Table 1.

Mean and s.d. (for all sharks pooled) for each variable for each bout type. Light refers to light intensity in arbitrary units. Columns labelled as median refer to the median being calculated across the dives in each bout for each shark and the values in the table refer to the means of these values for all sharks.

bout typemedian min. dive temp. (°C)median max. light per divemedian range in dive temp. (°C)median max. dive depth (m)median post-dive surface duration (min)median dive duration (min)median dive bottom time (min)median dive descent rate (m s−1)median dive ascent rate (m s−1)bout duration (min)no. dives per boutpost-bout surface interval (min)
126.91 ± 1.45181.55 ± 22.102.08 ± 3.5154.81 ± 38.3438.08 ± 56.5213.93 ± 17.9111.44 ± 18.740.56 ± 0.67−0.43 ± 0.43134.91 ± 193.904.69 ± 8.9452.60 ± 70.20
225.80 ± 3.4157.55 ± 23.313.68 ± 5.4273.98 ± 75.5823.36 ± 37.2224.04 ± 39.6420.09 ± 35.600.49 ± 0.82−0.41 ± 0.51244.09 ± 318.809.88 ± 15.5132.05 ± 43.96
313.74 ± 4.35197.55 ± 23.6217.78 ± 5.66340.29 ± 120.33141.21 ± 166.51168.54 ± 147.97144.54 ± 146.810.44 ± 0.22−0.27 ± 0.13369.91 ± 283.251.42 ± 1.65145.73 ± 174.08