An adult sperm whale carcass washed up on Curtis island.
An adult sperm whale carcass washed up on Curtis island. Chris Ison

Beached whales appear to have died from natural causes

QUEENSLAND'S National Parks Service says two whales washed up on the state's central coast in recent days appear to have died from natural causes.

A 17-metre sperm whale was found on Curtis Island and a three-metre pygmy or dwarf whale was stranded on Great Keppel Island.

NPS acting manager Graham Hemson told the ABC the deaths were not a concern.

"The sperm whale is a large adult sperm whale - it's almost 17 metres so it's quite possible it's died of natural causes, of old age essentially," Mr Hemson said.

Tests will be run on the smaller corpse to determine the cause of death and to confirm whether it was a pygmy or dwarf sperm whale.

Mr Hemson said there was no link between the two deaths.

"In this case I think the larger whale probably died sometime before it was washed up, whereas the smaller whale seems to have beached itself while still alive and died shortly thereafter," he said.

"I think they're unrelated and in fact the smaller species do have a bit of a track record of beaching themselves."

QPWS encourages the public to report stranded marine animals to 1300 ANIMAL, with the information gathered from these reports of value to government conservation scientists and managers.