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 Reporter July 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

NOIA Applauds RI Offshore Wind Project

National Ocean Industries Association (NOIA) president Randall Luthi issued a statement congratulating “steel in the water” for Deep Water Wind’s Block Island Wind Farm,

BTP Handles Millionth Container

Brazil’s newest container terminal hits a series of efficiency milestones   Brasil Terminal Portuário (BTP), Brazil’s newest container terminal in the Port of Santos,

SBM Offshore Completes $1.55 bln FPSO Financing

SBM Offshore announced it has today completed the project financing of FPSO Cidade de Saquarema for a total of $1.55 billion, marking the largest project financing in the company's history.

Technology

ABS Grants AIP for Jensen’s LNG ATB Design

A Jensen Maritime-designed, liquefied natural gas (LNG)-bunkering articulated tug-barge (ATB) has been granted approval in principle (AIP) by classification society American Bureau of Shipping (ABS).

SENER Presents on History of Ship Design

The COMPIT annual edition took part this year from May 11-13 in Ulrichshusen, Germany, with the participation of SENER. This event is an International Conference

Canada Commissions Study on Underwater Noise

Green Marine has signed a nine-month contract with Transport Canada to provide insight on underwater noise generated by shipping and its effects on marine life, along with potential solutions.

Marine Science

Canada Commissions Study on Underwater Noise

Green Marine has signed a nine-month contract with Transport Canada to provide insight on underwater noise generated by shipping and its effects on marine life, along with potential solutions.

Joint CIC on Enclosed Spaces to be Launched

The Maritime Authorities of the Tokyo and the Paris Memoranda of Understanding (MoU) on Port State Control will launch a joint Concentrated Inspection Campaign

Seabed Geosolutions Bags Two Contracts

Seabed Geosolutions will soon mobilise for the variation order that was signed today by Abu Dhabi National Oil Company (ADNOC) with CGG to conduct a shallow water seabed survey.

Maritime Safety

New 20kA Surge Protector for 480V

SSL power solutions manufacturer Thomas Research Products (TRP) has introduced a new surge protector for 480V circuits. The FSP3-480-20kA protects LED luminaires from surges up to 20,000 amps.

Vale Coal Stacker Collapses at Mozambique Port

A coal stacker has collapsed at the Mozambique port of Nacala, dealing a blow to Brazilian miner Vale, which is aiming to start coal shipments in the third quarter of this year,

BSEE Tests GoM Response Equipment

The U.S. Bureau of Safety and Environmental Enforcement (BSEE) informs it has recently tested and verified the sound working condition of various response equipment used in the Gulf of Mexico region.

 
 
Maritime Contracts Maritime Security Maritime Standards Naval Architecture Navigation Offshore Oil Port Authority Salvage Ship Repair Shipbuilding / Vessel Construction
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: 0.1365 sec (7 req/sec)