Momentum is building for a truly national ban on a popular yabby trap which drowns any air-breathing animal that can fit inside it, including the vulnerable platypus.

So-called opera house traps are a collapsible net with a funnel-shaped entry on each side.

Neil Andison, who works as a platypus guide in Maleny on the Sunshine Coast hinterland, has spent a decade writing to politicians across Queensland in an attempt to highlight the urgency of the issue.

And he says it's not just platypus that become bycatch.

"They're a death trap," he says of the traps.

"Anything that breathes air that gets caught in them can't get out."

That includes the rakali, also known as the water rat. So too turtles, other reptiles such as water dragons and even waterbirds like cormorants.

For this reason, o

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