This site uses cookies to improve your experience and to provide services and advertising. By continuing to browse, you agree to the use of cookies described in our Cookies Policy. You may change your settings at any time but this may impact on the functionality of the site. To learn more see our Cookies Policy.
Dublin: 15 °C Tuesday 18 June, 2019

There are hundreds of glow-in-the-dark jellyfish off the coast of Mayo

They may sting your face off, but they’ll look pretty when they glow at night.

WITH THE WEATHER turning colder, it’s unlikely that many people were planning a dip in the Atlantic Ocean this weekend.

However, if you live in the west, there are now two reasons not to go swimming. Or, more accurately, several hundred.

The crew of the Ballyglass RNLI lifeboat sent us these pictures of their boat surrounded by hundreds of jellyfish in Broadhaven Bay.


The jellyfish have been swept here by a combination of winds and currents and they glow in the dark.

Yes, they glow in the dark.

A spokesperson for the Irish Marine Institute explains:

“It is Pelagia noctiluca a jellyfish which is widely distributed throughout temperate and tropical oceans. It is normally an offshore species but can be swept ashore by a combination of winds and currents, sometimes in very large numbers. It is often commonly referred to as the mauve stinger.

As its name suggests (noctiluca) it can phosphoresce (glow) in the dark. Large numbers of it have been reported along the west coast of Ireland recently.


Pics via Ballyglass Lifeboat

Read: There is at least one camel on the loose in Finglas

  • Share on Facebook
  • Email this article

Read next: