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Pelican Lagoon

From Wikipedia, the free encyclopedia

Pelican Lagoon
Pelican lagoon and American River.JPG
Pelican Lagoon
Pelican Lagoon is located in South Australia
Pelican Lagoon
Pelican Lagoon
Location in South Australia
LocationKangaroo Island, South Australia
Coordinates35°49′10″S 137°47′24″E / 35.81944°S 137.79000°E / -35.81944; 137.79000[1]
Typeseawater lagoon
Basin countriesAustralia
Max. length4.5 km (2.8 mi).[2]
Max. width6 km (3.7 mi)[2]
Surface area1,520 ha (3,800 acres)[3]
Max. depth10 m (33 ft)[3]
Salinitysea water
IslandsGoanna Islet, Pig Islet, Rabbit Islet, Shag Rock, Samphire Islet, Wallaby Islet and several unnamed islands[3]
SettlementsPelican Lagoon[1]

Pelican Lagoon is a seawater lagoon in the Australian state of South Australia located on the north coast of Kangaroo Island about 18.7 kilometres (11.6 miles) south east of Kingscote. It was named by Matthew Flinders on 4 April 1802 after the large population of pelicans present in its waters and adjoining shorelines. Its role as fishery hatchery had been identified by the early 20th century with the result that fishing in its waters has been restricted in varying degrees.

Since 1971, the entire lagoon was part of a marine protected area known as the American River Aquatic Reserve (abolished 2016), where all fishing and the collection of marine organisms is prohibited. Since 2012, the Pelican Lagoon Sanctuary Zone has been within Encounter Marine Park and managed by National Parks South Australia. The lagoon is probably the oldest marine protected area in South Australia, having been protected since 1914.


Pelican Lagoon is a seawater lagoon located about 2.9 kilometres (1.8 miles) south of American River and about 18.7 kilometres (11.6 miles) south east of Kingscote. The lagoon is bounded by Dudley Peninsula to the east, the main body of Kangaroo Island to the west, an isthmus connecting the above-mentioned bodies of land to the south and an unnamed peninsula to the north that separates it from Eastern Cove. The lagoon is connected to Eastern Cove in Nepean Bay by an inlet named American River.[4] Hog Bay Road which is the main road connecting Penneshaw to Kingscote passes on the east and south sides of the lagoon.[5][6][7][8]

The lagoon itself consists of two branches - one on the east side and the other on the west side which was described as being the ‘southern branch’ by Flinders in 1802.[9] The lagoon is drained of water by tidal flow via a narrow channel of 3 to 5 metres (9.8–16.4 ft) in depth and which passes through the west branch in order to reach the east branch. The tidal flow is reported as being as high as 3 kn (5.6 km/h; 3.5 mph).[3]

The west branch has an average water depth of 0.9 metres (2 feet 11 inches) presumably at low water while the eastern branch has several deeper areas - the majority of its north side ranges in depth from 3 to 9.9 metres (9.8–32.5 ft) and its south side has a number of deeper areas in the range of 1 to 2.9 metres (3.3–9.5 ft).[3]


A number of islets are present within Pelican Lagoon. Six of these are named as follows (from east to west): Rabbit Islet, Goanna Islet, Pig Islet, Wallaby Islet, Shag Rock and Samphire Islet.[3]

Flora and fauna



The islands within the lagoon support heathlands dominated by Coastal Daisybush and Thyme Riceflower. The coastline enclosing the lagoon supports a range of vegetation types dominated by heathlands of Acacia leiophylla and Orthrosanthus multiflorus, herb lands of Senecio odoratus, coastal mallee scrub of Eucalyptus diversifolia, samphire flats and grazed grasslands.[7]

Intertidal and sub tidal

Samphire grows on the mud flats within the lagoon which are exposed at low water. The subtidal areas of the lagoon are dominated by the seagrass species of Heterozostera tasmanica and Posidonia australis. Various algae species are also present.[7]



Waterbirds that use the lagoon include nine species that breed in the locality such as the chestnut teal, pied oystercatcher, sooty oystercatcher and caspian tern. Seventeen waterbird species are listed on international migratory treaties with sixteen listed on the Japan-Australia Migratory Bird Agreement (JAMBA) and seventeen listed on the China-Australia Migratory Bird Agreement (CAMBA).[7] As of 1996, Black tiger snakes were reported as being present on the islands within the lagoon.[10]

