Shag Island (South Australia)

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Shag Island
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Shag Island
Geography
Location Spencer Gulf
Administration
Australia

Shag Island is a low island located at the mouth of Fisherman Bay in Spencer Gulf, South Australia. It is approximately 22 ha (54 acres) in size [1] with a peak elevation of approximately 4 metres (13 feet). [2] It is uninhabited by humans but is home to thousands of cormorants which roost and breed there. It is also an important nursery-ground for fish. [3] In April 2013, the discovery of several sick and dead cormorants near Fisherman Bay raised public concerns for the health of the Shag Island colony. [4] The discovery coincided with significant fish and dolphin mortality events around the state, mostly concentrated in Spencer Gulf and Gulf St. Vincent. [5]

Wildlife

The following birds have been recorded at Shag Island: great cormorant, little black cormorant, pied cormorant, little pied cormorant, red-necked stint, sharp-tailed sandpiper, red-capped plover, banded stilt, bar-tailed godwit, grey plover, common greenshank and masked lapwing. [6]

Related Research Articles

Cormorant Family of aquatic birds

Phalacrocoracidae is a family of approximately 40 species of aquatic birds commonly known as cormorants and shags. Several different classifications of the family have been proposed and the number of genera is disputed, but in 2021 the IOC adopted a consensus taxonomy of 7 genera. The great cormorant and the common shag are the only two species of the family commonly encountered on the British Isles and "cormorant" and "shag" appellations have been later assigned to different species in the family somewhat haphazardly.

<i>Phalacrocorax</i> Genus of birds

Phalacrocorax is a genus of fish-eating birds in the cormorant family Phalacrocoracidae. Members of this genus are also known as the Old World cormorants.

Pelagic cormorant Species of bird

The pelagic cormorant, also known as Baird's cormorant, is a small member of the cormorant family Phalacrocoracidae. Analogous to other smallish cormorants, it is also called the pelagic shag occasionally. This seabird lives along the coasts of the northern Pacific; during winter it can also be found in the open ocean. Pelagic cormorants have relatively short wings due to their need for economical movement underwater, and consequently have the highest flight costs of any bird.

Little pied cormorant Species of bird

The little pied cormorant, little shag or kawaupaka is a common Australasian waterbird, found around the coasts, islands, estuaries, and inland waters of Australia, New Guinea, New Zealand, Thailand, Myanmar, Singapore, Brunei, Timor Leste, and Indonesia, and around the islands of the south-western Pacific and the subantarctic. It is a small short-billed cormorant usually black above and white below with a yellow bill and small crest, although a mostly black white-throated form predominates in New Zealand. Three subspecies are recognised. Until recently most authorities referred to this species as Phalacrocorax melanoleucos.

European shag Species of bird

The European shag or common shag is a species of cormorant. It is the only member of the monotypic genus Gulosus. It breeds around the rocky coasts of western and southern Europe, southwest Asia and north Africa, mainly wintering in its breeding range except for the northernmost birds. In Britain this seabird is usually referred to as simply the shag. The scientific genus name is Latinised Ancient Greek, from φαλακρός and κόραξ. The species name aristotelis commemorates the Greek philosopher Aristotle.

Spencer Gulf Large inlet in South Australia between the Eyre Peninsula and the Yorke Peninsula

The Spencer Gulf is the westernmost and larger of two large inlets on the southern coast of Australia, in the state of South Australia, facing the Great Australian Bight. It spans from the Cape Catastrophe and Eyre Peninsula in the west to Cape Spencer and Yorke Peninsula in the east.

Australian pied cormorant Species of bird

The Australian pied cormorant, also known as the pied cormorant, pied shag, or great pied cormorant, is a medium-sized member of the cormorant family. It is found around the coasts of Australasia. In New Zealand, it is usually known either as the pied shag or by its Māori name of kāruhiruhi. Older sources may refer to it as the "yellow-faced cormorant".

Spotted shag Species of bird

The spotted shag or pārekareka is a species of cormorant endemic to New Zealand. Though originally classified as Phalacrocorax punctatus, it is sufficiently different in appearance from typical members of that genus that for a time it was placed in a separate genus, Stictocarbo, along with a similar species, the Pitt shag. Subsequent genetic studies show that the spotted shag's lineage is nested within the typical shags.

The little black cormorant is a member of the cormorant family of seabirds. It is common in smaller rivers and lakes throughout most areas of Australia and northern New Zealand, where it is known as the little black shag. It is around sixty centimetres long, and is all black with blue-green eyes.

Black-faced cormorant Species of bird

The black-faced cormorant, also known as the black-faced shag, is a medium-sized member of the cormorant family. Upperparts, including facial skin and bill, are black, with white underparts. It is endemic to coastal regions of southern Australia.

