Atlantic sea nettles, like other jellies, obtain oxygen by absorbing it across their body’s surface. Their gentle pulsating movement ensures that they are always in contact with oxygenated water. It also means that these jellies are frequently moving their long tentacles through the water column. Its these tentacles that catch zooplankton, small crustaceans, worms, mosquito larvae, and many other types of prey, making the Atlantic sea nettle and effective hunter.
That does not mean these jellies are without predators. Sea turtles, large ocean fish, other jellies and even humans prey upon Atlantic sea nettles and other types of jellies.
The Atlantic sea nettle population has not been evaluated by the International Union for Conservation of Nature (IUCN). As a result, the current status of the population is unknown.