Port Stephens Dolphin census finds resident population stable Tea Gardens, Hawks Nest by News Of The Area - Modern Media - July 21, 2016July 21, 2016 THE 16th Port Stephens Annual Community Dolphin Census has confirmed the resident Bottle Nose Dolphin population is stable. A total of 86 dolphin sightings were recorded during a one hour observation period last month. Past studies conducted by Macquarie University estimate the Port Stephens dolphin population is approximately 90 individuals with up