@Peter-CA said:
@rjd9999 said:
Something not yet mentioned is that size matters. Almost all attacks on paddlecraft have been on shorter boats (13’ or less). A longer kayak seems to convey a degree of safety as most hunting animals do not prey on animals larger than themselves.
Probably not much sense of security if the shark is 20+ feet long, but “we need a bigger boat” is not a bad philosophy ;).
Actually, not quite accurate.
in 2014, Canoe and Kayak Magazine ran a series of articles about the great white attacks in California and tried to break down the data to see if one type of boat, color, or whatever was more prevalent in attacks than others. On the whole, their isn’t enough data to say any one type of kayak is more likely to be bitten, but there does seem to be slightly more pedal driven kayaks bitten than the usage numbers would account for.
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In the animal world, size matters. You fend off large predators by making yourself seem larger and by being aggressive. It doesn’t always work, after all, we’ve probably seen the video of a 12’ great white trying to take on a similarly sized orca pup. Mom, however, seemed to feel this was a major breech of protocol and had effortless fun throwing that carcass around. After all, it was barely over 1000 pounds.
There is no reason to assume that this does not work with great whites as well. Animals don’t take on what is perceived as dangerous to them, so size does matter. It isn’t perfect protection and often, the hypothesis goes, larger boats may be perceived as territorial threats and are bumped and sometimes bitten.
The thing is that a 14’ shark thinks it’s the baddest ass in the ocean, until something bigger comes by. A similarly sized kayak may be seen as a sexual or territorial (nobody really knows what triggers bumping/biting in sharks that are not actively feeding) threat and be treated as a competitor. A boat larger than this may stave off that type of challenge from a smaller fish. This does not mean that longer boats aren’t attacked, but the stats (worldwide) show that shorter boats are more likely to be attacked.
This may mean that longer boat = longer shark doing the attack (kind of a selection bias in that the largest sharks may include boats as long as they are as something to challenge).
The question is whether there is actually any proof of this and the answer is, no. Extrapolating what is known about other large predators, however, has proven to provide some accuracy in relation to shark behavior.
Those who feed sharks used to feel that shark intelligence was too limited to associated food at the end of a pole spear with the humans holding that spear. This was found to be an association sharks quickly learn. Sharks and rays, in areas where feeding has occurred, often swim toward SCUBA divers in the region when they enter the water. Attacks have increased in these areas, as well.
The thing is, sharks are as intelligent, agile, powerful, and fast as they need to be to survive. This design (ie. one shared by tigers and great whites) has, over 400 million years has worked exceedingly well. They may well be the most successful group of predators on the planet (if not for the sperm whale and orca, though they are of much more recent design). They (likely) do not attack unless they perceive a distinct advantage in the conflict and this means not attacking something unknown that is larger than themselves.
I stand by my comment that most attacks (I will discard the “almost all”) occur on boats that are 14’ or shorter (as this is the majority of boats, it is a safe statement). I will also stand by my comment that size conveys some degree of protection.
I will also add the caveat that my father saw great whites and tigers try to take a bite out of the side of the Enterprise when he was at sea. He may have been telling me yarns, but on the off chance he was correct, it seems likely that once they reach sufficient size, they may not feel terribly threatened by anything.
Rick