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Black long-spined urchin

Diadema setosum

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.

The black long-spined urchin is a sea urchin with very long, hollow spines. It lives on coral reefs, sand flats and seagrass beds across the Indo-Pacific, and it is one of the most widespread sea urchins in that region. Its spines can deliver a mild venom, so it is best to watch where you put your feet.1

Ó ń gbé ní

Indo-Pacific region, from the Red Sea and east Africa to Australia and Japan; also found in the Mediterranean off Turkey after introduction1

Òkun Íńdíà, Òkun Pàsífíìkì, Òkun Pupa, Òkun Coral, Òkun Fílípínì, Òkun Arébíà àti Ìyawọlẹ̀ Òkun Páṣíà, Òkun Tímọ̀ àti Òkun Àráfúrà, Ìyawọlẹ̀ Òkun Bẹ̀ngál

Ilé

Commonly found on coral reefs, but also on sand flats and in seagrass beds. In Hong Kong it is found on rocky reefs, where it can be very numerous. People most often meet it by stepping on it in shallow water.1

Gígùn

7 cm (2.8 in)1

Ìwúwo

35 g sí 80 g (1.2 oz sí 2.8 oz)1

Ìyára gíga jùlọ

nǹkan bí 0.02 km/h (0.01 mph)

Lílúwẹ̀ẹ́, àfojúbù

Kí ni ó máa ń jẹ?

It is a prolific grazer that feeds on many kinds of algae common on tropical coral reefs.1

Fọ́tò Black long-spined urchin — Black long-spined urchin. Fọ́tò: Quartl. CC BY-SA 4.0, iNaturalist.

Bí o ṣe lè dá a mọ̀

Black, near-spherical body (test) with extremely long, narrow, hollow spines, often black but sometimes brown-banded1
Five white spots on the body, which separate it from other Diadema species1
A bright orange ring around the periproctal cone (the 'anal cone'), which is often mistaken for an eye1
Bluish spots on the genital plates and a line of blue spots along the body1
Adults are no more than 70 mm across the body and about 40 mm high1

A sábà máa ń ṣì í mọ̀ sí: Other Diadema species are similar in shape and spines, but they lack the five white spots that mark this species. Its orange ring and blue spots also help to tell it apart.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?

The spines are hollow and contain a mild venom. The toxin mostly causes swelling and pain, which spreads gradually over several hours. The venom is not fatal to humans. The spines themselves are a bigger problem, because they are brittle and needle-like, break off in flesh and are difficult to remove.1

Báwo ló ṣe léwu tó fún ènìyàn?

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

The venom is only mild, and the species is not considered a serious threat to humans. Stepping on it can cause painful stings.1

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

When threatened by a sudden impact or by spines snapping, it rapidly flips its body over and 'runs' on the tips of its longest spines.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

Níbo ní ayé?

Áfíríkà Éṣíà Yúróòpù Àríwá Amẹ́ríkà Gúúsù Amẹ́ríkà Ọsirélíà àti Òṣéáníà Òkun Pàsífíìkì Òkun Íńdíà Òkun Pupa Òkun Coral Òkun Fílípínì Òkun Arébíà àti Ìyawọlẹ̀ Òkun Páṣíà Òkun Tímọ̀ àti Òkun Àráfúrà Ìyawọlẹ̀ Òkun Bẹ̀ngál

Báwo ló ṣe tóbi tó?

Báwo ló ṣe gùn tó?

Báwo ló ṣe wúwo tó?

ó wúwo tó pínì ìwé 80

ó gùn tó bíríkì ìṣeré 2 tí a tò sí ìlà kanó lọ́ra ju ìgbín inú ọgbà lọ

Báwo ni Black 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?

Ẹṣin òkun nǹkan bí 0.0015 km/h (0 mph)

Black long-spined urchin nǹkan bí 0.02 km/h (0.01 mph)

Ìgbín inú ọgbà nǹkan bí 0.05 km/h (0.03 mph)

ó yẹ ní mímọ̀

Òtítọ́

It can move 760 mm in just 7 seconds by rolling and walking on the tips of its spines.1

It has no eye, but it has a diffuse light-sensing system that lets it detect light levels and the size and colour of objects.1

In 2006, living specimens were found off Turkey, making it the first invasive Erythrean sea urchin recorded in the Mediterranean.1

Goose barnacles of the genus Microlepas are known to live on it as parasites.1

It is considered one of the oldest living species in its genus, Diadema.1

Olùfọ́ àròsọ

Àròsọ: Black long-spined urchins are deadly and their stings can kill people.

Òtítọ́: Their venom is mild and is not fatal to humans. The main problems are pain, swelling and spines that break off in the skin.1

Fún àwọn amòye oró

Orúkọ sáyẹ́ǹsì: Diadema setosum
Ẹgbẹ́: Sea urchin, ẹja ìràwọ̀ àti kòkòrò inú òkun
Ìdílé: Diadematidae2
Ètò: Diadematoida
Àwọn kọ́ńtínẹ́ńtì: Òkun Íńdíà, Òkun Pàsífíìkì, Òkun Pupa, Òkun Coral, Òkun Fílípínì, Òkun Arébíà àti Ìyawọlẹ̀ Òkun Páṣíà, Òkun Tímọ̀ àti Òkun Àráfúrà, Ìyawọlẹ̀ Òkun Bẹ̀ngál, Àwọn òkun ńlá
Àwọn ọmọ: It is a broadcast spawner, releasing eggs and sperm into the water. Spawning happens seasonally or year-round depending on the location, and in some places it follows the full moon.1
Ewu fún ènìyàn: 2 / 5: Ó ń dunni3

Ibi tí àwọn òtítọ́ ti wá

Diadema setosum (Wikipedia (CC BY-SA 4.0))
Diadema setosum (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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