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Àwòrán kátúùnù By-the-wind sailor
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By-the-wind sailor

Velella velella
Nípa orúkọ náà: Its common name refers to its small sail, which catches the wind and carries the animal across the sea.1
AláìléwuKò léwu fún ènìyàn. Kò sí ohun tó yẹ kí ó dààmú ọ.
Jellyfish àti àwọn ẹ̀dá òkun tó ń ta ni Okùn-ọwọ́ tó ń ta ni (tentacles)Oúnjẹ rẹ̀: Ẹran
Ewu fún ènìyàn: Fúyẹ́Bí ìtani oyin tàbí kò tó bẹ́ẹ̀. Kò fẹ́rẹ̀ẹ́ léwu fún ènìyàn.

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

Ó ń gbé ní
Warm and temperate waters of all the world's oceans1
Òkun Pàsífíìkì, Òkun Àtìláńtíìkì, Òkun Íńdíà, Òkun Mẹditaréníà, Òkun Gúúsù, Antáktíkà
Ilé
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
Gígùn
7 cm (2.8 in)1
Ìyára gíga jùlọ
nǹkan bí 1 km/h (0.62 mph)
Lílúwẹ̀ẹ́, àfojúbù
Kí ni ó máa ń jẹ?
It eats mostly plankton. It catches prey with tentacles that hang down in the water and bear stinging cells called nematocysts.1
Ní tòótọ́!Fọ́tò By-the-wind sailor
By-the-wind sailor. Fọ́tò: Niki Hubbard. CC BY 4.0, iNaturalist.

Bí o ṣe lè dá a mọ̀

  • 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

Agbára oró

Okùn-ọwọ́ tó ń ta ni (tentacles)

Ẹgbẹẹgbẹ̀rún sẹ́ẹ̀lì ìtani kékeré máa ń ta jáde nígbà tí nǹkan bá fọwọ́ kàn wọ́n.

Kí ni oró rẹ̀ máa ń ṣe?

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

Báwo ló ṣe léwu tó fún ènìyàn?

Ewu fún ènìyàn: Fúyẹ́Bí ìtani oyin tàbí kò tó bẹ́ẹ̀. Kò fẹ́rẹ̀ẹ́ léwu fún ènìyàn.

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

Bí ó bá ta ni

  • Jáde kúrò nínú omi kí o sì yọ gbogbo okùn-ọwọ́ rẹ̀ (tentacles) kúrò (pẹ̀lú ìbọ̀wọ́ tàbí aṣọ).
  • Fún box jellyfish ilẹ̀ olóoru: da ọtí kíkan (vinegar) sí ibi tí ó ti ta ni fún ó kéré tán ìṣẹ́jú-àáyá 30, pe fún ìrànlọ́wọ́ kí o sì múra láti ṣe CPR (ìmúsọjí ọkàn àti èémí). Fún bluebottles àti ọ̀pọ̀ àwọn yòókù: fi omi òkun fọ̀ ọ́, lẹ́yìn náà omi gbígbóná fún ìrora náà.

Máa kọ́kọ́ pe nọ́ńbà pàjáwìrì rẹ nígbà gbogbo (112, 000, 911). Èyí jẹ́ ìtọ́sọ́nà ìtọ́jú àkọ́kọ́ gbogbogbò, kì í ṣe ìmọ̀ràn ìṣègùn. Ìpìlẹ̀ ìtọ́jú àkọ́kọ́

Wà láìléwu

  • Má ṣe fọwọ́ kan, mú tàbí yọ ẹranko igbó lẹ́nu láéláé, kódà bí ó bá kéré, kódà bí ó bá dà bí ẹni pé ó ń sùn tàbí ó ti kú.
  • Fún un ní àyè. Bí o bá pàdé ọ̀kan, farabalẹ̀, sẹ́yìn díẹ̀díẹ̀ kí o sì jẹ́ kí ó máa bá ọ̀nà rẹ̀ lọ.
  • Bí ọ̀kan bá ta ọ́: farabalẹ̀, má ṣe mira, pe nọ́ńbà pàjáwìrì rẹ (112, 000, 911) tàbí lọ sí ilé ìwòsàn kíákíá. Rántí bí ó ṣe rí, fọ́tò máa ń ṣèrànwọ́.

Kò wá ọ kiri láti ṣe ọ́ léṣe. Ó ń lo oró rẹ̀ láti mú oúnjẹ tàbí láti dáàbò bo ara rẹ̀, ó sì fẹ́ràn láti farapamọ́ jù. Sí i nípa wíwà láìléwu

Báwo ló ṣe tóbi tó?

Báwo ló ṣe gùn tó?

By-the-wind sailor gígùn rẹ̀ tó nǹkan bí 7 cm (2.8 in)Pínì ìwé (paper clip) nǹkan bí 3 cm (1.2 in)Fóònù alágbèéká nǹkan bí 15 cm (5.9 in)
ó gùn tó bíríkì ìṣeré 2 tí a tò sí ìlà kanlè lúwẹ̀ẹ́ gígùn adágún ìwẹ̀ ńlá (50 m) ní ìṣẹ́jú-àáyá 180

Báwo ni By-the-wind sailor ṣe tóbi tó tí a bá fi wé ÌWỌ?

Ìṣirò nìkan nínú bráwúsà rẹ. A kò fi ohunkóhun pamọ́, a kò sì fi ránṣẹ́ sí ibikíbi.

Báwo ló ṣe yára tó?

ó yẹ ní mímọ̀

Òtítọ́

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

Olùfọ́ àròsọ

Àròsọ: Each blue sail is a single, simple animal.

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

Fún àwọn amòye oró

Orúkọ sáyẹ́ǹsì
Velella velella
Ẹgbẹ́
Jellyfish àti àwọn ẹ̀dá òkun tó ń ta ni
Ìdílé
Porpitidae2
Ètò
Anthoathecata
Àwọn kọ́ńtínẹ́ńtì
Òkun Pàsífíìkì, Òkun Àtìláńtíìkì, Òkun Íńdíà, Òkun Mẹditaréníà, Òkun Gúúsù, Antáktíkà, Àwọn òkun ńlá
Àwọn ọmọ
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
Ewu fún ènìyàn
1 / 5: Fúyẹ́3

Ibi tí àwọn òtítọ́ ti wá

  1. Velella (Wikipedia (CC BY-SA 4.0))
  2. Velella velella (iNaturalist): orúkọ àti ìpínsísọ̀rí.
  3. Venom Wiki: ìpele ewu, ìtóbi déédé àti àfojúbù ìyára jẹ́ tiwa. Wo bí a ṣe ń ṣírò wọn: Bí a ṣe ń díwọ̀n ewu.

Gbogbo òtítọ́ ojú-ìwé yìí ní nọ́ńbà tó tọ́ka sí orísun rẹ̀. Bí a bá ṣe àṣìṣe, má bínú, olólùfẹ́ ẹranko ni wá, kì í ṣe ìwé ìròyìn sáyẹ́ǹsì. Sọ fún wa ní [email protected] a ó sì tún un ṣe.

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Sí i láti inú ẹgbẹ́ kan náà: Jellyfish àti àwọn ẹ̀dá òkun tó ń ta ni

Ó tún ń gbé ní: Òkun Pàsífíìkì

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