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Nataal bu ñu rëdd ci Blue-black urchin
No 1273 ci 1 402

Blue-black urchin

Echinothrix diadema
Dafay metti rekkBul laalDafay metti, waaye du la lor bu bon.
Oursin, biddiwu géej ak ver Dag yu am daŋarDafay lekk: Gàncax
Musiba ci nit: Dafay mettiMën na metti lool, waaye lu bon du faral di am.

The blue-black urchin is a spiny sea animal that lives on tropical coral reefs. It is black or blue-black, with long spines that show a blue shine in the light. It grazes on algae during the night and hides in cracks and under rocks by day.1

Dafay dund ci
Throughout the Indo-Pacific coral reefs, from the Red Sea to Hawaii1
Mbàmbulaanu End, Mbàmbulaanu Pasifik, Géej gu Xonq, Géeju Koraay, Géeju Filipin, Géeju Timor ak Arafura, Golfu Bengal
Kër
It lives in shallow water, from the surface down to about 10 m, and can be found as deep as 70 m. By day it hides in crevices, burrows and under rocks.1
Guddaay
10 cm ba 20 cm (3,9 in ba 7,9 in)1
Gaawaay bu gën a kawe
lu tollu ci 0,02 km/h (0,01 mph)
Féey, xalaat
Lan lay lekk?
It grazes on algae and seagrass, and in Fiji its grazing choices matched its favourite algae, Codium geppiorum. Its grazing adds to the wearing down of coral reef structures by echinoids (sea urchins).1
Dëgg-dëgg!Fotoy Blue-black urchin
Blue-black urchin. Foto: Cricket Raspet. CC BY 4.0, iNaturalist.

Ni ngay ko xàmmee

  • It is black or blue-black and always dark in colour.1
  • Its spines show a blue sheen in the light.1
  • Its spines are long and closed at the tip.1
  • Its anal sac is small and dark, and it is hardly visible.1
  • Its typical diameter, including the spines, is 10 to 20 cm.1

Ñu ngi koy faral di jaxasoo ak: Echinothrix calamaris has banded spines, except in juveniles, and dark forms show a greenish tinge rather than blue. Diadema setosum has longer spines, a smaller test (the body shell) and an orange ring around its anal sac.1

Kàttanu daŋar

Dag yu am daŋar

Ay dag yu ñaw ñoo yor daŋar bi. Teg tànk ci kawam walla jàpp ko dafay metti.

Ni mu lore nit ñi?

Musiba ci nit: Dafay mettiMën na metti lool, waaye lu bon du faral di am.

Su ay dagam jamee la

  • Teg gaañu-gaañu bi ci ndox mu tàng, lu nit ki mën a muñ waaye bu dul ko lakk, te wutal ndimbal doktoor ngir dindi dag yi. Bul gas ngir wut leen sa bopp.

Saa su nekk, woo jëkk sa nimerob urgence (112, 000, 911). Lii ay ndigal yu yaatu ci ndimbal yu jëkk la, du ndigalu doktoor. Li war a xam ci ndimbal yu jëkk

Sàmmal sa bopp

  • Bul laal mukk, bul jàpp, bul sonal ab rab bu àll, doonte bu ndaw la, te doonte dafa mel ni dafa nelaw walla dafa dee.
  • May ko bérab. Su nga ko gisee, dalal, dellu ginnaaw ndànk-ndànk te bàyyi ko mu dem yoonam.
  • Su ay dagam jamee la: dalal, bul yëngu, woo sa nimerob urgence (112, 000, 911) walla dem lopitaan ci gaaw. Bul fàtte ni mu meloon, ab nataal dina dimbali.

Du la wut. Dafay jëfandikoo daŋaram ngir jàpp lu muy lekk walla ngir aar boppam, te nëbbu moo ko gën a neex. Yeneen ci ni ngay sàmme sa bopp

Fan ci àddina?

AfrigAsiTugalAmerig gu Bëj-gànnaarAmerig gu Bëj-saalumOstarali ak OseyaniMbàmbulaanu PasifikMbàmbulaanu EndGéej gu XonqGéeju KoraayGéeju FilipinGéeju Timor ak ArafuraGolfu Bengal

Ni mu réye?

Ni mu guddoo?

Blue-black urchin guddaayam lu tollu ci 20 cm (7,9 in)Ab banaana lu tollu ci 18 cm (7,1 in)Ab muusu kër lu tollu ci 50 cm (1,6 ft)
guddu na ni 6 bloku tabax yu ñu toftalegën a yéex escargot bu tóokër

Blue-black urchin ni mu réye ci wetu YOW?

Ay waññ rekk ci sa navigateur. Dara du denc te dara du yónnee fenn.

Ni mu gaawe?

baax na xam

Xibaar

1

The shrimp Stegopontonia commensalis lives on it, and the shrimp Saron marmoratus stays close to it for protection.1

2

Fish of the families Apogonidae (cardinalfish) and Centriscidae (razorfish and relatives) also stay close to it for protection.1

3

Its grazing contributes to bioerosion, the slow wearing down of reef structures.1

4

It is active at night and hides in crevices, burrows and under rocks during the day.1

Ngir boroom xam-xam ci daŋar

Turu xam-xam
Echinothrix diadema
Mbooloo
Oursin, biddiwu géej ak ver
Njaboot
Diadematidae2
Toftal
Diadematoida
Kontinaa yi
Mbàmbulaanu End, Mbàmbulaanu Pasifik, Géej gu Xonq, Géeju Koraay, Géeju Filipin, Géeju Timor ak Arafura, Golfu Bengal, Mbàmbulaan yi
Liir yi
Females generally choose low-lying spots, which give their tiny larvae better protection from predators.1
Musiba ci nit
2 / 5: Dafay metti3

Fa xibaar yi jóge

  1. Echinothrix diadema (Wikipedia (CC BY-SA 4.0))
  2. Echinothrix diadema (iNaturalist): tur ak ni ñu leen séddale.
  3. Venom Wiki: tolluwaayu musiba bi, réyaay bu yem bi ak xalaatu gaawaay bi, nun ñoo leen defar. Seetal ni nu leen waññe: Ni nuy natte musiba.

Xibaar bu nekk ci xët wii am na ab nimero buy won fa mu jóge. Su nu juumee, baal nu, nun ay nit ñu bëgg rab lanu, du ab jurnaalu xam-xam. Wax nu ko ci [email protected] te dinanu ko jubbanti.

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