These barriers allow a process called “biomanipulation” to turn Hobton Great Broad into a pristine, species-rich wildlife paradise.
Biomanipulation was the second phase of the project, in which about 55,000 cubic meters of sediment was removed and vast lands were suffocated.
Create a wildlife paradise
The project uses sediments to create new wildlife areas and is currently performing the biomanipulation needed to improve water quality.
Broad is currently suffering from a legacy of pollution dating back to the 1960s. As a result, the broadbeds are dominated by damaging algae that prevent light from reaching the beds and impede the growth of aquatic plants.
Effort Natural EnglandThe Environment Agency, water companies and farmers have seen improvements in sewage treatment and agricultural practices. This has improved water quality to some extent, but further action by biomanipulation is needed to give the opportunity to heal Hoveton Great Broad naturally.
Helps restore nature
Biological manipulation brings about positive changes by adding or removing certain species from the ecosystem. This trial-and-error technique has been successfully used around the world.
Approximately 75% of the fish will be transferred from Hudson Bay, which is connected to Hobton Great Broad, to a temporary new home with a wider Broads system.
Removing the fish increases the number of daphnia pulex and eats algae. Over time, this leads to clear water, returning light to the large bed again. This allows a wide variety of aquatic plants to grow again.
These new aquatic plants help stabilize large areas by absorbing nutrients and providing habitats and food for the more diverse wildlife communities to rebuild. This includes more diverse and resilient fish populations.
Permeable biomanipulation barriers are sensitively installed to prevent fish from re-entering the lake while recovery is effective. When the recovery is stable, the fish will be restored.
Decades of pollution reversal
Necessary barriers Permission from the Environment Agency, Granted on October 14, as a result of extensive research and consultation.
The Hoveton Great Broad Restoration Project will work with the Environment Agency to meet the permit requirements. Before setting the date of barrier installation.
Restoration is closely monitored by the project and Natural England, working with the Environment Agency, Bournemouth University As part of a PhD study.
A stakeholder advisory group will be established to help the project benefit from local knowledge of river systems and fisheries management. This will be one of the most important fish surveillance programs ever implemented in Brows.
Hannah Soccer, Area Manager for Norfolk and Suffolk in Natural England, said:
This exciting natural restoration project will reverse the effects of pollution over decades. This will help reestablish Broad’s once-great ecological quality using all proven restoration techniques.
The resulting biodiversity is more resilient to the effects of climate change and secures the future of this important wetland habitat. This is not only for the benefit of nature, but for everyone who enjoys this unique place.
NS Norfolk Broads A unique landscape of lakes and rivers covering over 300 square kilometers.
Hoveton Great Broad is one of the largest of these lakes. It is an important part of the internationally important artificial wetland landscape, supporting more than 11,000 species. This includes 31, which is seen almost exclusively here, attracting 8 million visitors annually.
Internationally important landscape
The historic pollution of population growth and fast-growing agriculture has left its mark. Since the 1960s, Hobton Great Broad has deteriorated to its current “undesirable” state and cannot be fully recovered without support.
The Hoveton Great Broad Restoration Project provides that support.
The efforts of Natural England, the Environment Agency and the water companies have advanced sewage treatment and agricultural practices. As a result, water quality has improved and biomanipulation is now able to restore Broad to its preferred state and return to its former glory.
Hoveton Great Broad Restoration Project European Union LIFE + Nature and Biodiversity Program, Natura 2000, And that National Lottery Heritage Fund..
visit Project website Learn more about work, expansive, and visits to the local nature trails.
An ambitious project to reverse decades of pollution in Norfolk Brows
SourceAn ambitious project to reverse decades of pollution in Norfolk Brows