A blueprint has been launched to safeguard one of the country’s most ecologically valuable and vulnerable marine habitats which is found in Cornish waters.
Maerl beds, formed by slow-growing coral-like seaweed, are ancient ecosystems supporting hundreds of marine plants and animals and store significant amounts of blue carbon.
But despite its importance, maerl remains under-recognised and under-protected.
Cornwall Council, in partnership with Natural England, Blue Marine Foundation, University of Exeter, University of Plymouth and Cornwall Wildlife Trust, has now released a report that sets out how to safeguard the important marine species over the next five years.
The Cornwall Maerl Conservation Action Plan identifies the duchy as a national leader in marine nature recovery and calls for immediate, coordinated action to protect maerl beds for future generations.
It focuses on:
· Mapping and monitoring maerl beds
· Improving water quality
· Regulating damaging activities
· Strengthening legal protections
· Exploring restoration and climate resilience strategies
· Engaging communities
The plan is the result of the world’s first dedicated maerl forum held at the University of Exeter’s Penryn campus Cornwall earlier this year.
It brought together scientists, policymakers, conservationists, and community representatives.
Loic Rich, environment and climate change portfolio holder for Cornwall Council, said:
“This report is a milestone for marine conservation in Cornwall. It reflects the passion, expertise, and collaboration of our community and partners.
“Maerl is Cornwall’s ‘Celtic coral’, a habitat of extraordinary beauty, ecological and national importance, and now we have a clear path to protect it.”
David Slater, south west regional director for Natural England, said:
“Maerl is one of Cornwall’s most extraordinary marine habitats, but it’s still not widely known or understood. To protect it for future generations, we need clear and compelling evidence that shows its ecological and economic value - evidence that speaks to local communities, decision-makers and those who rely on the sea.
“Working together is essential. Whether you're a scientist, regulator, fisher or conservationist, collaboration is the key to restoring and safeguarding our marine environment.”
Story posted October 22, 2025