Navigation Links
Curtin researchers to hide our splashes from sharks
Date:1/21/2014

Curtin University researchers will attempt to "mask" the noise of swimmers from sharks after receiving a grant from the State Government's Shark Hazard Mitigation Strategy.

The project, led by Dr Christine Erbe at Curtin's Centre for Marine Science and Technology, will first look at characterising noises produced from swimming, surfing and kayaking that are detectable by a number of large shark species.

Researchers will then compare shark behaviour when the human noises are detectable to when they are masked, to see if masking typical swimmer noises can be effective at disrupting detection of humans.

"If we can successfully identify a difference in behaviour, masking sounds could be broadcast into the water by speakers along WA beaches or perhaps by the development of small, personal maskers that could be used by swimmers and other water users," Dr Erbe said.

"There are already a number of approaches aimed at reducing shark attacks, such as the use of nets to keep sharks out of swimming areas and repelling sharks with deterrence devices.

"But our approach is a little different, as it looks at interfering directly with the shark's ability to detect humans.

"We believe this approach is minimally invasive, will have minimum environmental impact and is the only long-lasting solution, as, in contrast to deterrence devices, there is no risk of the sharks becoming accustomed to a stimulus and ceasing to respond to it."

With a grant worth $130,124 over three years, the team will record the noise of typical human activity at Perth beaches where shark encounters have occurred previously.

The researchers will then determine the exact sound cue of human activities that can be detected by sharks and design and compare two kinds of artificial signals one that mimics a typical beach environment and one that masks the sound cue detected by sharks.

Dr Erbe believes there is a fundamental lack of understanding of the mechanisms that various species of shark use to detect and locate possible prey, whether it be through sight, smell, sound or other cues.

"It is likely that sound is the cue used most by sharks it is the only cue that travels fast and over long ranges underwater," Dr Erbe said.

"Sound provides the most effective long-range stimulus in the marine environment, with most marine megafauna relying on sound for communication, navigation and foraging."

The funding is part of the second round of applied research funding through the State Government's Shark Hazard Mitigation Strategy.

The first round of funding also funded Curtin's Centre of Marine Science and Technology to research sonar detection and imaging of sharks.


'/>"/>

Contact: Megan Meates
megan.meates@curtin.edu.au
61-892-644-4241
Curtin University
Source:Eurekalert

Related biology news :

1. Researchers discover how heart arrhythmia occurs
2. Researchers collaborate to reduce effects of the aging eye
3. 1 step at a time, researchers learning how humans walk
4. Researchers discover that coevolution between humans and bacteria reduces gastric cancer risk
5. Researchers identify key components linking circadian rhythms and cell division cycles
6. Microbes swap for tiny goods in minuscule markets, researchers find
7. New discovery could stimulate plant growth and increase crop yields, researchers say
8. White House lauds ONR-funded researchers for early success
9. KIT researchers develop artificial bone marrow
10. Researchers pursuing arthritis protein
11. Researchers discover a tumor suppressor gene in a very aggressive lung cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/6/2016)... WARSAW, Ind. , Dec. 6, 2016  Zimmer Biomet ... that it has priced an offering of €500.0 million principal ... €500.0 million principal amount of its 2.425% senior unsecured notes ... is expected to occur on December 13, 2016, subject to the ... on an annual basis. ...
(Date:12/6/2016)... RALEIGH, N.C. , Dec. 6, 2016 ... technology, announced today it has seen a third consecutive ... biometric sensor technology in 2016 with a 360 ... over last year. This increase was driven by sales ... well as robust interest in its technology for hearables ...
(Date:12/6/2016)... DALLAS , Dec. 6, 2016 ... criminal justice technology solutions for public safety, investigation, ... (PEP) jointly announced today a five (5) year ... exclusive agreement to expand the rehabilitation and reentry ... PEP History Established in 2004, the Prison ...
Breaking Biology News(10 mins):
(Date:12/5/2016)... -- Axovant Sciences Ltd. (NYSE: AXON ), ... of dementia, today announced that data on the investigational ... will be presented at the 2016 Clinical Trials in ... in San Diego . Intepirdine presentations ... complex measures of activities of daily living (ADLs) and ...
(Date:12/5/2016)... -- Research and Markets has announced the addition ... Companies" to their offering. ... , , This report ... technologies such as proteomics and metabolomics. Molecular diagnostics technologies are used ... on biomarker. Currently the most important applications of biomarkers ...
(Date:12/5/2016)... ... December 05, 2016 , ... In anticipation ... and lumbar disc production, company President, Jake Lubinski will be traveling to Germany ... AxioMed disc in Cologne and Karlsruhe to discuss the benefits of a viscoelastic ...
(Date:12/5/2016)... SAN DIEGO , Dec. 5, 2016 /PRNewswire-USNewswire/ ... treatments for congestive heart failure and other chronic ... is joining the company as Chief Financial Officer ... Renova Therapeutics with 20 years of experience in ... closely held biotech and software companies. Most recently, ...
Breaking Biology Technology: