Redlands resident Bill Weatherilt says fishing gear - especially crab pots - is being left unattended for long periods and posing a threat to the bay's turtle population.
Mr Weatherilt recently found a large turtle that had been killed in a crab pot anchor line at Point Halloran.
He said it was obvious the animal would have died in pain as the rope had cut into a front flipper.
"An animal this big is probably close to 100 years old," he said. "He's been around a lot longer than you and I."
Mr Weatherilt said it was sad when such an animal was killed by poor practices like crab pots being left unattended for long periods.
Places like Point Halloran, Wellington and Cleveland points regularly have crab pots wash ashore although many fisherman claim that when pots disappear, it is due to them being stolen by other fishers.
It comes as Environment Minister Steven Miles launches online training for people who want to help marine turtles stranded on the Great Barrier Reef and Moreton Bay coasts.
The training package has been developed by the Queensland Parks and Wildlife Service and Great Barrier Reef Marine Park Authority.
Dr Miles said volunteers were responding to about 60 percent of marine animal strandings and online training was expected to increase this response rate.
See the full Redland City Bulletin story.
