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Topic: Box jellyfish


  
  Box jellyfish - Wikipedia, the free encyclopedia
Box jellyfish are water-dwelling invertebrates belonging to the class Cubozoa, named for their cube-shaped medusae.
Box jellyfish use powerful venom contained in epidermic nematocysts to stun or kill its prey prior to ingestion, or as an instrument for defense.
Some theorize box jellyfish actively hunt their prey—for effective hunting they move extremely quickly (moving at speeds up to 3 to 3.5 knots (1.5 to 1.8 m/s)) instead of drifting as do true jellyfish, and have an active visual system of 24 eyes located on the center of each side of its bell.
en.wikipedia.org /wiki/Box_jellyfish   (1072 words)

  
 Jellyfish - Wikipedia, the free encyclopedia
Jellyfish also have ocelli that cannot form images, but are sensitive to light; the jellyfish can use these to determine up from down, basing its judgement on sunlight shining on the surface of the water.
Jellyfish have limited control over their movement and mostly free-float, but can use a hydrostatic skeleton that controls the water pouch in their body to actuate vertical movement.
Sliced and marinated jellyfish bells (often known as sesame jellyfish or jellyfish salad) is a common appetizer in Chinese cuisine.
en.wikipedia.org /wiki/Jellyfish   (1982 words)

  
 Box jellyfish   (Site not responding. Last check: 2007-10-31)
Box jellyfish also known as sea wasps are jellyfish -like creatures found in Australia and the Philippines which can be extremely deadly with in their tentacles.
The largest of the box jellyfish Chironex fleckeri has venom which is very different other kinds of jellyfish - it has conjectured that the venom is more deadly enable them to catch their prey of and other small invertebrates.
There has been some theory in that jellyfish actively hunt their prey - for hunting they move extremely fast (moving at up to 3-3 1/2 knots (1.5 to 1.8 m/s)) and have active visual system of 48 eyes located on the center of each of the cubozoan's bell.
www.freeglossary.com /Cubozoa   (612 words)

  
 Box Jellyfish
The box jellyfish are usually transparent and may be a very pale blue in color.
Box jellyfish are commonly found on the northern shores of Australia, and often appear after a local rain.
Sidebar: From 1883, when the first reported death by box jellyfish was reported in Australia, through January, 2000, 68% of individuals stung by box jellyfish died from their stings.
www.surviveoutdoors.com /reference/box_jellyfish.asp   (342 words)

  
 Antivenin, Box Jellyfish (Systemic)
Box jellyfish antivenin belongs to a group of medicines known as antivenins.
It is used to treat the symptoms caused by the stings of box jellyfish, such as the sea wasp and another related species of jellyfish.
Box jellyfish antivenin is to be used only by or under the supervision of a doctor or, in special circumstances, by paramedics.
allnutritionals.com /drugs/a/antivenin-boxjellyfish-systemic.shtml   (546 words)

  
 box jellyfish - Search Results - MSN Encarta
Box, common name for a family of plants (Spurge).
Common box is native to southern Europe and parts of Asia.
Jellyfish, common name for any of the invertebrate animals making up two classes of the cnidarian phylum.
encarta.msn.com /box+jellyfish.html   (124 words)

  
 Box Jellyfish chironex fleckeri Australian jelly fish
Box Jellyfish are pale blue and transparent and bell or cubed shaped with four distinct sides, hence box jellyfish.
Measuring up to 20 cm along each side of the cube or bell, the Box Jellyfish has up to as many as 15 tentacles on each corner which can be 3 metres in length with up to 5,000 nematocysts (stinging cells).
The box jellyfish seem to move towards the shore in calm waters when tide is rising and gather near the mouths of rivers, estrays and creeks following the rain.
www.cairnsholiday.com.au /GreatBarrierReef/box_jellyfish.htm   (252 words)

  
 Box jellyfish
Box jellyfish (Chironex fleckeri)are a hazard to Pacific swimmers and divers.
Chironex is an almost clear, box-shaped jellyfish, quite agile, and very difficult to see in the water, with many tentacles trailing from the four corners of its "bell".
Box jellyfish are often numerous after rain in the vicinity of creek outlets and are usually absent when the seas are rough.
www.scuba-doc.com /boxjel.html   (417 words)

  
 Pharyngula::Jellyfish eyes
In box jellyfish we find these large complex receptive fields at the level of photoreceptors, indicating that the eyes might be specialized for a specific task only and that this allows complex filtering of information much earlier than in more general visual systems.
The fact that box jellyfish have four different types of eye gives support to the idea that each eye type is highly specialized.
Jellyfish are notoriously difficult to keep in captivity so I doubt that any systematic experiments have been done.
pharyngula.org /index/weblog/comments/jellyfish_eyes   (2378 words)

  
 Box Jelly Fish, dangers on the great barrier reef
Box Jellyfish are pale blue and transparent and bell or cubed shaped with four distinct sides, therefore the name box jellyfish.
The box jellyfish seem to move towards the shore in calm waters when tide is rising and gather near the mouths of rivers, estuaries and creeks following the rain.
The arrival of the Box Jellyfish close to the beach prevents swimming in the Surf unless the beaches have the protective stinger nets installed or you wear a purpose designed swim costume.
www.barrierreefaustralia.com /the-great-barrier-reef/jellyfish.htm   (405 words)

