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鲨鱼感应(第2部分):电子鲨鱼阻遏剂

Electroreception – The Weakest Link?

Sharks have an arsenal of senses to help them detect and zone in on their prey, and as discussed inpart 1of this article, ocean users are advised not to pique the interest of a shark by stimulating any of these senses. However, scientists have discovered an area where sharks are vulnerable, and that it is in fact possible to exploit one sensory system – electroreception – to our advantage, without harming the shark.

电子防鲨器是如何工作的?

An electronic anti-shark device, such as防鲨盾,通过发射电子脉冲来阻止鲨鱼,使接近的鲨鱼感到不安。鲨鱼护盾由两个电极组成,当两个电极同时置于水下时,会产生电场包围潜水员。这些电子脉冲干扰了鲨鱼的Lorenzini壶腹,Lorenzini壶腹是鲨鱼口鼻上高度敏感的感觉器官,起着电受体的作用,有助于探测猎物产生的电场。新金沙线上

当鲨鱼接近戴着鲨鱼保护罩的潜水员时,装置产生的电场会新金沙线上引起鲨鱼肌肉痉挛。这种痛苦的感觉使鲨鱼改变航向,离开电子脉冲源(即戴着装置的潜水员),实际上起到了驱鲨剂的作用,保护潜水员免受任何潜在威胁。

Studies on Electronic Shark Deterrent

一些科学研究已经在鲨鱼盾牌电子鲨鱼威慑装置上进行了,当装置被激活时,这种装置作为一种驱鲨剂的有效性得到了支持。In an initial study assessing the effectiveness of an electronic shark deterrent (conducted on the pioneer model – SharkPOD – the predecessor of the Shark Shield) scientists found that when the device was activated, the likelihood of a shark taking bait was reduced by 80% (Smit & Peddemors, 2003).

A recent independent study was conducted to assess the effectiveness of the Shark Shield FREEDOM7 electronic shark deterrent on white sharks in the wild, using field experiments that tested white shark responses to both a static bait (natural prey) and a dynamically towed seal decoy. Researchers found that, on average, when the device was activated, sharks did not approach as closely, and took twice as long to take a static bait, while the incidence of a predatory strike on a dynamically towed seal decoy was reduced (Huveneers et al, 2012). The study found that when activated, an electronic shark deterrent affected the behaviour of sharks within a two-meter radius of the device. The study also confirmed that sharks were not initially attracted to the device before being repelled.

防鲨盾Product Options for Divers

防鲨盾offers two products for divers: the FREEDOM7 and the SCUBA7. The FREEMDOM7 comprises an electronic anti-shark device that is housed within a neoprene pocket, which attaches securely to the ankle with a Velcro ankle-strap. The antenna from which the electronic pulses are emitted consists of a 2.2-meter long cable that extends from the ankle-strap, trailing behind the diver/swimmer as he/she swims along, surrounding the user with an electronic field that effectively repels sharks. The SCUBA7 model has an electrode that attaches directly onto a SCUBA tank.

Shark Shield FREEDOM7是一款多功能电子驱鲨剂,可供潜水员和其他海洋使用者使用,如沐浴者、身体寄宿者和皮划艇运动员,让他们安心地享受各种海洋活动。它的多功能性新金沙线上使它成为理想的选择,如果你喜欢浮潜以及水肺潜水,或如果你参加各种其他海洋活动。鲨鱼盾牌潜水器7是专为水肺坦克使用,因此只能用于潜水时,而不是在其他海洋活动。新金沙线上

海洋使用者可以使用防鲨装置长达7小时,然后才需要充电。这些设备配备了声音和视觉警报,当电池需要充电时会闪烁或发出声音。对于希望在海洋上或在海洋中花费更长时间的海洋顽固分子,可以购买备用电池组,使用户可以将耗尽的电池换成充满电的电池,并在第一个电池充电时安全返回水中。

如果你在危险鲨新金沙线上鱼经常出没的水域潜水,一个鲨鱼盾电子鲨鱼威慑装置可能是一个值得添加到你潜水装备上的小玩意——它可以拯救你的生命。

Back to第1部分

出版 Aug. 7,
2014

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鲨鱼盾

electronic shark deterrent

anit shark设备









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  • 田纳西州

    Timur K2014年8月18日下午6:54:35any idea how much they cost?
    回复

  • 田纳西州

    厕所8/29/2014 12:38:07 AMusually betweem 500-1000
    回复

  • 田纳西州

    唐纳德·鲍顿10/27/2019 7:16:13 PMAs soon as I’m not lucky for the first time and it turns out to meet a shark close by, I immediately forget about all these tips)
    回复

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