Fig. 2
From: Harbour porpoises in the Aegean Sea, Eastern Mediterranean: the species’ presence is confirmed
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs41200-016-0050-5/MediaObjects/41200_2016_50_Fig2_HTML.gif)
Survey tracks conducted by SOTW in the northern Aegean Sea (black lines represent survey with visual and acoustic effort and grey lines represent the survey with acoustic effort only) a low resolution transects, b higher resolution coastal blocks (marked 1–7, black dotted line) and coastal transects