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Black long-spined urchin

Diadema setosum

Sakit sahajaJangan sentuhIa sakit, tetapi tidak akan mencederakan kamu dengan serius.

Landak laut, tapak sulaiman & cacing

Duri berbisaMakan: Tumbuhan

Bahaya kepada manusia: MenyakitkanIa boleh jadi sangat sakit, tetapi hampir tidak pernah serius.

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

Hidup di

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

Lautan Hindi, Lautan Pasifik, Laut Merah, Laut Karang, Laut Filipina, Laut Arab & Teluk Parsi, Laut Timor & Laut Arafura, Teluk Benggala

Laman utama

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

Panjang

7 cm (2.8 in)1

Berat

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

Kelajuan maksimum

kira-kira 0.02 km/j (0.01 mph)

Berenang, anggaran kasar

Apa yang ia makan?

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

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

Cara mengenalinya

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

Sering dikelirukan dengan: 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

Kuasa bisa

Duri berbisa

Duri tajam membawa bisa. Memijak atau memegangnya menyakitkan.

Apa kesan bisanya?

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

Berapa bahaya ia kepada manusia?

Bahaya kepada manusia: MenyakitkanIa boleh jadi sangat sakit, tetapi hampir tidak pernah serius.

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

Apa yang ia buat apabila takut?

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

Jika durinya menikam kamu

Rendam luka dalam air panas, sepanas yang orang itu boleh tahan tanpa melecur, dan dapatkan bantuan perubatan untuk mengeluarkan duri. Jangan korek sendiri.

Sentiasa hubungi nombor kecemasan dahulu (112, 000, 911). Ini panduan pertolongan cemas umum, bukan nasihat perubatan. Asas pertolongan cemas

Kekal selamat

Jangan sesekali sentuh, tangkap atau usik haiwan liar, walaupun yang kecil, dan walaupun ia nampak tidur atau mati.
Beri ia ruang. Jika kamu terjumpa, bertenang, undur perlahan-lahan dan biarkan ia pergi.
Jika durinya menikam kamu: bertenang, jangan bergerak, hubungi nombor kecemasan (112, 000, 911) atau pergi ke hospital dengan segera. Ingat rupanya, gambar boleh membantu.

Ia bukan mahu memburu kamu. Ia guna bisanya untuk menangkap makanan atau melindungi diri, dan ia lebih suka bersembunyi. Lagi tentang keselamatan

Di mana di dunia?

Afrika Asia Eropah Amerika Utara Amerika Selatan Australia & Oceania Lautan Pasifik Lautan Hindi Laut Merah Laut Karang Laut Filipina Laut Arab & Teluk Parsi Laut Timor & Laut Arafura Teluk Benggala

Berapa besar ia?

Berapa panjang ia?

Berapa berat ia?

seberat 80 klip kertas

sepanjang 2 blok binaan mainan disusun sebarislebih perlahan daripada siput kebun

Berapa besar Black long-spined urchin berbanding KAMU?

Hanya matematik dalam pelayar kamu. Tiada apa yang disimpan atau dihantar ke mana-mana.

Berapa laju ia?

Kuda laut kira-kira 0.0015 km/j (0 mph)

Black long-spined urchin kira-kira 0.02 km/j (0.01 mph)

Siput taman kira-kira 0.05 km/j (0.03 mph)

berguna untuk diketahui

Fakta

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

Pemecah mitos

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

Hakikat: 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

Untuk pakar bisa

Nama saintifik: Diadema setosum
Kumpulan: Landak laut, tapak sulaiman & cacing
Keluarga: Diadematidae2
Susunan: Diadematoida
Benua-benua: Lautan Hindi, Lautan Pasifik, Laut Merah, Laut Karang, Laut Filipina, Laut Arab & Teluk Parsi, Laut Timor & Laut Arafura, Teluk Benggala, Lautan
Anak: 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
Bahaya kepada manusia: 2 / 5: Menyakitkan3

Dari mana fakta datang

Diadema setosum (Wikipedia (CC BY-SA 4.0))
Diadema setosum (iNaturalist): nama dan pengelasan.
Venom Wiki: tahap bahaya, saiz biasa dan anggaran kelajuan adalah penilaian kami sendiri. Lihat cara kami mengiranya: Cara kami menilai bahaya.

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