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Short-spined crown-of-thorns starfish

Acanthaster brevispinus

Nípa orúkọ náà: The genus name Acanthaster comes from Ancient Greek words meaning spine or thorn and star, and the species name brevispinus is Latin for short spine.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: Díẹ̀ nínú ohun gbogbo

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

The short-spined crown-of-thorns starfish is a large, spiny sea star that lives on the sea floor in parts of the western Pacific and western Indian Ocean. It belongs to a genus with only two species, and it is less well known than its relative, the common crown-of-thorns starfish. Its many arms and dense spines make it easy to tell apart from typical starfish.1

Ó ń gbé ní

Philippines, Great Barrier Reef region (Australia) and Seychelles, across a wide area of the tropics and subtropics1

Òkun Íńdíà, Òkun Pàsífíìkì, Òkun Coral, Òkun Fílípínì

Ilé

It has been found at moderate depths, from 18 m to 63 m. All known specimens came from soft sandy sea floor rather than hard coral reef. The Great Barrier Reef specimens were caught as unwanted bycatch by trawl nets off Townsville.1

Gígùn

35 cm (1.1 ft)3

ìtóbi àgbàlagbà déédé

Ìyára gíga jùlọ

nǹkan bí 0.02 km/h (0.01 mph)

Lílúwẹ̀ẹ́, àfojúbù

Kí ni ó máa ń jẹ?

Scallops appear to be an important part of its diet. It creeps up on a scallop over the hinge, where it is less visible, and traps the scallop under its disc. Laboratory observations also show that it eats a wider range of food.1

Fọ́tò Short-spined crown-of-thorns starfish — Short-spined crown-of-thorns starfish. Fọ́tò: Matt Kieffer. CC BY-SA 4.0, iNaturalist.

Bí o ṣe lè dá a mọ̀

Dense, blunt spines cover the upper surface of its central disc.1
The upper surface is purple-brown and gets darker towards the arms.1
Darker blotches run around the edge of the disc and along the arms, with a large blotch at the base of each arm.1
Pale marks sit on the disc between each arm.1
Its arm spines are shorter than those of the common crown-of-thorns starfish.1

A sábà máa ń ṣì í mọ̀ sí: It is most often confused with the common crown-of-thorns starfish, Acanthaster planci. The short-spined species has blunt spines on its upper surface, short pedicellaria (tiny pincer-like structures), pale marks between the arms and shorter arm spines. The common species has longer arm spines and lacks the pale marks.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.

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 Coral Òkun Fílípínì

Báwo ló ṣe tóbi tó?

Báwo ló ṣe gùn tó?

ó gùn tó bíríkì ìṣeré 11 tí a tò sí ìlà kanó lọ́ra ju ìgbín inú ọgbà lọ

Báwo ni Short-spined crown-of-thorns starfish 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)

Short-spined crown-of-thorns starfish 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 catches scallops, which are fast swimmers, by sneaking up on them and trapping them under its body.1

It has many arms rather than the usual five, so it has lost the five-fold symmetry typical of starfish, although it starts life with five-fold symmetry.1

Its feeding posture, with the body arched over the prey, is so distinct that even the taste of scallop meat triggers it.1

In a 1973 laboratory experiment, it was crossed with the common crown-of-thorns starfish, and the hybrids reached sexual maturity at the end of their second year.1

Fún àwọn amòye oró

Orúkọ sáyẹ́ǹsì: Acanthaster brevispinus
Ẹgbẹ́: Sea urchin, ẹja ìràwọ̀ àti kòkòrò inú òkun
Ìdílé: Acanthasteridae2
Ètò: Valvatida
Àwọn kọ́ńtínẹ́ńtì: Òkun Íńdíà, Òkun Pàsífíìkì, Òkun Coral, Òkun Fílípínì, Àwọn òkun ńlá
Àwọn ọmọ: It reproduces by releasing eggs and sperm, and the young develop through bipinnaria and brachiolaria larval stages before settling as tiny five-armed starfish about 0.4 to 1 mm across.1
Ewu fún ènìyàn: 2 / 5: Ó ń dunni3

Ibi tí àwọn òtítọ́ ti wá

Acanthaster brevispinus (Wikipedia (CC BY-SA 4.0))
Acanthaster brevispinus (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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