Talk:Jellyfish/Archive 1

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Behavior

My Dad asked me about their swarming/schooling behavior and how they know how to behave that way with their limited nerve system (he thought they had none, actually, but it says here they have a nerve net). I checked here and there's no discussion of this. Please add this if you know about it! —Preceding unsigned comment added by AThousandYoung (talk • contribs) 16:04, 11 November 2007 (UTC)

why do jelly fish called jelly

Socratrical Expansion

Can we possibly expand on this blatant description? ... Or not!? yes we can or are you just scared of jellyfish

what can one do, once touched by those terrible tentachales? is ther any medical treatment? and to avoid having prolonged bruises?...please help me?

Pet jellyfish

Is it possible to keep pet jelly fish? I want one! -- Nojer2 14:29, 31 Mar 2005 (UTC)

As long as you're very careful and give it plenty of space, I don't see why you couldn't... --Beau99 03:35, 14 Jun 2005 (UTC)

i had one but it died.

Saw this, and loved it, but there are a lot of photos already. What species is it? Could we put it somewhere else? Guttlekraw 03:50, 24 May 2005 (UTC)

It looks a lot like a sea nettle, Chrysaora quinquecirrha, but maybe it's some other Chrysaora species. For taxobox images, we should go for images of identified species whenever possible, even at the expense of a lower-quality image. Gdr 18:19, 8 October 2005 (UTC)

Thanks for the info, but would someone be willing to provide a more detailed outline of this entry? The first section is intimidating, especially when searching for specific information. I'm not complaining... —The preceding unsigned comment was added by 00:45, 26 October 2005 (UTC) (talk • contribs) .

Colonies

I was told that jellyfish are colonies of smaller creatures (like the man-o-war?). Is this true? If it is, it was not clear from the article. Kellen ^T 01:17, 5 January 2006 (UTC)

No, though the Man o' War is indeed -- but it's not a jellyfish. // paroxysm (n) 23:42, 23 January 2006 (UTC)

Which came first - the jellyfish or the jelly? :-D

soccerball?

You could think of it as looking like a tiny hairy football. Are we talking about an American football, or a soccer football?

Wouldn't a soccer footbal be just called a soccerball?

-Alex 12.220.157.93 19:48, 27 December 2005 (UTC).

Not in any (almost) any country besides the United States, where it would be called a "football". Kellen ^T

In Australia you'd call it a soccer ball but a football would be either an Aussie Rules ball or a Rugby ball depending on the state/territory. Jimp 5Feb06

So which one is it then? A (proper) football, or a ball used in American and Aussie Rules Football as well as rugby? In instances such as this further clarification is needed as for most people in the world, as mentioned earlier, a "soccerball" is a football. hedpeguyuk 5Feb06

Edit section

Problem: edit section didn't work properly with the images in the article.

Fix: I used the {{ImageStackRight}} template. This is an elegant solution, but leaves the wikitext for all the images in the second section. For a less elegant solution see (or copy) my sandbox version. That version has each image's wikitext in the section where the picture actually appears. --TheLimbicOne(talk) 20:21, 26 January 2006 (UTC)

Thanks, I couldn't work out how to fix it. That looks nice. // paroxysm (n) 20:27, 26 January 2006 (UTC)

No Problem. I think I prefer the less elegant style (currently in my sandbox). It's less visually appealing, but puts image wikitext in the section where the picture actually appears. However, I leave the final decision to the collective. --TheLimbicOne(talk) 00:26, 29 January 2006 (UTC)

I removed {{ImageStackRight}}. It is meant for uses where there is a group of images that are logically connected, such as in Nelson hold. In this article, the images should be distributed to match certain parts of the text.i think that this is the best part of wikipedia 'EDITING'!!!! ~MDD 46 96 22:46, 7 April 2006 (UTC)

Location

Where do jellyfish live? --Wack'd About Wiki 14:36, 3 March 2006 (UTC)

Come on, somebody answer me! --Wack'd About Wiki 14:38, 6 March 2006 (UTC)

They live in the ocean, around the world. In northern and southern temperate areas, they can bloom during the summer. This means there are thousands and thousands of jelly fish (they're not fish at all) in one space. They bloom because the right conditions of food and water temperature allow them to grow and reproduce very quickly.Nozano 03:35, 27 April 2006 (UTC)

Is there a size limit for jellyfish?

