Quote LIS

Estuaries such as Long Island Sound are among the most valuable ecosystems in the world. The Sound supports diverse marine life, including most of the fish and shellfish we value as food ..."
– Connecticut Sea Grant
Long Island Sound



Moon jellies

Aquar.moon jelly copy

Common Name: Moon jelly

Latin Name: Aurelia aurita

Size/weight: Up to 16 inches in diameter

Range:  Arctic to Florida or Mexican; in the Pacific from Alaska to southern California

Habitat: Floats near surface in offshore waters.

Diet: Small plankton, fish eggs, occasionally other developing jellies.

Predators: Sea turtles, sunfish.

Description: Translucent; recognizable for the four horseshoe-shaped organs in their center and a single row of short, hair-like tentacles around the bell.  Since they’re not really fish, it is more proper now to call them “jellies,” instead of jellyfish.  Moon jellies are only mildly toxic to most people; the sting is likely to cause nothing more than a persistent, itchy rash. But some folks may have more severe reactions.

Conservation Note: An abundant, non-threatened species.

See them in the Jellyfish Encounter exhibit and touch them in our special "Jiggle A Jelly" exhibit! »



Mission: The Maritime Aquarium inspires people of all ages to appreciate and protect the Long Island Sound ecosystem
and the global environment through
living exhibits, marine science, and environmental education.


10 North Water Street          Norwalk, CT 06854          Phone: 203.852.0700         Fax: 203.838.5416

The Maritime Aquarium at Norwalk is a not-for-profit 501(c)(3) corporation


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