During a 2013 field project in Gansbaai, South Africa we collected valuable data for over 6 months on the unique dorsal fin notch pattern and length of white sharks (Carcharodon carcharias). Combining two non-invasive methods like dorsal fin photo ID (see Andreotti et al. 2014) and parallel laser photogrammetry, we succeeded to measure (and re-measure) individual…
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