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Ikhathuni ka-Savigny's long-spined urchin
Inombolo 1271 kwezingu-1 402

Savigny's long-spined urchin

Diadema savignyi
Mayelana negama: The species name honours Marie Jules César Savigny, a French zoologist who described many new marine species from the Mediterranean and Red Sea.1
Kubuhlungu njeUngathintiKubuhlungu, kodwa ngeke kukulimaze kakhulu.
Izinkalankala zasolwandle ezinameva, izinkanyezi zasolwandle nezikelemu Ameva anobuthiSidla: Izitshalo
Ingozi ebantwini: KubuhlunguKungaba buhlungu ngempela, kodwa cishe akukaze kube kubi kakhulu.

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

Ihlala
East coast of Africa, Red Sea, Indian Ocean, western Pacific, French Polynesia, Hawaii, New Caledonia and northern Australia1
ULwandlekazi i-India, ULwandlekazi iPacific, Ulwandle Olubomvu, Ulwandle lwase-Arabia ne-Persian Gulf, Ulwandle lwaseTimor ne-Arafura, Ichweba laseBengal
Ekhaya
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
Ubude
9 cm (3.5 in)1
Ijubane eliphezulu
cishe 0.02 km/h (0.01 mph)
Ukubhukuda, isiqagela nje
Sidlani?
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
Ngempela!Isithombe sika-Savigny's long-spined urchin
Savigny's long-spined urchin. Isithombe: Anders Poulsen, Deep Blue (http://www.colours.dk/). CC BY-SA 3.0, Wikimedia Commons.

Indlela yokusibona

  • 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

Ivamise ukudidaniswa ne: 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

Amandla obuthi

Ameva anobuthi

Ameva abukhali aphethe ubuthi. Ukusinyathela noma ukusibamba kubuhlungu.

Siyingozi kangakanani ebantwini?

Ingozi ebantwini: KubuhlunguKungaba buhlungu ngempela, kodwa cishe akukaze kube kubi kakhulu.

Senzani uma sesabile?

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

Uma ameva aso ekugwaza

  • Faka inxeba emanzini ashisayo, ashisa ngendlela umuntu angakwazi ukuyibekezelela ngaphandle kokusha, bese uthola usizo lwezokwelapha ukuze kukhishwe ameva. Ungawamambi ngokwakho.

Njalo shayela kuqala inombolo yezimo eziphuthumayo (112, 000, 911). Lokhu kuyiseluleko sosizo lokuqala esijwayelekile, akusona iseluleko sezokwelapha. Izisekelo zosizo lokuqala

Hlala uphephile

  • Ungalokothi uthinte, ubambe noma ugcone isilwane sasendle, ngisho noma sincane, futhi ngisho noma sibukeka silele noma sifile.
  • Sinike isikhala. Uma uhlangana naso, hlala uzolile, uhlehle kancane bese usiyeka sihambe ngendlela yaso.
  • Uma ameva aso ekugwaza: hlala uzolile, ungashukumi, shayela inombolo yezimo eziphuthumayo (112, 000, 911) noma uye esibhedlela ngokushesha. Khumbula ukuthi besibukeka kanjani, isithombe siyasiza.

Asikuzingeli wena. Sisebenzisa ubuthi baso ukuze sibambe ukudla noma ukuzivikela, futhi singancamela ukucasha. Okwengeziwe mayelana nokuhlala uphephile

Kuphi emhlabeni?

I-AfrikaI-AsiaI-YurophuINyakatho MelikaINingizimu MelikaI-Australia ne-OceaniaULwandlekazi iPacificULwandlekazi i-IndiaUlwandle OlubomvuUlwandle lwase-Arabia ne-Persian GulfUlwandle lwaseTimor ne-ArafuraIchweba laseBengal

Sikhulu kangakanani?

Side kangakanani?

Savigny's long-spined urchin ubude obucishe bube ngu-9 cm (3.5 in)Isibophi sephepha cishe 3 cm (1.2 in)Iselula ehlakaniphile cishe 15 cm (5.9 in)
side njengezitini zamathoyizi ezingu-3 ezilandelanayosihamba kancane kunomnenke wasengadini

Savigny's long-spined urchin mkhulu kangakanani uma uqhathanisa NAWE?

Yizibalo nje kusiphequluli sakho. Akukho okulondolozwayo noma okuthunyelwa ndawo.

Sishesha kangakanani?

kuhle ukwazi

Amaqiniso

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

Okongoti bobuthi

Igama lesayensi
Diadema savignyi
Iqembu
Izinkalankala zasolwandle ezinameva, izinkanyezi zasolwandle nezikelemu
Umndeni
Diadematidae2
Ukuhleleka
Diadematoida
Amazwekazi
ULwandlekazi i-India, ULwandlekazi iPacific, Ulwandle Olubomvu, Ulwandle lwase-Arabia ne-Persian Gulf, Ulwandle lwaseTimor ne-Arafura, Ichweba laseBengal, Izilwandlekazi
Izinsana
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
Ingozi ebantwini
2 / 5: Kubuhlungu3

Lapho amaqiniso evela khona

  1. Diadema savignyi (Wikipedia (CC BY-SA 4.0))
  2. Diadema savignyi (iNaturalist): amagama nokuhlelwa ngezigaba.
  3. Venom Wiki: izinga lengozi, usayizi ojwayelekile nesiqagela sejubane kungokwethu. Bona ukuthi sikubala kanjani: Indlela esilinganisa ngayo ingozi.

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