I was watching "Newton's Apple" on PBS and they did a show on jellyfish. It was stated the more they eat, the bigger they get, however, if they don't get enough to eat they shrink. Has anyone tried feeding a jellyfish more and more food to see what the maximum size is? I am sure the mimimum size would be fatal to the jellyfish. It is not stated in the article what the maximum size limit is for the jellyfish, or the maximum length the tentacles can reach.24.195.52.131 17:47, 14 May 2006 (UTC)Bennett Turk

I think there is but I cannot verify this yet. --S iva1979^{Talk to me} 17:26, 18 May 2006 (UTC)

It is according to species. When they grow to a size (different from species to species, or from location to location), they grow more slowly and become mature, release sperm or eggs, then deteriorate and shrink. Therefore, there is limit to size and their diameter can hardly reach 1 m. --Isorhiza 05:42, 26 June 2006 (UTC)

It would be nice if some kind of size information was listed in the main article. There are urban legends of huge jellyfish 30 feet long. Daniel.Cardenas 20:31, 21 September 2006 (UTC)

Here is a link that states that an Arctic Lion's Mane Jellyfish was found washed ashore; it was measured and the 'bell' was 7 feet across and the tentacles were over 120 feet long. That's the largest one on record. The jellyfish article in the Guiness World Records confirms this measurement . [1]204.80.61.10 14:07, 11 October 2006 (UTC)Bennett Turk

She sells Jellyfish by the sea jelly

I thought the preferred term these days is sea jelly, since jellies are cnidarians and not fish.

I note that the term and article name sea star is used on that article (instead of starfish). That article does wander back and forth,. ~~but a paragraph does say, "As these creatures are echinoderms and not actually fish, most marine biologists prefer to replace the term starfish with the less misleading term sea star."~~ Jjinfoothills 01:09, 27 May 2006 (UTC)

Treatment of Stings

I was told an anecdote by my mother who basically stated that one of her sisters was 'attacked' by a jellyfish. My question is the supposed use of treatment -- her father poured coca-cola on the wound. Does the carbonated water neutralise the venom? It seems like it wouldn't because the article states that water is not a good liquid for this purpose. 32.97.110.142 19:53, 6 June 2006 (UTC)Piepants

I remember hearing that urine is acidic enough to deactivate nematocysts, and can be used instead of acetic acid in an emergency situation. I don't know if this is an urban legend or not -- can anyone confirm? User:Jmayer 13 June 2006

The article says that alcohol should not be used. However, it is recommended that alcohol be used (any alcoholic drink) in first aid manuals. The alcohol kills off nematocysts and thus prevents them from releasing venom. The full treatment recommended: Pour alcohol (any alcoholic drink will do) or household vinegar over the injury for a few minutes to incapacitate stinging cells that have not yet fired. Apply a paste of equal parts of sodium bicarbonate (baking soda) and water to the wound. Dust a dry powder over the skin around the injury to make remaining cells stick together. Talcum powder will suffice - better still is meat tenderiser, used in barbecue cooking; papain, one of its ingredients, can inactivate venom. 217.145.8.170 09:38, 25 June 2006 (UTC)

The emedicine.com link says that ammonia can be used as well.

This part of the article seems internally inconsistent: "...fresh water should never be used. Rinsing the sting site with fresh water, rubbing the wound, or using alcohol, spirits, ammonia, or urine will encourage the release of venom." Or does it mean that these things will encourage th release of venom _into the body_?

