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Report your sightings

Reporting the marine wildlife that you see can make a big contribution to managing the SAC. Pen Llŷn a’r Sarnau SAC covers a large area and, as with the marine environment in general, there are still many things we do not know about the marine life that lives here.  If you are out and about on the coast, on the sea or under the sea, you can help improve our understanding about the wildlife of this area by letting us know what you discover.

Please email any interesting pictures or reports to:


A large shoal in Porth Dinllaen 

In the Spring of 2008, Rhys Jones saw this huge shoal of mullet at Porth Dinllaen. That black shadow in the picture isn't seaweed - that was the shoal. 

Mullet shoal Porth Dinllaen

 And here is a close up of those mullet:

Close up of mullet shoal

If you would like to get more involved, The Countryside Council for Wales has put together a booklet with details of where to send your sightings. You can get a free copy of the booklet from the Countryside Council for Wales website.


Thornback Rays - reward given for recaptures!

The Shark Trust, in collaboration with Liverpool Museums and local anglers, has initiated a Thornback Ray tagging project around the Llŷn Peninsular.  There are a number of Thornback Rays tagged with green dart tags around the North Wales coast.

If you capture a tagged animal, please record the following information and contact the Shark Trust on 01752 672020 to claim your £4 reward!

1) Tag identification number (e.g. ST0000)
2) Location, date and time of capture
3) The sex, length, width and/or weight of the ray
4) The depth of the capture

For more information about this project please click here.  For a copy of the poster please click here


Recording Jellyfish

The EcoJel Project is a four year project funded by the European Union Regional Development Fund and is a collaboration between Swansea University (Wales) and University College Cork (Ireland). EcoJel aims to assess the opportunities and detrimental impacts of jellyfish in the Irish Sea. There is a concern that the abundance of jellyfish is increasing globally as a result of climate change and degradation of marine ecosystems under the pressure of human activities. In many places in the world, jellyfish blooms have already proved they can have critical socio-economic impacts e.g. clogging fishing nets, causing mass mortalities of farmed salmon, or blocking the cooling water intake of power stations. They are also suspected to feed on certain fish eggs and larvae and thus may limit the potential recovery of already weakened fish stocks.

EcoJel needs your help…any sighting of a jellyfish is hugely important to this project.

For more information about this project and how to report your sightings please visit  To download an ID card please click here.

Cuttlefish eggs Dragonfly

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