Cannonball jellyfish
The cannonball jellyfish is a round, dome-shaped jellyfish that looks a bit like a cannonball. It lives in warm coastal waters on both sides of the Americas and in parts of Asia, and it is common in shallow water near the coast. It matters because it is one of the most common causes of minor jellyfish stings in US and Caribbean waters.1

Tsela ya go e lemoga
- Dome-shaped bell that can reach 25 cm in diameter1
- The rim of the bell is often coloured with brown pigment1
- A cluster of oral arms under the body, extending out around the mouth1
- Some related species found in the Pacific and South Atlantic are pale to blue in colour1
Gantsi e tlhakanngwa le: Several undescribed Stomolophus species in the Pacific and South Atlantic have pale to blue pigment. They are genetically different from the cannonball jellyfish of the North Atlantic, but they are often misidentified as that species.1
Maatla a botlhole
Dikete tsa disele tse dinnye tse di tlhabang di a thuntsha fa sengwe se di ama.
Botlhole jo e bo tsenyang bo dira eng?
They release a mucus from their nematocysts (stinging cells) that contains a toxin when disturbed. The toxin can cause irregular heart rhythms and problems in the heart's conduction pathways, although this is not common in people. Contact with the nematocysts can be very painful and may cause redness and swelling, and the toxin is also harmful to the eyes.1
E kotsi go le kae go batho?
Kotsi go batho: Kotsi e nnyeJaaka go tlhabiwa ke notshe kgotsa go le kwa tlase. Ga e na kotsi go batho.Cannonball jellyfish are mostly harmless to people. Contact usually causes slight itching or minor eye irritation. They are among the most common causes of minor stings in US and Caribbean waters. Their toxin can cause heart problems in animals and humans, but this does not usually happen.1
E dira eng fa e tshogile?
When disturbed, they release a toxic mucus from their nematocysts, which harms small fish nearby and drives away most predators.1
Fa e tlhaba
- Tswa mo metsing mme o tlose mesela (tentacles) epe fela e e setseng (ka ditlelafo kgotsa ka lesela).
- Ya dijelifishi tsa lebokoso tsa tropiki: tshela asene mo mafelong a a tlhabilweng bonnye metsotswana e le 30, bitsa thuso mme o ipaakanyetse go dira CPR. Ya dibluebottle le tse dingwe tse dintsi: tlhatswa ka metsi a lewatle, morago ka metsi a a mogote go fokotsa botlhoko.
Ka gale leletsa nomoro ya gago ya tshoganyetso pele (112, 000, 911). Se ke kaelo e e akaretsang ya thuso ya ntlha, ga se kgakololo ya bongaka. Motheo wa thuso ya ntlha
Nna o babalesegile
- O se ka wa ama, wa tshwara kgotsa wa tshwenya phologolo ya naga, le fa e le e nnye, le fa e lebega e robetse kgotsa e sule.
- E fe sebaka. Fa o kopana le yone, ritibala, boela morago ka bonya mme o e tlogele e tsamaye ka tsela ya yone.
- Fa e nngwe e go tlhaba: ritibala, o se ka wa tshikinyega, leletsa nomoro ya gago ya tshoganyetso (112, 000, 911) kgotsa o ye bookelong ka bonako. Gopola gore e ne e lebega jang, setshwantsho se a thusa.
Ga e go batle. E dirisa botlhole jwa yone go tshwara dijo kgotsa go itshireletsa, mme e rata go iphitlha go feta. Go le gontsi ka go nna o babalesegile
Kae mo lefatsheng?
E kgolo go le kae?
E telele go le kae?
boleele jo bo lekanang le diboloko tsa go aga tsa ditshamekisi di le 8 mo molengCannonball jellyfish e kgolo go le kae fa e bapisiwa le WENA?
Ke dipalo fela mo sefetleng sa gago (browser). Ga go sepe se se bolokwang kgotsa se se romelwang gope.
E bonako go le kae?
Dintlha
Juvenile portly spider crabs often live in the bell, eating some of the food the jellyfish catches. The jellyfish is not harmed because it can regenerate its tissue. One jellyfish has been seen with up to ten crabs in its bell.1
Jellyfish are commercially harvested as food. In Georgia, jellyball fishing is the state's third largest commercial fishery.1
The endangered leatherback sea turtle is one of their main predators.1
In 2012, El Golfo de Santa Clara in Mexico harvested 20,000 tons of these jellyfish from late April to early July.1
Mosenyi wa ditlhamane
Tlhamane: Cannonball jellyfish are dangerous to people.
Nnete: They are mostly harmless to people. Contact usually causes only slight itching or minor eye irritation.1
Ya baitseanape ba botlhole
- Leina la saense
- Stomolophus meleagris
- Setlhopha
- Dijelifishi le dibopiwa tsa lewatle tse di tlhabang
- Lelapa
- Stomolophidae2
- Lekoko
- Rhizostomeae
- Dikontinente
- Lewatle la Atlantic, Lewatle la Caribbean, Gulf ya Mexico, Gulf ya California, Mawatle
- Masea
- They can reproduce sexually or asexually. Sexual reproduction happens when a cannonball shoots sperm from its mouth and another cannonball catches it. The embryos develop in pouches on the oral arms, then the larvae settle on hard surfaces and grow into polyps.1
- Kotsi go batho
- 1 / 5: Kotsi e nnye3
Kwa dintlha di tswang teng
- Cannonball jellyfish (Wikipedia (CC BY-SA 4.0))
- Stomolophus meleagris (iNaturalist): maina le thulaganyo ya mefuta.
- Venom Wiki: seelo sa kotsi, bogolo jo bo tlwaelegileng le kakanyo ya lebelo ke tsa rona. Bona kafa re di balang ka teng: Kafa re lekanyang kotsi ka teng.
Ntlha nngwe le nngwe mo tsebeng e e na le nomoro e e supang motswedi wa yone. Fa re dirile phoso, maitshwarelo, re barati ba diphologolo, e seng kgatiso ya saense. Re bolelele kwa [email protected] mme re tla e baakanya.
Mesela e e tlhabang
