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Cartoon ng Savigny's long-spined urchin
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Savigny's long-spined urchin

Diadema savignyi
Tungkol sa pangalan: The species name honours Marie Jules César Savigny, a French zoologist who described many new marine species from the Mediterranean and Red Sea.1
Masakit langHuwag hawakanMasakit, pero hindi ka nito lubhang mapipinsala.
Sea urchin, sea star at bulate Makamandag na tinikKinakain: Mga halaman
Panganib sa tao: MasakitTalagang masakit, pero halos hindi kailanman malala.

Savigny's long-spined urchin is a spiny sea animal that lives on reefs and in shallow lagoons. It has very long, thin spines that can grow up to 25 cm, and it comes out at night to graze on algae. Its spines are the part that can hurt people, so it is worth giving it plenty of room.1

Nakatira sa
East coast of Africa, Red Sea, Indian Ocean, western Pacific, French Polynesia, Hawaii, New Caledonia and northern Australia1
Karagatang Indiyano, Karagatang Pasipiko, Dagat Pula, Dagat Arabo at Golpo ng Persia, Dagat Timor at Arafura, Look ng Bengal
Home
It is found on mixed sandy, rocky and coral seabed, especially in places disturbed by storms or other natural events. It lives from the surface down to about 70 metres deep. It often hides in crevices or under boulders during the day.1
Haba
9 cm (3.5 in)1
Pinakamataas na bilis
mga 0.02 km/h (0.01 mph)
Paglangoy, tantiya lang
Ano ang kinakain nito?
It feeds at dusk on the algal mat that grows over the seabed, tearing it up as it grazes. This helps keep algae from overwhelming corals.1
Totoo!Litrato ng Savigny's long-spined urchin
Savigny's long-spined urchin. Litrato: Anders Poulsen, Deep Blue (http://www.colours.dk/). CC BY-SA 3.0, Wikimedia Commons.

Paano ito makikilala

  • Usually black, with a rounded body (called a test) up to about 9 cm across1
  • Long, thin, hollow spines that grow in tufts and can reach 25 cm; they are usually black but can be grey, dark brown or purple1
  • Juveniles may have bands of lighter and darker shades, and the occasional individual is completely white1
  • Iridescent green or blue lines around the interambulacral areas and around the periproct (the cone-shaped region surrounding the anus)1

Madalas mapagkamalang: It is very similar to Diadema setosum, which shares much of its range and often lives in the same groups. Savigny's long-spined urchin lacks the thin orange ring around the periproct that Diadema setosum has.1

Lakas ng kamandag

Makamandag na tinik

May dalang kamandag ang matatalim na tinik. Masakit kapag naapakan o nahawakan ito.

Gaano ito kapanganib sa tao?

Panganib sa tao: MasakitTalagang masakit, pero halos hindi kailanman malala.

Ano ang ginagawa nito kapag natatakot?

When a shadow falls on it, it angles its spines towards the possible attacker.1

Kung matusok ka ng mga tinik nito

  • Ilubog ang sugat sa mainit na tubig, kasing-init ng kayang tiisin ng tao nang hindi napapaso, at kumuha ng tulong medikal para maalis ang mga tinik. Huwag mo itong hukayin nang mag-isa.

Laging tawagan muna ang numero pang-emergency (112, 000, 911). Ito ay pangkalahatang gabay sa pangunang lunas, hindi payong medikal. Mga batayan ng pangunang lunas

Mag-ingat

  • Huwag kailanman hawakan, hulihin o asarin ang ligaw na hayop, kahit maliit, at kahit mukha itong tulog o patay.
  • Bigyan ito ng espasyo. Kung makasalubong ka ng isa, manatiling kalmado, dahan-dahang umatras at hayaan itong umalis.
  • Kung matusok ka ng mga tinik nito: manatiling kalmado, huwag gumalaw, tawagan ang numero pang-emergency (112, 000, 911) o pumunta agad sa ospital. Tandaan ang itsura nito, makakatulong ang litrato.

Hindi ka nito hinahabol. Ginagamit nito ang kamandag para manghuli ng pagkain o ipagtanggol ang sarili, at mas gusto pa nitong magtago. Higit pa tungkol sa pag-iingat

Saan sa mundo?

AprikaAsyaEuropaHilagang AmerikaTimog AmerikaAustralia at OceaniaKaragatang PasipikoKaragatang IndiyanoDagat PulaDagat Arabo at Golpo ng PersiaDagat Timor at ArafuraLook ng Bengal

Gaano ito kalaki?

Gaano ito kahaba?

Savigny's long-spined urchin mga 9 cm ang haba (3.5 in)Isang paper clip mga 3 cm (1.2 in)Isang smartphone mga 15 cm (5.9 in)
kasinghaba ng 3 laruang building brick na magkakasunodmas mabagal kaysa sa suso sa hardin

Gaano kalaki si Savigny's long-spined urchin kumpara sa IYO?

Math lang sa browser mo. Walang sine-save o ipinapadala kahit saan.

Gaano ito kabilis?

magandang malaman

Mga fact

1

Its spines are brittle, thin and hollow, and grow in tufts that can be as long as 25 cm.1

2

Small fish such as cardinal fish, flatworms and shrimps sometimes shelter among its long spines.1

3

It spawns just after the full moon, while its close relative Diadema setosum mostly spawns around days eight to ten of the lunar cycle, which keeps the two species from interbreeding.1

4

Its grazing helps control algae, which might otherwise smother corals.1

5

It is nocturnal, hiding in crevices or under boulders by day, though several individuals sometimes huddle together in the open.1

6

Its predators include pufferfish, porcupinefish, lobsters and snails.1

Para sa mga eksperto sa kamandag

Pangalang siyentipiko
Diadema savignyi
Grupo
Sea urchin, sea star at bulate
Pamilya
Diadematidae2
Ayos
Diadematoida
Mga kontinente
Karagatang Indiyano, Karagatang Pasipiko, Dagat Pula, Dagat Arabo at Golpo ng Persia, Dagat Timor at Arafura, Look ng Bengal, Ang mga karagatan
Mga sanggol
It does not have live young. Instead it releases eggs and sperm into the water (spawning), mainly during the north-east monsoon period, peaking in May, and timed to the lunar cycle.1
Panganib sa tao
2 / 5: Masakit3

Saan galing ang mga fact

  1. Diadema savignyi (Wikipedia (CC BY-SA 4.0))
  2. Diadema savignyi (iNaturalist): mga pangalan at klasipikasyon.
  3. Venom Wiki: sarili naming tantiya ang antas ng panganib, karaniwang laki at hula sa bilis. Tingnan kung paano namin ito kinukuwenta: Paano namin sinusukat ang panganib.

Bawat fact sa pahinang ito ay may numerong tumuturo sa pinagmulan nito. Kung may mali kami, pasensya na, mahilig lang kami sa hayop, hindi kami science journal. Sabihin sa amin sa [email protected] at aayusin namin.

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Higit pa mula sa parehong grupo: Sea urchin, sea star at bulate

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Nakatira rin sa: Karagatang Indiyano

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