Midwater Sea Jelly

Atolla tenella, a midwater scyphomedusa, as seen under a microscope. View the “Under Arctic Ice” photo essay to learn more.

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Submitted by The Ocean Portal Team on

Glad you enjoy the photos! This jelly, the Atolla, is commonly observed in Arctic basins and lives in deep water. It is common between 900 and 1400 meters, but has been observed between 650m and 2200m. This jelly has 20-30 tentacles with one elongated tentacle. Like many ocean species, some details of this jelly's basic biology are still unknown, such as what it eats and how long it lives.

You can learn more about what scientists do know about the Atolla on the Arctic Ocean Diversity website and the Encyclopedia of Life.

Submitted by Anonymous (not verified) on

too many pics, NOT enough facts.
I try to do a paper and I can't find ANYTHING on the midwater jelly.
The pics ARE cool though!