Intertidal and sub tidal

The lagoon is reported as a breeding site for the little penguin.[7] The lagoon supports a number of marine animal species considered to be commercially valuable. These include sand crab, king scallop, queen scallop, razorfish (<i>Pinna bicolor</i>), southern calamari, flathead, King George whiting, leatherjacket, red mullet, snook, Southern Sea garfish, tommy ruff, trevally and Western Australian salmon.[11] The lagoon is also reported as being home for a pod of bottle-nosed dolphins.[7]


European discovery and use

The lagoon was discovered by Flinders on 4 April 1802 and was named in recognition of the large pelican population present at the time.[9] Since the establishment of South Australia, the lagoon has also been known as American River.[12] The islands within the lagoon were mined for guano under licence from the South Australian Government prior to 1919.[13] As early as May 1905, fishing by the use of nets was prohibited both in Pelican Lagoon and adjoining waters in both American River and Eastern Cove.[14] As early as 1908, the role of ‘Pelican Lagoon on the American River’ as a hatchery area was acknowledged by the South Australian government via statements attributed to Mr. S. McIntosh, the then Deputy Chief Inspector of Fisheries.[15] By early 1925, the lagoon was reported as being closed to all types of fishing.[16] The islands within the lagoon first obtained protected area status as a fauna conservation reserve declared under the Crown Lands Act 1929-1966 on 16 March 1967.[17]

Ports and other settlements

Pelican Lagoon is bounded to the west by the locality of Muston and to the south and to the east by the locality of Pelican Lagoon which both include land zoned for residential accommodation[1][18]

Protected area status

The lagoon is associated with three protected areas:

  • American River Aquatic Reserve, which covered the entire lagoon,[5] but was abolished in 2016.[19]
  • Pelican Lagoon Conservation Park, which includes five of the islands in the lagoon and much of the land on the peninsula to the north of the lagoon.[20]
  • Since 2012, the Pelican Lagoon Sanctuary Zone has been within Encounter Marine Park and managed by National Parks South Australia. The lagoon is probably the oldest marine protected area in South Australia, having been protected since 1914.[21][22]

The lagoon is also appears on a list of nationally important wetlands in South Australia as part of the "American River Wetland System".[23]

Citations and references


  1. ^ a b c d "Search result for "Pelican Lagoon  (Bay)" (Record no SA0054251) with the following layers selected - "Suburbs and Localities"". Government of South Australia. Archived from the original on 12 October 2016. Retrieved 23 May 2016.
  2. ^ a b DMH, 1985, chart 12.
  3. ^ a b c d e f PIRSA, 2012, page 9 of 35.
  4. ^ BIA, 2005, page 186.
  5. ^ a b PIRSA, 2007.
  6. ^ Department of Environment and Planning, 1987, page 64.
  7. ^ a b c d e f Australian Government Department of the Environment, after 1971, American River Marine and Coastal Area.
  8. ^ "American River". Gazetteer of Australia online. Geoscience Australia, Australian Government.
  9. ^ a b Flinders, 1814 (1966), pages 259-260.
  10. ^ Robinson et al, 1996, page 148.
  11. ^ PIRSA, 2012, page 14 of 35.
  12. ^ "General News". The Chronicle. 1 December 1917. pp. 31–32. Retrieved 2 September 2014.
  13. ^ Robinson et al, 1996, page 134.
  14. ^ "Miscellaneous News, Protecting fish". The Advertiser. 5 May 1905. p. 7. Retrieved 2 September 2014.
  15. ^ "The fishing industry, facts and figures, superiority of South Australian fish". The Advertiser. 9 September 1908. p. 7. Retrieved 2 September 2014.
  16. ^ "Fishing in American River". The Register. 4 March 1925. p. 14. Retrieved 2 September 2014.
  17. ^ "CROWN LANDS ACT, 1929-1966: FAUNA CONSERVATION RESERVES DEDICATED" (PDF). THE SOUTH AUSTRALIAN GOVERNMENT GAZETTE. Government of South Australia. 16 March 1967. pp. 961–962. Retrieved 5 February 2018.
  18. ^ DPTI, 2014, pages 296-330 and 371-374
  19. ^ "Fisheries Management (Aquatic Reserves) Proclamation 2016". The South Australian Government Gazette. Government of South Australia. 20 October 2016. p. 4071. Retrieved 5 December 2019.
  20. ^ Department of Environment and Planning, 1987, pages 64-75.
  21. ^ "Encounter Marine Park". National Parks South Australia. 10 February 2018. Retrieved 25 March 2020.
  22. ^ "Encounter Marine Park Management plan summary" (PDF). Department of Environment, Water and Natural Resources. p. 31 of 39. Retrieved 17 June 2014.
  23. ^ Environment Australia, 2001, page 77.


This page was last edited on 26 January 2021, at 01:43
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