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Spiny dogfish

Squalus acanthias

Nípa orúkọ náà: The species name acanthias refers to the shark's two spines.1

Ó kàn ń dunniMá ṣe fọwọ́ kàn ánÓ ń dunni, ṣùgbọ́n kò ní ṣe ọ́ léṣe gidigidi.

Ẹja olóró

Ẹ̀gún olóróOúnjẹ rẹ̀: Ẹran

Ewu fún ènìyàn: Ó ń dunniÓ lè dunni gan-an, ṣùgbọ́n kì í fẹ́rẹ̀ẹ́ le rárá.

The spiny dogfish is a small, well-known shark with a sharp spine in front of each of its two back fins. It lives in shallow and offshore waters in most parts of the world, especially cooler seas, and it is hunted heavily for food. Its spines are its main form of defence.1

Ó ń gbé ní

Shallow and offshore waters in most parts of the world, especially temperate seas; the northern Pacific population is now a separate species, the Pacific spiny dogfish1

Òkun Àtìláńtíìkì, Òkun Pàsífíìkì, Òkun Íńdíà, Òkun Mẹditaréníà, Òkun Gúúsù, Òkun Áktíkì, Antáktíkà, Òkun Àríwá

Ilé

It lives in shallow waters and further offshore, and is described as bottom-dwelling. It is commonly found at depths of about 50 to 149 m, and has been found deeper than 700 m. Commercial fishing brings it to fish markets, fish and chip shops and restaurants.1

Gígùn

60 cm sí 84 cm (2 ft sí 2.8 ft)1

Ìyára gíga jùlọ

nǹkan bí 20 km/h (12 mph)

Lílúwẹ̀ẹ́, àfojúbù

Kí ni ó máa ń jẹ?

It eats squid, fish, crab, jellyfish, sea cucumber, shrimp and other invertebrates. It hunts in packs that can number into the thousands and is described as an aggressive hunter.1

Fọ́tò Spiny dogfish — Spiny dogfish. Fọ́tò: Ecomare/Salko de Wolf. CC BY-SA 4.0, iNaturalist.

Bí o ṣe lè dá a mọ̀

Two spines, one in front of each dorsal (back) fin.1
No anal fin on the underside.1
White spots along its back.1
Greyish brown on both sexes, with countershading (darker on top, paler underneath).1
Asymmetrical tail lobes, forming a heterocercal tail (the upper lobe is larger).1

A sábà máa ń ṣì í mọ̀ sí: Several shark species share the names dogfish, spurdog and piked dogfish. Spiny dogfish are told apart by having two spines, one in front of each dorsal fin, and no anal fin.1

Agbára oró

Ẹ̀gún olóró

Ẹ̀gún mímú ló ń gbé oró náà. Títẹ̀ ẹ́ mọ́lẹ̀ tàbí dídì í mú máa ń dunni.

Kí ni oró rẹ̀ máa ń ṣe?

Its dorsal spines secrete a mild venom. The spines are driven into an attacker when the shark arches its back.1

Báwo ló ṣe léwu tó fún ènìyàn?

Ewu fún ènìyàn: Ó ń dunniÓ lè dunni gan-an, ṣùgbọ́n kì í fẹ́rẹ̀ẹ́ le rárá.

Kí ni ó máa ń ṣe nígbà tí ẹ̀rù bá bà á?

If it is caught, it arches its back to pierce its captor with the spines near its dorsal fins.1

Bí ẹ̀gún rẹ̀ bá gún ọ

Fi ọgbẹ́ náà sínú omi gbígbóná, tó gbóná tó bí ẹni náà ṣe lè fara dà á láìjóná (fi ọwọ́ ara rẹ dán an wò), fún ìṣẹ́jú 30 sí 90. Wá ìrànlọ́wọ́ ìṣègùn, pàápàá fún ẹja òkúta àti stingray.

Máa kọ́kọ́ pe nọ́ńbà pàjáwìrì rẹ nígbà gbogbo (112, 000, 911). Èyí jẹ́ ìtọ́sọ́nà ìtọ́jú àkọ́kọ́ gbogbogbò, kì í ṣe ìmọ̀ràn ìṣègùn. Ìpìlẹ̀ ìtọ́jú àkọ́kọ́

Wà láìléwu

Má ṣe fọwọ́ kan, mú tàbí yọ ẹranko igbó lẹ́nu láéláé, kódà bí ó bá kéré, kódà bí ó bá dà bí ẹni pé ó ń sùn tàbí ó ti kú.
Fún un ní àyè. Bí o bá pàdé ọ̀kan, farabalẹ̀, sẹ́yìn díẹ̀díẹ̀ kí o sì jẹ́ kí ó máa bá ọ̀nà rẹ̀ lọ.
Bí ẹ̀gún rẹ̀ bá gún ọ: farabalẹ̀, má ṣe mira, pe nọ́ńbà pàjáwìrì rẹ (112, 000, 911) tàbí lọ sí ilé ìwòsàn kíákíá. Rántí bí ó ṣe rí, fọ́tò máa ń ṣèrànwọ́.

