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Ikhathuni ka-Port Jackson shark
Inombolo 1260 kwezi-1 402

Port Jackson shark

Heterodontus portusjacksoni
Malunga negama: The genus name Heterodontus comes from Greek words meaning 'different' and 'tooth', which refers to its teeth.1
AsinangoziAsinangozi ebantwini. Akukho nto yokukhathazeka ngayo.
Iintlanzi ezinetyhefu Amava anetyhefuSitya: Inyama
Ingozi ebantwini: KuthambileNjengokuhlatywa yinyosi okanye ngaphantsi. Phantse asinangozi ebantwini.

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

Sihlala
Temperate coastal waters of southern Australia, from southern Queensland to Tasmania and west to central Western Australia.1
uLwandlekazi lwaseIndiya, uLwandlekazi oluseMazantsi, IAntarctica
Ekhaya
It lives on or near the sea bottom, mostly over rocky ground, though it also uses sandy, muddy and seagrass areas. By day it rests in flat areas that offer shelter from currents, including caves and under rocky outcrops. It usually lives at depths of less than 100 metres.1
Ubude
1,6 m (5,4 ft)1
Esona santya siphezulu
malunga ne-22 km/h (14 mph)
Ukuqubha, uqikelelo nje
Sitya ntoni?
It eats hard-shelled molluscs, crustaceans, sea urchins and fish. It forages at night, when its prey is most active, and can suck in water and sand from the bottom to catch food. Black sea urchins are often eaten.1
Ngokwenene!Ifoto ka-Port Jackson shark
Port Jackson shark. Ifoto: Mark Norman / Museum Victoria. CC BY 3.0, Wikimedia Commons.

Indlela yokusiqaphela

  • 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

Amandla etyhefu yokuluma nokuhlaba

Amava anetyhefu

Amava abukhali aphethe ityhefu. Ukusinyathela okanye ukusibamba kubuhlungu.

Siyingozi kangakanani ebantwini?

Ingozi ebantwini: KuthambileNjengokuhlatywa yinyosi okanye ngaphantsi. Phantse asinangozi ebantwini.

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

Ukuba amava aso ayakugwaza

  • Faka inxeba emanzini ashushu, ashushu kangangoko umntu angakwazi ukunyamezela ngaphandle kokutshiswa (wavavanye ngesandla sakho), imizuzu engama-30 ukuya kwengama-90. Fumana uncedo lwezonyango, ingakumbi kwii-stonefish nakwii-stingray.

Soloko utsalela inombolo kaxakeka kuqala (112, 000, 911). Esi sisikhokelo soncedo lokuqala ngokubanzi, asilocebiso lwezonyango. Iziseko zoncedo lokuqala

Hlala ukhuselekile

  • Ungaze uchukumise, ubambe okanye uqhule isilwanyana sasendle, nokuba sincinci, kwaye nokuba sibonakala silele okanye sifile.
  • Sinike indawo. Ukuba udibana naso, hlala uzolile, buyela umva kancinci kwaye usiyeke sihambe ngendlela yaso.
  • Ukuba amava aso ayakugwaza: hlala uzolile, musa ukushukuma, tsalela inombolo kaxakeka (112, 000, 911) okanye uye esibhedlele ngokukhawuleza. Khumbula ukuba sasikhangeleka njani, ifoto iyanceda.

Asikuzingeli. Sisebenzisa ityhefu yaso ukubamba ukutya okanye ukuzikhusela, kwaye singakhetha ukuzimela. Okungakumbi malunga nokuhlala ukhuselekile

Phi emhlabeni?

IAfrikaIAsiyaIYurophuuMntla MelikauMzantsi MelikaIOstreliya neOceaniaIAntarcticauLwandlekazi lwaseIndiyauLwandlekazi oluseMazantsi

Sikhulu kangakanani?

Side kangakanani?

Port Jackson shark malunga ne-1,6 m ubude (5,4 ft)Inja malunga ne-1 m (3,3 ft)Umntu omdala malunga ne-1,7 m (5,6 ft)
ubude obulingana neekati zasekhaya eziyi-3 ukusuka empumlweni ukuya emsileniubude obulingana neebhanana eziyi-9 zilandelelanasingaqubha ubude bechibi elikhulu lokuqubha (50 m) ngemizuzwana eyi-8,2

U-Port Jackson shark mkhulu kangakanani xa uthelekisa NAWE?

Zizibalo nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwa naphi na.

Sikhawuleza kangakanani?

kufanelekile ukwazi

Iinyaniso

1

It can turn its stomach inside out and spit out unwanted contents.1

2

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

3

Juveniles have individual personalities. Some are bolder than others when exploring new places, and they respond differently to stress.1

4

Juveniles can learn to link bubbles, lights or sounds with food, and they can learn by watching other sharks.1

5

Adults are often seen resting together in caves, but juveniles do not seem to be social.1

6

Each year it migrates south in summer and returns north to breed in winter.1

Umqhekezi weentsomi

Intsomi: Port Jackson sharks are dangerous to people.

Inyaniso: The shark poses no danger to humans. Its spines are rumoured to be venomous, but this has not been confirmed.1

Kwiingcali zetyhefu

Igama lenzululwazi
Heterodontus portusjacksoni
Iqela
Iintlanzi ezinetyhefu
Usapho
Heterodontidae2
Ucwangco
Heterodontiformes
Amazwekazi
uLwandlekazi lwaseIndiya, uLwandlekazi oluseMazantsi, IAntarctica, Iilwandlekazi
Iintsana
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
Imeko yaso endle
Least Concern (IUCN Red List)1
Ingozi ebantwini
1 / 5: Kuthambile3

Apho iinyaniso zivela khona

  1. Port Jackson shark (Wikipedia (CC BY-SA 4.0))
  2. Heterodontus portusjacksoni (iNaturalist): amagama nokuhlelwa.
  3. Venom Wiki: inqanaba lengozi, ubungakanani obuqhelekileyo noqikelelo lwesantya zezethu. Bona indlela esizifumana ngayo: Indlela esilinganisa ngayo ingozi.

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