We’re asking for views and feedback on the effectiveness of the voluntary no anchor zone (VNAZ) in Studland Bay in 2024. To support our work, please spare some time to complete our survey before it closes on Sunday 19 January 2025.

Take part and complete our survey online.

Now in its third year, the purpose of the VNAZ is to protect the bay’s valuable seagrass beds, and the animals it is home to, from damage from the dropping and weighing of anchors. By taking part you will be helping to improve our understanding of the VNAZ, how it is protecting the site, what’s worked well, and what can be improved so we can ensure Studland Bay continues to be protected in the future. 

MMO continues to support the Studland Bay Marine Partnership and their work to protect and restore the sensitive seagrass habitat at Studland.

Studland Bay: Dorset’s priceless hidden ecosystem

Studland Bay, located on the South coast of Dorset, is renowned for its sandy beaches, sheltered waters, anchorage and stunning views. Hidden below the surface lies a vital seagrass habitat offering numerous benefits to the local community, environment and economy. The beauty of Studland Bay attracts tourists from around the world, providing a boost to the nearby businesses and the local economy. This area also has become a popular destination for school trips, helping to teach children about the geography and wildlife of this invaluable habitat.

People enjoy swimming and snorkelling in the clean water of Studland Bay in part thanks to its underwater seagrass meadows which have an incredible ability to improve water quality by filtering surrounding waters. Additionally, seagrass meadows act as a natural barrier, protecting the coastline from erosion and reducing the impact of incoming waves and storms, safeguarding nearby communities, infrastructure and valuable habitats. Seagrass also contributes to global efforts to combat climate change by capturing and storing significant amounts of carbon, acting as an effective carbon sink.

Seagrass in Studland Bay provides essential habitats for a wide range of marine wildlife, serving as nurseries and feeding grounds for various species, including rare species of seahorse, pipefish and rays. Studland Bay is particularly important to long-snouted seahorse, as it is the only known area in the UK in which they breed. Crustaceans, molluscs and worm species also benefit from the shelter provided by the seagrass, as well as fish species of significant commercial value such as seabream, bass and flat fish.

Seagrass, an important underwater habitat. Credit: Michiel Vos / Ocean Image Bank

The importance of protecting Studland Bay’s ecosystem

By protecting and recognising the seagrass meadows, we ensure a healthier, more resilient coast, a thriving marine environment and a sustainable local economy for generations to come.

The Studland Bay ecosystem is threated by several factors such as climate change, ocean acidification, water quality and the physical impacts of anchors from high levels of recreational boating. Dropping anchors into the seagrass beds can damage and uproot the seagrass (scouring), impacting the many species sheltered by the seagrass. This damage also affects the health and functioning of this habitat, impacting its ability to provide critical services benefitting society, including carbon storage and flood protection.

Seagrass thrives particularly well in certain conditions, including relatively sheltered areas. The sheltered conditions which make the southern part of Studland Bay an area particularly suitable for seagrass but also an attractive anchorage. This is an unfortunate coincidence, as we also know that anchoring on the seagrass beds results in damage to the beds, reducing its ecological condition.

How to prevent anchor damage

Seagrass is easily damaged by the dropping and weighing of boat anchors, which can drag along the seabed, expose the roots, leave large anchor scars, fragment the habitat and permanently damage the seagrass beds beyond recovery.

The urgent need to protect and safeguard this type of habitat for the future is becoming increasingly important due its vital role in absorbing carbon from surrounding seawater and stabilising the seabed, which can help to reduce coastal erosion and mitigate the impact of climate change.

We ask you to please anchor outside the voluntary no anchor zone, located off South Beach out to Harry Rocks, where possible.
Ecomoorings, which do not damage the seagrass beds, are also available in the nearby area.
We also ask you to take extra care when moving in the nearshore area of South Beach. This is a known habitat for the legally protected long-snouted seahorses, (also known as spiny seahorses).

