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Radiant sea urchin

Astropyga radiata

Davart il num: Astropyga comes from Greek words meaning star and anus, after the star-shaped pattern around its anus. Radiata is Latin for radiant, after its colours and spines.1

Fa mo malBetg tutgarQuai fa mal, ma i na ta fa nagin donn serius.

Ritschs, stailas e verms

Spinas tissientadasMangia: Plantas

Privel per umans: DolurusQuai po far propi mal, ma i n'è bunamain mai grav.

The radiant sea urchin is a large, colourful sea urchin with long, spiky spines. It lives in warm, shallow seas across the Indo-Pacific, from the African coast to Hawaii and Australia. Its spines are venomous, so it is one to admire from a distance.1

Viva en

Tropical Indo-Pacific, from the African coast to Hawaii and Australian waters1

Ocean Indic, Ocean Pacific, Mar da Coral, Mar da las Filippinas, Mar da Timor e d'Arafura, Golf dal Bengal

Pagina iniziala

It is often found in lagoons and bays where the seabed is sand, shingle or coral rubble. It usually lives at 10 to 30 metres deep, and can go down to about 70 metres. Sometimes many urchins gather together in one place.1

Lunghezza

20 cm (7,9 in)1

Sveltezza maximala

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

Nudar, stima approximativa

Tge mangia el?

It is mostly active at night and feeds by grazing on algae. It has five powerful teeth in a mouth at the centre of its underside, known as an Aristotle's lantern.1

Foto da Radiant sea urchin — Radiant sea urchin. Foto: Dan Schofield. CC BY 4.0, iNaturalist.

Co renconuscher el

A large urchin, with a body (test) up to 20 cm across.1
Long, hollow spines up to 4 cm, in five vertical clusters.1
Between the clusters are bare, V-shaped red areas with lines of iridescent blue dots.1
The rest of the body and spines range from reddish brown to purple, dark brown or nearly black.1
Juveniles have spines with banding across them, and this sometimes stays into adulthood.1

Savens confundì cun: It is often called the false fire urchin to tell it apart from the true fire urchin, Asthenosoma varium.1

Forza dal tissi

Spinas tissientadas

Spinas pizzadas portan il tissi. Sch'ins passa sin el u al piglia, fa quai mal.

Tge fa ses tissi?

Its spines are venomous and can cause painful wounds. The spines are long and hollow, and the shorter of the two kinds are the venomous ones.1

Quant privlus è el per umans?

Privel per umans: DolurusQuai po far propi mal, ma i n'è bunamain mai grav.

It is not deadly to humans, but its spines can cause painful wounds. Because it is large and brightly coloured, divers can usually see it, so injuries from stepping on one are fairly rare. On the 'Kings of Pain' pain index it scores 12 out of 30.1

Tge fa el, cura ch'el ha tema?

It is sensitive to light and can angle its spines towards an approaching threat.1

Sche sias spinas ta furan

Metta la plaja en aua chauda, uschè chauda sco che la persuna po supportar senza sa brischar, e tschertga agid medicinal per allontanar las spinas. N'emprova betg da las chavar ora sez.

Clama adina l'emprim tes numer d'urgenza (112, 000, 911). Quai è in cussegl general d'emprim agid, betg in cussegl medicinal. Basa da l'emprim agid

Resta en segirezza

Na tutga, na piglia e na tizza mai in animal selvadi, gnanc in pitschen, ed era sch'el para da durmir u d'esser mort.
Dà spazi a l'animal. Sche ti scuntras in, resta calm, va plaun enavos e lascha ir el per sia via.
Sche sias spinas ta furan: resta calm, na ta mova betg, clama tes numer d'urgenza (112, 000, 911) u va spert en in ospital. Ta regorda co ch'el veseva or, ina foto gida.

El n'ha betg quai sin tai. El dovra ses tissi per pigliar nutriment u per sa defender, e sa zuppa bler pli gugent. Dapli davart la segirezza

Nua sin il mund?

Africa Asia Europa America dal Nord America dal Sid Australia ed Oceania Ocean Pacific Ocean Indic Mar da Coral Mar da las Filippinas Mar da Timor e d'Arafura Golf dal Bengal

Quant grond è el?

Quant lung è el?

uschè lung sco 6 bluccs da construcziun in suenter l'auterpli plaun ch'ina lindorna da curtin

Quant grond è Radiant sea urchin cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn memorisà u tramess.

Quant svelt è el?

In chaval da mar circa 0,0015 km/h (0 mph)

Radiant sea urchin circa 0,02 km/h (0,01 mph)

Ina lindorna da curtin circa 0,05 km/h (0,03 mph)

bun da savair

Fatgs

A crab called Dorippe frascone carries the urchin on its back.1

Several shrimps, crabs and small fish live among its spines for shelter.1

Its scientific name refers to a star-shaped pattern around its anus, not to the animal's shape as a whole.1

Its bright colours and size make it a favourite subject for underwater photographers and some expert fish-keepers.1

Its young larvae drift in the ocean as plankton before they settle on the seabed.1

Per experts da tissi

Num scientific: Astropyga radiata
Gruppa: Ritschs, stailas e verms
Famiglia: Diadematidae2
Urden: Diadematoida
Continents: Ocean Indic, Ocean Pacific, Mar da Coral, Mar da las Filippinas, Mar da Timor e d'Arafura, Golf dal Bengal, Ils oceans
Poppins: Males and females are separate. Eggs and sperm are released into the water, and the larvae drift as plankton through several stages before settling on the seabed and becoming juveniles.1
Privel per umans: 2 / 5: Dolurus3

Da nua che vegnan ils fatgs

Astropyga radiata (Wikipedia (CC BY-SA 4.0))
Astropyga radiata (iNaturalist): nums e classificaziun.
Venom Wiki: il stgalim da privel, la grondezza tipica e la stima da la sveltezza èn noss agens. Guarda co che nus als calculain: Co che nus valitain il privel.

Mintga fatg sin questa pagina ha in numer che renvia a sia funtauna. Sche nus avain fatg in sbagl, perstgisa, nus essan fans d'animals, betg ina revista scientifica. Scriva a nus a [email protected] e nus curregin.

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