Sharks could be used to predict the weather following ground-breaking research by a British marine biology student.
Lauren Smith is close to completing her PhD studies into the pressure sensing abilities of the species.
She used Aberdeen University's altitude chamber at the National Hyperbaric Centre (NHC) to test her theories.
Miss Smith had previously investigated the behaviour of lemon sharks in the Bahamas.
She then used their smaller, near relations - the lesser spotted dogfish (also known as the small spotted catshark) - for further research at the NHC chamber.
It is thought the work being carried out by the 24-year-old University of Aberdeen student is the first of its kind to attempt to test the pressure theory.
It was prompted by an earlier shark habitat study in Florida, which coincided with the arrival of Hurricane Gabrielle in 2001, when observations suggested that juvenile blacktip sharks moved into deeper water in association with the approaching storm.
Lauren Smith: "Who can say if this could lead to sharks predicting weather fronts, there's so much more we need to understand. But it certainly opens the way to more research."
If Miss Smith's studies prove the theory, scientists in the future could conceivably monitor the behaviour of sharks to anticipate severe weather fronts.
Miss Smith said: "I've always been keen on travelling and diving and this led me to an interest in sharks. I was delighted to have been able to explore this area for my PhD, particularly as it's the first time it's really been explored fully.
"I'm also extremely fortunate to have the University of Aberdeen facilities at the National Hyperbaric Centre right on the doorstep. How many other students get the chance to put a shark in a chamber to study its behaviour!
She added: "Who can say if this could lead to sharks predicting weather fronts, there's so much more we need to understand. But it certainly opens the way to more research."
Both Miss Smith and the NHC stress that there is no question of the dogfish being harmed in any way by the research. The changes in pressure mimic the pressure changes experienced in and around the ocean, caused by weather fronts, and the protocol was approved by the Home Office.
Miss Smith, who's originally from West Bromwich and completed her first degree (BSc Hons) in Marine Biology and Coastal Ecology at Plymouth University, studied shark behaviour in the wild at the Bimini Biological Field Station in the Bahamas.
It has been established that a shark senses pressure using hair cells in its vestibular system.
Work at the Bimini Shark Lab enabled her to observe shark behaviour by placing data logging tags to record pressure and temperature on juvenile lemon sharks, while also tracking them using acoustic tags and GPS technology.
This let her determine the exact movements of the juveniles, the first time hydrostatic pressure sensing of sharks in situ has been approached in this way.
She was also able to help on existing projects at the Bimini shark lab, which involved catching larger sharks – Tigers, Bulls, Blacktips, Nurse and Caribbean Reef sharks - and carrying out exercises like measurements and tagging for ID purposes.
Back at base in Aberdeen, Miss Smith was able to study the effects of tidal and temperaturechanges on dogfish in the aquarium at the Zoology building.
She was pleased to find she could also test the pressure theory by recreating weather conditions at the University of Aberdeen chamber at the National Hyperbaric Centre.
Miss Smith’s due to complete her PhD and prepare papers for publication later this year and will be looking for a job which will give her the chance to expand her experience of shark research.
The article Sharks 'could predict weather' originally appeared on 999 Today


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