Queensland Boating and Fisheries Patrol (QBFP) has launched an investigation after scores of native wildlife including turtles, fish and even an eagle were found dead in illegal fishing nets in the Logan River.
Minister for Agricultural Industry Development and Fisheries Mark Furner said the four nets were discovered by the QBFP in the river at Jimboomba.
"As many as 120 turtles, a water dragon, freshwater bullrouts and Australian bass were found dead in these nets," he said.
"Most of these creatures were decomposing, suggesting these nets have been there for some time.
"Officers even found a White-bellied sea eagle that had somehow got caught in these nets and unfortunately perished.
"Fortunately our QBFP officers managed to free two turtles that were still alive.
"I am appalled and sickened by these wanton acts of destruction because they cause great damage to local native wildlife populations as well as fish stocks."
Mr Furner said the QBFP had now launched an investigation into who left the nets in the river.
"The use of these types of nets is not allowed in freshwater," he said.
"Those found responsible for putting these types of nets in the river could face fines of up to $131,000.
"I would like to thank members of the public who reported these nets using our Fishwatch hotline.
"Queensland's native wildlife and fisheries resources are owned by the community and everyone is responsible for ensuring they're managed and fished sustainably for future generations."
To report suspected illegal fishing activity call the 24 hour, toll-free Fishwatch hotline on 1800 017 116.
