Boaters Urged to Slow Down as New Dolphin Calf Arrives in Port Phillip Bay

The Dolphin Research Institute warns boaters to be cautious in Port Phillip Bay following the birth of a new dolphin calf. Early months are critical for the calf’s survival.

Mornington Peninsula, Victoria – RPP FM has reported that the Dolphin Research Institute has renewed its call for boaters and water users to exercise caution following the birth of a dolphin calf in Port Phillip Bay this month.

The calf, the first of a fourth generation born locally, joins a pod frequently seen around the southern Peninsula but known to travel further afield. Researchers warn that dolphins are highly sensitive to human activity, with mother-calf pairs particularly vulnerable to disturbance during these critical early months.

On a recent Saturday, the institute observed signs of distress, including dolphins slapping their tails—an alarming behaviour visible and audible over long distances—indicating they were too closely approached by vessels.

“How often should a nursing mother dolphin be forced to flee from boats? Ideally, never,”

Said Jeff Weir OAM, the institute’s Executive Director.

“Imagine a new mum in a maternity ward bombarded by noisy strangers. It wouldn’t be allowed. These mothers need space, and it’s our shared responsibility to protect them.”

The institute emphasises key safety guidelines:

  • Swimmers must stay at least 30 metres from dolphins.
  • Boats should maintain 100 metres.
  • Personal watercraft must stay 300 metres away.
  • Penalties apply for breaching these rules.

The Dolphin Research Institute’s Dolphin Distancing initiative encourages the public to adopt respectful practices akin to a “Neighbourhood Watch” for dolphins. Individuals and groups can commit to the program, receive stickers for their vessels, and help foster responsible marine behaviour.

Dolphin harassment should be reported to Crime Stoppers at 1800 333 000.

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