Langstone Harbour

Langstone Harbour is a 2,085.4-hectare (5,153-acre) biological Site of Special Scientific Interest in Hampshire.[1][2] It is an inlet of the English Channel in Hampshire, sandwiched between Portsea Island to the south and west, Hayling Island to the south and east, and Langstone to the north. It is part of Chichester and Langstone Harbours Ramsar site,[3] Special Protection Area[4] and Nature Conservation Review site, Grade I.[5] Parts of it are in Solent Maritime and Solent and Isle of Wight Lagoons Special Areas of Conservation.[6][7] Three areas are Local Nature Reserves, Farlington Marshes[8] West Hayling[9] and The Kench, Hayling Island.[10] Two areas are nature reserves managed by the Hampshire and Isle of Wight Wildlife Trust, Farlington Marshes[11] and Southmoor Nature Reserve[12]

Langstone Harbour
Site of Special Scientific Interest
Area of SearchHampshire
Grid referenceSU 695 025[1]
InterestBiological
Area2,085.4 hectares (5,153 acres)[1]
Notification1985[1]
Location mapMagic Map

West of Portsmouth is Portsmouth Harbour and the three linked harbours are important recreational and conservation areas as well as supporting commercial fishing and shipping. It is administered by the Langstone Harbour Board.[13] The eastern boundary with Chichester Harbour is defined by a historic causeway known as the wade way, which was originally the only crossing between Hayling Island and the mainland. It is now impassable, having been cut in two by a deep channel for the Portsmouth and Arundel Canal in the 1820s (for further information see Langstone).

Islands

Langstone Harbour contains a number of islands; Baker's Island (SU694035), North Binness Island (SU692046), South Binness Island (SU698031) and Long Island (SU701041). These are subject to erosion and during the 1990s a seven-year archaeology project took place[14] before their history was lost to the seas. There are two smaller islands: Round Nap Island which is connected to South Binness Island by a tidal causeway[15] and Oyster Island.

History

Langstone Harbour was originally a river valley of one of the tributaries flowing into the then River Solent.[16] With the end of the last ice age sea levels rose until sometime between 4000 and 3500BC the harbour took on the form it would have until the 18th century.[16]

For much of its history the harbour has been an area of salt production.[17] The Domesday Book records three salterns around the harb-our and by the early 17th century a saltern at Copnor was well established.[17] Here a large shallow area of the harbour meant that even without further improvement salt could be extracted from the area after each tide.[17] The Copnor saltern ceased production in 1800 but salt production continued elsewhere in the harbour until 1933.[18]

The artificial lagoon built on the remains of the old oyster beds

In 1771 Farlington Marshes were reclaimed from the north of the harbour.[19]

Oyster farming began in the harbour around 1820 with winkle and clam cultivation probably starting around much the same time.[20] Production ceased in the 1950s.[21] An attempt at oyster farming in the 1980s soon failed.[22] In 1997 work began to turn the remains into an artificial lagoon.[22] The lagoon which has a small island at the centre has, as planned, become a breeding ground for birds, particularly little terns.[23]

During the Second World War the harbour was used as Starfish decoy site to misdirect German bombers.[24]

Wildlife

The harbour is home to an extensive range of marine and bird life. Fifty species of fish have been found in the harbour.[25] The harbour's bird life is even richer, the harbour hosting a wide range of species some of which are represented by over 10,000 individuals.[26] This is in a large part due to the Royal Society for the Protection of Birds acquiring harbour's islands and a number of tidal areas in 1978 and turning them into bird sanctuaries.[26] As a result of the number of birds the harbour as become a popular spot for bird watchers.[26]

Seals occasionally appear in the harbour in winter.[26] American hard-shelled clams have been found in the harbour spreading from an initial release site on the lower River Test.[27] The harbour is also home to a population of Sand smelt.[28]

On 31 July 2008 a 26-foot (8-metre), 7-tonne northern bottlenose whale was beached on a mudflat in Langstone Harbour. A rescue operation was carried out to try to save the whale off the south coast of England and managed to free the whale from mudflats using a special lifting pontoon but it remained in shallow water. A decision was made to give the whale a lethal injection as a blood test revealed that it was suffering from kidney failure. If the whale swam into deeper water it could take up to two days to die naturally from renal failure. The whale ended up about 3,000 miles (4,800 km) off course due to its illness.[29][30][31]

Wrecks
The Phoenix breakwater wreck

There are several boat wrecks in the harbour.[32] One of these is a tug dating from 8 May 1941.[32][33] The tug named the Irishman was sunk by a magnetic mine and now rests partially submerged at low tide.[32] A slightly older wreck dating from 1926 is a Bucket dredger named the Withern.[32] Of unrecorded age is the wreck of the Excelsior, an 80-foot-long barge.[32] The harbour also contains a wrecked landing craft that rests with its bows almost permanently above the surface.[34]

Close to the entrance of the harbour, there is a wrecked Phoenix breakwater type C.[34] It was originally constructed to form part of a World War 2 Mulberry Harbour.[34]

Various artefacts have been found from the prison hulks that were kept in the harbour during the Napoleonic wars.[35]

gollark: It's an older high-power one.
gollark: Also no crypto acceleration.
gollark: Probably half the performance or worse, plus it only has the A72s and no A55s like this.
gollark: It has A72s, so bad.
gollark: I'm not sure what Rockchip said.

