Chrysaora fuscescens

The Pacific sea nettle Chrysaora fuscescens, or West hover sea nettle, is a common planktonic scyphozoan that lives in the eastern Pacific Ocean from Canada to Mexico.

Sea nettles produce a distinctive golden-brown bell with a reddish tint. The bell can grow to be larger than one meter three feet in diameter in the wild, though almost are less than 50 cm across. The long, spiraling, white oral arms as well as the 24 undulating maroon tentacles may trail slow as far as 15 feet 4.6 m. For humans, its sting is often irritating, but rarely dangerous.

Chrysaora fuscescens has proven to be very popular for display at public aquariums due to their bright colors as well as relatively easy maintenance. it is for possible to build polyps and culture Chrysaora in captivity. When reported appropriate aquarium conditions, the medusae do well under captive conditions.

Physiology

Chrysaora fuscescens swim using jet propulsion by squeezing their bell and pushing water behind them, allowing them to swim against currents, although most of the time they prefer to simply float. Sometimes they option up hitchhikers, including small fish and crabs, which hide inside the sea nettle’s bell and may feed on it.

The Chrysaora Fuscescens usage light sensing organs called ocelli to migrate from the deeper waters of the ocean to the surface.