many sharks, although they do not completely stay in one area, do not swim alot, the nurse shark kinda louges most of hte time, then maybe will move to find food
in fact many sharks, do swim, BUT to search for food, need proof
provide a constant supply of food, and then tag 2 or 3 sharks, with transmitters, tehn see hwo far they go, as long as theer is plenty of food source for them, they generally do not go far at all, and this is true of most species
many speciesa ctually in the waild make a home in a general area, and this revolves around food, and they often do not go far, reef sharks, generally stay in a certain area, raggy toothes, , now your open water species often move muvh more, but you generally find them either near or seeking a food souce, sharks are hunting and eating machines, this is all that they do, hunt and eat, their existance revolves around those 2 aspects
besides, this guyclaims to be a marine biologist, adn asks questions like this, and responds with wierder answers yet, a marine biologist should know a bit mor than that