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Savigny's long-spined urchin

Diadema savignyi

Kuhusu jina: The species name honours Marie Jules César Savigny, a French zoologist who described many new marine species from the Mediterranean and Red Sea.1

Inauma tuUsiguseInauma, lakini haitakudhuru vibaya.

Koche, nyota wa bahari na minyoo

Miiba yenye sumuHula: Mimea

Hatari kwa watu: InaumaInaweza kuuma sana, lakini karibu kamwe si jambo zito.

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

Anaishi

East coast of Africa, Red Sea, Indian Ocean, western Pacific, French Polynesia, Hawaii, New Caledonia and northern Australia1

Bahari ya Hindi, Bahari ya Pasifiki, Bahari ya Shamu, Bahari ya Arabia na Ghuba ya Uajemi, Bahari ya Timor na Arafura, Ghuba ya Bengal

Nyumbani

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

Urefu

9 cm (3.5 in)1

Kasi ya juu

takriban km 0.02 kwa saa (maili 0.01 kwa saa)

Kuogelea, makadirio

Hula nini?

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

Picha ya Savigny's long-spined urchin — Savigny's long-spined urchin. Picha: Anders Poulsen, Deep Blue (http://www.colours.dk/). CC BY-SA 3.0, Wikimedia Commons.

Jinsi ya kumtambua

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

Mara nyingi huchanganywa na: 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

Nguvu ya sumu

Miiba yenye sumu

Miiba mikali hubeba sumu. Kumkanyaga au kumshika kunauma.

Ana hatari gani kwa watu?

Hatari kwa watu: InaumaInaweza kuuma sana, lakini karibu kamwe si jambo zito.

Hufanya nini akiogopa?

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

Miiba yake ikikuchoma

Weka jeraha kwenye maji ya moto, moto kiasi ambacho mtu anaweza kuvumilia bila kuungua, na utafute msaada wa kitabibu kuondoa miiba. Usiichokonoe mwenyewe.

Daima piga namba ya dharura kwanza (112, 000, 911). Huu ni mwongozo wa jumla wa huduma ya kwanza, si ushauri wa kitabibu. Misingi ya huduma ya kwanza

Kaa salama

Kamwe usimguse, kumkamata wala kumchokoza mnyama wa porini, hata akiwa mdogo, na hata akionekana amelala au amekufa.
Mpe nafasi. Ukikutana naye, tulia, rudi nyuma polepole na umwache aende zake.
Miiba yake ikikuchoma: tulia, usitikisike, piga namba yako ya dharura (112, 000, 911) au nenda hospitali haraka. Kumbuka alivyoonekana, picha husaidia.

Hakuwindi wewe. Hutumia sumu yake kukamata chakula au kujilinda, na hupendelea zaidi kujificha. Zaidi kuhusu kukaa salama

Wapi duniani?

Afrika Asia Ulaya Amerika Kaskazini Amerika Kusini Australia na Oceania Bahari ya Pasifiki Bahari ya Hindi Bahari ya Shamu Bahari ya Arabia na Ghuba ya Uajemi Bahari ya Timor na Arafura Ghuba ya Bengal

Ana ukubwa gani?

Ana urefu gani?

urefu sawa na matofali 3 ya kuchezea yaliyopangwa mstaripolepole kuliko konokono wa bustanini

Savigny's long-spined urchin ana ukubwa gani ukilinganisha na WEWE?

Ni hesabu tu kwenye kivinjari chako. Hakuna kinachohifadhiwa wala kutumwa popote.

Ana kasi gani?

Farasi wa bahari takriban km 0.0015 kwa saa (0 mph)

Savigny's long-spined urchin takriban km 0.02 kwa saa (0.01 mph)

Konokono wa bustanini takriban km 0.05 kwa saa (0.03 mph)

inafaa kujua

Ukweli

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

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

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

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

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

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

Kwa wataalamu wa sumu

Jina la kisayansi: Diadema savignyi
Kundi: Koche, nyota wa bahari na minyoo
Familia: Diadematidae2
Mpangilio: Diadematoida
Mabara: Bahari ya Hindi, Bahari ya Pasifiki, Bahari ya Shamu, Bahari ya Arabia na Ghuba ya Uajemi, Bahari ya Timor na Arafura, Ghuba ya Bengal, Bahari kuu
Watoto: 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
Hatari kwa watu: 2 / 5: Inauma3

Ukweli unatoka wapi

Diadema savignyi (Wikipedia (CC BY-SA 4.0))
Diadema savignyi (iNaturalist): majina na uainishaji.
Venom Wiki: kiwango cha hatari, ukubwa wa kawaida na makadirio ya kasi ni yetu wenyewe. Ona jinsi tunavyovipata: Jinsi tunavyopima hatari.

Kila ukweli kwenye ukurasa huu una namba inayoonyesha chanzo chake. Kama tumekosea kitu, samahani, sisi ni wapenzi wa wanyama, si jarida la kisayansi. Tuambie kupitia [email protected] nasi tutarekebisha.

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