A nearly 1,000-pound great white shark is making quite the splash as researchers track the behemoth ocean-dweller along the Atlantic coast of the United States. The shark known as Ironbound has shown up multiple times in recent weeks on the radar of Ocearch, an organization that keeps data about the ocean. Researchers receive alerts any time a tagged shark breaks the water’s surface, according to the organization. Ironbound’s activity generated an alert on April 28 near the coast of New Jersey. The shark has since been tracked swimming in more southern waters, including on Tuesday, when Ocearc…