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Mangrove horseshoe crab

Carcinoscorpius rotundicauda

Gbasara aha ya: It is named after mangrove swamps, where it lives. The other name, round-tailed horseshoe crab, refers to its tail, which is rounded in cross section.1

Nwere ike igbu mmadụỌ nwere ike igbu mmadụ ma ọ bụrụ na enweghị ọgwụgwọ. Ọ bụrụ na mmadụ rie ya, chọọ enyemaka ngwa ngwa.

Anụmanụ ndị ọzọ nwere nsị n'ahụ

Nwere nsị ma e rie yaNri ya: AnụNwere nsị n'ahụ, ọ naghị agba nsị

Ihe ize ndụ nye mmadụ: Ọ dị egwu nke ukwuuỌ nwere ike igbu onye na-enwetaghị ọgwụgwọ.

The mangrove horseshoe crab is a sea creature with a hard shell and a long spiky tail. It lives in warm, shallow, muddy coastal waters in South and Southeast Asia. Its flesh contains a deadly poison, so it is important to know it apart from a safe relative.1

Nwere nsị n'ahụ ka ọ na-agba nsị? Anụmanụ na-agba nsị na-agbanye nsị site n'ịta ma ọ bụ ịgba. Anụmanụ nwere nsị n'ahụ na-emerụ ahụ ma e metụ ha aka ma ọ bụ rie ha. Nke a nwere nsị n'ahụ.

Ebe obibi

Tropical and brackish waters of India, Bangladesh and Southeast Asia. It may also occur in Sri Lanka, Myanmar and the Philippines.1

Oké Osimiri India, Oké Osimiri Pasifik, Osimiri Ndịda China, Osimiri Andaman, Ọwara Bengal

Ụlọ

It lives in shallow waters with soft, sandy bottoms or extensive mud flats, especially brackish, swampy areas such as mangroves. It spends most of its life close to or on the bottom. People meet it when fishermen collect it for food in Southeast Asia.1

Ogologo

28 cm ruo 40 cm (11 in ruo 1.3 ft)1

Ọsọ kacha elu

ihe dị ka 0.5 km/h (0.31 mph)

Igwu mmiri, nchepụta

Gịnị ka ọ na-eri?

It is a selective feeder on the bottom, eating mainly insect larvae, small fish, small crabs and thin-shelled bivalves. It has no jaws, so it grinds food with bristles on its legs and passes it to its mouth with its small front pincers.1

Foto Mangrove horseshoe crab — Mangrove horseshoe crab. Foto: Amada44. CC BY 3.0, Wikimedia Commons.

Otú ị ga-esi mata ya

It is the smallest of the four living horseshoe crab species.1
Its tail has a rounded cross section. In the other species the tail is essentially triangular.1
Females are larger than males. Females are typically about 30.5 to 31.5 cm long including the tail.1
Adults have a large dome-shaped front shell, a smaller rear shell with spines on its edge, and a spike-like tail.1

A na-agwakọkarị ya na: It is often confused with Tachypleus gigas, which is harmless to eat. The mangrove horseshoe crab has a rounded tail, while T. gigas has a triangular one. Tachypleus tridentatus can live in the same habitat.1

Ike nsị

Nwere nsị ma e rie ya

Ọ na-emerụ ahụ naanị ma ihe riri ya.

Gịnị ka nsị dị n'ahụ ya na-eme?

Its flesh contains tetrodotoxin (TTX), a poison that is lethal. This is a poison in the food, not a venom from a bite or sting.1

Kedu otú o si dị egwu nye mmadụ?

Ihe ize ndụ nye mmadụ: Ọ dị egwu nke ukwuuỌ nwere ike igbu onye na-enwetaghị ọgwụgwọ.

Several cases of food poisoning have happened after people ate this crab, and some of these cases were fatal. These cases usually occur when the crab is mistaken for the harmless T. gigas.1

Ọ bụrụ na mmadụ metụrụ ya aka ma ọ bụ rie ya

Ọ bụrụ na mmadụ riri ya ma ọ bụ nwee mgbaàmà mgbe o risịrị ya: kpọọ nọmba mberede gị ma ọ bụ ụlọ ọrụ ndụmọdụ nsị (poison centre) ozugbo.

