Wednesday, May 1, 2019

Atolla Jellyfish

We just learned about the Irukandji Jellyfish.

Another type of jellyfish is the Atolla Jellyfish, also called the Atolla wyvillei or Coronate medusa.

The atolla jellyfish live very deep in the ocean, from 1,000 to 4,000 meters deep.

These are very tiny jellyfish, only growing about 170 milimeters wide.
They have about 20 tentacles floating off of their bell, and then one really long one that hangs out trying to trap prey to eat.

Because these jellies are so small, they get eaten a lot by other animals.
When they think they are in danger, they are able to flash their body like a blinking blue light.

When this happens, sometimes a bigger animal will come along and eat the smaller animal that is trying to eat the jelly.
This gets the jelly the nickname of "Alarm Jelly" because it's alarm goes off when it gets scared.

Scientists have copied this flashing blue light and used it to try and get other big deep sea animals to come check it out.

(from: wikipedia - atolla jellyfish)

Creatures of the Deep | Atolla Jelly - oceannetworks canada

Kid Facts - Blast from the past: Lituites Nautilus