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Savigny's long-spined urchin

Diadema savignyi

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

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.

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

Hidup di

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

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

Laman utama

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

Panjang

9 cm (3.5 in)1

Kelajuan maksimum

kira-kira 0.02 km/j (0.01 mph)

Berenang, anggaran kasar

Apa yang ia makan?

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

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

Cara mengenalinya

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

Sering dikelirukan dengan: 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

Kuasa bisa

Duri berbisa

Duri tajam membawa bisa. Memijak atau memegangnya menyakitkan.

Berapa bahaya ia kepada manusia?

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

Apa yang ia buat apabila takut?

When a shadow falls on it, it angles its spines towards the possible attacker.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 Arab & Teluk Parsi Laut Timor & Laut Arafura Teluk Benggala

Berapa besar ia?

Berapa panjang ia?

sepanjang 3 blok binaan mainan disusun sebarislebih perlahan daripada siput kebun

Berapa besar Savigny's 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)

Savigny's 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

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

Untuk pakar bisa

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

Dari mana fakta datang

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