Report a jellyfish sighting

Your sightings contribute to marine research and are essential to monitor jellyfish populations around the UK. Jellyfish are important indicators of change in our seas and we use this data to monitor the health of the ocean.

When did the sighting take place?

Add the date using the following format: DD/MM/YY

Where did the sighting take place?

Exact location of sighting (if possible, use What3words, or the latitude and longitude co-ordinates using Google Maps)

Where were you when you saw the jellyfish?

Where was the jellyfish when you saw it?

How far away was the jellyfish from you?

Estimate the distance in metres

How far was the jellyfish from the shore?

Estimate the distance in metres

What type of jellyfish did you see?

If you aren't sure, check out our UK jellyfish identification guide.

How many jellyfish were there?

Up to 20
21-50
51-100
100+

First name

Surname

Email Address

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Finally, is there anything else you want to add?

We'd love to see photos of your sightings*. You can share them with us at sightings@mcsuk.org or by tagging us on social media using @mcsuk and #JellyfishSighting. Please include the date and location of the sighting so we can match them to your record.