Tsibirin Nobby
| Tsibirin Nobby | |
|---|---|
 | |
| General information | |
Height above mean sea level (en)  | 28 m |
| Labarin ƙasa | |
 | |
| Tsarin Daidaiton Labarin Kasa | 36°00′S 137°18′E / 36°S 137.3°E |
| Kasa | Asturaliya |
| Territory |
South Australia (en) |
Nobby Islet (wanda aka fi sani da Knobby Island da Nobby Island) wani tsibiri ne da ke cikin Babban Australian Bight a kudancin tsibirin Kangaroo a cikin Jihar Australiya ta Kudu Australia kimanin kilomita 50 (31 miles) kudu maso yammacin Kingscote . A halin yanzu yana daga cikin Seal Bay Conservation Park.
Bayyanawa
[gyara sashe | gyara masomin]Nobby Islet yana da kusan kilomita 50 (31 miles) kudu maso yammacin Kingscote kuma kimanin kilomita 9.2 (5.7 miles) gabashin Point Ellen a Vivonne Bay kuma a cikin mita 200 (660 feet) daga bakin teku a Seal Bay. An bayar da rahoton cewa tsibirin yana da siffar cylindrical tare da kusan bangarorin tsaye kuma an gama shi da saman shimfiɗa. Yana da mita 75 (246 feet) tsawo kuma yana da yanki na hekta 12 (30 acres). [1] Tsibirin yana da wuyar isa saboda wurin da yake a cikin ruwa mai zurfi wanda ke kusa da bakin tekun da ke da dutse wanda ke fuskantar teku mai juyawa da kuma yanayin da ke cikin fuskar dutsen da ke tsaye. Binciken da hukumar gwamnati mai alhakin ta gudanar a cikin 1996 ta yi amfani da Helikofta don samun damar taron koli na tsibirin.[1]
Halitta, ilimin ƙasa da ilimin teku
[gyara sashe | gyara masomin]Nobby Islet na iya kasancewa a kwanan nan shekaru 6000 da suka gabata saboda zurfin ruwa da ke kewaye da shi.[2][3] Ya zuwa shekara ta 1996, an ruwaito tsibirin kamar yadda ya bayyana cewa an hada shi gaba ɗaya da dutse mai laushi da aka sani da Bridgewater Formation calcarenite. An kuma lura cewa akwai shaidar kwanan nan na dutsen da aka rushe saboda lalacewar calcarenite kuma cewa tarkace-tarkace sun kasance a gefen arewacin da aka kare yayin da duk wani kayan da ya rushe a fuskarsa ta kudu an wanke shi ta hanyar aikin raƙuman ruwa. An kuma bayar da rahoton taron koli na tsibirin a matsayin 'mai laushi da tsayayya da yadudduka na calcrete waɗanda ke riƙe da igiyoyin yashi'.[4] Nobby Islet a zahiri tarin teku ne. Tsibirin yana cikin ruwa mai zurfin kimanin mita 5.5 (18 feet) wanda ke ɓoye dandamali masu yanke raƙuman ruwa kuma suna ƙarƙashin teku mai juyawa.
Tsire-tsire da dabbobi
[gyara sashe | gyara masomin]Ya zuwa shekara ta 1996, fuskokin dutsen ba su da tsire-tsire. Taron tsibirin ya mamaye tarin tsire-tsire na Coast tussock-grass tare da kwaci shrubland da ke da alaƙa da Coast Daisy-bush. Sauran nau'o'in 25 an gano su ciki har da Dry land Tea-tree, Coast Beard-heath, Common correa, Cotton bush, Thyme Riceflower, mai nuna tagwaye, Black-anther Flax Lily, Common Wallaby Grass da Downy Dodder-laurel. Rayuwar dabba guda daya da aka lura a shekara ta 1996 ita ce gidan Osprey da ke gefen arewacin tsibirin, petrels masu farin fuska waɗanda ke yin gida a cikin ƙananan burrows da ke kan dukkan taron da nau'ikan lizard guda biyu - gecko mai marmara da bull skink.[1]
Yanayin wuraren da aka kare
[gyara sashe | gyara masomin]Nobby Islet da farko ya sami matsayin yanki mai kariya a matsayin ajiyar fauna a ƙarƙashin tsohon Dokar Kare Fauna ta 1964 sannan kuma a matsayin ajiya na kiyaye fauna da aka ayyana a ƙarƙashin Dokar Crown Lands ta 1929-1966 a ranar 16 ga Maris 1967. [5][6] Tun daga shekara ta 1971, ruwan da ke kewaye da tsibirin ya kasance wani ɓangare na Seal Bay Aquatic Reserve.[7] Ya zuwa shekara ta 1996, an bayyana shi a matsayin an haɗa shi a cikin Seal Bay Conservation Park.[8] Ya zuwa shekara ta 2012, ruwan da ke kewaye da gabarta wani bangare ne na wani yanki mai ƙuntataccen damar da ke cikin iyakokin Kudancin Kangaroo Island Marine Park . [9]
Manazarta
[gyara sashe | gyara masomin]- ↑ 1.0 1.1 1.2 Robinson, A. C.; Canty, P.; Mooney, T.; Rudduck, P. (1996). "South Australia's offshore islands" (PDF). Australian Heritage Commission. pp. 298–300. Retrieved 13 December 2013. Cite error: Invalid
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- ↑ Robinson, A. C.; Canty, P.; Mooney, T.; Rudduck, P. (1996). "South Australia's offshore islands" (PDF). Australian Heritage Commission. p. 11. Retrieved 13 December 2013.
- ↑ Robinson, A. C.; Canty, P.; Mooney, T.; Rudduck, P. (1996). "South Australia's offshore islands" (PDF). Australian Heritage Commission. pp. 298–300. Retrieved 13 December 2013.
- ↑ Robinson, A. C.; Canty, P.; Mooney, T.; Rudduck, P. (1996). "South Australia's offshore islands" (PDF). Australian Heritage Commission. p. 140. Retrieved 13 December 2013.
- ↑ "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.
- ↑ "Summary of SA Marine Protected Areas by Type (see 'SA Reserve List' tab)". Australian Government - Department of the Environment. 10 February 2003. Retrieved 5 October 2014.
- ↑ Robinson, A. C.; Canty, P.; Mooney, T.; Rudduck, P. (1996). "South Australia's offshore islands" (PDF). Australian Heritage Commission. p. 147. Retrieved 13 December 2013.
- ↑ "Southern Kangaroo Island Marine Park Management Plan 2012" (PDF). Department of Environment Water and Natural Resources. 2012. pp. 24/26. Retrieved 13 May 2014.