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Marine conservation and biodiversity

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We are responsible for protecting and improving marine habitats and species to promote biodiversity in Welsh seas.

On these pages you can find out more about the species and habitats that are found in our seas and how we protect them, how we’re contributing to a UK and European network of protected sites, and what to do if you find a seal, dolphin, porpoise, whale, basking shark or turtle stranded on our beaches.