Tentacles with stinging cells hang from the bell. Jellyfish have a transparent, gelatinous body and an umbrella-shaped bell called a medusa.
When most Marylanders think of jellyfish, they picture Bay beaches surrounded by globes of milky-white — and stinging — sea nettles. Each stinging cell is like a barb that injects venom into its prey. The stinging cells are called nematocysts. By spring, the polyps develop tiny, floating medusae that are layered on top of one another. Lion’s mane jellyfish are common in the Bay in late November-March.Sea nettles and lion’s mane jellyfish feed on fish, shrimp and comb jellies; moon jellyfish eat planktonGet the latest updates on our work delivered to your inbox.The Chesapeake Bay Program is a unique regional partnership that has led and directed the restoration of the Chesapeake Bay since 1983.© 2020 Chesapeake Bay Program All Rights Reserved Moon jellyfish visit the lower Chesapeake Bay in summer. The lion's mane jellyfish, the world's largest jelly, can grow up to eight feet across in far northern waters. Jellyfish are typically, but not always, clear and they have long tentacles dangling as they pulsate through the murky Bay water.You know when you come across one. Three species of jellyfish can be found in the Chesapeake Bay: sea nettles, Chrysaora quinquecirrha, moon jellyfish or common jellyfish, Aurelia aurita, and lion’s mane jellyfish, Cyanea capillata. The Inside Scoop on the Chesapeake Bay — Adventure.
Softball to volleyball-sized. The world's largest jellyfish, with a bell up to 6 feet wide and tentacles exceeding 100 feet, although it grows much smaller in Chesapeake Bay. Then you feel the sting that doesn’t go away any time soon.Once they arrive, they’re going to hang around until about October. The stinging cells are called nematocysts. Many of these animals, closely related to corals and anemones, are important grazers in the Bay. Sea nettles have a smooth, milky white bell that grows to about 4 inches in diameter. First you’ll notice the tentacles; they feel like hair floating through the water. It can grow 10 to 12 inches in diameter. In the Chesapeake Bay, you’ll most likely come across moon jellyfish — peaceful, pretty, blobby things floating around.Man of War nettles are big and pack a painful brush as they go by.
Summertime cohorts of the nettle include the comb jelly and the moon jellyfish. If that doesn’t work, it might have been a PhYsalia (a man-of-war). Click on the pictures to learn more about the beach.If you get stung by a jellyfish, ChesapeakeBay.com suggests liberally sprinkling a meat tenderizer or baking soda on the hurting area depending on what kind of jellyfish you came across. In the Chesapeake Bay, you’ll most likely come across moon jellyfish — peaceful, pretty, blobby things floating around. The jellyfish for which Chesapeake Bay is widely known in the summer is the Sea Nettle (Chrysaora auinquecirrha). They die after spawning. More than 18 million people live in the Chesapeake Bay watershed. A jellyfish on the beach at 49th street in Virginia Beach, Virginia early in the morning July 27, 2020. But they stay typically in the ocean.The government tries to figure out where they are and provides some prediction in this NOAA Sea Nettles Guidance chart.NOAA actually has a sea nettle prediction website, but it’s usually out-of-service.For a closer look, check out the data being filed from the area bouys.The key to avoiding jellyfish is to find fresh water. But despite this dubious status, jellyfish and their relatives play an integral role in the Chesapeake ecosystem.
A lion's mane jellyfish drifts through Spa Creek in Annapolis, Md., on Jan. 18, 2017. (Photo by Will Parson/Chesapeake Bay Program)A school of Atlantic silverside swims past a sea nettle at Dogwood Harbor in Tilghman Island, Md., on Sept. 1, 2015. The non-stinging comb jellies are actually a distant cousin to the jellyfish. They use their stinging tentacles to entangle, paralyze and capture their prey. The lion's mane jellyfish is sometimes called the "winter jellyfish" and visits the Chesapeake Bay from late November through March. Sorry, your blog cannot share posts by email. Moon jelly fish are also common in the Chesapeake Bay, but they’re generally harmless to people. (Photo by Will Parson/Chesapeake Bay Program)Sea nettle in turbid water. Moon jellies sting, but it’s small hurt.
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