Shirley Lincoln is "devastated".

Key points: Residents of Low Head suburb are concerned about the tourist attraction

Residents of Low Head suburb are concerned about the tourist attraction Some have called for domestic dogs to be banned in the area

Some have called for domestic dogs to be banned in the area The George Town Council hasn't ruled out a ban

This is the third time in 12 months the owner of Low Head Penguin Tours in northern Tasmania has dealt with the consequences of a suspected attack on penguins.

Residents and rangers found 12 penguin carcasses near the Low Head Lighthouse last week, and post mortem examination revealed their injuries were consistent with dog attacks.

In October, 58 penguins were killed in the conservation area, and another 12 dead birds were dumped in a rubbish bin in June.

"It's devastating because you know how good the penguin colony is going. And to see that this has happened again, it is a bit sad," Ms Lincoln said.

"And it's sad for my workers that also come across them."

Dozens of penguins have been killed in Low Head in the past 12 months.

Ms Lincoln's business is reliant on penguin tourism — she fears what will become of her business if the attacks do not stop.

"We employ quite a few, young and old, and it's giving these people a chance to get out and to start a workforce and learn to communicate with people," she said.

"It's up to us to keep an eye on what's happening and making sure everything's going right.

"[The dogs] can wipe the whole lot out in one night. It just depends if these penguins are out and about."

Late last year, the George Town Council flagged banning domestic dogs in the Low Head area within 12 years as an option to put an end to the attacks.

But while she did not rule out a future dog-ban, Mayor Bridget Archer on Wednesday said the council was focussing on fencing and adding additional cameras instead.

George Town Mayor Bridget Archer is frustrated by the attack. ( ABC News: Daniel Blades )

"In terms of whether it would be possible to ban domestic animals from the peninsula, I think it would be an incredibly radical approach," she said.

"I think what we need to get through to people is that really it comes down to responsible dog ownership."

Ms Lincoln agreed banning dogs would be a step too far.

Loading...

"Just make people aware with their dogs out here, keep them on a lead, don't let them wonder, check at the night 'where are the dogs?'," she said.

But George Town resident Darren Gross said with the rate the attacks are happening, banning dogs would be appropriate.

"You're hearing stories all the time about all these penguins being attacked by these dogs, and if the dogs are going to keep attacking penguins, there's not going to be a penguin to visit," he said.

Darren Gross says banning dogs can help save the penguins. ( ABC News: Laura Beavis )

"[The council needs] to step up and make sure the dogs don't attack them. Maybe fine them. Maybe more than just fine them but ban them."

Police Minister Michael Ferguson said the State Government was "committed" to looking after threatened species.

"We've got tough laws and there are significant sanctions for people who don't take the responsible action, for example looking after their pets," he said.