Wildlife officers have caught and euthanised two crocodiles, responsible for the death of a man who never returned from a fishing trip off Hinchinbrook Island.

69-year-old Andrew Heard, was last seen heading towards Gayundah Creek in a 2.5 metre dingy on Thursday afternoon.

Police say wildlife officers found human remains on Friday, believed to belong to Mr Heard, but further forensic analysis will be conducted to confirm.

The Department of Environment located a 4-metre crocodile in the area on Saturday afternoon, which was later found to have human remains inside of it.

A second crocodile, almost 3-metres-long was captured overnight and is yet to undergo a necropsy.

Cairns police, Acting Inspector Andrew Cowie says "the characteristics of the [second] crocodile are consistent with having been involved in this incident."

It is the third crocodile attack in the Far North in three weeks, prompting Member for Kennedy, Bob Katter to call for the removal of the reptiles from populated areas.

“We aren’t talking about a crocodile issue, we are talking about the value of a human life,” Mr Katter says.

"I believe it would have to be removal by bullet but I would assume in the vast bulk of cases there's two or three, crocodile sanctuaries, zoos and farms being set up and please god, they will provide the feed stock for what would be localised industries," he says.

He is also calling on the Queensland Government to introduce higher rates of egg harvesting to control population numbers.

Environment Minister Meaghan Scanlon says her thoughts are with the family and friends of Mr Heard.

She says the government has invested $6 million in crocodile management including capturing and removing crocodiles and public education campaigns.