Hypothetical situation Colossal squid interaction with white shark

DWhatley

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They haven't found sperm whales in the stomachs of giant squid ... On the other hand the Seattle aquarium lost a lot of small sharks for not having the right answer ...
 

OB

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Izzy;109332 said:
Now to the hypothetical: the shark and the squid meet where they both have all of their strengths. I personally would give the upper hand to the squid based on the fact that the squid can do battle with sperm whales, and they are fairly evenly matched. The great white is definitely not as big as the sperm whale, though it is probably just as good if not more ferocious a predator. I would tend to think that if the squid managed to hook the great white anywhere, that shark would be a gonner, because once the squid has a good grip, it won't let go, and it would take more than one bite by the shark to get the squid, unless it was a perfectly positioned bite, and that would be very very rare.
I have to concur with D, whales and (giant/colossal) squid are not evenly matched: giant and collosal squid are eaten by sperm whales, the damage done in retaliation is only skin deep.

Great white, 3 feet wide, extremely powerful bite...
Colossal squid, 4 inches worth of similar material...

Now, what if Liopleurodon.... :wink:

The biggest factor, is however, behavioural; I expect Mesonychoteuthis to be an ambush predator of sorts, such as Charcharodon. I am not sure how any such beast would fare in a face-off type situation with a continued requirement for sustained aggression, they would simply both disappear into different corners. Based on the scarce evidence regarding M. hamiltoni (none), I put the latter down to speculation on my side :biggrin2:
 

Clem

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bigGdelta;109360 said:
but more importantly who would win in a fight between mr splashy pants and mr grumpy pants?
Depends. How large is Mr. Splashy Pants? 'Cos Mr. Grumpy Pants has some serious reach.

Meso vs. Carcharadon? Accepting the artificiality of the scenario, and all things being equal between individuals near the upper limits of achievable size, I have to think the shark would have the edge, mostly because of the disparities of density and weight. The white shark is much heavier and more solid, 2,300kg vs. 450kg. The shark might well have the sensory edge too, with a more diverse array of prey (and threat) detection organs.

Actually, this does make me think about sleeper sharks and how they might kill Mesonychoteuthis, assuming that the Meso bits found in sleeper sharks weren't scavenged. Perhaps it has something to do with mass, i.e. the shark taking hold of the squid (or the squid taking hold of the shark) and then throwing its weight around until the squid breaks in half.

Clem
 

221extra

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I think the sharks best options are ambush squid have proven themselves to be formiadable aversarys.Against the shark it would be the same the squid has a nasty beak with some estiamated 2500lbs of force its smarter and maby stronger. It could possibly drown the shark. And about the greenland shark I dont think they actually hunt colossals more like scavenging because they dont have any scars on them like the sperm whales have.
 

Tintenfisch

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The greenland shark certainly never encounters Mesonychoteuthis, being a northern Atlantic to Arctic species (while Meso is strictly Antarctic). However, Cherel & Duhamel (2003) examined 36 sleeper shark stomachs and report Meso as comprising a large proportion of the cephalopod prey (16% by number, 52% by mass), with other large prey species being Kondakovia longimana (yay onychoteuthids! Even as prey!), Taningia danae, and Architeuthis dux. C&D call the sleeper shark 'a fish with a sperm-whale-like diet' and 'the second top predator known to rely to a significant extent on giant squids.' However, they also state that '[h]ow sharks catch such giant squids remains unknown because they may either prey on live animals or scavenge on dead individuals.
Does seem unlikely that enough dead/moribund M. hamiltoni, T. danae, K. longimana and A. dux would be all swirling around together to occur so commonly in 36 stomachs though.

Cherel, Y.; Duhamel, G. 2003. Antarctic jaws: cephalopod prey of sharks in the Kerguelen waters. Deep-Sea Research I 51: 17–31.
 

Steve O'Shea

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Shouldn't forget offensive vs defensive.

The Colossal Squid lacks the basic tools to kill a large shark, whale, turtle, porpoise, chunk of cheese, or even Mr Gummy Bear. Last time I looked it didn't carry concealed weapons ... like harpoons, machine guns or knives, or a cheese board, crackers and wine.
 

OB

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The latter, of utmost importance! If the cheesboard would contain a nice piece of "ripe" unpasteurised Chaumes, Münster or Camembert, no great white of any persuasion would be able to resist its lure and gleefully enter the "embrace of death", that is the brachial corona of Mesonychoteuthis! Given sufficient time, even its relatively small beak might be able to get to the shark's spinal chord, eventually. You'd then have to bring A LOT of cheese, 'though :wink:
 

Danno

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Remember a long time ago there was a picture of an Octopus squeezing the guts out of a dog shark (something similar)?

http://www.youtube.com/watch?v=cA8zQw6gDNI


Are squids capable of dishing out squeeze power like an octopus? I thought sharks drowned if they stopped moving? (im a noob, i hope that wasn't a mytho) I have a feeling the answer is going to be no, but I'm curious. I mean just by looking at an octopus, they seem to have a body for constricting but wasn't sure if squids were capable.

*edit* Correct me if I am wrong, but I think there were deep sea photographs of some sort of deep sea squid killing a shark in National Geographic. Having trouble finding it, or maybe I am mistaken?
 

monty

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If you find the national geo pics, please post a link, I don't think we've seen those (that I remember, anyway).

I've heard that sharks need to keep moving for good respiration as well, but I'm not sure it's all sharks, or even that it's been proven completely.

As far as the GPO killing the shark in that example, I've always assumed (admittedly with no evidence) that it didn't kill it by constriction, but rather by severing its spinal cord, either by biting with the beak or twisting it until it broke. Since sharks don't have lungs, and are cartilaginous, I would expect they'd be pretty resisting to constriction.
 

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