Submarine hitchhikers spreading disease

Submarine operators have been warned about the dangers of hitchhikers in a new study by marine scientists.

An international research team says hardy deep-sea animals are hitching rides with the subs used by scientists and potentially spreading disease in pristine ecosystems.

Among the culprits is a limpet that lives 2000 metres beneath the northeastern Pacific Ocean but can also survive in air when a sub is pulled from the water.

“You can bring it up from two kilometres depth and keep it in four degrees and they would crawl around on buckets and even come up out of the water and still be mobile and active,” Dr Amanda Bates from the University of Tasmania’s Institute for Marine and Antarctic Studies told AAP.

If it goes undetected, the Lepetodrilus gordensis limpet can find itself in another habitat when the sub is used again.

It gets worse, though, with up to 90 per cent of its population infected by a parasite that wouldn’t be out of place in a horror movie.

“It actually castrates this limpet,” Dr Bates said.

“So essentially that animal becomes this parasite because it’s basically being driven around by this parasite. It’s awful.”

The researchers, whose findings are published in the journal Conservation Biology, discovered 38 of the limpets after a mission of the manned scientific sub Alvin.

They then found them 600km away from their only known habitat and became suspicious.

Dr Bates is concerned that deep-sea environments could be at risk in the same way coastal environments have been hit by the diseases of invasive species.

“We know from shallow water systems that one mistake can completely change a system,” she said.

Fortunately, the solution could be as simple as remembering to thoroughly clean the subs.

“The scientists themselves have to be better at not getting caught up in their research, just taking a step back and making sure that those jobs are getting done” Dr Bates said.

You can skip to the end and leave a response. Pinging is currently not allowed.

Leave a Reply

Powered by WordPress | Designed by: Premium WordPress Themes | Thanks to Themes Gallery, Bromoney and Wordpress Themes