Police have arrested and charged two people in Bundaberg after 55 greyhound carcasses were discovered dumped late on Wednesday.

The Queensland Police Service and the RSPCA's joint taskforce into the disgraced greyhound racing industry discovered the mass dumping site south of Bundaberg after being tipped off.

A 71-year-old Bundaberg man has been charged with the unlawful possession of a firearm and a 64-year-old Bundaberg woman and licensed greyhound trainer has been charged with one count each of unlawful possession of a firearm and obstruct police.

The pair were charged after a search warrant was executed at a Bundaberg residence by the joint Queensland Police Service/RSPCA Greyhound Racing Inquiry Taskforce.

Police say 55 greyhound carcasses were found dumped at a site south of Bundaberg on Wednesday night. ( ABC News: Kallee Buchanan )

The pair are due to appear in court next month.

RSPCA Queensland spokesman Michael Beatty said inquiries were continuing.

"A lot of people in the area who were involved in the greyhound industry were questioned and it was as a result of information given to us that the joint Queensland Police Service and RSPCA investigation team made those arrests," he said.

Detective Superintendent Mark Ainsworth said on Thursday the greyhounds were found off Coonarr Road in the Vera Scarth-Johnson Wildflower Reserve in varying states of decomposition, which indicated they were dumped at different times.

The greyhound carcasses were found in the Coonarr area, south-east of Bundaberg. ( Google Maps )

There was no attempt to bury the carcasses and they were left out, some with a single gunshot wound, to be fed on by wild animals, police said.

Wildfires have ripped through the area in recent months, destroying some of the carcasses, and police are investigating if the fires were deliberately lit.

Earlier on Thursday, Police Minister Jo-Ann Miller said Racing Queensland and police had identified a number of trainers and owners in the area and that would form part of the investigation.

Detective Ainsworth said many of the deaths appeared to have occurred before the ABC's Four Corners program exposed in February live-baiting and cruelty in the industry.

The program showed footage of live piglets, possums and rabbits being fixed to mechanical lures and catapulted around tracks while being chased, and eventually killed, by dogs.

Greyhound remains still at the beachside reserve near Bundaberg where they were dumped. ( ABC News: Kallee Buchanan )

The program led to numerous animal cruelty charges, life bans from the industry and the creation of the taskforce.

In Queensland, a total of 36 trainers have been suspended over the scandal, with six now issued with life bans from dog racing.

The Queensland Government has also ordered an independent review of the state's greyhound industry to investigate how the practice went undetected.