Kò wá ọ kiri láti ṣe ọ́ léṣe. Ó ń lo oró rẹ̀ láti mú oúnjẹ tàbí láti dáàbò bo ara rẹ̀, ó sì fẹ́ràn láti farapamọ́ jù. Sí i nípa wíwà láìléwu

Níbo ní ayé?

Áfíríkà Éṣíà Yúróòpù Àríwá Amẹ́ríkà Gúúsù Amẹ́ríkà Ọsirélíà àti Òṣéáníà Antáktíkà Òkun Pàsífíìkì Òkun Àtìláńtíìkì Òkun Íńdíà Òkun Áktíkì Òkun Gúúsù Òkun Mẹditaréníà Òkun Àríwá

Báwo ló ṣe tóbi tó?

Báwo ló ṣe gùn tó?

ó gùn tó ológbò ilé 1.5 láti imú dé ìrùó gùn tó ọ̀gẹ̀dẹ̀ 5 tí a tò tẹ̀léralè lúwẹ̀ẹ́ gígùn adágún ìwẹ̀ ńlá (50 m) ní ìṣẹ́jú-àáyá 9

Báwo ni Spiny dogfish ṣe tóbi tó tí a bá fi wé ÌWỌ?

Ìṣirò nìkan nínú bráwúsà rẹ. A kò fi ohunkóhun pamọ́, a kò sì fi ránṣẹ́ sí ibikíbi.

Báwo ló ṣe yára tó?

Olùwẹ̀ Olympic nǹkan bí 8 km/h (5 mph)

Spiny dogfish nǹkan bí 20 km/h (12 mph)

Ẹja dolphin tó ń sá pẹ̀lú gbogbo agbára nǹkan bí 35 km/h (22 mph)

ó yẹ ní mímọ̀

Òtítọ́

Dogfish sharks have one of the longest pregnancies of any organism, lasting around 18 to 24 months.1

Spiny dogfish hunt in packs that can range up into the thousands.1

In England, dogfish are sold in fish and chip shops as 'huss', and used to be sold as 'rock salmon' until that term was outlawed.1

Spiny dogfish are popular dissection specimens in high schools and universities because they are easy to get and have small, cartilaginous skulls.1

Squalus acanthias fossils from the Miocene of Denmark and the Netherlands date from about 11 million years ago.1

Males are identified by a pair of modified pelvic fins called claspers, which they use to transfer sperm to the female.1

Olùfọ́ àròsọ

Àròsọ: All animals called dogfish or spurdog are the same species.

Òtítọ́: These common names can apply to several species. Spiny dogfish are identified by their two spines, one in front of each dorsal fin, and by having no anal fin.1

Fún àwọn amòye oró

Orúkọ sáyẹ́ǹsì: Squalus acanthias
Ẹgbẹ́: Ẹja olóró
Ìdílé: Squalidae2
Ètò: Squaliformes
Àwọn kọ́ńtínẹ́ńtì: Òkun Àtìláńtíìkì, Òkun Pàsífíìkì, Òkun Íńdíà, Òkun Mẹditaréníà, Òkun Gúúsù, Òkun Áktíkì, Antáktíkà, Òkun Àríwá, Àwọn òkun ńlá
Àwọn ọmọ: The eggs develop inside the mother and the pups are born alive, with about 5 to 6 in each litter; gestation can last from around 18 to 24 months, one of the longest of any organism.1
Bí ó ṣe ń ṣe nínú igbó: Vulnerable globally; Critically endangered in the Northeast Atlantic1
Ewu fún ènìyàn: 2 / 5: Ó ń dunni3

Ibi tí àwọn òtítọ́ ti wá

Spiny dogfish (Wikipedia (CC BY-SA 4.0))
Squalus acanthias (iNaturalist): orúkọ àti ìpínsísọ̀rí.
Venom Wiki: ìpele ewu, ìtóbi déédé àti àfojúbù ìyára jẹ́ tiwa. Wo bí a ṣe ń ṣírò wọn: Bí a ṣe ń díwọ̀n ewu.

Gbogbo òtítọ́ ojú-ìwé yìí ní nọ́ńbà tó tọ́ka sí orísun rẹ̀. Bí a bá ṣe àṣìṣe, má bínú, olólùfẹ́ ẹranko ni wá, kì í ṣe ìwé ìròyìn sáyẹ́ǹsì. Sọ fún wa ní [email protected] a ó sì tún un ṣe.

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