Population ecology of Indo-Pacific bottlenose dolphins along the south-east coast of South Africa

作者: O Alejandra Vargas-Fonseca , Pierre A Pistorius , Stephen P Kirkman , Vic G Cockcroft

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摘要: Bay and the Goukamma MPA), were more likely to be associated with other behaviours (eg foraging, socialising). There was a relatively low association of encounters with MPAs, possibly due to the fact that two of the three MPAs in the area (Tsitsikamma and Robberg) were characterised by non-preferred habitat, namely rocky shorelines. Comparison with Sousa plumbea showed similarity in habitat preferences between the species, though S. plumbea also showed an affinity for estuarine habitats. Two areas that were highly utilised by both species were located along Goukamma MPA and the north-east section in Plettenberg Bay including the Keurbooms Estuary. The latter is unprotected and a management measure could be to create a controlled-use zone to reduce disturbance to dolphins there.

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