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Residency and Spatial Use by Reef Sharks of an Isolated Seamount and Its Implications for Conservation

Figure 4

Area use maps, showing the 95% contours of the number of hours of detection occurred for sharks at different tagging locations and the comparison of spatial use with Pianka’s niche overlap value (O), where 0 represents no overlap and 1 equals total overlap.

Panel A - whitetip reef sharks tagged at three locations.Note that for the O value calculation, sharks tagged at Admiralty and False Entrance were pooled and compared with North Horn individuals. Panel B – Adult grey reef sharks tagged at two locations. Panel C – All adult grey reef sharks compared with juveniles. The grey shaded area represents the 80% contours of juvenile hourly detections.

Figure 4

doi: https://doi.org/10.1371/journal.pone.0036574.g004