Blackwater Estuary

The Blackwater Estuary is the estuary of the River Blackwater between Maldon and West Mersea in Essex. It is a 5,538 hectare biological Site of Special Scientific Interest (SSSI).[2][3] An area of 4,395 hectares is also designated a Ramsar Wetland of International Importance,[4][5] and a Special Protection Area[5][6] 1,099 hectares is a National Nature Reserve.[5][7] Tollesbury Wick and part of Abbotts Hall Farm, both nature reserve managed by the Essex Wildlife Trust, are in the SSSI.[3][8][9]

Blackwater Estuary
Site of Special Scientific Interest
Area of SearchEssex
Grid referenceTL940070
InterestBiological
Area5,538.0 hectares
Notification1993
Location mapMagic Map
Designations
Official nameBlackwater Estuary
Designated11 March 1992
Reference no.543[1]

Oysters have been harvested from the estuary for more than a thousand years and there are remains of fish weirs from the Anglo-Saxon era. At the head of the estuary is the town of Maldon, which is a centre of salt production. The other major settlement is the town West Mersea, of Mersea Island, on the northern seaward side. Numerous other villages are on its banks.

Within the estuary is Northey Island which was the location for the first experiments in the UK in 'managed retreat', i.e. creating saltmarsh by setting sea walls back from what are perceived to be unsustainable positions. The area is notable as a breeding area for little tern (Sternula albifrons) and as a transit point for ringed plover (Charadrius hiaticula).

Over-wintering species

The estuary is also the current mooring location for the radio ship Ross Revenge, the home of former pirate station Radio Caroline

See also

References
  1. "Blackwater Estuary". Ramsar Sites Information Service. Retrieved 25 April 2018.
  2. "Blackwater Estuary citation" (PDF). Sites of Special Scientific Interest. Natural England. Archived from the original (PDF) on 8 December 2015. Retrieved 28 November 2015.
  3. "Map of Blackwater Estuary". Sites of Special Scientific Interest. Natural England. Retrieved 28 November 2015.
  4. "Blackwater Estuary (Mid-Essex Coast Phase 4)" (PDF). Joint Nature Conservation Committee. Retrieved 28 November 2015.
  5. "Magic Map". DEFRA. Retrieved 28 November 2015.
  6. "Blackwater Estuary (Mid-Essex Coast Phase 4)". Joint Nature Conservation Committee. Retrieved 28 November 2015.
  7. "Essex's National Nature Reserves". Natural England. Retrieved 28 November 2015.
  8. "Abbotts Hall Farm". Essex Wildlife Trust. Retrieved 7 September 2016.
  9. "Tollesbury Wick". Essex Wildlife Trust. Retrieved 7 September 2016.

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