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Port Jackson shark

Heterodontus portusjacksoni

Tentang namanya: The genus name Heterodontus comes from Greek words meaning 'different' and 'tooth', which refers to its teeth.1

Tidak berbahayaTidak berbahaya bagi manusia. Tidak perlu khawatir.

Ikan berbisa

Duri berbisaMakan: Daging

Bahaya bagi manusia: RinganSeperti sengatan lebah atau lebih ringan. Pada dasarnya tidak berbahaya bagi manusia.

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

Hidup di

Temperate coastal waters of southern Australia, from southern Queensland to Tasmania and west to central Western Australia.1

Samudra Hindia, Samudra Selatan, Antarktika

Beranda

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

Panjang

1,6 m (5,4 ft)1

Kecepatan tertinggi

sekitar 22 km/jam (14 mph)

Berenang, perkiraan kasar

Apa makanannya?

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

Foto Port Jackson shark — Port Jackson shark. Foto: Mark Norman / Museum Victoria. CC BY 3.0, Wikimedia Commons.

Cara mengenalinya

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

Kekuatan bisa

Duri berbisa

Duri tajam membawa bisa. Menginjak atau memegangnya terasa sakit.

Seberapa berbahaya bagi manusia?

Bahaya bagi manusia: RinganSeperti sengatan lebah atau lebih ringan. Pada dasarnya tidak berbahaya bagi manusia.

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

Jika durinya menusukmu

Rendam luka dalam air panas, sepanas yang masih bisa ditahan tanpa melepuh (coba dulu dengan tanganmu sendiri), selama 30 sampai 90 menit. Cari bantuan medis, terutama untuk ikan batu dan ikan pari.

Selalu hubungi nomor darurat dulu (112, 000, 911). Ini panduan pertolongan pertama umum, bukan nasihat medis. Dasar-dasar pertolongan pertama

Tetap aman

Jangan pernah menyentuh, menangkap, atau mengganggu hewan liar, walaupun kecil, dan walaupun tampak tidur atau mati.
Beri ia ruang. Jika bertemu, tetap tenang, mundur perlahan, dan biarkan ia pergi.
Jika durinya menusukmu: tetap tenang, jangan bergerak, hubungi nomor darurat (112, 000, 911) atau segera ke rumah sakit. Ingat seperti apa rupanya, foto sangat membantu.

Ia tidak mengincarmu. Ia memakai bisanya untuk menangkap makanan atau melindungi diri, dan ia jauh lebih suka bersembunyi. Lebih lanjut tentang tetap aman

Di mana di dunia?

Afrika Asia Eropa Amerika Utara Amerika Selatan Australia dan Oseania Antarktika Samudra Hindia Samudra Selatan

Seberapa besar dia?

Seberapa panjang dia?

sepanjang 3 kucing peliharaan dari hidung ke ekorsepanjang 9 pisang yang dijajarkanbisa berenang sepanjang kolam renang besar (50 m) dalam 8,2 detik

Seberapa besar Port Jackson shark dibandingkan KAMU?

Hanya hitungan di browsermu. Tidak ada yang disimpan atau dikirim ke mana pun.

Seberapa cepat dia?

Perenang Olimpiade sekitar 8 km/jam (5 mph)

Port Jackson shark sekitar 22 km/jam (14 mph)

Lumba-lumba dengan kecepatan penuh sekitar 35 km/jam (22 mph)

layak diketahui

Fakta

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

Pembongkar mitos

Mitos: Port Jackson sharks are dangerous to people.

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

Untuk ahli bisa

Nama ilmiah: Heterodontus portusjacksoni
Kelompok: Ikan berbisa
Keluarga: Heterodontidae2
Urutan: Heterodontiformes
Benua: Samudra Hindia, Samudra Selatan, Antarktika, Samudra
Anak: 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
Bagaimana keadaannya di alam liar: Least Concern (IUCN Red List)1
Bahaya bagi manusia: 1 / 5: Ringan3

Dari mana faktanya berasal

Port Jackson shark (Wikipedia (CC BY-SA 4.0))
Heterodontus portusjacksoni (iNaturalist): nama dan klasifikasi.
Venom Wiki: tingkat bahaya, ukuran umum, dan perkiraan kecepatan adalah buatan kami. Lihat cara kami menghitungnya: Cara kami menilai bahaya.

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