[1] Marine Megafauna Fdn, Praia Do Tofo, Mozambique
[2] Univ Queensland, Ctr Spatial Environm Res, St Lucia, Qld 4072, Australia
[3] CSIRO Marine & Atmospher Res, Cleveland, Qld 4163, Australia
[4] Univ Queensland, Ctr Applicat Nat Resource Math CARM, St Lucia, Qld 4072, Australia
[5] All Out Africa Res Unit, Lobamba, Swaziland
[6] Eyes Horizon, Praia Do Tofo, Mozambique