What Are Deep Sea Jellyfish
Deep sea jellyfish are gelatinous marine animals that live below the sunlit surface, often at depths of 200 meters or more. They belong to the class Scyphozoa and related groups, and many have delicate bells and trailing tentacles adapted to low light and high pressure.
Habitat and Adaptations
These species inhabit the twilight and midnight zones, where temperatures are near freezing and food is scarce. Many deep sea jellyfish produce their own light through bioluminescence, which helps them attract prey, communicate, or avoid predators in the dark ocean.
Role in the Deep Ocean Ecosystem
Deep sea jellyfish are important predators and prey. They consume small plankton and larvae, and in turn they are eaten by fish, turtles, and other marine animals. Researchers study them to understand deep ocean food webs and how gelatinous animals influence nutrient cycling in the sea. Learn more about jellyfish biology and deep sea research from the Smithsonian National Museum of Natural History.