Bicarbonate

This article recommonds bicarbonate, while the Box jellyfish article says it is a crock.I don't know which is right, but the two articles surely should agree. -- cmh 04:19, 26 July 2006 (UTC)

Nematocyst persistence

I was stung recently by a small jellyfish in the sea off southern France. Initially painful, the discomfort seemed to subside after only an hour or two. The following day however either the nematocysts had continued to discharge venom or an allergic reaction had occurred as the affected area was covered in what looked like dozens of insect bites. Does anyone know how long the nematocysts continue to inject venom?

Predators

What can eat jelly fish besides humans? I imagine most fish can not eat them. Seals mostly the reason they die is that they mistake plastic bags for jellyfish66.171.76.210 23:39, 21 August 2006 (UTC)

Yes, this would be great to know. I've heard that not only seals, but sunfish (see wikipedia) and loggerhead turtles (also wikipedia) eat jellyfish. But it would be nice to have a more exhaustive list of both predator and prey, and what's needed to maintain a healthy balance in our oceans, (i.e. bans on fishing certain predators? reducing carbon?)

I've read that in eras when the sea became more acid (as it is beginning to do today), much sea life became extinct, leaving huge masses of jellies and bacteria. The bacteria released enormous amounts of poisonous hydrogen sulfide gas, which blew inland and proceeded to cause mass extinctions on the land as well. Without being alarmist, we're seeing huge blooms of jellies in the Mediterranean now, and at least twice some of these normally Mediterranean jellies have been credited with destroying farmed salmon cages as far north as the Irish Sea? Is this a function of concentrating the fish in a confined area? Or is the sea somehow becoming more hospitable to jellies at the expense of other sea life? Are jelly blooms–like canaries nodding off in a coal mine–evidence that something is going wrong?

Apart from these concerns, isn't it curious that while jellyfish can poison some animals–including us–while others can EAT them without harm? Is there some special lining that protects their skin and digestive tract? Or do they have some sort of immunity to the venom? Or perhaps a chemical that neutralizes the venom? Seems like understanding that might have some medical application? Not just to protect swimmers–but maybe to use the venom? —Preceding unsigned comment added by 67.42.176.195 (talk) 18:42, 8 March 2008 (UTC)

Class Scyphozoa

I'm confused by the reference to Flower hat jelly fish which are Anthozoans. I realize that they are both referred to as jellies, but this article is the article for Class Hydrozoa Thanks Avigon 20:35, 25 September 2006 (UTC)

Flower hat jelly is not Anthozoan, but Hydrozoa, Limnomedusae. This article is not for Class Hydrozoa, but for Class Scyphozoa, but partly includes information for other jellies eg. Class Hydrozoa including siphonophore, Class Cubozoa. Needs to split the article into Jellyfish and Scyphozoa. --Isorhiza 05:33, 23 November 2006 (UTC)

Recent edits

I saw some recent action on this article which I must disagree with. It concerned comments regarding the use of urine as a anti-venom measure. I believe the poster's comments were unfairly removed. The poster was also put in a position by 2 registered users where he/she could not get his point across. Finally, the 3RR rule should be used appropriately. —The preceding unsigned comment was added by 219.73.32.176 (talk • contribs) .

Referring to the use of urine is fine if a reliable source can be provided. The particular edit you made (stop preteneding you are someone different just because you have a dynamic IP) was inappropriate. You were asked several times to discuss your edit, but refused and continued to edit war. This is exactly the situation that we have the WP:3RR rule for and it was entirely appropriately used. Gwernol 14:32, 4 October 2006 (UTC)

Continue to make such allegations. It is no skin off my nose.

I do however agree with your view on the use of reliable sources. Hence, I have taken the liberty of removing all unsourced/unreliable content from the article. I will task myself from doing the same from all article I come across from now on. THanks for the tip.

