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Savigny's long-spined urchin

Diadema savignyi

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

Samo boliNe dotikaj seBoli, a te ne bo resno poškodovala.

Ježki, zvezde in črvi

Strupene bodiceJe: Rastline

Nevarnost za ljudi: BolečeLahko zelo boli, a skoraj nikoli ni resno.

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

Živi v

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

Indijski ocean, Tihi ocean, Rdeče morje, Arabsko morje in Perzijski zaliv, Timorsko in Arafursko morje, Bengalski zaliv

Domov

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

Dolžina

9 cm (3,5 in)1

Največja hitrost

približno 0,02 km/h (0,01 mph)

Plavanje, groba ocena

Kaj je?

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

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

Kako jo prepoznaš

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

Pogosto zamenjujejo z: 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

Moč strupa

Strupene bodice

Ostre bodice nosijo strup. Če stopiš nanjo ali jo primeš, boli.

Kako nevarna je za ljudi?

Nevarnost za ljudi: BolečeLahko zelo boli, a skoraj nikoli ni resno.

Kaj naredi, ko se prestraši?

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

Če te zbode z bodicami

Rano daj v vročo vodo, tako vročo, kot jo poškodovanec prenese, ne da bi se opekel, in poišči zdravniško pomoč, da odstranijo bodice. Ne izkopavaj jih sam.

Vedno najprej pokliči številko za klic v sili (112, 000, 911). To so splošna navodila za prvo pomoč, ne zdravniški nasvet. Osnove prve pomoči

Ostani varen

Nikoli se ne dotikaj divje živali, je ne lovi in je ne draži, tudi če je majhna in tudi če je videti, kot da spi ali je mrtva.
Pusti ji prostor. Če jo srečaš, ostani miren, počasi stopi nazaj in jo pusti, da gre svojo pot.
Če te zbode z bodicami: ostani miren, ne premikaj se, pokliči številko za klic v sili (112, 000, 911) ali hitro pojdi v bolnišnico. Zapomni si, kako je izgledala, fotografija pomaga.

Ne preži nate. Strup uporablja, da ulovi hrano ali se zaščiti, in se veliko raje skrije. Več o varnosti

Kje na svetu?

Afrika Azija Evropa Severna Amerika Južna Amerika Avstralija in Oceanija Tihi ocean Indijski ocean Rdeče morje Arabsko morje in Perzijski zaliv Timorsko in Arafursko morje Bengalski zaliv

Kako velika je?

Kako dolga je?

dolga kot 3 kock za igranje v vrstipočasnejša od vrtnega polža

Kakšne velikosti je Savigny's long-spined urchin v primerjavi s TABO?

Samo matematika v tvojem brskalniku. Nič se ne shrani in nič se nikamor ne pošlje.

Kako hitra je?

Morski konjiček približno 0,0015 km/h (0 mph)

Savigny's long-spined urchin približno 0,02 km/h (0,01 mph)

Vrtni polž približno 0,05 km/h (0,03 mph)

vredno vedeti

Dejstva

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

Za strokovnjake za strupe

Znanstveno ime: Diadema savignyi
Skupina: Ježki, zvezde in črvi
Družina: Diadematidae2
Red: Diadematoida
Celine: Indijski ocean, Tihi ocean, Rdeče morje, Arabsko morje in Perzijski zaliv, Timorsko in Arafursko morje, Bengalski zaliv, Oceani
Mladiči: 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
Nevarnost za ljudi: 2 / 5: Boleče3

Od kod so dejstva

Diadema savignyi (Wikipedia (CC BY-SA 4.0))
Diadema savignyi (iNaturalist): imena in razvrstitev.
Venom Wiki: stopnja nevarnosti, tipična velikost in ocena hitrosti so naše lastne. Poglej, kako jih določimo: Kako ocenjujemo nevarnost.

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