Chatham shag Species of bird

The Chatham shag, also known as the Chatham Island shag, is a species of bird in the cormorant and shag family, Phalacrocoracidae. It is endemic to the Chatham Islands of New Zealand. For a long time the species was placed in the genus Phalacrocorax; today it is mostly placed with the other blue-eyed shags of New Zealand and Antarctica in the genus Leucocarbo. Its closest relative is the Otago shag of South Island.

Goose Island (South Australia)

Goose Island is a small (2 ha), rocky island lying about 550 m from the northern end of the much larger Wardang Island, off the west coast of the Yorke Peninsula, in the Spencer Gulf of South Australia. Rising to a height of 26 m, its vegetation is dominated by African boxthorn on clay and calcarenite soils. The waters surrounding the island are protected in the Goose Island Aquatic Reserve. The island is leased from the Department of Environment, Water and Natural Resources by Scotch College and is co-managed by the two parties.

Gulf St Vincent Important Bird Area

The Gulf St Vincent Important Bird Area comprises land extending along the coast of Gulf St Vincent, north of Adelaide, South Australia.

Suliformes Order of birds

The order Suliformes is an order recognised by the International Ornithologist's Union. In regard to the recent evidence that the traditional Pelecaniformes is polyphyletic, it has been suggested that the group be split up to reflect the true evolutionary relationships, a 2017 study indicated that they are most closely related to Otidiformes (bustards) and Ciconiiformes (storks).

Spencer Gulf Important Bird Area

The Spencer Gulf Important Bird Area comprises a 460.38 square kilometres strip of coastal land extending for about 100 kilometres along the north-eastern coast of the Spencer Gulf in South Australia. It is considered to be an important site for waders, or shorebirds.

Tourville and Murat Bays Important Bird Area

Tourville and Murat Bays Important Bird Area is an important bird area in South Australia with a combined area of 117 square kilometres, located west to the town of Ceduna on the north-west corner of the Eyre Peninsula in the Great Australian Bight. It is considered to be an important area because of the resident populations of waders, or shorebirds.

Lipson Cove

Lipson Cove is a tranquil sandy bay in the Australian state of South Australia on the east coast of Eyre Peninsula overlooking Spencer Gulf. It features in the 2012 book 101 Best Australian Beaches by Andy Short and Brad Farmer.

Bird Islands Conservation Park Protected area in South Australia

Bird Islands Conservation Park is a 3.69-square-kilometre (1.42 sq mi) protected area in eastern Spencer Gulf, South Australia. It is located at Warburto Point on Yorke Peninsula, about 10 km (6.2 mi) south of the town of Wallaroo. In 1991, land additions were made to the park to include the intertidal zone of both islands. In 1999, a larger, mainland section was added to support mangroves, samphire and coastal fringe vegetation.

Beatrice Islets

Beatrice Islets are pair of islets in the Australian state of South Australia located in Nepean Bay on the north coast of Kangaroo Island about 4 kilometres east of Kingscote. The islets and adjoining intertidal areas are notable as habitat for bird life. The islet pair has enjoyed protected area status since 1909 and since at least 1972, have been part of the Beatrice Islet Conservation Park. During either the 1960s or the 1970s, the islets were extensively damaged by an exercise to remove an infestation of South African boxthorn.

Busby Islet

Busby Islet is an islet in the Australian state of South Australia located in Nepean Bay on the north coast of Kangaroo Island about 2 kilometres north of the municipal seat of Kingscote. The islet and adjoining areas are notable as habitat for bird life. The islet has enjoyed protected area status since 1909 and since at least 1972, have been part of the Busby Islet Conservation Park.

References

  1. Map of Shag Island, SA Bonzle.com. Accessed 2014-01-18.
  2. Shag Island (island) Geoview.info Accessed 2014-01-18.
  3. "Port Broughton Fishing Charter" Archived 2009-09-18 at the Wayback Machine Postcards (2009-05-03). Retrieved 2014-01-18.
  4. Mooney, Mark "Bird deaths have locals puzzled" 7 News Adelaide, South Australia (2013-04-30). Retrieved 2014-01-18.
  5. "Fish & Dolphin Mortalities in South Australia March-April 2013 - Final Report" Archived 2014-02-01 at the Wayback Machine PIRSA, Government of South Australia (2013-05-31). Retrieved 2014-01-18.
  6. Explore Your Area > Shag Island Atlas of Living Australia. Accessed 2014-01-18.

Coordinates: 33°33′30″S137°55′09″E / 33.55833°S 137.91917°E / -33.55833; 137.91917