THERE SEEMS to be some contradictions amongst the registered (supposedly more experienced) users of Wikipedia. You have some that say unsourced material should not be used in articles. They action this by actively removing such content. Then you have the likes of BoyRoy or BoyToy adding back unreliable/unsourced content previously removed by a anon user who thought he/she was improving the article. Get your house in order. At least the anons are singing from the same hymn sheet. —The preceding unsigned comment was added by 219.73.32.176 (talk • contribs) .

This anon has been blocked, further removals from this article should result in an immediate, and lengthy block. - Roy Boy ⁸⁰⁰ 16:07, 4 October 2006 (UTC)

Deep Sea Jellyfish?

I was watching "Blue Planet"(Deep Sea episode) today, and they showed Jellyfish which was red and moved via rainbow glowing cilia. I can't seem to find any information on this, and I didn't catch the name of it. Any help?

I was watching the episode as well. Great show. I have it saved on my TiVo. I'll check it out in the morning and report the name then. Phauge 04:26, 6 October 2006 (UTC)

Unfortunatly, the narrator, Richard Attenborough, does not name the species you are talking about. He only refers to it as a "deep sea jelly." They are red because of the fact that normally red light does not penetrate that deep, so red animals appear to be completely black to predators. The cilia appear to be rainbow colored because of the lights from the submarine filming it. I hope this helps. Phauge 16:41, 6 October 2006 (UTC)

ctenophore (undescribed species) --Isorhiza 04:30, 15 November 2006 (UTC)

Jellyfish Map

Is there anywhere where one can obtain a jellyfish ´map´, as it were, in specific for Menorca in the Meditteranean? To see which beaches or coasts are best for avoiding the beasts. 213.250.154.88 19:05, 23 October 2006 (UTC)

It's very difficult, because they live offshore and sometimes strand to beach by flow caused by prevailing wind. Their distribution changes continuously and there is no (I believe) monitoring program to forecast/observe their small/large-scale distribution daily/weekly. Maybe Bill Gates can pay for such a program. --Isorhiza 04:36, 15 November 2006 (UTC)

Inconsistency of information regarding treatment

In one sentence, it states that the sting should never be treated with fresh water. In the next, it cites fresh water as a suitable agent for treating the sting. Which is correct?

The reason why fresh water should be avoided is that when tentacle or stinging cell apparatus (nematocyst) remain attached on the skin, liquid with different osmotic pressure can cause further stinging by disturbing nematocysts. Once the skin is clean, you can safely use freshwater to cool down and clean the injured skin. However, what is most important is to remove tentacles and remain of nematocysts as soon as possible to avoid further stinging. So, first, you should remove visible remain of tentacles by forcep or something gently. Then use enough amount of water to clean the skin. When tentacle dry out, it becomes difficult to remove from the skin. So fresh water may help. --Isorhiza 04:52, 15 November 2006 (UTC)

Inconsistencies/Errors

Just to notify you all of some inconsistencies I found.

1. The jellyfish article mentions the green fluorescent protein and the species Aequorea victoria as a species of jellyfish. Note that the Scyphozoa links to the jellyfish page, implying that jellyfish means Scyphozoa. However, according to the page on Aequorea victoria, this animal is a species of Hydrozoa. Are Hydrozoa considered jellyfish? If so, then this is inconsistent with the link on the bottom of the page to "Physalia physalis. Portuguese Man O'War, (not a true jellyfish)."

If anyone out there knows for sure which is correct, please make the appropriate changes.

2. On the bottom, on the list of links, the Irukandji jellyfish is followed by the phrase "(the most deadly jellyfish known to man)." If this is matter of opinion, then so be it. However, the largest of the box jellyfish, Chironex fleckeri, has caused most of the 63 deaths due to box jellyfish, and the Irukandji jellyfish, Carukia barnesi, has only caused two known deaths. So, in my opinion, Chironex fleckeri is the most dangerous of all jellyfish.Beezer137 21:17, 17 January 2007 (UTC)Beezer137

3. Although there are many webpages that list collective nouns for animals and include "smack" (as well as an equally obscure "fluther"), this term is not in the abridged Merriam-Webster Dictionary or the Unabridged Oxford English Dictionary. This would seem to make it, at best, a colloquialism.