Na-ebu ụzọ kpọọ nọmba mberede gị mgbe niile (112, 000, 911). Nke a bụ ndụmọdụ enyemaka mbụ n'ozuzu, ọ bụghị ndụmọdụ ọgwụ. Isi ihe enyemaka mbụ

Nọrọ na nchekwa

Emetụla anụ ọhịa aka, ejidela ya, emekwala ya ihe ọjọọ, ọbụna obere, ọbụna ma ọ dị ka ọ na-ehi ụra ma ọ bụ nwụọ anwụ.
Nye ya ohere. Ọ bụrụ na ị zutere otu, dị jụụ, laghachi azụ nwayọ, hapụ ya ka ọ gaa ụzọ ya.
Ọ bụrụ na i metụrụ ya aka ma ọ bụ rie ya: ehichala anya gị ma ọ bụ ọnụ gị, saa aka gị, chọọkwa enyemaka ọgwụ.

Ọ naghị achụ gị. Nsị ya dị naanị ka ihe ọ bụla ghara iri ya. Ihe ndị ọzọ gbasara ịnọ na nchekwa

Ebee n'ụwa?

Afrịka Eshia Yurop Ugwu Amerika Ndịda Amerika Ọstrelia na Oshenia Oké Osimiri Pasifik Oké Osimiri India Osimiri Ndịda China Osimiri Andaman Ọwara Bengal

Ọ hà aṅaa?

Kedu otú o si dị ogologo?

dị ogologo dị ka unere 2 a tọgbọrọ n'ahịrịdị ogologo dị ka blọk egwuregwu 12 n'ahịrị

Kedu otú Mangrove horseshoe crab si hà ma e jiri ya tụnyere GỊ?

Naanị mgbakọ na mwepụ n'ime browser gị. Ọ dịghị ihe echekwara ma ọ bụ ezigara ebe ọ bụla.

Kedu otú o si agba ọsọ?

Ejula ubi ihe dị ka 0.05 km/h (0.03 mph)

Mangrove horseshoe crab ihe dị ka 0.5 km/h (0.31 mph)

Mmadụ na-egwu mmiri ihe dị ka 3 km/h (1.9 mph)

ọ dị mma ịmara

Eziokwu

Its flesh contains a lethal poison, but its roe is a prized delicacy in Thailand, where it is served in a salad called yam khai maeng da.1

Horseshoe crabs have remained almost unchanged in shape and size for millions of years, and their fossils over 400 million years old look almost identical to living ones.1

Juveniles grow about 33% bigger each time they moult, taking about five moults to grow from 2 cm to adult size.1

Males cling to the backs of females for long periods before the eggs are laid, and it is thought that this species is monogamous.1

Horseshoe crabs have two compound eyes, which are mainly used to find a mate.1

Onye na-ekpughe akụkọ ụgha

Akụkọ ụgha: All horseshoe crabs are safe to eat.

Eziokwu: The mangrove horseshoe crab is not safe. Its flesh contains lethal tetrodotoxin, unlike T. gigas, which is harmless to eat.1

Maka ndị ọkachamara nsị

Aha sayensị: Carcinoscorpius rotundicauda
Otu: Anụmanụ ndị ọzọ nwere nsị n'ahụ
Ezinụlọ: Limulidae2
Usoro: Xiphosurida
Kọntinent dị iche iche: Oké Osimiri India, Oké Osimiri Pasifik, Osimiri Ndịda China, Osimiri Andaman, Ọwara Bengal, Oké osimiri niile
Ụmụ ọhụrụ: Females lay about 3500 eggs in a hole dug in the sand or mud, and the male fertilises them. The large eggs hatch after a couple of weeks into miniature versions of the adults.1
Ihe ize ndụ nye mmadụ: 4 / 5: Ọ dị egwu nke ukwuu3

Ebe eziokwu ndị a si

Mangrove horseshoe crab (Wikipedia (CC BY-SA 4.0))
Carcinoscorpius rotundicauda (iNaturalist): aha na nhazi ọkwa.
Venom Wiki: ọkwa ihe ize ndụ, nha nkịtị na nchepụta ọsọ bụ nke anyị. Lee otú anyị si achọpụta ha: Otú anyị si atụ ihe ize ndụ.

Eziokwu ọ bụla dị na peeji a nwere nọmba na-egosi ebe o si. Ọ bụrụ na anyị mehiere ihe, ndo, anyị bụ ndị hụrụ anụmanụ n'anya, ọ bụghị akwụkwọ akụkọ sayensị. Gwa anyị na [email protected], anyị ga-edozi ya.

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