Juveniles are usually found swimming under patches of "Sargassum" algae. Hatchling loggerhead turtles live in floating mats of "Sargassum" algae. They eat kelp, rockweed, sargassum and some types of red algae. Juvenile turtles tend to live in floating sargassum seaweed beds for their first years. Swells from the storm deposited significant amounts of "Sargassum" along the shores of Anegada. This "Sargassum" is known to be a highly invasive species. Several factors could explain the proliferation of "Sargassum" in the area in recent years. Sargachromanol G, an extract of Sargassum siliquastrum, has been shown to have anti-inflammatory effects. In the absence of sargassum, young sea turtles feed in the vicinity of upwelling "fronts". One of such observation was the adaptation of "Physalia" to windrows containing entangling "Sargassum". Many hatchlings use "Sargassum" in the open ocean as protection until they reach . "Sargassum" species are also cultivated and cleaned for use as an herbal remedy. Prey found in "Sargassum" mats may include barnacles, crab larvae, fish eggs, and hydrozoan colonies. Larvae and juveniles live pelagically, often under sargassum mats or jellyfish until they move inshore. Some "Sargassum" seaweeds are planktonic (free-floating).