Feeds

Whistling dolphins wired for sound

Just put your lips together and blow

Top three mobile application threats

Boat-shy dolphins could soon be located via software that identifies what the species is by listening to the individual whistles the marine mammals make.

According to a new study by the Acoustical Society of America (ASA), identifying different types of dolphins could help observers monitor any fall in the number of sightings of the mammal.

Traditionally, surveys are performed by monitoring dolphins for possible harm from fishing fleets by observing the animals from a boat.

However, as many dolphins spend a lot of time underwater – what with them being animals of the sea and all – visual sightings can be difficult to accurately measure; there is also the further complication for observers that some species are shy of boats.

The ASA said it has turned to acoustics in the hope of providing more accurate data on dolphin activity in heavily fished areas where the mammals are at greater risk of being harmed.

It found in tests that dolphins make a variety of sounds that include species-specific whistles made up of frequencies between two and 30 kilohertz, reports the New Scientist.

The marine-life research group trailed a microphone from a survey boat and then fed the sound they picked up from dolphins to an on-board computer.

It said that specially developed software was then able to identify eight types of dolphin with up to 80 per cent accuracy.

More from the ASA here. ®

3 Big data security analytics techniques

More from The Register

next story
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
Opportunity selfie: Martian winds have given the spunky ol' rover a spring cleaning
Power levels up 70 per cent as the rover keeps on truckin'
Liftoff! SpaceX Falcon 9 lifts Dragon on third resupply mission to ISS
SpaceX snaps smartly into one-second launch window
KILLER ROBOTS, DNA TAMPERING and PEEPING CYBORGS: the future looks bright!
Americans optimistic about technology despite being afraid of EVERYTHING
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
R.I.P. LADEE: Probe smashes into lunar surface at 3,600mph
Swan dive signs off successful science mission
Elon Musk's LEAKY THRUSTER gas stalls Space Station supply run
Helium seeps from Falcon 9 first stage, delays new legs for NASA robonaut
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.