National Trust Transforms Barges Into New Bird Island Habitat
The National Trust has launched a groundbreaking environmental initiative by developing a bird island in the Blackwater Estuary located in Essex. This innovative habitat is constructed from three decommissioned Thames lighters, which have been sunk and surrounded by sediment. The project not only enhances local wildlife but also recycles historical industrial vessels, making it a significant step towards marine conservation.
Project Overview
The bird island project utilizes around 8,000 cubic meters of sediment. This volume is roughly equivalent to three Olympic swimming pools. A specialized dredge barge will undertake approximately 170 trips from Maldon Harbour to transport the necessary mud to complete the project.
Construction Details
- The three barges range between 20 to 32 meters in length.
- Originally built for transporting goods from the Port of London in the 1950s, holes were cut in their hulls before sinking.
- The barges were filled with sediment for stability, ensuring they remain securely in place to form the new habitat.
Targeted Wildlife
This new habitat aims to attract a diverse array of bird species, including:
- Dunlin
- Curlew
- Lapwing
- Ringed plover
- Little terns
- Avocets
Katy Gilchrist, the Coastal Project Manager at the National Trust, highlighted that this project represents “the ultimate act of marine recycling,” transforming retired vessels into crucial wildlife sanctuaries.
Environmental Benefits
Once fully established, the bird island will provide approximately 0.55 hectares (1.4 acres) of new habitat. This area is comparable to the size of a football pitch. It will act as a refuge for various bird species, particularly those that are declining, offering safety above the highest tides and protection from common onshore disturbances.
Future Expectations
Matt Wilson, the Countryside Manager for the National Trust, expressed aspirations to see a variety of bird species, including oystercatchers, Brent geese, and redshank, utilizing the new sanctuary. Additionally, this initiative aims to reduce erosion of the existing saltmarsh at Northey Island, thereby enhancing the local biodiversity.
The establishment of the bird island not only supports local wildlife but also contributes to carbon storage within the marine ecosystem. As tidal forces continue to influence the saltmarsh, this project is poised to protect the environment and maintain its delicate balance.
