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Table 2.

Summary of diving and surfacing behaviour for Rheodytes leukops at three water depth treatments

Water depth (cm)Median dive duration (min)Maximum dive duration (h)Surfacings h−1Ascent time (s)Median surfacing duration (s)
50 106.9±18.4 9.68±1.20 0.52±0.08 13.0±1.1 91.8±12.6 
100 95.5±23.0 9.24±1.49 0.51±0.07 58.0±5.1 102.0±12.7 
150 133.2±20.4 7.82±0.80 0.43±0.06 98.4±13.1 176.8±27.5 
Water depth (cm)Median dive duration (min)Maximum dive duration (h)Surfacings h−1Ascent time (s)Median surfacing duration (s)
50 106.9±18.4 9.68±1.20 0.52±0.08 13.0±1.1 91.8±12.6 
100 95.5±23.0 9.24±1.49 0.51±0.07 58.0±5.1 102.0±12.7 
150 133.2±20.4 7.82±0.80 0.43±0.06 98.4±13.1 176.8±27.5 

Values are means ± s.e.m. (N=16).

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