Hawaii Shark Attacks: 'Shark Shield' Should Prevent Them

MarineLink.com
Thursday, September 05, 2013
Image courtesy of Shark Shield

Surfers, kite surfers, swimmers, snorkelers — they've all suffered attacks by sharks in Hawaii this year, but Shark Shield , the Australian manufacturer of a patented shark deterrent, believes attacks could have been avoided if its electrical shark deterrent, the Shark Shield FREEDOM7, had been worn.

The company’s electrical shark deterrent is the result of more than 20 years of scientific research by some of the world’s leading experts in sharks including the KwaZulu-Natal Shark Board of South Africa.

The result of these two decades of research and development is the Shark Shield FREEDOM7 , the only scientific proven and independently tested electrical shark deterrent designed to reduce the risk of an unwanted shark encounter.

In 2012, scientists from SARDI (South Australian Research Institute) released detailed research where they conducted 116 static bait trials on the Shark Shield FREEDOM7 near the Neptune Islands of South Australia and 189 dynamic trials using seal decoy tows near Seal Island, South Africa.

In the static test, the product significantly increased the time for sharks to take the bait. Once the device was activated, observers noticed a decrease in interactions within two meters. Throughout the seal decoy tow tests, there were no breaches and only two at-surface interactions when the device was turned on. With the device turned off, there were 16 breaches and 27 surface interactions.

Amanda Wilson, Managing Director of Shark Shield, says the deterrent works on the principle that all chondrichthyes — sharks, rays, skates and chimeras — possess ampullary receptors in their heads which are used to find food, communicate and find a mate. These receptors are tuned to low-frequency fields but they only operate when in close proximity with food — or a diver.

“Strapped to the ankle of a swimmer or diver, the Shark Shield emits an electromagnetic field between two electrodes that disturbs these receptors with what has been described as a lightning fast pain of whale-like proportions,” says Amanda, adding that there are no known long-term adverse effects to the shark from the electrical field, but the discomfort is enough for it to deter a shark from approaching a swimmer or diver.
 

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter April 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Chevron Suffers Loss, Plans Job Cuts

Chevron Corp. reported a first-quarter loss as slumping oil prices continued to drag down revenue. The company said that it is "on target" to lay off a total of 8000 workers by the end of 2016,

China COSCO to be First through the Expanded Panama Canal

China COSCO Shipping has won the draw for its container vessel Andronikos to make the ceremonial first transit through the Expanded Panama Canal during the waterway’s inauguration on Sunday, June 26.

Sellick Equipment to Open New Facility

On April, 20, 2016, at the young age of 97 years, Walter Sellick along with sons Howard Sellick - President, David Sellick - Vice President and grandson Colin Sellick - Systems Manager,

Technology

Lerwick Harbor sees Seasonal Boost

The opening of the offshore season in northern waters has seen specialist oil industry vessels return to Lerwick Harbor during April to support subsea development projects.

ExxonMobil 1Q Profits Plunge 63%

Highlights   * Earnings of $1.8 billion decreased 63 percent from the first quarter of 2015.   * Earnings per share were $0.43 assuming dilution.   * Cash

KICT Welcomes MSC MEL 1 Service First Call

MSC Lana Voy-JA618R made its inaugural call at Karachi International Container Terminal (KICT), marking the launch of a new Middle East Loop 1 (MEL 1) Service.

Marine Science

ACR to Debut Pathfinder PRO SART at OTC

An important addition to any commercial vessel’s survival gear kit, the Pathfinder PRO SART is introduced by ACR Electronics, Inc. at this year’s OTC. The new search

Ocean Economy Set to Double in Size by 2030

The world’s oceans must be managed well to ensure the potential of an “ocean economy” that was worth US $ 1.5 trillion in 2010.   "Calculations based on the

ICS Criticises 'Prestige’ Judgement by Spanish Court

At a meeting of the International Oil Pollution Compensation Funds (IOPCF) this week, the International Chamber of Shipping (ICS) has strongly criticised the judgement

Maritime Safety

Italian Ship Rescues 26 Migrants off Libya

An Italian merchant ship rescued 26 migrants off the coast of Libya in rough seas and others were feared missing, the Coast Guard said on Saturday. The Coast

ACR to Debut Pathfinder PRO SART at OTC

An important addition to any commercial vessel’s survival gear kit, the Pathfinder PRO SART is introduced by ACR Electronics, Inc. at this year’s OTC. The new search

Panama Canal Dismisses ITF Claims

The Panama Canal has dismisses claims by the International Transport Workers’ Federation (ITF) that questions industry standards and the operation of the Expanded Panama Canal’s new locks.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Offshore Oil Pipelines Port Authority Salvage Ship Repair Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0811 sec (12 req/sec)