Fears that crocodile numbers have exploded in northern Australia, with more sightings off surf beaches, in swimming holes and near towns, have sparked calls for the re-introduction of crocodile culling.

But a new saltwater crocodile conservation plan for the tropical state of Queensland proposes instead to slap heavy fines up to A$7,500 (US$6,000) on swimmers caught in crocodile waters, as a means of separating man from man-eater.

“It’s a classic example of lateral thinking,” Queensland politician Bob Katter said yesterday in ridiculing the plan.

“Instead of removing the crocs, they’re going to remove human beings,” said Katter, who believes crocodile culling should be re-introduced as the prehistoric-looking creatures venture closer to populated towns and beaches.

Commercial hunting of crocodiles was banned in the 1970s, and many people in northern Queensland believe crocodile numbers have exploded, saying crocodiles now cruise beaches, boat harbours and freshwater swimming holes used by locals and tourists.

Surf lifesavers at Forrest Beach near Townsville in northern Queensland have spotted six crocodiles in the water since December.