Estimating the abundance of the critically endangered Baltic Proper harbour porpoise (Phocoena phocoena) population using passive acoustic monitoring

Four main datasets are provided, together with meta-data and processing code files. 1. SAMBAH main survey: passive acoustic monitoring data collected by CPOD click loggers in the Baltic Sea May 2011-April 2013. 2. Great Belt tracking experiment: detection/nondetection of acoustically tracked harbour porpoises May-June 2013 in Great Belt, Denmark. 3. Playback experiment: detection/nondetection of artificial clicks produced to estimate click detectability during the SAMBAH main survey and Great Belt tracking experiment. 4. Tagging study: click production and depth data from 6 tagged porpoises in Danish waters between May 2010 and April 2011.