4-hydrophone arrays, and circle markers represent single hydrophones. Black markers are used at sites with one deployment period and yellow markers are used at sites with multiple deployments, delineating the position of the first deployment. Bathymetric contour lines are every 100 m. (b) Densities of tracked whales per site shown using 10 m by 10 m grid squares colored by the number of tracked whales within the squares. (c) Probabilities of tracking an echolocating whale due to hydrophone array geometry based on Monte-Carlo simulation, normalized between 0 and 1.

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