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Black long-spined urchin

Diadema setosum

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.

The black long-spined urchin is a sea urchin with very long, hollow spines. It lives on coral reefs, sand flats and seagrass beds across the Indo-Pacific, and it is one of the most widespread sea urchins in that region. Its spines can deliver a mild venom, so it is best to watch where you put your feet.1

Anaishi

Indo-Pacific region, from the Red Sea and east Africa to Australia and Japan; also found in the Mediterranean off Turkey after introduction1

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

Nyumbani

Commonly found on coral reefs, but also on sand flats and in seagrass beds. In Hong Kong it is found on rocky reefs, where it can be very numerous. People most often meet it by stepping on it in shallow water.1

Urefu

7 cm (2.8 in)1

Uzito

35 g hadi 80 g (1.2 oz hadi 2.8 oz)1

Kasi ya juu

takriban km 0.02 kwa saa (maili 0.01 kwa saa)

Kuogelea, makadirio

Hula nini?

It is a prolific grazer that feeds on many kinds of algae common on tropical coral reefs.1

Picha ya Black long-spined urchin — Black long-spined urchin. Picha: Quartl. CC BY-SA 4.0, iNaturalist.

Jinsi ya kumtambua

Black, near-spherical body (test) with extremely long, narrow, hollow spines, often black but sometimes brown-banded1
Five white spots on the body, which separate it from other Diadema species1
A bright orange ring around the periproctal cone (the 'anal cone'), which is often mistaken for an eye1
Bluish spots on the genital plates and a line of blue spots along the body1
Adults are no more than 70 mm across the body and about 40 mm high1

Mara nyingi huchanganywa na: Other Diadema species are similar in shape and spines, but they lack the five white spots that mark this species. Its orange ring and blue spots also help to tell it apart.1

Nguvu ya sumu

Miiba yenye sumu

Miiba mikali hubeba sumu. Kumkanyaga au kumshika kunauma.

Sumu yake hufanya nini?

The spines are hollow and contain a mild venom. The toxin mostly causes swelling and pain, which spreads gradually over several hours. The venom is not fatal to humans. The spines themselves are a bigger problem, because they are brittle and needle-like, break off in flesh and are difficult to remove.1

Ana hatari gani kwa watu?

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

The venom is only mild, and the species is not considered a serious threat to humans. Stepping on it can cause painful stings.1

Hufanya nini akiogopa?

When threatened by a sudden impact or by spines snapping, it rapidly flips its body over and 'runs' on the tips of its longest spines.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 Matumbawe Bahari ya Ufilipino Bahari ya Arabia na Ghuba ya Uajemi Bahari ya Timor na Arafura Ghuba ya Bengal

Ana ukubwa gani?

Ana urefu gani?

Ana uzito gani?

uzito sawa na vibanio vya karatasi 80

urefu sawa na matofali 2 ya kuchezea yaliyopangwa mstaripolepole kuliko konokono wa bustanini

Black 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)

Black 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

It can move 760 mm in just 7 seconds by rolling and walking on the tips of its spines.1

It has no eye, but it has a diffuse light-sensing system that lets it detect light levels and the size and colour of objects.1

In 2006, living specimens were found off Turkey, making it the first invasive Erythrean sea urchin recorded in the Mediterranean.1

Goose barnacles of the genus Microlepas are known to live on it as parasites.1

It is considered one of the oldest living species in its genus, Diadema.1

Kuvunja dhana potofu

Dhana potofu: Black long-spined urchins are deadly and their stings can kill people.

Ukweli: Their venom is mild and is not fatal to humans. The main problems are pain, swelling and spines that break off in the skin.1

Kwa wataalamu wa sumu

Jina la kisayansi: Diadema setosum
Kundi: Koche, nyota wa bahari na minyoo
Familia: Diadematidae2
Mpangilio: Diadematoida
Mabara: Bahari ya Hindi, Bahari ya Pasifiki, Bahari ya Shamu, Bahari ya Matumbawe, Bahari ya Ufilipino, Bahari ya Arabia na Ghuba ya Uajemi, Bahari ya Timor na Arafura, Ghuba ya Bengal, Bahari kuu
Watoto: It is a broadcast spawner, releasing eggs and sperm into the water. Spawning happens seasonally or year-round depending on the location, and in some places it follows the full moon.1
Hatari kwa watu: 2 / 5: Inauma3

Ukweli unatoka wapi

Diadema setosum (Wikipedia (CC BY-SA 4.0))
Diadema setosum (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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