What is the top predator in the ocean besides man?

[Witis]

Explicated? It's a bit late to ask this,

Unfortunately it is.

Did you read that paper I linked to? It wasn't me saying that. They pointed out that makos won't go below a certain oxygen concentration

A study of 2 sharks, 114 cm (baby) and 191cm (adolescent) is hardly enough evidence to make that conclusion; moreover, they even presented data that the sharks did swim in very low oxygenated waters where levels were less than 1.5 ml O2/L for 20 minutes meaning that the study actually indicated that sharks can tolerate low oxygenated waters. Moreover the paper goes on to say that while it used to be thought that highly aerobic fish such as billfish and tuna had a lower tolerance of 3.5 ml O2/L "recent information from archival tagging indicates that many highly aerobic tuna and billfish species, such as bigeye tuna (Thunnus obesus), yellowfin tuna, and swordfish, are capable of occasional deep vertical excursions that can expose them to oxygen concentrations below 1.5 ml/L." As a result I am not even convinced that low oxygen concentrations are a problem for highly aerobic fish and sharks.

Interesting link, but I don't see how it is relevant to the jaw question.

Sometimes a picture is worth a thousand words. Structurally it is almost identical to the jaw of a Great White Shark meaning there should be no problems biting anything larger than itself.

Frankly, it seems like the nose of the mako would prevent it from being able to bite a large whate unless it approached from a very peculiar angle.

Not sure what you mean, see the dead Makos at the bottom of the link I posted to see that the nose is not very large and would not obstruct feeding in any way meaning they should be able to feast on whales of any size.

I have never been unhappy about learning something new in this fashion. It always leads in different directions. Until you started this thread, I had no opinion as to whether sharks ate whales or vice versa. Now, while I still feel that several sharks and a few whales are top predators in the ocean, I'm pretty well convinced that predation between orcas and mako sharks is entirely in one direction, with orcas being about the only animal that eats adult makos (the young of every species is prey to lots of other species).

Don't forget fish such as Wahoo and tuna or other similarly fast fish with teeth strong enough to cut through mammal flesh capable of cooperating to devour Orcas and even Blue whales if found in large enough concentrations. Then you have to go up the food chain to get to the sharks and then to the apex shark which is almost certainly the Mako. Also the Catchalot is another potential Orca predator theoretically capable of using the largest teeth in the animal kingdom, a weight advantage, and great deep diving abilities to ambush the Orcas from below.

Nothing wrong with you chaning my statement, as I believe the model to be correct

I can't disagree with you there Shaggy.

By the way, are you interested in getting in contact with shark researchers to confirm/refute your model, or do you just want to leave it in the realm of armchair determination? It's probably a bit much to pursue it into the academic realm unless you intend to either make a career out of it (I have no idea what you do, or even how old you are), or intend to try to make money from it. On the other hand, I would guess that most shark researchers would be happy to talk about it.

At this point I am happy with it as is thank you Shaggy.