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Christmas tree hydroid

Pennaria disticha

Kubuhlungu njeKubuhlungu, kodwa akusayi kukwenzakalisa kakhulu.

Iijelifishi nezinye izilwanyana zaselwandle ezihlabayo

UkuhlabaSitya: Inyama

Ingozi ebantwini: KubuhlunguKunokuba buhlungu ngokwenene, kodwa phantse akusoze kube kubi kakhulu.

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

Sihlala

Warm waters worldwide; probably began in the western Atlantic Ocean, and is common in the Mediterranean Sea1

uLwandlekazi lweAtlantiki, uLwandlekazi lwePasifiki, uLwandlekazi lwaseIndiya, uLwandle lweKharibhiya, uLwandle lweMeditera, iGulf yaseMexico, uLwandle lweTimor ne-Arafura, iBhayi yaseBengal, iGulf yaseCalifornia

Ekhaya

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

Ubude

30 cm (1 ft)1

Esona santya siphezulu

malunga ne-0,01 km/h (0,01 mph)

Ukuqubha, uqikelelo nje

Sitya ntoni?

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

Ifoto ka-Christmas tree hydroid — Christmas tree hydroid. Ifoto: Stephen Thorpe. CC BY 4.0, iNaturalist.

Indlela yokusiqaphela

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

Amandla etyhefu yokuluma nokuhlaba

Ukuhlaba

Ityhefu iphuma ngenaliti yokuhlaba.

Ityhefu yaso yokuluma okanye yokuhlaba yenza ntoni?

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

Siyingozi kangakanani ebantwini?

Ingozi ebantwini: KubuhlunguKunokuba buhlungu ngokwenene, kodwa phantse akusoze kube kubi kakhulu.

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

Ukuba siyahlaba

Phuma emanzini kwaye ususe naziphi na ii-tentacle (ngeiglavu okanye ngelaphu).
Kwiijelifishi zebhokisi (box jellyfish) zasetropiki: thela iviniga kwiindawo ezihlatyiweyo ubuncinane imizuzwana engama-30, biza uncedo kwaye ulungele ukwenza i-CPR. Kwii-bluebottle nakwezinye ezininzi: hlambulula ngamanzi olwandle, emva koko usebenzise amanzi ashushu ngenxa yeentlungu.

Soloko utsalela inombolo kaxakeka kuqala (112, 000, 911). Esi sisikhokelo soncedo lokuqala ngokubanzi, asilocebiso lwezonyango. Iziseko zoncedo lokuqala

Hlala ukhuselekile

Ungaze uchukumise, ubambe okanye uqhule isilwanyana sasendle, nokuba sincinci, kwaye nokuba sibonakala silele okanye sifile.
Sinike indawo. Ukuba udibana naso, hlala uzolile, buyela umva kancinci kwaye usiyeke sihambe ngendlela yaso.
Ukuba siyakuhlaba: hlala uzolile, musa ukushukuma, tsalela inombolo kaxakeka (112, 000, 911) okanye uye esibhedlele ngokukhawuleza. Khumbula ukuba sasikhangeleka njani, ifoto iyanceda.

Asikuzingeli. Sisebenzisa ityhefu yaso ukubamba ukutya okanye ukuzikhusela, kwaye singakhetha ukuzimela. Okungakumbi malunga nokuhlala ukhuselekile

Phi emhlabeni?

IAfrika IAsiya IYurophu uMntla Melika uMzantsi Melika IOstreliya neOceania uLwandlekazi lwePasifiki uLwandlekazi lweAtlantiki uLwandlekazi lwaseIndiya uLwandle lweMeditera uLwandle lweKharibhiya iGulf yaseMexico uLwandle lweTimor ne-Arafura iBhayi yaseBengal iGulf yaseCalifornia

Sikhulu kangakanani?

Side kangakanani?

ubude obulingana neebhloko zokudlala zokwakha eziyi-9 zilandelelanasicotha kunenkumba yasegadini

U-Christmas tree hydroid mkhulu kangakanani xa uthelekisa NAWE?

Zizibalo nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwa naphi na.

Sikhawuleza kangakanani?

Ihashe lolwandle malunga ne-0,0015 km/h (0 mph)

Christmas tree hydroid malunga ne-0,01 km/h (0,01 mph)

Inkumba yasegadini malunga ne-0,05 km/h (0,03 mph)

kufanelekile ukwazi

Iinyaniso

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

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

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

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

Kwiingcali zetyhefu

Igama lenzululwazi: Pennaria disticha
Iqela: Iijelifishi nezinye izilwanyana zaselwandle ezihlabayo
Usapho: Pennariidae2
Ucwangco: Anthoathecata
Amazwekazi: uLwandlekazi lweAtlantiki, uLwandlekazi lwePasifiki, uLwandlekazi lwaseIndiya, uLwandle lweKharibhiya, uLwandle lweMeditera, iGulf yaseMexico, uLwandle lweTimor ne-Arafura, iBhayi yaseBengal, iGulf yaseCalifornia, Iilwandlekazi
Iintsana: 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
Ingozi ebantwini: 2 / 5: Kubuhlungu3

Apho iinyaniso zivela khona

Pennaria disticha (Wikipedia (CC BY-SA 4.0))
Pennaria disticha (iNaturalist): amagama nokuhlelwa.
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