Fishers on holiday in South Westland have killed four endangered Hectorâs Dolphins in their set nets without showing any concern for their actions. At the end of October a member of the public discovered four dead Hectorâs dolphins tangled in a set net on a remote section of Neilâs Beach near Haast. There was no sign of the net when DoC staff arrived on the scene, the dolphins had been cut from the net and left discarded on the beach. The killing of dolphins in a set net is not an offence under the Marine Mammal Protection Act 1978 but it is an offence to fail to report such incidents. Hectorâs dolphins are one of the worldâs rarest dolphin species and are found only in New Zealand waters.