  
 Poisonous Animals: Box jellyfish, Boxfish, Deadly sea wasp (Chironex fleckeri)
Box jellyfish is considered the most venomous marine creature.
According to recent discoveries, the box jellyfish is able to see through four eyes, one at the center of each side of the bell.
The box jellyfish is, however, the most lethal member of its family.
library.thinkquest.org /C007974/2_1box.htm   (549 words)

  
 Jellyfish   (Site not responding. Last check: 2007-10-31)
Jet propulsion in jellyfish is possible because of special muscles called coronal muscles, embedded on the underside of the bell, which push water out of the hollow bell.  As water is pushed in one direction, the jellyfish moves in the opposite direction.
Jellyfish have a short lifespan, the longest surviving species living only two to six months, usually perishing in rough waters or being eaten by predators—ocean sunfish and leatherback turtles are two of the most prevalent jellyfish predators.  (Researchers do not know how turtles and other predators can eat poisonous nematocysts without harming themselves.
Jellyfish are incredibly fragile, yet also incredibly complex.  They ‘breathe’ through the entire surface of their bodies, which is able to absorb oxygen and release carbon dioxide, and, even after death, are able to continue to deliver poison from their stingers if the tentacles remain moist.
www.answersingenesis.org /creation/v25/i4/nobrain.asp   (1163 words)

  
 Box jellyfish aka Sea wasp
There isn’t a clear Box jellyfish (sea wasp) season on Hawaii like there is in Australia and the Box jellyfish (sea wasp) is instead present all year around and can usually be found in shallow waters and on beaches around 8-10 days after the full moon.
Box jellyfish (sea wasp) have a bell or cube like form that are divided into form segments.
Box jellyfish (sea wasp) sting are causing a high number of deaths each year in effected areas.
www.aquaticcommunity.com /universal-viewid209.html   (665 words)

  
 Jellyfish: A Dangerous Ocean Organism of Hawaii
Jellyfish are any planktonic marine member of a group of invertebrate animals composed of about 200 described species of the class Scyphozoa (phylum Cnidaria) or of the class Cubozoa, which was formerly considered an order of Scyphozoa.
Portuguese man-of-war which technically is not a jellyfish but a pelagic colonial hydroid or hydrozoan), as well as unrelated forms such as salps and comb jellies.
The image of the man-of-war and the box jellyfish compared is courtesy of Susan Scott and is used with permission.
www.aloha.com /~lifeguards/jelyfish.html   (1706 words)

  
 Box jellyfish - Uncyclopedia
The Box jellyfish is part of a large group of domestic pests that can infest the most mundane household articles.
Difficult to eradicate due to their rapid colonisation of items in their larvae form, and then rapid growth, box jellyfish are known to survive in air-conditioning cooling towers and escalator mechanisms, where they feed on foodscraps and other deposits.
They are especially attracted to the bright colours on giftwrapping, and for most people, their first introduction to the Box jellyfish is the arrival of a parcel or gift box from the local postal or delivery service.
www.uncyclopedia.org /wiki/Box_jellyfish   (184 words)

  
 Jellyfish Sting Facts by MedicineNet.com
Stings from true jellyfish (scyphozoans) are generally less toxic than those of the hydrozoans and cubozoans and usually result in injury only to the parts of the skin where contact with the tentacles occurs.
The box jellyfish found in Australian waters has venom so deadly that it may cause cardiovascular collapse along with respiratory and neuromuscular paralysis that can kill an adult within minutes.
Poisonings by the box jellyfish of Australia require the administration of an antivenom, which reverses the effect of the poison.
www.medicinenet.com /script/main/art.asp?articlekey=62024   (477 words)

  
 The Honolulu Advertiser | Island Life
Portuguese man-of-war float on the surface with a bluish purple gas-filled sac, and are blown in by trade winds; this is why they frequent the windward side of the island and often sting surfers and swimmers there.
Box jellyfish are clear and difficult to see, but aside from the days when they approach shore to spawn, they linger in deep water and pose little threat to anybody except divers.
The "classic box jellyfish sting in Hawaii causes immediate, sometimes severe, pain and a burning sensation lasting 10 minutes to eight hours," he wrote.
the.honoluluadvertiser.com /2001/Feb/01/21islandlife12.html   (488 words)

  
 Classifying box jellyfish
Jellyfish with box-shaped bodies or bells are called cubozoan jellyfish.
Chirodropid jellyfish have multiple tentacles hanging from each of the four corners of their bells while carybdeids usually have a single tentacle hanging from each corner.
Stinging cells of some cubozoan jellyfish are concentrated in bands on the tentacles.
www.reef.crc.org.au /publications/brochures/Classifyingboxjellyfish.htm   (375 words)

