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Àwòrán kátúùnù Savigny's long-spined urchin
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Savigny's long-spined urchin

Diadema savignyi
Nípa orúkọ náà: The species name honours Marie Jules César Savigny, a French zoologist who described many new marine species from the Mediterranean and Red Sea.1
Ó kàn ń dunniMá ṣe fọwọ́ kàn ánÓ ń dunni, ṣùgbọ́n kò ní ṣe ọ́ léṣe gidigidi.
Sea urchin, ẹja ìràwọ̀ àti kòkòrò inú òkun Ẹ̀gún olóróOúnjẹ rẹ̀: Ewéko
Ewu fún ènìyàn: Ó ń dunniÓ lè dunni gan-an, ṣùgbọ́n kì í fẹ́rẹ̀ẹ́ le rárá.

Savigny's long-spined urchin is a spiny sea animal that lives on reefs and in shallow lagoons. It has very long, thin spines that can grow up to 25 cm, and it comes out at night to graze on algae. Its spines are the part that can hurt people, so it is worth giving it plenty of room.1

Ó ń gbé ní
East coast of Africa, Red Sea, Indian Ocean, western Pacific, French Polynesia, Hawaii, New Caledonia and northern Australia1
Òkun Íńdíà, Òkun Pàsífíìkì, Òkun Pupa, Òkun Arébíà àti Ìyawọlẹ̀ Òkun Páṣíà, Òkun Tímọ̀ àti Òkun Àráfúrà, Ìyawọlẹ̀ Òkun Bẹ̀ngál
Ilé
It is found on mixed sandy, rocky and coral seabed, especially in places disturbed by storms or other natural events. It lives from the surface down to about 70 metres deep. It often hides in crevices or under boulders during the day.1
Gígùn
9 cm (3.5 in)1
Ìyára gíga jùlọ
nǹkan bí 0.02 km/h (0.01 mph)
Lílúwẹ̀ẹ́, àfojúbù
Kí ni ó máa ń jẹ?
It feeds at dusk on the algal mat that grows over the seabed, tearing it up as it grazes. This helps keep algae from overwhelming corals.1
Ní tòótọ́!Fọ́tò Savigny's long-spined urchin
Savigny's long-spined urchin. Fọ́tò: Anders Poulsen, Deep Blue (http://www.colours.dk/). CC BY-SA 3.0, Wikimedia Commons.

Bí o ṣe lè dá a mọ̀

  • Usually black, with a rounded body (called a test) up to about 9 cm across1
  • Long, thin, hollow spines that grow in tufts and can reach 25 cm; they are usually black but can be grey, dark brown or purple1
  • Juveniles may have bands of lighter and darker shades, and the occasional individual is completely white1
  • Iridescent green or blue lines around the interambulacral areas and around the periproct (the cone-shaped region surrounding the anus)1

A sábà máa ń ṣì í mọ̀ sí: It is very similar to Diadema setosum, which shares much of its range and often lives in the same groups. Savigny's long-spined urchin lacks the thin orange ring around the periproct that Diadema setosum has.1

Agbára oró

Ẹ̀gún olóró

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

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?

When a shadow falls on it, it angles its spines towards the possible attacker.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, kí o sì wá ìrànlọ́wọ́ ìṣègùn láti yọ ẹ̀gún náà. Má ṣe gbẹ́ wọn jáde fúnra rẹ.

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

Báwo ló ṣe tóbi tó?

Báwo ló ṣe gùn tó?

Savigny's long-spined urchin gígùn rẹ̀ tó nǹkan bí 9 cm (3.5 in)Pínì ìwé (paper clip) nǹkan bí 3 cm (1.2 in)Fóònù alágbèéká nǹkan bí 15 cm (5.9 in)
ó gùn tó bíríkì ìṣeré 3 tí a tò sí ìlà kanó lọ́ra ju ìgbín inú ọgbà lọ

Báwo ni Savigny's long-spined urchin 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?

ó yẹ ní mímọ̀

Òtítọ́

1

Its spines are brittle, thin and hollow, and grow in tufts that can be as long as 25 cm.1

2

Small fish such as cardinal fish, flatworms and shrimps sometimes shelter among its long spines.1

3

It spawns just after the full moon, while its close relative Diadema setosum mostly spawns around days eight to ten of the lunar cycle, which keeps the two species from interbreeding.1

4

Its grazing helps control algae, which might otherwise smother corals.1

5

It is nocturnal, hiding in crevices or under boulders by day, though several individuals sometimes huddle together in the open.1

6

Its predators include pufferfish, porcupinefish, lobsters and snails.1

Fún àwọn amòye oró

Orúkọ sáyẹ́ǹsì
Diadema savignyi
Ẹgbẹ́
Sea urchin, ẹja ìràwọ̀ àti kòkòrò inú òkun
Ìdílé
Diadematidae2
Ètò
Diadematoida
Àwọn kọ́ńtínẹ́ńtì
Òkun Íńdíà, Òkun Pàsífíìkì, Òkun Pupa, Òkun Arébíà àti Ìyawọlẹ̀ Òkun Páṣíà, Òkun Tímọ̀ àti Òkun Àráfúrà, Ìyawọlẹ̀ Òkun Bẹ̀ngál, Àwọn òkun ńlá
Àwọn ọmọ
It does not have live young. Instead it releases eggs and sperm into the water (spawning), mainly during the north-east monsoon period, peaking in May, and timed to the lunar cycle.1
Ewu fún ènìyàn
2 / 5: Ó ń dunni3

Ibi tí àwọn òtítọ́ ti wá

  1. Diadema savignyi (Wikipedia (CC BY-SA 4.0))
  2. Diadema savignyi (iNaturalist): orúkọ àti ìpínsísọ̀rí.
  3. 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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Sí i láti inú ẹgbẹ́ kan náà: Sea urchin, ẹja ìràwọ̀ àti kòkòrò inú òkun

Ó tún ń gbé ní: Òkun Íńdíà

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