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Eco-moorings help Dorset's seagrass meadows recover in five years, study finds

Divers and researchers find anchor scars in Studland Bay have almost vanished since eco-friendly moorings replaced traditional chain moorings.

newest coverage 1d agosummary written 1d ago4 pieces28 likes & upvotes NewswiresBlueskyMastodon

What to know

  • A five-year University of Southampton study found seagrass bare patches in Studland Bay, Dorset shrank 94% under trial eco-moorings and 65% where traditional chain moorings were removed.
  • Eco-moorings use a helical screw and elasticated riser instead of a dragging chain, eliminating the seabed scouring that traditional anchors and moorings cause.
  • Volunteer divers report rising seahorse numbers alongside other species like conger eels, spider crabs and corkwing wrasse since the moorings were introduced.
  • The Studland Bay Marine Partnership says the findings support expanding eco-mooring schemes to other sensitive UK marine sites.

“The impact has been beyond our expectations, and thanks to robust monitoring and research, we have the science to prove how the eco-moorings benefit seagrass and all the species that rely on it.”

David Brown, Chair, Studland Bay Marine Partnership; National Trust ecologist · The Guardian ↗ · Sep 20

Kira Dunn Researcher, University of SouthamptonDavid Brown Chair, Studland Bay Marine Partnership steering group; lead ecologist, National TrustKen Collins Emeritus research fellow and diving officer, University of SouthamptonStudland Bay Marine Partnership Coalition of conservationists and boating groups managing the bay

Eco-moorings help Dorset's seagrass meadows recover in five years, study finds
theguardian.com

How it unfolded 2 developments, newest first · click a bar or a number to jump articlesposts

Peak 3 pieces in one hour at Sep 21, 6 AM; 4 pieces over 3 days (2 articles · 2 posts) Sep 21, 6 AM — 3 pieces · 2 articles · 1 post — Newswires 2, Bluesky 1Sep 21, 7 AM — quietSep 21, 8 AM — quietSep 21, 9 AM — quietSep 21, 10 AM — quietSep 21, 11 AM — quietSep 21, 12 PM — quietSep 21, 1 PM — quietSep 21, 2 PM — quietSep 21, 3 PM — quietSep 21, 4 PM — quietSep 21, 5 PM — quietSep 21, 6 PM — quietSep 21, 7 PM — quietSep 21, 8 PM — quietSep 21, 9 PM — quietSep 21, 10 PM — quietSep 21, 11 PM — quietSep 22, 12 AM — quietSep 22, 1 AM — 1 piece · 1 post — Mastodon 1Sep 22, 2 AM — quietSep 22, 3 AM — quietSep 22, 4 AM — quietSep 22, 5 AM — quietSep 22, 6 AM — quietSep 22, 7 AM — quietSep 22, 8 AM — quietSep 22, 9 AM — quietSep 22, 10 AM — quietSep 22, 11 AM — quietSep 22, 12 PM — quietSep 22, 1 PM — quietSep 22, 2 PM — quietSep 22, 3 PM — quietSep 22, 4 PM — quietSep 22, 5 PM — quietSep 22, 6 PM — quietSep 22, 7 PM — quietSep 22, 8 PM — quietSep 22, 9 PM — quietSep 22, 10 PM — quietSep 22, 11 PM — quietYesterday, 12 AM — quietYesterday, 1 AM — quietYesterday, 2 AM — quietYesterday, 3 AM — quietYesterday, 4 AM — quietYesterday, 5 AM — quietYesterday, 6 AM — quietYesterday, 7 AM — quietYesterday, 8 AM — quietYesterday, 9 AM — quietYesterday, 10 AM — quietYesterday, 11 AM — quietYesterday, 12 PM — quietYesterday, 1 PM — quietYesterday, 2 PM — quietYesterday, 3 PM — quietYesterday, 4 PM — quietYesterday, 5 PM — quietYesterday, 6 PM — quietYesterday, 7 PM — quietYesterday, 8 PM — quietYesterday, 9 PM — quietYesterday, 10 PM — quietYesterday, 11 PM — quiet 1–2
Sep 22yesterdaynow · 12:58 AM ET
  1. 2

    Public shares the findings as rare good environmental news

    Social media users amplify the study, highlighting seagrass's role in carbon storage and coastal protection.

    “Good news! Dorset’s #seagrass meadows are recovering thanks to “eco moorings” designed to prevent the seabed being ripped up.”
    — @ecameron.bsky.social
    • ecameron.bsky.social

      Good news! Dorset’s #seagrass meadows are recovering thanks to “eco moorings” designed to prevent the seabed being ripped up. Seagrass meadows are one of the world’s most valuable ecosystems- as well as supporting creatures such as seahorses, they store carbon & help protect coastlines from erosion.

      ecameron.bsky.socialBluesky2d ago27▲view on Bluesky ↗
  2. 1

    Study finds seagrass scars shrank up to 94% under eco-moorings

    Kira Dunn's University of Southampton master's research, released via the Guardian, shows bare patches in the eco-mooring trial area shrank by an average of 94% between 2021 and 2025, and by 65% in the area where chain moorings were removed in 2023.

    “The results clearly show that seagrass is recovering in areas where physical disturbance has been removed. It’s incredibly encouraging to see how quickly this important habitat can regenerate when given the opportunity.”
    — Kira Dunn
    1. 2 outlets ‘Incredibly encouraging’: healing the scars of traditional anchors in Dorset’s seagrass meadows

      first by Guardian Environment, 2d ago · also Guardian

      1 more headline
  3. background

    Traditional chain moorings removed from a second study area — In a comparison zone, chain moorings that had continued scarring the seabed are taken out, allowing researchers to track subsequent recovery.

  4. background

    Studland Bay Marine Partnership installs trial eco-moorings — Ten trial eco-moorings, using a helical screw and elasticated riser instead of a dragging chain, are installed to stop anchor damage to seagrass.

  5. background

    Studland Bay is designated a marine conservation zone — The bay, home to one of the UK's largest seagrass meadows and protected spiny seahorses, receives marine conservation zone status.