  
 JYI.org :: The Box Jellyfish: Australia’s Other Marine Killer
Box jellyfish have a square-shaped float with tentacles streaming from the corners of the bell.
This box jellyfish is similar to the species responsible for Irukandji Syndrome.
Compared to true jellyfish that drift aimlessly on the wind and current, the sea wasp is a speed demon.
www.jyi.org /features/ft.php?id=189   (1513 words)

  
 News in Science - Box jellyfish take a siesta - 24/08/2005
Box jellyfish nap in the afternoon, according to Australian research.
It was also thought that box jellyfish swim up creeks towards the end of the season to reproduce but there was no concrete evidence of this until late April when one jellyfish was followed up an estuary.
Box jellyfish may be threat all year round, News in Science 10 Dec 2002
www.abc.net.au /science/news/stories/s1444257.htm   (424 words)

  
 Box Jellyfish - Search Results - ninemsn Encarta   (Site not responding. Last check: 2007-10-31)
Box Jellyfish - Search Results - ninemsn Encarta
Common box is native to Europe and parts of Asia.
Jellyfish, common name for any of the invertebrate animals making up two classes of the cnidarian (coelenterate) phylum.
au.encarta.msn.com /Box_Jellyfish.html   (115 words)

  
 Jellyfish! Information about Jellyfish
Jellyfish (Early Bird Nature Books) Describes the life cycle, habitat, behavior, and physical structure of the soft bodied sea animal that has no brain or bones.
Sizes: Jellyfish come in a wide variety of sizes and shapes, from the 1" thimble size Caribbean jellyfish to the Arctic Lion's Mane's jellyfish with tentacles as long as 100 feet, and weighing up to a ton.
These jellyfish can see, man. The box jellyfish, known for their square-shaped bodies, are more sophisticated than most jellyfish species.
www.redjellyfish.com /wildlife/jellyfish.html   (984 words)

  
 RedOrbit - Science - Box Jellyfish Has 360-Degree Vision
PARIS (AFP) -- The box jellyfish, a denizen of tropical waters, has one of the most sophisticated optical systems in the marine world, with 24 eyes to give itself all-round vision even though it lacks a brain to handle what they see, scientists have found.
The position of the retinas and the lack of a brain -- the jellyfish has a diffuse network of nerves rather than a central nervous system -- means it is unlikely that the eight camera-type eyes can focus on fine details.
The box jellyfish has trailing tentacles two to three metres (6.5 to 10 feet) long that can pack a lethal sting for swimmers.
www.redorbit.com /news/display/?id=149395&source=r_science   (273 words)

  
 Jellyfish Stings
Jellyfish are aquatic animals that can cause a "sting" when they come into direct contact with humans or other animals.
True jellyfish (scyphozoans) are the most common species of jellyfish in North America.
As a rule, their stings are considerably less toxic than the hydrozoans and are usually limited to eruptions of the skin where contact took place.
www.emedicinehealth.com /jellyfish_stings/article_em.htm   (379 words)

  
 Cubozoa   (Site not responding. Last check: 2007-10-31)
But because of their unique box shape medusae, they were recently reclassified into their own order.
Box jellyfish reproduce when fertilization occurs between male and female.
Box jellyfish are considered to be the strong swimmers of the cnidarians.
www.personal.psu.edu /users/k/a/kaa191/cubozoa.html   (233 words)

  
 Box Jellyfish
The Box Jellyfish (also known as a Sea Wasp) is a very dangerous creature to inhabit Australian waters.
The Jellyfish has extreme toxins present on its tentacles, which when in contact with a human, can stop cardio-respiratory functions in as little as three minutes.
This deadly species of jellyfish is related to another deadly jellyfish, the irukandji jellyfish.
www.australianfauna.com /boxjellyfish.php   (169 words)

  
 Wilderness: Jellyfish Sting
Jellyfish are free-swimming, bell-shaped, gelatinous creatures with tentacles that may be more than 3 feet in length.
Jellyfish that are harmful to humans are distributed throughout the world.
Harmful jellyfish have stingers (nematocysts) capable of piercing the skin.
www.emedicinehealth.com /wilderness_jellyfish_sting/article_em.htm   (189 words)

  
 jellyfish
If you are headed to the ocean for vacation, or live near it, you need to know about jellyfish: the potential for painful and sometimes dangerous stings, and what to do about them.
As you are aware, jellyfish stings can produce a variety of unpleasant or dangerous effects.
The box jellyfish is native to waters off the northern coast of Australia and in parts of the Indo-Pacific.
www.drhull.com /EncyMaster/J/jellyfish.html   (431 words)

  
 Information about the box jellyfish, which killed Ian McCormack who then experienced Heaven and Hell before returning ...   (Site not responding. Last check: 2007-10-31)
Information about the box jellyfish, which killed Ian McCormack who then experienced Heaven and Hell before returning to life as a born-again christian.
The Box Jellyfish is also known as the Marine Stinger or Sea Wasp.
For a fully-grown jellyfish, the bell, or body, can be as large as a basketball, and it might have 60 tentacles up to 3 metres long.
www.aglimpseofeternity.org /boxjellyfish.htm   (279 words)

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