The Conservation Regulator is investigating numerous reports of people using jet skis to chase and harass dolphins at Phillip Island.

Investigators are calling for information from the public as inquiries continue into the alleged incidents near the Cowes Jetty across summer.

On 28 December, jet ski operators were seen closely pursuing the dolphin near the Cowes Jetty and beachfront. Two jet skis were observed operating dangerously close to the dolphin, with one rider repeatedly chasing the animal and coming close to striking it.

In another reported incident on the same day, a jet ski forced the same dolphin into shallow water near swimmers, before a passenger jumped into the water and attempted to grab and ride the dolphin. Reports on the 26th of January and 7th of February detailed jet skis chasing a dolphin close to shore, coming within two metres of the animal and even crossing over it.

Further information was received that on the 17th of February; three jet skis were harassing dolphins in the waters off Cowes boat ramp on Phillip Island.

Under the Wildlife Act 1975, jet skis must stay at least 300 metres from dolphins, and swimmers at least 30 metres. It is illegal to feed or attempt to feed a dolphin. Breaching these rules can result in fines of up to $4,070.