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Katuni ya By-the-wind sailor
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By-the-wind sailor

Velella velella
Kuhusu jina: Its common name refers to its small sail, which catches the wind and carries the animal across the sea.1
Hana madharaHana madhara kwa watu. Hakuna cha kuhofia.
Yavuyavu na wadungaji wa baharini Mikono inayodungaHula: Nyama
Hatari kwa watu: HafifuKama kudungwa na nyuki au chini ya hapo. Kimsingi hana madhara kwa watu.

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

Anaishi
Warm and temperate waters of all the world's oceans1
Bahari ya Pasifiki, Bahari ya Atlantiki, Bahari ya Hindi, Bahari ya Mediterania, Bahari ya Kusini, Antaktika
Nyumbani
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
Urefu
7 cm (2.8 in)1
Kasi ya juu
takriban km 1 kwa saa (maili 0.62 kwa saa)
Kuogelea, makadirio
Hula nini?
It eats mostly plankton. It catches prey with tentacles that hang down in the water and bear stinging cells called nematocysts.1
Kweli kabisa!Picha ya By-the-wind sailor
By-the-wind sailor. Picha: Niki Hubbard. CC BY 4.0, iNaturalist.

Jinsi ya kumtambua

  • 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

Nguvu ya sumu

Mikono inayodunga

Maelfu ya seli ndogo za kudunga hufyatuka kitu kikizigusa.

Sumu yake hufanya nini?

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

Ana hatari gani kwa watu?

Hatari kwa watu: HafifuKama kudungwa na nyuki au chini ya hapo. Kimsingi hana madhara kwa watu.

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

Akidunga

  • Toka majini na uondoe vipande vya mikono iliyonata (kwa glavu au kitambaa).
  • Kwa yavuyavu sanduku wa kitropiki: mimina siki kwenye sehemu zilizodungwa kwa angalau sekunde 30, omba msaada na uwe tayari kufanya CPR. Kwa mabotoli ya bluu na wengine wengi: suuza kwa maji ya bahari, kisha maji ya moto kupunguza maumivu.

Daima piga namba ya dharura kwanza (112, 000, 911). Huu ni mwongozo wa jumla wa huduma ya kwanza, si ushauri wa kitabibu. Misingi ya huduma ya kwanza

Kaa salama

  • Kamwe usimguse, kumkamata wala kumchokoza mnyama wa porini, hata akiwa mdogo, na hata akionekana amelala au amekufa.
  • Mpe nafasi. Ukikutana naye, tulia, rudi nyuma polepole na umwache aende zake.
  • Akikudunga: tulia, usitikisike, piga namba yako ya dharura (112, 000, 911) au nenda hospitali haraka. Kumbuka alivyoonekana, picha husaidia.

Hakuwindi wewe. Hutumia sumu yake kukamata chakula au kujilinda, na hupendelea zaidi kujificha. Zaidi kuhusu kukaa salama

Wapi duniani?

AfrikaAsiaUlayaAmerika KaskaziniAmerika KusiniAustralia na OceaniaAntaktikaBahari ya PasifikiBahari ya AtlantikiBahari ya HindiBahari ya KusiniBahari ya Mediterania

Ana ukubwa gani?

Ana urefu gani?

By-the-wind sailor urefu wa takriban 7 cm (2.8 in)Kibanio cha karatasi takriban 3 cm (1.2 in)Simu janja takriban 15 cm (5.9 in)
urefu sawa na matofali 2 ya kuchezea yaliyopangwa mstariangeweza kuogelea urefu wa bwawa kubwa (m 50) kwa sekunde 180

By-the-wind sailor ana ukubwa gani ukilinganisha na WEWE?

Ni hesabu tu kwenye kivinjari chako. Hakuna kinachohifadhiwa wala kutumwa popote.

Ana kasi gani?

inafaa kujua

Ukweli

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

Kuvunja dhana potofu

Dhana potofu: Each blue sail is a single, simple animal.

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

Kwa wataalamu wa sumu

Jina la kisayansi
Velella velella
Kundi
Yavuyavu na wadungaji wa baharini
Familia
Porpitidae2
Mpangilio
Anthoathecata
Mabara
Bahari ya Pasifiki, Bahari ya Atlantiki, Bahari ya Hindi, Bahari ya Mediterania, Bahari ya Kusini, Antaktika, Bahari kuu
Watoto
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
Hatari kwa watu
1 / 5: Hafifu3

Ukweli unatoka wapi

  1. Velella (Wikipedia (CC BY-SA 4.0))
  2. Velella velella (iNaturalist): majina na uainishaji.
  3. Venom Wiki: kiwango cha hatari, ukubwa wa kawaida na makadirio ya kasi ni yetu wenyewe. Ona jinsi tunavyovipata: Jinsi tunavyopima hatari.

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