MMO expects seagrass extent to vary across seasons, as such we ask you to be mindful of this and anchor away from seagrass.

Safety at Sea

We recognise that this area is important safety refuge for vessels. Safety of life at sea will always come first. The right to anchor under emergency conditions, or to avoid a genuine emergency situation, within Studland Bay will continue.

Studland Bay MCZ and voluntary no anchor zone

The Studland Bay Marine Conservation Zone (MCZ) was formally designated on the 31 May 2019 and covers 6 nautical miles along the Dorset coast. The MCZ protects 4 designated features: the seagrass beds, intertidal coarse sediment, long-snouted seahorse (also known as spiny seahorses) and subtidal sand.

It’s MMO’s responsibility to protect these designated features by managing non-licensable marine activities.  Based on the best available evidence and advice from Natural England, MMO determined that anchoring is not compatible with consideration of the objectives of Studland MCZ, due to the physical damage it can cause to seagrass beds. Management is therefore necessary to support the recovery of the seagrass beds to favourable condition.

After consultation with the boating community, partners and other users of the bay, the voluntary no anchor zone (VNAZ) was introduced in 2021. The seagrass beds located off South Beach and Middle Beach receive the majority of anchoring within the site, therefore MMO has decided to introduce a voluntary no anchor zone into this main seagrass bed within Studland Bay MCZ to limit the damage from anchoring and help in the recovery of the seagrass habitats and species.

MMO understands that the voluntary no anchor zone (VNAZ) has an inevitable impact on the boating community. We must nevertheless balance this against MMO duties to protect and enhance our marine environment for current and future generations.

The shapefiles for the zones can be downloaded via the links below. Please also see the Studland Bay MCZ Habitat Protection Strategy for additional maps displaying these zones, coordinates and further information.

MMO has also worked to incorporate Studland Bay VNAZ coordinates into several electronic charts, which we know are widely available for boating community.

Studland Bay Marine Partnership

The Studland Bay Marine Partnership (SBMP) is an organisation made up of local stakeholders including conservation and boating groups, academics, grassroots community groups and local businesses.

The group has worked tirelessly to find solutions that meet the needs of local people and recreational boaters, enabling them to continue to enjoy the bay, whilst protecting and restoring the sensitive seagrass habitat at Studland. This includes fundraising initiatives to aid with the installation of advanced ecomoorings within the bay, providing a sustainable alternative to anchoring in the VNAZ for those coming to the area.

MMO is committed to working closely with partners, including the Studland Bay Marine Partnership to ensure the protection of the seagrass beds and other protected habitats and species in Studland Bay.

Environmentally friendly moorings

MMO is supporting the work of Studland Bay Marine Partnership with the delivery of their ecomooring project. There are currently 43 ecomoorings installed in the bay. These provide an environmentally friendly alternative to regular anchors, which can damage the seabed.

These moorings involve a helical screw anchor being secured in the seabed. An elastic rode is then attached, connecting the anchor system with the mooring buoy. The elastic rode replaces the heavy chain, meaning that none of the equipment scours the seagrass around it. From the stakeholder survey included in Studland Bay Voluntary No Anchor Zone: 2022 Review we know that many of stakeholders are yet to try using ecomoorings, however the majority of boaters, who had used ecomoorings, said the moorings provide a hassle-free option, saving them the trouble of having to drop their own anchors.

Guidance on obtaining license for private moorings

MMO understands that advanced mooring systems are an important alternative to anchoring, in order to support sustainable use of the area and effectiveness of the voluntary no anchor zone.

The installation of moorings is managed through the MMO marine licensing process. The installation, maintenance and removal of both temporary seasonal moorings and permanent moorings would require an application to MMO for determination. Please see our website for further information on the marine licensing process, timescales and associated fees.

Make a marine licence application - GOV.UK (www.gov.uk)

The Studland Bay MCZ Habitat Protection Strategy provides guidance to those interested in applying for moorings in Studland Bay and advises the use of advanced mooring systems to protect the seagrass beds in the site.

