Table 3 in Acoustic monitoring reveals the times and tides of harbor porpoise (Phocoena phocoena) distribution off central Oregon, U. S. A.

Table 3. Simultaneous DMON site deployment data: For the periods when recording devices were present at both the reef and offshore sites and simultaneously recording, the number and percent of porpoise positive minutes (PPMs), and buzz positive minutes (BPMs) detected at each site are given, as well as the number and percent (displayed in bold) that were detected at both sites simultaneously during the same 10 min time period.
Detection typeLocationNumber of detectionsPercent of total detection typePPMsReef Offshore Present at both1,297 514 52155.6% 22.0% 22.3%BPMsReef Offshore Present at both546 207 4368.6% 26.0% 5.4%