| Geography | |
|---|---|
| Location | Great Australian Bight |
| Administration | |
Australia | |
| Demographics | |
| Population | 0 |
Paisley Islet (also known asWest Bay Islet) is anislet located in theGreat Australian Bight immediately off the west coast ofKangaroo Island inSouth Australia approximately 104 kilometres (65 miles) west south-west ofKingscote. It is currently part of theFlinders Chase National Park.
Paisley Islet is approximately 104 kilometres (65 miles) west south-west ofKingscote. It is an extension of the southern headland of West Bay and is only separated from the mainland by tide or wind driven waves. It can be reached by walking along the rock isthmus at low tide.[1]
Paisley Islet was formed about 7500 years ago after sea levels rose at the start of theHolocene.[2] The islet consists of basement rock ofKanmantoo group metasandstone which extends to the mainland. The central portion of the islet is topped with a layer of Bridgewater Formationcalcarenite which is in turn capped with a layer ofcalcrete. Layers of soil lie in depressions within the calcrete layer.[1] The islet is located in waters of a depth of about 9.1 metres (30 feet) that partially concealwave-cut platforms and that are subject to rolling seas.[3]
As of 1996, the rim of the calcarenite cap has been colonised byroundleaved pigface, andsea celery. Species found on the central portion of the islet included dwarfedmarsh saltbush,nitre-bush,southern sea-heath andruby saltbush. Species such asfeather spear-grass and variable groundsel appear after seasonal rain.[1]Vertebrate animals were represented by birds, mammals and reptiles. A survey conducted in 1996 found that the islet is used as a breeding site, possibly during milder weather, forcrested terns and as a site for roosting and feeding byred-capped dotterels,sooty oystercatchers,rock parrots,welcome swallows andAustralian pipit. It was also observed that the islet was being used as ahaul out by bullAustralian sea lions. Thefour-toed earless skink was the only reptile found in 1996.[1]
The islet is part of the Flinders Chase National Park and has been specifically proclaimed as a prohibited area in order to protect breeding seabirds such as crested terns.[1][4]Since December 2012, the waters around the islet has been part of a habitat protection zone located within the boundaries of theWestern Kangaroo Island Marine Park.[5]