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Eserese katuun nke By-the-wind sailor
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By-the-wind sailor

Velella velella
Gbasara aha ya: Its common name refers to its small sail, which catches the wind and carries the animal across the sea.1
Adịghị njọỌ dịghị njọ nye mmadụ. Ọ dịghị ihe ị ga-echegbu onwe gị.
Jelifish na anụ osimiri na-agba agba Tentacles na-agba agbaNri ya: Anụ
Ihe ize ndụ nye mmadụ: ObereDị ka ịgba aṅụ ma ọ bụ nke na-erughị ya. Ọ fọrọ nke nta ka ọ ghara ịdị njọ nye mmadụ.

The by-the-wind sailor is a small, deep blue animal that floats on the surface of the open ocean. It is not a single creature but a colony of tiny linked animals, and it moves by catching the wind with a small stiff sail. Its stinging tentacles are generally harmless to people, but they can irritate the skin.1

Ebe obibi
Warm and temperate waters of all the world's oceans1
Oké Osimiri Pasifik, Oké Osimiri Atlantik, Oké Osimiri India, Osimiri Mediterenian, Oké Osimiri Ndịda, Antaktika
Ụlọ
It lives at the surface of the open ocean, floating with its sail above the water and its polyps hanging about 1 cm below. Under certain winds, thousands can be washed up on beaches, such as along the West Coast of North America, the west coast of Ireland and Hayle in Cornwall, England.1
Ogologo
7 cm (2.8 in)1
Ọsọ kacha elu
ihe dị ka 1 km/h (0.62 mph)
Igwu mmiri, nchepụta
Gịnị ka ọ na-eri?
It eats mostly plankton. It catches prey with tentacles that hang down in the water and bear stinging cells called nematocysts.1
N'ezie!Foto By-the-wind sailor
By-the-wind sailor. Foto: Niki Hubbard. CC BY 4.0, iNaturalist.

Otú ị ga-esi mata ya

  • Usually deep blue in colour1
  • A small, stiff sail projects above the water1
  • Most are less than about 7 cm long1
  • Tentacles hang down into the water below the float1

Ike nsị

Tentacles na-agba agba

Ọtụtụ puku obere sel na-agba agba na-agbapụ mgbe ihe metụrụ ha aka.

Gịnị ka nsị ọ na-agba na-eme?

Its nematocysts contain toxins that are effective against its prey, which are mostly plankton. The nematocysts are relatively benign to humans, but each person may respond differently to the toxin. Contact may cause irritation to exposed skin.1

Kedu otú o si dị egwu nye mmadụ?

Ihe ize ndụ nye mmadụ: ObereDị ka ịgba aṅụ ma ọ bụ nke na-erughị ya. Ọ fọrọ nke nta ka ọ ghara ịdị njọ nye mmadụ.

It is relatively harmless to humans. Its main effect is possible skin irritation after contact. Mass strandings can leave large numbers of dying and rotting animals on beaches.1

Ọ bụrụ na ọ gbaa

  • Pụta na mmiri, wepụkwa tentacles ya niile (jiri uwe aka ma ọ bụ akwa).
  • Maka box jellyfish nke ebe okpomọkụ: wụsa vinega n'ebe ọ gbara ọ dịkarịa ala sekọnd 30, kpọọ maka enyemaka, dịkwa njikere ime CPR. Maka bluebottles na ọtụtụ ndị ọzọ: jiri mmiri osimiri saa ya, wee jiri mmiri ọkụ maka mgbu ahụ.

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 otu gbaa gị: dị jụụ, emegharịla ahụ, kpọọ nọmba mberede gị (112, 000, 911) ma ọ bụ gaa ụlọ ọgwụ ngwa ngwa. Cheta ka o si dị, foto na-enye aka.

Ọ naghị achụ gị. Ọ na-eji nsị ya ejide nri ma ọ bụ chebe onwe ya, ọ ga-akakwa mma n'anya ya ịzo onwe ya. Ihe ndị ọzọ gbasara ịnọ na nchekwa

Ebee n'ụwa?

AfrịkaEshiaYuropUgwu AmerikaNdịda AmerikaỌstrelia na OsheniaAntaktikaOké Osimiri PasifikOké Osimiri AtlantikOké Osimiri IndiaOké Osimiri NdịdaOsimiri Mediterenian

Ọ hà aṅaa?

Kedu otú o si dị ogologo?

By-the-wind sailor ogologo ya dị ihe dị ka 7 cm (2.8 in)Pepa klip ihe dị ka 3 cm (1.2 in)Ekwentị smartphone ihe dị ka 15 cm (5.9 in)
dị ogologo dị ka blọk egwuregwu 2 n'ahịrịnwere ike igwu mmiri ogologo nnukwu ọdọ igwu mmiri (50 m) n'ime sekọnd 180

Kedu otú By-the-wind sailor si hà ma e jiri ya tụnyere GỊ?

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Kedu otú o si agba ọsọ?

ọ dị mma ịmara

Eziokwu

1

Its floating colonies are mirror images of each other, either 'left-handed' or 'right-handed', and this affects where they drift. In the northern Pacific, one form tends to drift to North America and the other to eastern Asia, such as Japan.1

2

Each blue 'animal' with a sail is really a colony of linked polyps that share food through a canal system.1

3

Each colony is either all male or all female.1

4

Its sail is not a fin. It works like a sail, so the animal tends to drift downwind at a small angle to the wind.1

5

Its tiny jellyfish carry zooxanthellae, single-celled organisms that use sunlight to provide energy, a feature also found in corals.1

6

It has no means of moving other than its sail, so it depends on prevailing winds, and mass strandings on beaches happen in many parts of the world.1

Onye na-ekpughe akụkọ ụgha

Akụkọ ụgha: Each blue sail is a single, simple animal.

Eziokwu: Each apparent individual is a colony of many connected polyps that share food and divide the work between feeding, reproductive and protective polyps.1

Maka ndị ọkachamara nsị

Aha sayensị
Velella velella
Otu
Jelifish na anụ osimiri na-agba agba
Ezinụlọ
Porpitidae2
Usoro
Anthoathecata
Kọntinent dị iche iche
Oké Osimiri Pasifik, Oké Osimiri Atlantik, Oké Osimiri India, Osimiri Mediterenian, Oké Osimiri Ndịda, Antaktika, Oké osimiri niile
Ụmụ ọhụrụ
Each colony's feeding polyps (gonozooids) bud off thousands of tiny jellyfish, each about 1 mm wide, over several weeks. These develop into a free-swimming larva called a conaria, which grows into a new floating colony.1
Ihe ize ndụ nye mmadụ
1 / 5: Obere3

Ebe eziokwu ndị a si

  1. Velella (Wikipedia (CC BY-SA 4.0))
  2. Velella velella (iNaturalist): aha na nhazi ọkwa.
  3. 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.

Akpị agụụ na-agụ! Venom Wiki bụ ọrụ otu onye: n'efu, na-enweghị mgbasa ozi na ndị na-esochi gị. Obere onyinye na-enyere aka idebe ya n'ịntanetị.Nye akpị nri

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