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Crown-of-thorns starfish

Acanthaster planci

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

Ikufuna dokotalaUsakhudzeSiipha kawirikawiri, koma minga yake ikakubaya, pita kwa dokotala.

Nungu za m'nyanja, nyenyezi za m'nyanja ndi nyongolotsi

Minga yaululuImadya: Nyama

Ngozi kwa anthu: YoopsaMinga yake ikakubaya, pita kwa dokotala. Imfa ndi zosowa kwambiri.

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

Imakhala ku

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

Nyanja ya Indian, Nyanja ya Pacific, Nyanja Yofiira, Nyanja ya Coral, Nyanja ya Philippine, Nyanja ya South China, Nyanja ya Andaman, Nyanja ya Arabia ndi Gulf ya Persia, Nyanja ya Timor ndi Arafura, Nyanja ya Bengal

Kunyumba

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

Kutalika

25 cm mpaka 35 cm (9,8 in mpaka 1,1 ft)1

Liwiro lapamwamba

pafupifupi 0,02 km/h (0,01 mph)

Kusambira, kuyerekeza chabe

Imadya chiyani?

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

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

Mmene ungaizindikirire

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

Nthawi zambiri imasokonezedwa ndi: 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

Mphamvu ya ululu

Minga yaululu

Minga yakuthwa imanyamula ululu. Kuiponda kapena kuigwira kumapweteka.

Ululu wake umachita chiyani?

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

Ndi yoopsa bwanji kwa anthu?

Ngozi kwa anthu: YoopsaMinga yake ikakubaya, pita kwa dokotala. Imfa ndi zosowa kwambiri.

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

Minga yake ikakubaya

Spines that become embedded in the tissue must be removed surgically.1
Ika bala m'madzi otentha, otentha monga momwe munthuyo angapirire osapsa, ndipo peza thandizo la dokotala kuti achotse minga. Usaikumbe wekha.

Nthawi zonse yamba wayimbira nambala yadzidzidzi (112, 000, 911). Awa ndi malangizo wamba a chithandizo choyamba, osati malangizo a dokotala. Zoyambira za chithandizo choyamba

Khala wotetezeka

Usakhudze, kugwira kapena kuseweretsa nyama yakuthengo, ngakhale yaing'ono, ndipo ngakhale ikuoneka ngati yagona kapena yafa.
Ipatse malo. Ukakumana nayo, khala chete, bwerera m'mbuyo pang'onopang'ono ndipo uilole ipite njira yake.
Minga yake ikakubaya: khala chete, usasunthe, imbira nambala yadzidzidzi (112, 000, 911) kapena pita kuchipatala mwachangu. Kumbukira m'mene inkaonekera, chithunzi chimathandiza.

Sikufuna kukuvulaza. Imagwiritsa ntchito ululu wake kugwira chakudya kapena kudziteteza, ndipo imakonda kwambiri kubisala. Zambiri za kukhala wotetezeka

Kuti padziko lapansi?

Africa Asia Ulaya Amereka ya Kumpoto Amereka ya Kumwera Australia ndi Oceania Nyanja ya Pacific Nyanja ya Indian Nyanja Yofiira Nyanja ya Coral Nyanja ya South China Nyanja ya Philippine Nyanja ya Andaman Nyanja ya Arabia ndi Gulf ya Persia Nyanja ya Timor ndi Arafura Nyanja ya Bengal

Ndi yaikulu bwanji?

Ndi yaitali bwanji?

yaitali ngati zidutswa zomangira zoseweretsa 11 pamzereyochedwa kuposa nkhono ya m'munda

Crown-of-thorns starfish ndi yaikulu bwanji poyerekeza ndi IWE?

Ndi masamu chabe mu msakatuli wako. Palibe chomwe chimasungidwa kapena kutumizidwa kwina.

Imathamanga bwanji?

Hatchi ya m'nyanja (seahorse) pafupifupi 0,0015 km/h (0 mph)

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

Nkhono ya m'munda pafupifupi 0,05 km/h (0,03 mph)

zoyenera kudziwa

Mfundo

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

Kuthetsa nthano zabodza

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

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

Za akatswiri a ululu

Dzina la sayansi: Acanthaster planci
Gulu: Nungu za m'nyanja, nyenyezi za m'nyanja ndi nyongolotsi
Banja: Acanthasteridae2
Dongosolo: Valvatida
Makontinenti: Nyanja ya Indian, Nyanja ya Pacific, Nyanja Yofiira, Nyanja ya Coral, Nyanja ya Philippine, Nyanja ya South China, Nyanja ya Andaman, Nyanja ya Arabia ndi Gulf ya Persia, Nyanja ya Timor ndi Arafura, Nyanja ya Bengal, Nyanja zikuluzikulu
Ana akhanda: 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
Ngozi kwa anthu: 3 / 5: Yoopsa3

Kumene mfundo zimachokera

Crown-of-thorns starfish (Wikipedia (CC BY-SA 4.0))
Acanthaster planci (iNaturalist): mayina ndi magulu a sayansi.
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