Port Jackson shark
The Port Jackson shark is a bottom-dwelling shark that lives in the cool coastal waters of southern Australia. It is active mostly at night, when it hunts shellfish, sea urchins and fish. It is harmless to people, though its spines have a reputation that is not confirmed.1

Uni qanday tanish mumkin
- Grey-brown body with dark brown, harness-like bands, including one that runs across the eyes.1
- Large, blunt, flat head with raised ridges above the eyes.1
- A spine at the front edge of each of its two dorsal fins, which are nearly equal in size.1
- Front teeth are small and pointed, while back teeth are flat and blunt.1
- Adults can grow up to 1.65 metres long.1
Zahar quvvati
Oʻtkir tikanlar zahar tashiydi. Ustiga bosish yoki ushlash ogʻritadi.
Odamlar uchun qanchalik xavfli?
Odamlar uchun xavf: YengilAri nishidek yoki undan ham kam. Odamlar uchun deyarli zararsiz.The shark poses no danger to humans. In October 2011, a man was bitten at Elwood Beach near Melbourne, but the bite did not pierce the skin and he was able to swim away while the shark was still attached to his calf.1
Agar tikanlari senga sanchilsa
- Yarani issiq suvga sol, odam kuymasdan chiday oladigan darajada issiq boʻlsin (oʻz qoʻling bilan tekshir), 30 daqiqadan 90 daqiqagacha. Tibbiy yordam ol, ayniqsa tosh baliq va nishli skatda.
Har doim avval favqulodda yordam raqamiga qoʻngʻiroq qil (112, 000, 911). Bu birinchi yordam boʻyicha umumiy maslahat, tibbiy maslahat emas. Birinchi yordam asoslari
Xavfsiz boʻl
- Hech qachon yovvoyi hayvonga tegma, uni tutma yoki jigʻiga tegma, hatto kichkina boʻlsa ham va hatto uxlayotgan yoki oʻlik koʻrinsa ham.
- Unga joy ber. Agar duch kelsang, xotirjam boʻl, sekin orqaga chekin va uni oʻz yoʻliga ketishiga qoʻy.
- Agar tikanlari senga sanchilsa: xotirjam boʻl, qimirlamay tur, favqulodda yordam raqamiga qoʻngʻiroq qil (112, 000, 911) yoki tezda kasalxonaga yet. U qanday koʻrinishda ekanini eslab qol, surat yordam beradi.
U seni ovlamoqchi emas. Zaharini ovqat tutish yoki oʻzini himoya qilish uchun ishlatadi va yashirinishni ancha afzal koʻradi. Xavfsiz qolish haqida batafsil
Dunyoning qayerida?
U qanchalik katta?
U qanchalik uzun?
burnidan dumigacha tizilgan 3 ta uy mushugidek uzun
ketma-ket qoʻyilgan 9 ta banandek uzun
katta basseyn uzunligini (50 m) 8,2 soniyada suzib oʻtishi mumkinPort Jackson shark SEN bilan solishtirganda qanchalik katta?
Faqat brauzeringdagi hisob-kitob. Hech narsa saqlanmaydi va hech qayerga yuborilmaydi.
U qanchalik tez?
Faktlar
It can turn its stomach inside out and spit out unwanted contents.1
It can breathe while lying still on the bottom. It pumps water in through its first gill slit and out through the others, so it does not need to swim with its mouth open.1
Juveniles have individual personalities. Some are bolder than others when exploring new places, and they respond differently to stress.1
Juveniles can learn to link bubbles, lights or sounds with food, and they can learn by watching other sharks.1
Adults are often seen resting together in caves, but juveniles do not seem to be social.1
Each year it migrates south in summer and returns north to breed in winter.1
Afsonalarni fosh qiluvchi
Afsona: Port Jackson sharks are dangerous to people.
Haqiqat: The shark poses no danger to humans. Its spines are rumoured to be venomous, but this has not been confirmed.1
Zahar mutaxassislari uchun
- Ilmiy nomi
- Heterodontus portusjacksoni
- Guruh
- Zaharli baliqlar
- Oila
- Heterodontidae2
- Tartib
- Heterodontiformes
- Qitʼalar
- Hind okeani, Janubiy okean, Antarktida, Okeanlar
- Chaqaloqlar
- It lays eggs rather than giving birth to live young. From late August to mid-November, the female lays pairs of eggs every 8 to 17 days, up to eight pairs in total, and the eggs take 10 to 11 months to hatch.1
- Tabiatda ahvoli qanday
- Least Concern (IUCN Red List)1
- Odamlar uchun xavf
- 1 / 5: Yengil3
Faktlar qayerdan olingan
- Port Jackson shark (Wikipedia (CC BY-SA 4.0))
- Heterodontus portusjacksoni (iNaturalist): nomlar va tasnif.
- Venom Wiki: xavf darajasi, odatiy oʻlcham va taxminiy tezlik bizning oʻz baholarimiz. Ularni qanday hisoblashimizni koʻr: Xavfni qanday baholaymiz.
Bu sahifadagi har bir faktning manbasiga ishora qiluvchi raqami bor. Agar biror narsani xato yozgan boʻlsak, kechir, biz hayvon ixlosmandlarimiz, ilmiy jurnal emas. [email protected] manziliga yoz, tuzatamiz.
Zaharli tikanlar