References
  1. "Designated Sites View: Langstone Harbour". Sites of Special Scientific Interest. Natural England. Retrieved 13 May 2020.
  2. "Map of Langstone Harbour". Sites of Special Scientific Interest. Natural England. Retrieved 13 May 2020.
  3. "Designated Sites View: Chichester and Langstone Harbours". Ramsar Site. Natural England. Retrieved 6 April 2019.
  4. "Designated Sites View: Chichester and Langstone Harbours". Special Protection Areas. Natural England. Retrieved 6 April 2019.
  5. Ratcliffe, Derek, ed. (1977). A Nature Conservation Review. 2. Cambridge, UK: Cambridge University Press. pp. 3–4. ISBN 0521 21403 3.
  6. "Designated Sites View: Solent Maritime". Special Areas of Conservation. Natural England. Retrieved 23 April 2020.
  7. "Designated Sites View: Solent and Isle of Wight Lagoons". Special Areas of Conservation. Natural England. Retrieved 23 April 2020.
  8. "Designated Sites View: Farlington Marshes". Local Nature Reserves. Natural England. Retrieved 23 April 2020.
  9. "Designated Sites View: West Hayling". Local Nature Reserves. Natural England. Retrieved 23 April 2020.
  10. "Designated Sites View: The Kench, Hayling Island". Local Nature Reserves. Natural England. Retrieved 23 April 2020.
  11. "Farlington Marshes". Hampshire and Isle of Wight Wildlife Trust. Retrieved 24 April 2020.
  12. "Southmoor". Hampshire and Isle of Wight Wildlife Trust. Retrieved 30 April 2020.
  13. Harbour Board
  14. Summary of archaeology
  15. Adam, Neil J; Momber, Gary (2000). "South Binness Island". In Allen, Michael J; Gardiner, Julie (eds.). Our Changing Coast a survey of the intertidal archaeology of Langstone Harbour Hampshire. York: Council for British Archaeology. pp. 104–5. ISBN 1-902771-14-1.
  16. Tweed, Ronald (2000). A History of Langstone Harbour and its environs in the County of Hampshire. Dido Publications. pp. 16–17. ISBN 0-9533312-1-0.
  17. Tweed, Ronald (2000). A History of Langstone Harbour and its environs in the County of Hampshire. Dido Publications. pp. 28–29. ISBN 0-9533312-1-0.
  18. Tweed, Ronald (2000). A History of Langstone Harbour and its environs in the County of Hampshire. Dido Publications. p. 34. ISBN 0-9533312-1-0.
  19. Fontana, Val; Fontana, Dominic (2000). "A brief historical survey". In Allen, Michael J; Gardiner, Julie (eds.). Our Changing Coast a survey of the intertidal archaeology of Langstone Harbour Hampshire. York: Council for British Archaeology. p. 82. ISBN 1-902771-14-1.
  20. Tweed, Ronald (2000). A History of Langstone Harbour and its environs in the County of Hampshire. Dido Publications. p. 50. ISBN 0-9533312-1-0.
  21. Tweed, Ronald (2000). A History of Langstone Harbour and its environs in the County of Hampshire. Dido Publications. p. 59. ISBN 0-9533312-1-0.
  22. Tweed, Ronald (2000). A History of Langstone Harbour and its environs in the County of Hampshire. Dido Publications. p. 54. ISBN 0-9533312-1-0.
  23. Tweed, Ronald (2000). A History of Langstone Harbour and its environs in the County of Hampshire. Dido Publications. pp. 160–161. ISBN 0-9533312-1-0.
  24. Fontana, Val; Fontana, Dominic (2000). "A brief historical survey". In Allen, Michael J; Gardiner, Julie (eds.). Our Changing Coast a survey of the intertidal archaeology of Langstone Harbour Hampshire. York: Council for British Archaeology. p. 87. ISBN 1-902771-14-1.
  25. Tweed, Ronald (2000). A History of Langstone Harbour and its environs in the County of Hampshire. Dido Publications. p. 155. ISBN 0-9533312-1-0.
  26. Tweed, Ronald (2000). A History of Langstone Harbour and its environs in the County of Hampshire. Dido Publications. pp. 157–161. ISBN 0-9533312-1-0.
  27. "Mercenaria mercenaria". Joint Nature Conservation Committee. Joint Nature Conservation Committee. 25 April 2006. Retrieved 10 January 2017.
  28. Tubbs, Colin (1999). The Ecology, Conservation and History of the Solent. Packard Publishing. p. 40. ISBN 1853411167.
  29. "Stranded sick whale put to sleep". BBC News. 1 August 2008.
  30. "Aerial footage of beached whale". BBC News. 1 August 2008.
  31. "Beached whale 'will not survive'". BBC News. 1 August 2008.
  32. Momber, Gary (2000). "Wrecks". In Allen, Michael J; Gardiner, Julie (eds.). Our Changing Coast a survey of the intertidal archaeology of Langstone Harbour Hampshire. York: Council for British Archaeology. pp. 124–127. ISBN 1-902771-14-1.
  33. Family History
  34. Hughes, Michael; Momber, Gary (2000). "The Mulberry Harbour Remains". In Allen, Michael J; Gardiner, Julie (eds.). Our Changing Coast a survey of the intertidal archaeology of Langstone Harbour Hampshire. York: Council for British Archaeology. pp. 127–128. ISBN 1-902771-14-1.
  35. Pritchard, Martin; McDonald, Kendall (1987). Dive Wight and Hampshire. Underwater World Publications. p. 82. ISBN 0-946020-15-9.

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