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Dusky spinefoot

Siganus luridus

Gbasara aha ya: Its scientific name, luridus, means 'pale yellow'. The collector of the first specimen gave it this name.1

Naanị na-afụ ụfụEmetụla ya akaỌ na-afụ ụfụ, mana ọ gaghị emerụ gị ahụ nke ukwuu.

Azụ na-agba nsị

Mkpu na-agba nsịNri ya: Osisi

Ihe ize ndụ nye mmadụ: Na-afụ ụfụỌ nwere ike ịfụ ụfụ nke ukwuu, mana ọ naghị adịkarị njọ.

The dusky spinefoot is a rabbitfish with venomous spines on its fins. It is native to the western Indian Ocean and has spread into the Mediterranean Sea through the Suez Canal. People also catch it as a food fish.1

Ebe obibi

Western Indian Ocean, from Mozambique north to the Red Sea, and the Mediterranean Sea1

Oké Osimiri India, Osimiri Uhie, Osimiri Mediterenian, Osimiri Arabia na Ọwara Peshia

Ụlọ

It lives at depths of 2 to 40 metres, in waters over hard surfaces such as coral and rocky reefs. Adults are often seen in schools, though single fish also occur.1

Ogologo

30 cm (1 ft)1

Ọsọ kacha elu

ihe dị ka 5 km/h (3.1 mph)

Igwu mmiri, nchepụta

Gịnị ka ọ na-eri?

Adults graze on algae from the seabed. They feed on larger brown algae and other large water plants called macrophytes.1

Foto Dusky spinefoot — Dusky spinefoot. Foto: Roberto Pillon. CC BY 3.0, Wikimedia Commons.

Otú ị ga-esi mata ya

Compressed (flattened from side to side) body1
Normally olive green to dark brown, with a mottled pattern1
Pale yellow pectoral fins and dark bars on the tail fin1
Dorsal fin with 13 to 14 spines, and a single row of incisor-like teeth in the jaws1
Usually about 20 cm long, and up to 30 cm1

Ike nsị

Mkpu na-agba nsị

Mkpu dị nkọ na-ebu nsị ahụ. Ịzọ ya ụkwụ ma ọ bụ ijide ya na-afụ ụfụ.

Gịnị ka nsị ọ na-agba na-eme?

The spines on its fins produce venom. In a study of a related rabbitfish, the venom was found to be similar to stonefish venom.1

Kedu otú o si dị egwu nye mmadụ?

Ihe ize ndụ nye mmadụ: Na-afụ ụfụỌ nwere ike ịfụ ụfụ nke ukwuu, mana ọ naghị adịkarị njọ.

When eaten, it has been linked to cases of mild ciguatera-like poisoning. Ciguatera is a form of food poisoning caused by toxins in some reef fish.1

Gịnị ka ọ na-eme mgbe ụjọ tụrụ ya?

When threatened, it stops suddenly and raises its dorsal, anal and pelvic fins, showing an array of venomous spines around its body.1

Ọ bụrụ na mkpu ya dụrụ gị

Tinye ọnya ahụ n'ime mmiri ọkụ, nke ọkụ dị ka onye ahụ nwere ike ịnagide n'ere ya ọkụ (jiri aka gị nwalee ya), ruo nkeji 30 ruo 90. Chọọ enyemaka ọgwụ, karịsịa maka azụ nkume (stonefish) na stingray.

Na-ebu ụzọ kpọọ nọmba mberede gị mgbe niile (112, 000, 911). Nke a bụ ndụmọdụ enyemaka mbụ n'ozuzu, ọ bụghị ndụmọdụ ọgwụ. Isi ihe enyemaka mbụ

Nọrọ na nchekwa

Emetụla anụ ọhịa aka, ejidela ya, emekwala ya ihe ọjọọ, ọbụna obere, ọbụna ma ọ dị ka ọ na-ehi ụra ma ọ bụ nwụọ anwụ.
Nye ya ohere. Ọ bụrụ na ị zutere otu, dị jụụ, laghachi azụ nwayọ, hapụ ya ka ọ gaa ụzọ ya.
Ọ bụrụ na mkpu ya dụrụ gị: dị jụụ, emegharịla ahụ, kpọọ nọmba mberede gị (112, 000, 911) ma ọ bụ gaa ụlọ ọgwụ ngwa ngwa. Cheta ka o si dị, foto na-enye aka.

Ọ naghị achụ gị. Ọ na-eji nsị ya ejide nri ma ọ bụ chebe onwe ya, ọ ga-akakwa mma n'anya ya ịzo onwe ya. Ihe ndị ọzọ gbasara ịnọ na nchekwa

Ebee n'ụwa?

Afrịka Eshia Yurop Ugwu Amerika Ndịda Amerika Ọstrelia na Oshenia Oké Osimiri India Osimiri Mediterenian Osimiri Uhie Osimiri Arabia na Ọwara Peshia

Ọ hà aṅaa?

Kedu otú o si dị ogologo?

dị ogologo dị ka blọk egwuregwu 9 n'ahịrịnwere ike igwu mmiri ogologo nnukwu ọdọ igwu mmiri (50 m) n'ime sekọnd 36

Kedu otú Dusky spinefoot si hà ma e jiri ya tụnyere GỊ?

Naanị mgbakọ na mwepụ n'ime browser gị. Ọ dịghị ihe echekwara ma ọ bụ ezigara ebe ọ bụla.

Kedu otú o si agba ọsọ?

Mmadụ na-egwu mmiri ihe dị ka 3 km/h (1.9 mph)

Dusky spinefoot ihe dị ka 5 km/h (3.1 mph)

Onye igwu mmiri Olympic ihe dị ka 8 km/h (5 mph)

ọ dị mma ịmara

Eziokwu

Its spines are mainly a defence against predators. The highest predation pressure falls on its larvae and planktonic stages.1

It came to the Mediterranean through the Suez Canal. It was first recorded off Israel in 1955 and has since spread as far west as the French Mediterranean coast and the Adriatic Sea.1

It is a daytime feeder. At night it hides in cavities in the reef.1

It is an important fish for fisheries in the Mediterranean. In Kenya, it is caught mainly as bycatch.1

Maka ndị ọkachamara nsị

Aha sayensị: Siganus luridus
Otu: Azụ na-agba nsị
Ezinụlọ: Siganidae2
Usoro: Acanthuriformes
Kọntinent dị iche iche: Oké Osimiri India, Osimiri Uhie, Osimiri Mediterenian, Osimiri Arabia na Ọwara Peshia, Oké osimiri niile
Ụmụ ọhụrụ: It spawns in April and from June to August, when seawater is between 24 and 29 °C. The eggs and larvae drift in the plankton near the surface.1
Ihe ize ndụ nye mmadụ: 2 / 5: Na-afụ ụfụ3

Ebe eziokwu ndị a si

Dusky spinefoot (Wikipedia (CC BY-SA 4.0))
Siganus luridus (iNaturalist): aha na nhazi ọkwa.
Venom Wiki: ọkwa ihe ize ndụ, nha nkịtị na nchepụta ọsọ bụ nke anyị. Lee otú anyị si achọpụta ha: Otú anyị si atụ ihe ize ndụ.

Eziokwu ọ bụla dị na peeji a nwere nọmba na-egosi ebe o si. Ọ bụrụ na anyị mehiere ihe, ndo, anyị bụ ndị hụrụ anụmanụ n'anya, ọ bụghị akwụkwọ akụkọ sayensị. Gwa anyị na [email protected], anyị ga-edozi ya.

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