Crown-of-thorns starfish
The crown-of-thorns starfish is a large starfish with long, sharp spines that look like a crown of thorns. It lives on coral reefs across the Indo-Pacific, from the Red Sea to the west coast of Central America, and it is most common around Australia. It feeds on hard coral, so it can change the reefs it lives on.1

Cara mengenalinya
- Adults are normally 25 to 35 cm across.1
- Up to 21 arms, with long, stiff, very sharp spines that are 4 to 5 cm long on the top and sides of the arms.1
- Colour varies with diet or region: purple, purple-blue, reddish grey or brown with red spine tips, or green with yellow spine tips.1
- The body is flexible and can bend and twist around coral surfaces.1
Sering tertukar dengan: A close relative, Acanthaster brevispinus, lives on soft sea floors at moderate depths rather than on coral reefs. The two are considered sibling species.1
Kekuatan bisa
Duri tajam membawa bisa. Menginjak atau memegangnya terasa sakit.
Apa efek bisanya?
The spines do not inject venom. When they pierce skin, tissue containing saponins (detergent-like chemicals) is left in the wound. In humans this causes a sharp, stinging pain that can last several hours, persistent bleeding, and nausea and swelling that may last a week or more.1
Seberapa berbahaya bagi manusia?
Bahaya bagi manusia: SeriusJika durinya menusukmu, pergilah ke dokter. Kematian sangat jarang.The spines can cause sharp pain, long-lasting bleeding, nausea and swelling. Brittle spines can break off and stay in the tissue.1
Jika durinya menusukmu
- Spines that become embedded in the tissue must be removed surgically.1
- Rendam luka dalam air panas, sepanas yang masih bisa ditahan tanpa melepuh, dan cari bantuan medis untuk mencabut duri. Jangan mengoreknya sendiri.
Selalu hubungi nomor darurat dulu (112, 000, 911). Ini panduan pertolongan pertama umum, bukan nasihat medis. Dasar-dasar pertolongan pertama
Tetap aman
- Jangan pernah menyentuh, menangkap, atau mengganggu hewan liar, walaupun kecil, dan walaupun tampak tidur atau mati.
- Beri ia ruang. Jika bertemu, tetap tenang, mundur perlahan, dan biarkan ia pergi.
- Jika durinya menusukmu: tetap tenang, jangan bergerak, hubungi nomor darurat (112, 000, 911) atau segera ke rumah sakit. Ingat seperti apa rupanya, foto sangat membantu.
Ia tidak mengincarmu. Ia memakai bisanya untuk menangkap makanan atau melindungi diri, dan ia jauh lebih suka bersembunyi. Lebih lanjut tentang tetap aman
Di mana di dunia?
Seberapa besar dia?
Seberapa panjang dia?
sepanjang 11 balok mainan yang dijajarkan
lebih lambat dari siput kebunSeberapa besar Crown-of-thorns starfish dibandingkan KAMU?
Hanya hitungan di browsermu. Tidak ada yang disimpan atau dikirim ke mana pun.
Seberapa cepat dia?
Fakta
An individual starfish can consume up to 6 square metres of living coral reef per year.1
When taken out of water, its soft body ruptures and collapses, but its spines can recover their shape if it is put back in the water while still alive.1
Its body contains detergent-like saponins, so keeping starfish in small volumes of water with aeration produces large amounts of foam.1
It is one of the largest starfish in the world.1
It has lost the usual five-fold symmetry of starfish as it grew more arms, although it begins life with five-fold symmetry.1
Pembongkar mitos
Mitos: Its spines inject venom like a snake or stinging animal.
Faktanya: It has no mechanism for injecting toxin. Its spines pierce skin and leave saponin-containing tissue in the wound.1
Untuk ahli bisa
- Nama ilmiah
- Acanthaster planci
- Kelompok
- Bulu babi, bintang laut, dan cacing
- Keluarga
- Acanthasteridae2
- Urutan
- Valvatida
- Benua
- Samudra Hindia, Samudra Pasifik, Laut Merah, Laut Koral, Laut Filipina, Laut Cina Selatan, Laut Andaman, Laut Arab dan Teluk Persia, Laut Timor dan Laut Arafura, Teluk Benggala, Samudra
- Anak
- It releases vast amounts of eggs and sperm (gametes) during mass spawning events in summer, and the eggs contain saponins similar to those in adults.1
- Bahaya bagi manusia
- 3 / 5: Serius3
Dari mana faktanya berasal
- Crown-of-thorns starfish (Wikipedia (CC BY-SA 4.0))
- Acanthaster planci (iNaturalist): nama dan klasifikasi.
- Venom Wiki: tingkat bahaya, ukuran umum, dan perkiraan kecepatan adalah buatan kami. Lihat cara kami menghitungnya: Cara kami menilai bahaya.
Setiap fakta di halaman ini punya nomor yang menunjuk ke sumbernya. Kalau kami salah, maaf ya, kami penggemar hewan, bukan jurnal ilmiah. Beri tahu kami di [email protected] dan kami akan memperbaikinya.
Duri berbisa