About the Authors

Kay Weltz

k.weltz@iafrica.com

Affiliation Marine Research Institute and Zoology Department, University of Cape Town, Rondebosch, Cape Town, South Africa

Alison A. Kock

Affiliations Marine Research Institute and Zoology Department, University of Cape Town, Rondebosch, Cape Town, South Africa, Shark Spotters, Fish Hoek, Cape Town, South Africa

Henning Winker

Affiliation Marine Research Institute and Zoology Department, University of Cape Town, Rondebosch, Cape Town, South Africa

Colin Attwood

Affiliation Marine Research Institute and Zoology Department, University of Cape Town, Rondebosch, Cape Town, South Africa

Monwabisi Sikweyiya

Affiliation Shark Spotters, Fish Hoek, Cape Town, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KW AK CA HW. Performed the experiments: KW AK HW CA. Analyzed the data: KW AK HW CA. Contributed reagents/materials/analysis tools: KW AK HW CA. Wrote the paper: KW AK HW CA. Managed recording of shark spotting data: MS.