Fig. 1
From: Random swims: an evaluation of acoustic telemetry thresholds for shark behavior and residency
Random walk trial example simulating a shark swimming in a receiver. 1.1 shows the path illustrated in blue with a starting point (black point “A”) and ending point (black point “B”) throughout the 24-h trial. The semicircles represent each detection range for one acoustic receiver placed along a shoreline. The paths visualized an example route taken randomly from our simulated shark individual data sets. 1.2 shows detections and missed detections (missed = red, detected = green). The random walk parameters were as follows: semicircle diameter: 500 m; swimming speed: 0–1 m/s (changed every 1 s); trial duration: 86,400 s (1,440 min; 24 h); and steps: turn angle randomized every 1 s of swim time