ቁ. 1260 ካብ 1 402

Port Jackson shark

Heterodontus portusjacksoni

ብዛዕባ እቲ ስም፦ The genus name Heterodontus comes from Greek words meaning 'different' and 'tooth', which refers to its teeth.1

ዘይጎድእንሰባት ኣይጎድእን። ዘሻቕል ነገር የለን።

መርዛማት ዓሳታት

መርዛም እሾኽዝበልዖ፦ ስጋ

ሓደጋ ንሰባት: ቀሊልከም ምንዳፍ ንህቢ ወይ ካብኡ ዝውሕድ። ንሰባት ዳርጋ ዘይጎድእ።

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

ዝነብረሉ

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

ህንዳዊ ውቅያኖስ, ደቡባዊ ውቅያኖስ, ኣንታርክቲካ

መበገሲ

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

ንውሓት

1,6 m (5,4 ft)1

ዝለዓለ ቅልጣፈ

ኣስታት 22 ኪ.ሜ/ሰዓት (14 ማይል/ሰዓት)

ምሕምባስ, ግምት

እንታይ ይበልዕ?

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

ስእሊ Port Jackson shark — Port Jackson shark። ስእሊ፦ Mark Norman / Museum Victoria። CC BY 3.0, Wikimedia Commons.

ብኸመይ ትፈልጦ

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

ሓይሊ መርዚ

መርዛም እሾኽ

በሊሕ እሾኽ ነቲ መርዚ ይሕዞ። ምርጋጹ ወይ ምሓዙ የቐንዚ።

ንሰባት ክንደይ ሓደገኛ እዩ?

ሓደጋ ንሰባት: ቀሊልከም ምንዳፍ ንህቢ ወይ ካብኡ ዝውሕድ። ንሰባት ዳርጋ ዘይጎድእ።

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

እሾኹ እንተ ወጊኡካ

ነቲ ቑስሊ ኣብ ውዑይ ማይ ኣእትዎ፣ እቲ ሰብ ከይተቓጸለ ክጻወሮ ዝኽእል ክሳብ ዝኸውን ውዑይ (ብናትካ ኢድ ፈትኖ)፣ ን30 ክሳብ 90 ደቒቕ። ሕክምናዊ ሓገዝ ርኸብ፣ ብፍላይ ንስቶንፊሽን ስቲንግሬይን።

ኩሉ ግዜ ቀዳምነት ናብ ቁጽሪ ህጹጽ ረድኤት ደውል (112፣ 000፣ 911)። እዚ ሓፈሻዊ መምርሒ ቀዳማይ ረድኤት እዩ፣ ሕክምናዊ ምኽሪ ኣይኮነን። መሰረታት ቀዳማይ ረድኤት

ብድሕንነት ጽናሕ

ንዘገዳም እንስሳ ፈጺምካ ኣይትተንክፎ፣ ኣይትሓዞ ወይ ኣይተሕርቖ፣ ንእሽቶ እንተ ኾነ እውን፣ ደቂሱ ወይ ሞይቱ እንተ መሰለ እውን።
ቦታ ሃቦ። እንተ ረኺብካዮ፣ ህዱእ ኹን፣ ቀስ ኢልካ ንድሕሪት ተመለስ፣ ናብ መገዱ ድማ ይኺድ ሕደጎ።
እሾኹ እንተ ወጊኡካ፦ ህዱእ ኹን፣ ከይተንቀሳቐስካ ጽናሕ፣ ናብ ቁጽሪ ህጹጽ ረድኤት (112፣ 000፣ 911) ደውል ወይ ብቕልጡፍ ናብ ሆስፒታል ኪድ። ከመይ ከም ዝመስል ዘክር፣ ስእሊ ይሕግዝ።

ንዓኻ ከጥቅዕ ኣይደልን እዩ። መርዙ ዝጥቀመሉ መግቢ ንምሓዝ ወይ ንርእሱ ንምክልኻል እዩ፣ ምሕባእ ድማ ኣዝዩ ይመርጽ። ብዛዕባ ድሕንነት ተወሳኺ

ኣበይ ኣብ ዓለም?

ኣፍሪቃ እስያ ኤውሮጳ ሰሜን ኣመሪካ ደቡብ ኣመሪካ ኣውስትራልያን ኦሽያንያን ኣንታርክቲካ ህንዳዊ ውቅያኖስ ደቡባዊ ውቅያኖስ

ክንደይ ዓቢ እዩ?

ክንደይ ይነውሕ?

ካብ ኣፍንጫ ክሳብ ጭራ ከም ዝተሰርዑ 3 ኣናሙ ገዛ ይነውሕጫፍ ንጫፍ ከም ዝተሰርዑ 9 ባናናታት ይነውሕንውሓት ዓቢ መሕምበሲ (50 ሜ) ብ8,2 ካልኢት ክሕምበሶ ይኽእል

Port Jackson shark ምሳኻ ክወዳደር ከሎ ክንደይ ዓቢ እዩ?

ኣብ ብራውዘርካ ዝስራሕ ሕሳብ ጥራይ። ዋላ ሓደ ነገር ኣይዕቀብን ናብ ዝኾነ ቦታ ድማ ኣይለኣኽን።

ክንደይ ቅልጡፍ እዩ?

ሓምባሲ ኦሎምፒክ ኣስታት 8 ኪ.ሜ/ሰዓት (5 mph)

Port Jackson shark ኣስታት 22 ኪ.ሜ/ሰዓት (14 mph)

ብምሉእ ቅልጣፈ ዝሕንበስ ዶልፊን ኣስታት 35 ኪ.ሜ/ሰዓት (22 mph)

ክፍለጥ ዘለዎ

ሓቅታት

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

ጽውጽዋይ ዝሰብር

ጽውጽዋይ፦ Port Jackson sharks are dangerous to people.

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

ንክኢላታት መርዚ

ሳይንሳዊ ስም: Heterodontus portusjacksoni
ጉጅለ: መርዛማት ዓሳታት
ስድራ ቤት: Heterodontidae2
ቅደም ሰዓብ: Heterodontiformes
ክፍለ ዓለማት: ህንዳዊ ውቅያኖስ, ደቡባዊ ውቅያኖስ, ኣንታርክቲካ, ውቅያኖሳት
ህጻናት: 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
ኣብ ዱር ዘሎ ኩነታቱ: Least Concern (IUCN Red List)1
ሓደጋ ንሰባት: 1 / 5: ቀሊል3

ሓቅታት ካበይ ይመጹ

Port Jackson shark (Wikipedia (CC BY-SA 4.0))
Heterodontus portusjacksoni (iNaturalist): ኣስማትን ምምዳብን።
Venom Wiki: ደረጃ ሓደጋ፣ ልሙድ ዓቐንን ግምት ቅልጣፈን ናትና እዮም። ብኸመይ ከም እነውጽኦም ርአ፦ ሓደጋ ብኸመይ ንግምግም.

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