If you require any support with the application system, please contact our support team on [email protected]

Management Approach

The Studland Bay MCZ Habitat Protection Strategy provides an overview of MMO’s management approach for marine non-licensable activities in Studland Bay MCZ. In addition, guidance is provided regarding installation of moorings. A summary is provided below.

MMO introduced a phased voluntary approach for the management of anchoring in Studland Bay MCZ over 2021 and 2022.

Phase 1 commenced on 17 December 2021. An interim voluntary no anchor zone (VNAZ) was introduced.
Phase 2 commenced on 1 June 2022. In phase 2, the interim zone was replaced by a larger VNAZ to protect the majority of the of seagrass habitat in the Bay.
Phase 3 We continue to highlight the voluntary measures, engage the community and encourage boat users to not anchor in the zoned area to protect the designated habitats and species which are sensitive to anchoring damage.

Other marine non-licensable activities

A monitoring and control plan has been put in place for all the other marine non-licensable activities which were taken forward for assessment. No further management is being introduced for other activities at this time.

Voluntary no anchor zone review

MMO has now completed the 2023 Review of the VNAZ following its second year since implementation. This enhances our understanding of how this measure is protecting the site, what’s worked well, and what can be improved so we can ensure the area continues to be best protected for the future.

Following our latest review MMO remains committed to working together with the community to deliver activities and raise awareness for the importance of seagrass habitat protection in Studland Bay throughout 2024.

Stakeholder Engagement

October 2020 - MMO call for evidence

MMO sought stakeholder views on the draft assessment of the impacts of marine non-licensable activities in Studland Bay MCZ and proposed management options. Following a review of all feedback received from the call for evidence, it was concluded that management measures would be developed for anchoring due to the pressure it causes at current levels towards the designated features of the MCZ. The Studland Bay MCZ Decision Document detail MMO’s response to feedback received.

March 2021 – formal engagement period

Dorset Coast Forum facilitated a formal engagement period for MMO to gain further input from stakeholders about three draft anchoring management options. The purpose of this was to inform the approach to managing anchoring in Studland Bay MCZ and to ensure the necessary level of environmental protection while minimising impacts on users of the sea. A summary of the engagement can be found on the Dorset Coast Have Your Say website.

September 2021 – Studland Bay MCZ Habitat protection Strategy launch

MMO announced the voluntary approach to stakeholders. MMO engaged with representatives from key stakeholder groups to share information and invite feedback.

Current engagement activities 2023

MMO has continued to engage with, and gather input from, stakeholders since the launch of the strategy. This has been through visits to boat clubs and marinas in the Poole area, on water patrols in Studland Bay and distribution of leaflets.

These activities remain ongoing and will continue for the future. Please follow us on social media for the latest updates. Twitter, Facebook, LinkedIn and Instagram.

Contact us

Please contact us if you have any queries, feedback and/or suggestions for us in 2023: [email protected]

Published 18 February 2021
Last updated 5 June 2023 + show all updates

5 June 2023
The Studland Bay Voluntary No Anchor Zone 2022 Review has now been published.
1 February 2023
Small update
17 June 2022
New coordinates sheet
1 June 2022
Studland Update
29 March 2022
Studland Leaflet
17 December 2021
Content changes in line with date change
1 December 2021
Page updated following the introduction of a phased voluntary approach for the management of anchoring in Studland Bay Marine Conservation Zone (MCZ).
23 September 2021
Updated page with Stakeholder Meeting 10 September 2021
16 September 2021
name change for documents
21 April 2021
Updated content in line with progress in the call for evidence.
18 February 2021
Amends
18 February 2021
First published.

Managing marine non-licensable activity in Studland Bay Marine Conservation Zone

Documents

Studland Bay Voluntary No Anchor Zone: 2023 Review