A whale carcass remains at Thirteenth Beach, Barwon Heads after it washed ashore on September 12.
An increase in shark activity was reported at Thirteenth Beach with Victorian Fisheries Authority (VFA) saying a whale carcass can attract sharks to the area, which means they are closer to the shore than normal.
The warning has been issued for Barwon Heads and Ocean Grove.
A Department of Energy, Environment and Climate Action spokesperson said expected high tides and large swell this weekend might move the carcass and that no decision had been made on what do with it.
“A whale carcass remains on Thirteenth Beach, west of the Bluff near Barwon Heads,” the spokesperson said.
“We appreciate that while these animals are magnificent to see, we remind everyone to keep their distance for safety reasons. While the beach is not closed, a shark warning message remains in place. Swimmers and surfers should avoid the area.
“We are continuing to work through different management options. Sampling has been taken to determine the species of the whale.
“We’re also reminding everyone that whales are protected under the Wildlife Act 1975 – regardless of whether they are alive or deceased.
“It is an offence to interfere with, take or be in possession of parts of a deceased whale. Conservation Regulator Victoria is responding to reports of people interfering with the carcass.”