Data are presented as detection-positive days (DPD) and detection-positive hours (DPH) for both species (Dol and Porp in spread sheet)

The data contains the following columns:

SiteID = Site identifier

site = Site Name

Latitude = Site Latitude (decimal degrees)

Longitude = Site Longitude (decimal degrees)

YY = Year of observations

Ndays = Total number of days recorded

Porp_DPD = Number of detection positive days for porpoise

PorpDPH_median = Median porpoise detection-positive hours for each site

Porp_Detection_positive = Proportion of porpoise detection-positive days (out of total days recorded, Ndays)

Dol_DPD = Number of detection positive days for dolphin

DolDPH_median = Median dolphin detection-positive hours for each site

Dol_Detection_positive = Proportion of dolphin detection-positive days (out of total days recorded, Ndays)