S1. Track lines of harbour porpoises as distances from loudspeaker from Simulated seal scarer sounds scare porpoises, but not seals: species-specific responses to 12 kHz deterrence sounds
posted on 2017-07-04, 11:29authored byLonnie Mikkelsen, Line Hermannsen, Kristian Beedholm, Peter Teglberg Madsen, Jakob Tougaard
Track lines of harbour porpoises plotted as distances from loudspeaker (metres) relative to time of exposure (minutes). Vertical red stippled lines indicate period of sound exposure and are therefore absent in the four control trials (trial 1-4). Baseline observations (blue), observations made during sound exposure (red) and observations during recovery (green) of harbour porpoises.