Bayworld marine biologist Dr Greg Hofmeyr has called for boat crews to keep a lookout for marine mammals after a dolphin, apparently killed by a speeding vessel, washed up at Bluewater Bay at the weekend.

Hofmeyr said on Wednesday he had been alerted on Saturday evening by a member of the public about the dolphin, which had washed up on Bluewater Bay Beach about 200m east of the Swartkops Estuary mouth...