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Setshwantsho sa khathune sa Christmas tree hydroid
No. 1129 ho 1 402

Christmas tree hydroid

Pennaria disticha
E utlwisa bohloko feelaE a utlwisa bohloko, empa e ke ke ya o lematsa haholo.
Kotsi ho batho: E bohlokoE ka utlwisa bohloko haholo, empa hoo e batlang e le kamehla ha e kotsi haholo.

The Christmas tree hydroid is a small, branching sea creature that grows in colonies on rocks and hard surfaces in shallow water. It is found in warm seas around the world, and it is common in the Mediterranean Sea. Scientists have used it to study how animals catch their prey.1

E phela
Warm waters worldwide; probably began in the western Atlantic Ocean, and is common in the Mediterranean Sea1
Lewatle la Atlantic, Lewatle la Pacific, Lewatle la India, Lewatle la Caribbean, Lewatle la Mediterranean, Kgwohlo ya Mexico, Lewatle la Timor le Arafura, Kgwohlo ya Bengal, Kgwohlo ya California
Lapeng
It grows in shallow water, attached to hard surfaces such as rocks and man-made structures, in places with some water movement. On reefs it is usually found in less-exposed spots and in crevices. It has also spread on ropes and other structures placed in the sea.1
Bolelele
30 cm (1 ft)1
Lebelo le phahameng
e ka bang 0,01 km/h (0,01 mph)
Ho sesa, kakanyo feela
E ja eng?
The polyps spread their tentacles to catch small zooplankton that drift past. Stinging cells on the tentacles immobilise the prey, then the crown bends over and the prey is killed and pushed into the mouth.1
Ka nnete!Foto ya Christmas tree hydroid
Christmas tree hydroid. Foto: Stephen Thorpe. CC BY 4.0, iNaturalist.

Ho e tseba jwang

  • Colonies have many branching stems, up to 30 cm high, arranged in a tree-like shape1
  • The stalks are dark brown or blackish, but are often coated with algae and diatoms, giving them a muddy look1
  • The tiny whitish polyps are tinged with red1
  • Each polyp has many slender tentacles at its base and up to twelve tentacles with knobbed tips around its mouth1

Matla a chefo

Ho hlaba

Chefo e tswa ka lemao le hlabang.

Chefo ya yona (eo e e kenyang ka ho loma kapa ho hlaba) e etsang?

Contact with a rope on which this hydroid was growing caused an acute, painful skin inflammation (dermatitis) in several people. Contact with the stinging cells on its tentacles is the cause.1

E kotsi hakae ho batho?

Kotsi ho batho: E bohlokoE ka utlwisa bohloko haholo, empa hoo e batlang e le kamehla ha e kotsi haholo.

Several people who touched a rope covered in this hydroid got an acute, painful dermatitis. No deaths are known.1

Haeba e hlaba

  • Tswa metsing mme o tlose di-tentacle tsohle (ka ditlelafo kapa ka lesela).
  • Bakeng sa box jellyfish tsa tropike: tshela asene (vinegar) moo e hlabileng teng bonyane metsotswana e 30, bitsa thuso mme o itokisetse ho etsa CPR. Bakeng sa di-bluebottle le tse ding tse ngata: hlatswa ka metsi a lewatle, ebe ka metsi a tjhesang bakeng sa bohloko.

Kamehla letsetsa nomoro ya tshohanyetso pele (112, 000, 911). Ena ke tataiso e akaretsang ya thuso ya pele, hase keletso ya bongaka. Metheo ya thuso ya pele

Dula o bolokehile

  • O se ke wa ama, wa tshwara kapa wa tena phoofolo ya naheng, leha e le e nyenyane, le leha e shebahala e robetse kapa e shwele.
  • E fe sebaka. Ha o kopana le yona, dula o kgutsitse, kgutlela morao butle mme o e tlohele e tsamaye ka tsela ya yona.
  • Haeba e nngwe e o hlaba: dula o kgutsitse, o se ke wa sisinyeha, letsetsa nomoro ya tshohanyetso (112, 000, 911) kapa o ye sepetlele kapele. Hopola hore e ne e shebahala jwang, foto e a thusa.

Ha e o batle. E sebedisa chefo ya yona ho tshwara dijo kapa ho itshireletsa, mme e kgetha ho ipata. Ho eketsehileng ka ho dula o bolokehile

E kgolo hakae?

E telele hakae?

Christmas tree hydroid bolelele ba e ka bang 30 cm (1 ft)Banana e ka bang 18 cm (7,1 in)Katse ya lapeng e ka bang 50 cm (1,6 ft)
e telele jwaloka diboloko tsa ho bapala tse 9 molenge dieha ho feta kgofu ya serapeng

Christmas tree hydroid e kgolo hakae ha e bapiswa le WENA?

Ke dipalo feela ka hara sebatli sa hao. Ha ho letho le bolokwang kapa le romelwang kae kapa kae.

E potlaka hakae?

ho molemo ho tseba

Dintlha

1

It has spread around the world largely through people's maritime activities, by attaching to ships and structures.1

2

It has been used in research into how animals capture their prey.1

3

Colonies grow by budding, which forms new feeding polyps.1

4

Its free-swimming larvae drift with the plankton before settling on a hard surface.1

Bakeng sa ditsebi tsa chefo

Lebitso la saense
Pennaria disticha
Sehlopha
Di-jellyfish le diphoofolo tsa lewatle tse hlabang
Lelapa
Pennariidae2
Tatelano
Anthoathecata
Dikontinente
Lewatle la Atlantic, Lewatle la Pacific, Lewatle la India, Lewatle la Caribbean, Lewatle la Mediterranean, Kgwohlo ya Mexico, Lewatle la Timor le Arafura, Kgwohlo ya Bengal, Kgwohlo ya California, Mawatle
Masea
Females release up to six eggs. Each embryo develops within a day or so into a free-swimming larva called a planula, which later settles on a hard surface to start a new colony.1
Kotsi ho batho
2 / 5: E bohloko3

Moo dintlha di tswang teng

  1. Pennaria disticha (Wikipedia (CC BY-SA 4.0))
  2. Pennaria disticha (iNaturalist): mabitso le tlhophiso.
  3. Venom Wiki: boemo ba kotsi, boholo bo tlwaelehileng le kakanyo ya lebelo ke tsa rona. Bona kamoo re di balang ka teng: Kamoo re lekanyang kotsi ka teng.

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Tse ding tsa sehlopha se le seng: Di-jellyfish le diphoofolo tsa lewatle tse hlabang

E boetse e phela: Lewatle la Atlantic

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