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Setshwantsho sa khathune sa Savigny's long-spined urchin
Nom. 1271 ya 1 402

Savigny's long-spined urchin

Diadema savignyi
Ka ga leina: The species name honours Marie Jules César Savigny, a French zoologist who described many new marine species from the Mediterranean and Red Sea.1
E utlwisa botlhoko felaO se ka wa amaE a utlwisa botlhoko, mme ga e kitla e go gobatsa thata.
Di-urchin, dinaledi tsa lewatle le diboko Mitlwa ya botlholeE ja: Dimela
Kotsi go batho: E botlhokoE ka utlwisa botlhoko tota, mme go seoka thata gore e nne masisi.

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

E tshela kwa
East coast of Africa, Red Sea, Indian Ocean, western Pacific, French Polynesia, Hawaii, New Caledonia and northern Australia1
Lewatle la India, Lewatle la Pacific, Lewatle le Lehibidu, Lewatle la Arabia le Gulf ya Peresia, Lewatle la Timor le la Arafura, Kou ya Bengal
Gae
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
Boleele
9 cm (3,5 in)1
Lebelo le le kwa godimo
e ka nna 0,02 km/h (0,01 mph)
Go thuma, kakanyo fela
E ja eng?
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
Ka nnete!Setshwantsho sa Savigny's long-spined urchin
Savigny's long-spined urchin. Setshwantsho: Anders Poulsen, Deep Blue (http://www.colours.dk/). CC BY-SA 3.0, Wikimedia Commons.

Tsela ya go e lemoga

  • 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

Gantsi e tlhakanngwa le: 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

Maatla a botlhole

Mitlwa ya botlhole

Mitlwa e e bogale e rwala botlhole. Go e gata kgotsa go e tshwara go a utlwisa botlhoko.

E kotsi go le kae go batho?

Kotsi go batho: E botlhokoE ka utlwisa botlhoko tota, mme go seoka thata gore e nne masisi.

E dira eng fa e tshogile?

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

Fa mitlwa ya yone e go tlhaba

  • Tsenya ntho mo metsing a a mogote, a a bollo jo motho a ka bo itshokang a sa fiswe, mme o batle thuso ya bongaka go ntsha mitlwa. O se ka wa e epa ka bowena.

Ka gale leletsa nomoro ya gago ya tshoganyetso pele (112, 000, 911). Se ke kaelo e e akaretsang ya thuso ya ntlha, ga se kgakololo ya bongaka. Motheo wa thuso ya ntlha

Nna o babalesegile

  • O se ka wa ama, wa tshwara kgotsa wa tshwenya phologolo ya naga, le fa e le e nnye, le fa e lebega e robetse kgotsa e sule.
  • E fe sebaka. Fa o kopana le yone, ritibala, boela morago ka bonya mme o e tlogele e tsamaye ka tsela ya yone.
  • Fa mitlwa ya yone e go tlhaba: ritibala, o se ka wa tshikinyega, leletsa nomoro ya gago ya tshoganyetso (112, 000, 911) kgotsa o ye bookelong ka bonako. Gopola gore e ne e lebega jang, setshwantsho se a thusa.

Ga e go batle. E dirisa botlhole jwa yone go tshwara dijo kgotsa go itshireletsa, mme e rata go iphitlha go feta. Go le gontsi ka go nna o babalesegile

Kae mo lefatsheng?

AforikaAsiaYuropaAmerika BokoneAmerika BorwaAustralia le OceaniaLewatle la PacificLewatle la IndiaLewatle le LehibiduLewatle la Arabia le Gulf ya PeresiaLewatle la Timor le la ArafuraKou ya Bengal

E kgolo go le kae?

E telele go le kae?

Savigny's long-spined urchin e ka nna 9 cm ka boleele (3,5 in)Kelipi ya pampiri e ka nna 3 cm (1,2 in)Founu e e botlhale e ka nna 15 cm (5,9 in)
boleele jo bo lekanang le diboloko tsa go aga tsa ditshamekisi di le 3 mo molengbonya go feta kgopa ya tshingwana

Savigny's long-spined urchin e kgolo go le kae fa e bapisiwa le WENA?

Ke dipalo fela mo sefetleng sa gago (browser). Ga go sepe se se bolokwang kgotsa se se romelwang gope.

E bonako go le kae?

go botlhokwa go itse

Dintlha

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

Ya baitseanape ba botlhole

Leina la saense
Diadema savignyi
Setlhopha
Di-urchin, dinaledi tsa lewatle le diboko
Lelapa
Diadematidae2
Lekoko
Diadematoida
Dikontinente
Lewatle la India, Lewatle la Pacific, Lewatle le Lehibidu, Lewatle la Arabia le Gulf ya Peresia, Lewatle la Timor le la Arafura, Kou ya Bengal, Mawatle
Masea
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
Kotsi go batho
2 / 5: E botlhoko3

Kwa dintlha di tswang teng

  1. Diadema savignyi (Wikipedia (CC BY-SA 4.0))
  2. Diadema savignyi (iNaturalist): maina le thulaganyo ya mefuta.
  3. Venom Wiki: seelo sa kotsi, bogolo jo bo tlwaelegileng le kakanyo ya lebelo ke tsa rona. Bona kafa re di balang ka teng: Kafa re lekanyang kotsi ka teng.

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E tshela gape kwa: Lewatle la India

Australian box jellyfishDijelifishi le dibopiwa tsa lewatle tse di tlhabangE a bolayaO se ka wa amaGeography coneDikgopa tsa khouno le diokotopaseE a bolayaGreater blue-ringed octopusDikgopa tsa khouno le diokotopaseE a bolayaSouthern blue-ringed octopusDikgopa tsa khouno le diokotopaseE a bolayaHawksbill sea turtleDiphologolo tse dingwe tse di botlhole go di ama kgotsa go di jaE ka bolayaIrukandji jellyfishDijelifishi le dibopiwa tsa lewatle tse di tlhabangE ka bolayaO se ka wa ama
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