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Short-spined crown-of-thorns starfish

Acanthaster brevispinus

Kuhusu jina: 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

Inauma tuUsiguseInauma, lakini haitakudhuru vibaya.

Koche, nyota wa bahari na minyoo

Miiba yenye sumuHula: Kidogo cha kila kitu

Hatari kwa watu: InaumaInaweza kuuma sana, lakini karibu kamwe si jambo zito.

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

Anaishi

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

Bahari ya Hindi, Bahari ya Pasifiki, Bahari ya Matumbawe, Bahari ya Ufilipino

Nyumbani

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

Urefu

35 cm (1.1 ft)3

ukubwa wa kawaida wa mnyama mzima

Kasi ya juu

takriban km 0.02 kwa saa (maili 0.01 kwa saa)

Kuogelea, makadirio

Hula nini?

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

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

Jinsi ya kumtambua

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

Mara nyingi huchanganywa na: 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

Nguvu ya sumu

Miiba yenye sumu

Miiba mikali hubeba sumu. Kumkanyaga au kumshika kunauma.

Ana hatari gani kwa watu?

Hatari kwa watu: InaumaInaweza kuuma sana, lakini karibu kamwe si jambo zito.

Miiba yake ikikuchoma

Weka jeraha kwenye maji ya moto, moto kiasi ambacho mtu anaweza kuvumilia bila kuungua, na utafute msaada wa kitabibu kuondoa miiba. Usiichokonoe mwenyewe.

Daima piga namba ya dharura kwanza (112, 000, 911). Huu ni mwongozo wa jumla wa huduma ya kwanza, si ushauri wa kitabibu. Misingi ya huduma ya kwanza

Kaa salama

Kamwe usimguse, kumkamata wala kumchokoza mnyama wa porini, hata akiwa mdogo, na hata akionekana amelala au amekufa.
Mpe nafasi. Ukikutana naye, tulia, rudi nyuma polepole na umwache aende zake.
Miiba yake ikikuchoma: tulia, usitikisike, piga namba yako ya dharura (112, 000, 911) au nenda hospitali haraka. Kumbuka alivyoonekana, picha husaidia.

Hakuwindi wewe. Hutumia sumu yake kukamata chakula au kujilinda, na hupendelea zaidi kujificha. Zaidi kuhusu kukaa salama

Wapi duniani?

Afrika Asia Ulaya Amerika Kaskazini Amerika Kusini Australia na Oceania Bahari ya Pasifiki Bahari ya Hindi Bahari ya Matumbawe Bahari ya Ufilipino

Ana ukubwa gani?

Ana urefu gani?

urefu sawa na matofali 11 ya kuchezea yaliyopangwa mstaripolepole kuliko konokono wa bustanini

Short-spined crown-of-thorns starfish ana ukubwa gani ukilinganisha na WEWE?

Ni hesabu tu kwenye kivinjari chako. Hakuna kinachohifadhiwa wala kutumwa popote.

Ana kasi gani?

Farasi wa bahari takriban km 0.0015 kwa saa (0 mph)

Short-spined crown-of-thorns starfish takriban km 0.02 kwa saa (0.01 mph)

Konokono wa bustanini takriban km 0.05 kwa saa (0.03 mph)

inafaa kujua

Ukweli

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

Kwa wataalamu wa sumu

Jina la kisayansi: Acanthaster brevispinus
Kundi: Koche, nyota wa bahari na minyoo
Familia: Acanthasteridae2
Mpangilio: Valvatida
Mabara: Bahari ya Hindi, Bahari ya Pasifiki, Bahari ya Matumbawe, Bahari ya Ufilipino, Bahari kuu
Watoto: 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
Hatari kwa watu: 2 / 5: Inauma3

Ukweli unatoka wapi

Acanthaster brevispinus (Wikipedia (CC BY-SA 4.0))
Acanthaster brevispinus (iNaturalist): majina na uainishaji.
Venom Wiki: kiwango cha hatari, ukubwa wa kawaida na makadirio ya kasi ni yetu wenyewe. Ona jinsi tunavyovipata: Jinsi tunavyopima hatari.

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