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Inombolo 1276 kwezi-1 402

Crown-of-thorns starfish

Acanthaster planci

Malunga negama: Its common name comes from the long, thornlike spines that cover its upper surface, which resemble the biblical crown of thorns.1

Kufuna ugqirhaMusa ukuchukumisaKunqabile ukuba sibulale, kodwa ukuba amava aso ayakugwaza, yiya kugqirha.

Ii-sea urchin, iinkwenkwezi zolwandle neentshulube

Amava anetyhefuSitya: Inyama

Ingozi ebantwini: Kubi kakhuluUkuba amava aso ayakugwaza, yiya kugqirha. Ukufa kunqabe kakhulu.

The crown-of-thorns starfish is a large starfish with long, sharp spines that look like a crown of thorns. It lives on coral reefs across the Indo-Pacific, from the Red Sea to the west coast of Central America, and it is most common around Australia. It feeds on hard coral, so it can change the reefs it lives on.1

Sihlala

Indo-Pacific: Red Sea, East African coast, Indian Ocean, Pacific Ocean to west coast of Central America; most common around Australia1

uLwandlekazi lwaseIndiya, uLwandlekazi lwePasifiki, uLwandle oluBomvu, uLwandle lweCoral, uLwandle lwePhilippines, uLwandle lwaseMzantsi China, uLwandle lweAndaman, uLwandle lwaseArabhiya neGulf yasePersi, uLwandle lweTimor ne-Arafura, iBhayi yaseBengal

Ekhaya

It lives where coral reefs or hard coral communities occur in tropical and subtropical waters.1

Ubude

25 cm ukuya ku-35 cm (9,8 in ukuya ku-1,1 ft)1

Esona santya siphezulu

malunga ne-0,02 km/h (0,01 mph)

Ukuqubha, uqikelelo nje

Sitya ntoni?

It is a coral predator that climbs onto living coral using its tube feet and pushes its stomach out over the coral. Digestive enzymes turn the coral tissue into liquid, which it absorbs, leaving a white scar of bare skeleton.1

Ifoto ka-Crown-of-thorns starfish — Crown-of-thorns starfish. Ifoto: John Hepburn. CC BY 4.0, Wikimedia Commons.

Indlela yokusiqaphela

Adults are normally 25 to 35 cm across.1
Up to 21 arms, with long, stiff, very sharp spines that are 4 to 5 cm long on the top and sides of the arms.1
Colour varies with diet or region: purple, purple-blue, reddish grey or brown with red spine tips, or green with yellow spine tips.1
The body is flexible and can bend and twist around coral surfaces.1

Sidla ngokubhidaniswa no: A close relative, Acanthaster brevispinus, lives on soft sea floors at moderate depths rather than on coral reefs. The two are considered sibling species.1

Amandla etyhefu yokuluma nokuhlaba

Amava anetyhefu

Amava abukhali aphethe ityhefu. Ukusinyathela okanye ukusibamba kubuhlungu.

Ityhefu yaso yokuluma okanye yokuhlaba yenza ntoni?

The spines do not inject venom. When they pierce skin, tissue containing saponins (detergent-like chemicals) is left in the wound. In humans this causes a sharp, stinging pain that can last several hours, persistent bleeding, and nausea and swelling that may last a week or more.1

Siyingozi kangakanani ebantwini?

Ingozi ebantwini: Kubi kakhuluUkuba amava aso ayakugwaza, yiya kugqirha. Ukufa kunqabe kakhulu.

The spines can cause sharp pain, long-lasting bleeding, nausea and swelling. Brittle spines can break off and stay in the tissue.1

Ukuba amava aso ayakugwaza

Spines that become embedded in the tissue must be removed surgically.1
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?

IAfrika IAsiya IYurophu uMntla Melika uMzantsi Melika IOstreliya neOceania uLwandlekazi lwePasifiki uLwandlekazi lwaseIndiya uLwandle oluBomvu uLwandle lweCoral uLwandle lwaseMzantsi China uLwandle lwePhilippines uLwandle lweAndaman uLwandle lwaseArabhiya neGulf yasePersi uLwandle lweTimor ne-Arafura iBhayi yaseBengal

Sikhulu kangakanani?

Side kangakanani?

ubude obulingana neebhloko zokudlala zokwakha eziyi-11 zilandelelanasicotha kunenkumba yasegadini

U-Crown-of-thorns starfish mkhulu kangakanani xa uthelekisa NAWE?

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

Sikhawuleza kangakanani?

Ihashe lolwandle malunga ne-0,0015 km/h (0 mph)

Crown-of-thorns starfish malunga ne-0,02 km/h (0,01 mph)

Inkumba yasegadini malunga ne-0,05 km/h (0,03 mph)

kufanelekile ukwazi

Iinyaniso

An individual starfish can consume up to 6 square metres of living coral reef per year.1

When taken out of water, its soft body ruptures and collapses, but its spines can recover their shape if it is put back in the water while still alive.1

Its body contains detergent-like saponins, so keeping starfish in small volumes of water with aeration produces large amounts of foam.1

It is one of the largest starfish in the world.1

It has lost the usual five-fold symmetry of starfish as it grew more arms, although it begins life with five-fold symmetry.1

Umqhekezi weentsomi

Intsomi: Its spines inject venom like a snake or stinging animal.

Inyaniso: It has no mechanism for injecting toxin. Its spines pierce skin and leave saponin-containing tissue in the wound.1

Kwiingcali zetyhefu

Igama lenzululwazi: Acanthaster planci
Iqela: Ii-sea urchin, iinkwenkwezi zolwandle neentshulube
Usapho: Acanthasteridae2
Ucwangco: Valvatida
Amazwekazi: uLwandlekazi lwaseIndiya, uLwandlekazi lwePasifiki, uLwandle oluBomvu, uLwandle lweCoral, uLwandle lwePhilippines, uLwandle lwaseMzantsi China, uLwandle lweAndaman, uLwandle lwaseArabhiya neGulf yasePersi, uLwandle lweTimor ne-Arafura, iBhayi yaseBengal, Iilwandlekazi
Iintsana: It releases vast amounts of eggs and sperm (gametes) during mass spawning events in summer, and the eggs contain saponins similar to those in adults.1
Ingozi ebantwini: 3 / 5: Kubi kakhulu3

Apho iinyaniso zivela khona

Crown-of-thorns starfish (Wikipedia (CC BY-SA 4.0))
Acanthaster planci (iNaturalist): amagama nokuhlelwa.
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