Not a fish

It would really be appreciated if the author could change the title of the article to "Sea jelly," and redirect all "jellyfish" searches to it. The sea jelly is NOT a fish. It has no characteristics that make it anything like a fish. For one thing, fish are vertebrates, meaning they have bones. Sea jellies do not have bones. Fish have brains, sea jellies do not. Fish have hearts, sea jellies do not. I realize this may take to time to edit, but I'm just trying to make Wikipedia more factual. Thanks! Semajws 16:17, 30 March 2007 (UTC)

While I certainly support what you propose, I don't think this is in the scope of Wikipedia's mission. Jellyfish may not be fish, but that is the name most English speakers have assigned to the animal, and as such I think we should stick with it. A precedent we might follow is that of the Red Panda which, while not really a panda, is still called such on Wikipedia because that is the commonly accepted name. Chrysaora 06:28, 2 April 2007 (UTC)

Edible

Shouldn't there be extra information on this? Izaak 13:22, 21 April 2007 (UTC)

The phrase "the rhizostomes produce a product that has the desirable, almost crunchy texture" is unsourced and appears to be the POV of the author. 68.165.233.211 20:22, 12 September 2007 (UTC)

Based on the page history, food uses probably belong on a separate Jellyfish-Culinary page. 68.165.233.211 21:48, 12 September 2007 (UTC)

Imperial Probe Droid?

This seems to me, considering the probes have a definite sense of direction and ability to transmit back to a central ship, more akin to the von neumann probe than a jelly. Alex2579 04:00, 26 July 2007 (UTC)

Can jellyfish live out of water?

A child and her mom were telling me how they had just been to Seattle Wash. and seen jellyfish on the beach. The daughter had had a "wonderful" time throwing the jellyfish up against a stone wall and greatly enjoyed the sound they made hitting the wall. (!) I was taken aback. I had always assumed that the jellyfish were either alive and waiting for the tide to come in again, or they were slowly dying. In either case I have always told my kids to be careful not to step on them thinking that they were probably alive.

Does anyone know if jellyfish can live out of water? Are they alive and waiting for the tide? …. Or am I about to learn about another cruel fact about Mother Nature…. —Preceding unsigned comment added by Keralahub (talk • contribs) 14:58, 10 October 2007 (UTC)

They could've been dead or alive, but either way the nematocysts would continue to sting if touched, so a dead jellyfish is just as painful as a living one. That said, not every jellyfish is painful.. and if you pick it up by the bell you're probably okay.

lk;adfa —Preceding unsigned comment added by 216.74.224.170 (talk) 18:48, 7 February 2008 (UTC)

Invasion

Hi. On a National Geographic episode I heard about the jellyfish invasion and a species called "Nemoura" or something like that, but I don't know the spelling. They are giant jellyfish off the coast of Japan. Apparently they inhabit a dead zone from the east coast of China to Korea to Japan, indicating that human pollution and global warming may be causing them to multiply. Anyway, it said that they are appearing by the tens of billions, and that slautering them is causing millions of more to be produced because the attacked Nemoura are releasing millions of eggs and sperm which attatch themselves to the sea floor and reproduce asexually. Apparently they stay dormant but suddenly release swarms of billions of jellyfish whenever salinity, pressure, temperature, etc in the ocean changes a tiny amount (such as when temperature rises or drops a fraction of a degree). Where is the article? Can someone point out the article to me? Thanks. ~A H 1^(TCU) 15:55, 10 February 2008 (UTC)

I watched this too. And some of what this documentary said, disagrees with what's in this article. They said that this particular species of jellyfish had propper eyes and four brains. They showed it reacting to various things placed in a fishtank with it, and it swam towards, away or around the various obsticles depending on what colour they were. -OOPSIE- (talk) 15:46, 13 February 2008 (UTC)

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