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Ikhathuni ka-Short-spined crown-of-thorns starfish
Inombolo 1277 kwezi-1 402

Short-spined crown-of-thorns starfish

Acanthaster brevispinus
Malunga negama: 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
Kubuhlungu njeMusa ukuchukumisaKubuhlungu, kodwa akusayi kukwenzakalisa kakhulu.
Ii-sea urchin, iinkwenkwezi zolwandle neentshulube Amava anetyhefuSitya: Kancinci kwento nganye
Ingozi ebantwini: KubuhlunguKunokuba buhlungu ngokwenene, kodwa phantse akusoze kube kubi kakhulu.

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

Sihlala
Philippines, Great Barrier Reef region (Australia) and Seychelles, across a wide area of the tropics and subtropics1
uLwandlekazi lwaseIndiya, uLwandlekazi lwePasifiki, uLwandle lweCoral, uLwandle lwePhilippines
Ekhaya
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
Ubude
35 cm (1,1 ft)3
ubungakanani obuqhelekileyo besilwanyana esikhulileyo
Esona santya siphezulu
malunga ne-0,02 km/h (0,01 mph)
Ukuqubha, uqikelelo nje
Sitya ntoni?
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
Ngokwenene!Ifoto ka-Short-spined crown-of-thorns starfish
Short-spined crown-of-thorns starfish. Ifoto: Matt Kieffer. CC BY-SA 4.0, iNaturalist.

Indlela yokusiqaphela

  • 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

Sidla ngokubhidaniswa no: 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

Amandla etyhefu yokuluma nokuhlaba

Amava anetyhefu

Amava abukhali aphethe ityhefu. Ukusinyathela okanye ukusibamba kubuhlungu.

Siyingozi kangakanani ebantwini?

Ingozi ebantwini: KubuhlunguKunokuba buhlungu ngokwenene, kodwa phantse akusoze kube kubi kakhulu.

Ukuba amava aso ayakugwaza

  • Faka inxeba emanzini ashushu, ashushu kangangoko umntu angakwazi ukunyamezela ngaphandle kokutshiswa, kwaye ufumane uncedo lwezonyango ukuze kususwe amava. Musa ukuwemba ngokwakho.

Soloko utsalela inombolo kaxakeka kuqala (112, 000, 911). Esi sisikhokelo soncedo lokuqala ngokubanzi, asilocebiso lwezonyango. Iziseko zoncedo lokuqala

Hlala ukhuselekile

  • Ungaze uchukumise, ubambe okanye uqhule isilwanyana sasendle, nokuba sincinci, kwaye nokuba sibonakala silele okanye sifile.
  • Sinike indawo. Ukuba udibana naso, hlala uzolile, buyela umva kancinci kwaye usiyeke sihambe ngendlela yaso.
  • Ukuba amava aso ayakugwaza: hlala uzolile, musa ukushukuma, tsalela inombolo kaxakeka (112, 000, 911) okanye uye esibhedlele ngokukhawuleza. Khumbula ukuba sasikhangeleka njani, ifoto iyanceda.

Asikuzingeli. Sisebenzisa ityhefu yaso ukubamba ukutya okanye ukuzikhusela, kwaye singakhetha ukuzimela. Okungakumbi malunga nokuhlala ukhuselekile

Phi emhlabeni?

IAfrikaIAsiyaIYurophuuMntla MelikauMzantsi MelikaIOstreliya neOceaniauLwandlekazi lwePasifikiuLwandlekazi lwaseIndiyauLwandle lweCoraluLwandle lwePhilippines

Sikhulu kangakanani?

Side kangakanani?

Short-spined crown-of-thorns starfish malunga ne-35 cm ubude (1,1 ft)Ibhanana malunga ne-18 cm (7,1 in)Ikati yasekhaya malunga ne-50 cm (1,6 ft)
ubude obulingana neebhloko zokudlala zokwakha eziyi-11 zilandelelanasicotha kunenkumba yasegadini

U-Short-spined crown-of-thorns starfish mkhulu kangakanani xa uthelekisa NAWE?

Zizibalo nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwa naphi na.

Sikhawuleza kangakanani?

kufanelekile ukwazi

Iinyaniso

1

It catches scallops, which are fast swimmers, by sneaking up on them and trapping them under its body.1

2

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

3

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

4

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

Kwiingcali zetyhefu

Igama lenzululwazi
Acanthaster brevispinus
Iqela
Ii-sea urchin, iinkwenkwezi zolwandle neentshulube
Usapho
Acanthasteridae2
Ucwangco
Valvatida
Amazwekazi
uLwandlekazi lwaseIndiya, uLwandlekazi lwePasifiki, uLwandle lweCoral, uLwandle lwePhilippines, Iilwandlekazi
Iintsana
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
Ingozi ebantwini
2 / 5: Kubuhlungu3

Apho iinyaniso zivela khona

  1. Acanthaster brevispinus (Wikipedia (CC BY-SA 4.0))
  2. Acanthaster brevispinus (iNaturalist): amagama nokuhlelwa.
  3. Venom Wiki: inqanaba lengozi, ubungakanani obuqhelekileyo noqikelelo lwesantya zezethu. Bona indlela esizifumana ngayo: Indlela esilinganisa ngayo ingozi.

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