WILDLIFE officers are working to remove a crocodile sighted by a fisherman in the Mary River.

The sighting was reported on October 19 after a man saw a crocodile, believed to measure about 3.5 metres, in the area of the Mary River and Tinana Creek.

A spokesman from the Department of Environment and Heritage Protection said work was being carried out to attempt to catch the crocodile.

READ: 9 Croc Sightings in the Mary River

"Wildlife officers responded by conducting a site assessment, installing a floating crocodile trap and deploying recent crocodile sighting warning signs in the area," he said.

"Members of the public are strongly encouraged to report all crocodile sightings to EHP on 1300 130 372.

"All sighting reports are investigated and contribute to the effectiveness of crocodile management."

TOP GT CROC STORIES 2016:

OCT 31: Croc report reveals little support for crocodile cull

OCT 23: Wildlife officers investigate after croc drags cow

OCT 12: Search on for crocodile in Hervey Bay

SEPT 2: More crocs sighted in the Mary River

AUG 2: Monster 12-foot croc spotted off Burnett Traffic Bridge

JUNE 1: $5.8m will help 'manage' Mary River crocodiles

MAY 15: Mary River crocodile: cold snap does not stop search

APRIL 28: Was Mary River croc spotted near the Brolga?

APRIL 21: Mary River crocs - why are they so far south?

APRIL 21: OPINION: Crocodiles should be left alone in Mary River

April 20: WATCH: Wildlife officer says crocs 'must be removed'

April 20: Wildlife officer 'not at all surprised' by croc sighting

Members of the public are reminded to exercise CrocWise behaviour at all times. In particular:

- Obey croc warning signs

- Don't swim or let domestic pets swim in waters where crocs may live

- Be aware that crocodiles also swim in the ocean

- Stand back from the water when fishing or cast netting

- Never provoke, harass or feed crocs

- Never leave food, fish scraps or bait near the water, a camp site or boat ramp

- Never interfere with or fish or boat near crocodile traps, and

- Always supervise children

- Remember, you are responsible for your own safety in croc country.

For more information visit the Department of Environment and Heritage Protection.