About the Authors

Ken P. Findlay

findlayk@cput.ac.za

Affiliation Mammal Research Institute Whale Unit, University of Pretoria, Pretoria, Wynberg, South Africa / Current address: Research Chair: Oceans Economy, Cape Peninsula University of Technology, Cape Town, South Africa

S. Mduduzi Seakamela

Affiliation Department of Environmental Affairs, Branch Oceans and Coasts, Victoria & Alfred Waterfront, Cape Town, South Africa

Michael A. Meÿer

Affiliation Department of Environmental Affairs, Branch Oceans and Coasts, Victoria & Alfred Waterfront, Cape Town, South Africa

Stephen P. Kirkman

Affiliation Department of Environmental Affairs, Branch Oceans and Coasts, Victoria & Alfred Waterfront, Cape Town, South Africa

Jaco Barendse

Affiliation Mammal Research Institute Whale Unit, University of Pretoria, Pretoria, 0001, South Africa [c/o 16 Ebor Rd, Wynberg, South Africa] / Current address: Marine Stewardship Council, 1 Snow Hill, London, United Kingdom

David E. Cade

Affiliation Department of Biology, Hopkins Marine Station, Stanford University, 120 Ocean View Blvd, Pacific Grove, CA, United States of America

David Hurwitz

Affiliation 12 Victory Way, Simon’s Town. Cape Town, South Africa

Amy S. Kennedy

Affiliation The Marine Mammal Laboratory, Alaska Fisheries Science Center, 7600 Sand Point Way NE. Seattle, WA, United States of America

Pieter G. H. Kotze

Affiliation Department of Environmental Affairs, Branch Oceans and Coasts, Victoria & Alfred Waterfront, Cape Town, South Africa

Steven A. McCue

Affiliation Department of Environmental Affairs, Branch Oceans and Coasts, Victoria & Alfred Waterfront, Cape Town, South Africa

Meredith Thornton

Affiliation Mammal Research Institute Whale Unit, University of Pretoria, Pretoria, Wynberg, South Africa

O. Alejandra Vargas-Fonseca

Affiliation ConserBio Foundation, Heredia, Costa Rica

Christopher G. Wilke

Affiliation Department of Agriculture, Forestry and Fisheries, Branch: Fisheries Management, Foretrust Building, Foreshore, Rogge Bay, Cape Town, South Africa

Competing Interests

We have the following interests: DH is employed by The Simon's Town Boat Company. There are no patents, products in development or marketed products to declare. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: KPF MAM SMS. Data curation: MAM AK MT SMS DH. Funding acquisition: MAM SMS. Investigation: KPF SK DEC MAM PGHK SAM AK JB OAVF MT SMS DH CGW. Methodology: KPF MAM AK SMS. Project administration: KPF MAM SMS. Resources: MAM SMS DH. Supervision: KPF JB. Validation: KPF SMS. Visualization: KPF. Writing – original draft: KPF. Writing – review & editing: KPF SK DEC MAM AK JB OAVF MT SMS DH CGW.