Jellyfish

Invading jellyfish have vexed bay residents and scientists. Hardening of shorelines and changing water quality are contributing factors to the increased jellyfish populations.

Clinging Jellyfish

photo of clinging jellyfishThe dime-sized clinging jellyfish (Gonionemus vertens) were spotted at the Jersey shore in 2016. Previously unreported in New Jersey, they may be new invaders here, or just not noticed until now due to relatively low population numbers. This highly venomous species packs a powerful and painful sting that can have serious health consequences.  Learn more >

Sea Nettles

photo of sea nettle Chrysaora fuscescensSea nettles (Chrysaora quinquecirrha), a type of stinging jellyfish, are present in the waters of Barnegat Bay and other coastal waterways of New Jersey. The adult sea nettle is bell-shaped and pale white and often has reddish markings along the surface. It has long thin tentacles.  Learn more >

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