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Table 1 Estimated swimming displacement and bearings of tagged sharks by species

From: Bringing data to the surface: recovering data loggers for large sample sizes from marine vertebrates

Species n tagged (recovered) n used in displacement analysis Swimming displacement range (km day−1) Mean swimming displacement ± SD (km day−1) Bearing range (°) Mean bearing ± SD (°)
Blacktip 77 (75) 33 0.5–63 21* ± 15 12–334 219 ± 86
Tiger 45 (44) 37 1–55 27** ± 15 7–332 230 ± 65
Sandbar 41 (41) 30 2–72 33** ± 19 149–318 244 ± 42
Spinner 11 (10) 3 17–41 29 ± 12 184–276 238 ± 48
Bull 11 (11) 9 0.25–79 27 ± 28 161–351 287 ± 78
Hammerhead 7 (6) 2 4–5 5* ± 0.4 149–324 236 ± 124
Dusky 1 (1) 1 47 47 281 281
All Sharks 193 (188) 115 0.25–79 27 ± 18 7–351 236 ± 70
  1. Displacement and bearing information were calculated based only on sharks that survived longline capture and were swimming for the duration of the deployment. Packages that were attached to sharks for less than 6 h or had an estimated floating displacement greater than the total displacement were also excluded. Asterisks denote significant differences in displacement distances (Dunn test p < 0.05), with blacktips and hammerheads showing shorter displacement than tiger and sandbar sharks