Shark Shield

To discuss safety issues and their direct affects on kayaks and kayak fishing. Do it but do it safely!
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FatherOfMany
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Thu Sep 22, 2016 7:46 am

What do you think of attaching one of these to the bottom of your kayak?

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Casualtyward
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Thu Sep 22, 2016 9:58 am

Seems a little OTT, but if that's what makes you comfortable, why not?
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MikeAqua
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Thu Sep 22, 2016 11:35 am

I'd be more concerned by the electromagnetic field generated by one of those than the sharks it protects you from.
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Hairy Little Dwarf
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Thu Sep 22, 2016 1:13 pm

Wouldn't whacking out a powerful EM field attract them from further away in the first place?

Plenty of sharks up here, can think of only one fin sighting that concerned me.

(It's a giggle watching people paddle, blissfully unaware that they are being followed by a curious dorsal)
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MikeAqua
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Thu Sep 22, 2016 2:32 pm

Sharks seem to dislike the shark shield.

Because they have sensor cells that pick up electrical current it's like they have suddenly swum into a wall of EM stimulation. They flinch and turn around instantly.

What I don't know is whether sharks would be come accustomed to this field with subsequent passes.
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Hairy Little Dwarf
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Thu Sep 22, 2016 2:48 pm

MikeAqua wrote:Sharks seem to dislike the shark shield.

Because they have sensor cells that pick up electrical current it's like they have suddenly swum into a wall of EM stimulation. They flinch and turn around instantly.
Yeah, I get that, although it'll be producing a very large weaker field which at some arbitrary distance will be detectable and at a "Ooo...What's that?" level in their cute little rubbery noses. Won't be until they get close that the field gets uncomfortable. I seem to remember anecdotal info on one of the Aussie sites that it wasn't particularly effective

If it's big enough and hungry enough, it's not going to worry about a bit of spice anyway so I'll save my money :D :D
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.................... "Flying Mango".......... [Up for sale, $1400]

Phoenix Hornet - Specialty Assault Craft

Dad! Dad! Look at his fish! It's way bigger than anything you've EVER caught! - Nosey 7-8yo boy on opening my icebox to father strapping down his $XXX Stabicraft 759(?) - Gold. Pure Gold.

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MikeAqua
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Fri Sep 23, 2016 8:32 am

In the videos the sharks 'flinch' and instantly change direction.

But thinking about it, that's when the shield is switched on when the shark is already close so a sudden spike in EM intensity, not a gradual increase in intensity as they get closer.

Presumably there will be an EM stimulation sharks find unbearable, like there is for us with sound/light etc. But that would probably be quite close to the wearer.

I've spoke to some abalone divers in Australia who swear by shark shield.
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Mental
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Fri Sep 23, 2016 10:03 am

When Jim Sammons was last here he had one and used it after we got sharked fishing for kingfish, did we get re-sharked no but was it entirely down to the Shark Shield, who knows..?
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dedant
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Fri Sep 23, 2016 3:06 pm

Mental wrote:When Jim Sammons was last here he had one and used it after we got sharked fishing for kingfish, did we get re-sharked no but was it entirely down to the Shark Shield, who knows..?
Could be good peace of mind when you fish with your feet in the water all the time like he seems to :)
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enmei
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Sun Sep 25, 2016 10:32 am

I curious to know how it would effect some of the other fish also, would it scare off the snapper and kingfish to? Would be kinda pointless to go out with it and not catch anything.

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FatherOfMany
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Sun Sep 25, 2016 1:00 pm

Aparrently it's only sharks and rays that have those electric receptors, though I've seen videos of kingfish being all lovie dovie to the bottom of a kayak, supposedly at a result of the FF.

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----------------------------------------------------
Old Town Predator XL
OK Tetra 12
Old Town Predator 13
OK Prowler Elite 4.5 #1, OK Prowler Elite 4.5 #2

PB: Snapper=66cm, J.D.=39cm, Gurnard=38cm

VHF Callsign: ZMW 9858

Kayak Fishing Auckland

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Hairy Little Dwarf
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Sun Sep 25, 2016 2:33 pm

Kingies do that to any floating object I think - Had them whacking the Phoenix before I got a FF fitted.
Image
.................... "Flying Mango".......... [Up for sale, $1400]

Phoenix Hornet - Specialty Assault Craft

Dad! Dad! Look at his fish! It's way bigger than anything you've EVER caught! - Nosey 7-8yo boy on opening my icebox to father strapping down his $XXX Stabicraft 759(?) - Gold. Pure Gold.

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