The Arctic cyanide is the largest jellyfish in the world. Arctic jellyfish - the largest jellyfish in the world
Arctic Cyanea ( Cyanea capillata) is the largest jellyfish in the world. Its giant dome can reach a diameter of 2 meters, and thin translucent tentacles grow up to 20 meters in length.
The body of the cyanide can have a wide variety of colors, but brown and red individuals are usually found. Adult jellyfish top of the dome may be yellow, and its edging is red. The mouth lobes, as a rule, are painted in bright crimson tones, which signals danger to other animals. The younger the jellyfish, the brighter its color.
Arctic Cyanea grows and develops according to the life cycle of all jellyfish. Her life is divided into two main stages: medusoid and polypoid. From birth, the jellyfish is a larva that swims freely in the water for several days. Then it attaches to the substrate and becomes a polyp. In this state, the jellyfish actively feeds and rapidly increases in size. After some time, transparent stars bud from the polyp - larvae, which in the future will transform into jellyfish.
The halos of the habitat of these jellyfish cover all the northern seas of the Pacific and Atlantic oceans, where they freely and leisurely swim near the surface of the water. They move very effectively, making rare strokes of the edge blades and reducing the dome.
Do not forget that these huge jellyfish are predators, so their long tentacles are always ready to attack and hunt. They form a dense network right under the dome of the jellyfish and secrete the strongest poison, which instantly kills small prey, and paralyzes large animals. Almost all types of marine animals become the object of cyanide hunting: from plankton to fish and other jellyfish.
For a person, a meeting with Arctic cyanide will not bring serious trouble. People who are prone to allergies or those with sensitive skin will develop a slight rash, while those who are stronger will not notice any discomfort at all.
The jellyfish reproduces as follows: males throw spermatozoa into the water through their mouths, which penetrate into special cavities inside the female's mouth. The embryos of future jellyfish are formed there, where they remain until they reach the age of entry into open water. Once outside, the larvae begin the medusoid stage of their lives.
Arctic cyanide prefer to live in the upper layers of the water and rarely sink to the very bottom. By their nature, they are active predators, which feed mainly on plankton, small fish and crustaceans. With a lack of these animals, cyanide is taken to eat its relatives - jellyfish different types, including members of their own species. During the hunt, the cyanide rises almost to the surface of the water and spreads its long tentacles to the sides. In this position, the jellyfish looks more like a cluster of algae. When the victim swims between the tentacles and accidentally touches them, cyanide wraps around the body of the prey and paralyzes with poison, which is produced in numerous stinging cells located along the entire length of the tentacles. As soon as the victim stops moving, the cyanide pushes it towards the mouth opening with tentacles, and then with oral lobes.
The Arctic cyanide, or Cyanea capillata, has become a popular variety, appearing in literary works, especially in "The Adventures of the Lion's Mane" about Sherlock Holmes. However, arctic cyanide is actually not as dangerous as it is portrayed in popular culture. The sting of this jellyfish is simply incapable of causing deaths in humans. Although the rash can be painful for sensitive people, and the toxins in the venom can cause an allergic reaction.
One specimen of the Arctic Cyanea, which was found in Massachusetts Bay in 1870, was over 7 feet in diameter and had tentacles longer than 120 feet. However, the bell of the Arctic Cyanea is known to be able to grow up to 8 feet in diameter, and its tentacles can be 150 feet long. This creature is much longer than the blue whale, which is generally thought to be the largest animal in the world. This species of jellyfish is very variable in size. While the largest individuals are found in the northernmost waters of the Northern Arctic Ocean, the size of the jellyfish decreases when you travel south. The color of this species of jellyfish also depends on its size.
The largest specimens of jellyfish were dark red. As the size decreases, the color becomes lighter until it becomes light orange or Brown. The medusa bell is divided into eight petals. Each petal has a cluster of 60 to 130 tentacles on the edge of her jelly body. The Arctic cyanide also has many oral lobes near the mouth to facilitate transport of food to the jellyfish's mouth. Like most jellyfish, the Arctic Cyanea is carnivorous and feeds on zooplankton, small fish, and ctenophores, and is also cannibalistic, feeding on other jellyfish. Predators that pose a danger to this jellyfish are sea birds, big fish, other varieties of jellyfish and sea turtles.
I think, after reading the details, you realized that the photo above or the photo, for example, the photo at the beginning of the post is still just a convenient angle (or photoshop) and of course there are no such huge jellyfish.
source Jacob delafon
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The sea world is full of amazing creatures, many of which people are not even familiar with yet. The organisms that live here sometimes go beyond the accepted idea of \u200b\u200byour existence - the whole point is that their habitat is fundamentally different from ours: it is water.
Therefore, everything is different here: the way of breathing, the shape of the body, the manner of movement and nutrition, hunting, defense, etc. Considering the category the most big jellyfish , in the first place here you can put giant arctic jellyfish, otherwise called cyanide (Cyanea). See the link for more details. This unusual creature lives in the northwestern Atlantic.
The jellyfish belongs to one of the most interesting marine animals. In water, it resembles a huge mushroom, in which a whole bunch of long tentacles grows instead of a leg. This organism does not have an internal and external skeleton, however, due to the fact that it is constantly in the water, it retains a rounded shape. Anyone moves, including the largest jellyfish in the world, in a reactive way due to the contraction of the muscles that supply the walls of her body, or bells. Interestingly, the jellyfish has two nervous systems. One is responsible for the information received from the eyes, and the second is responsible for the synchronization of muscle cells, which are located along the perimeter of the body. The eye of a jellyfish is no less than twenty-four, but the brain is completely absent.
The leader in size is the Arctic jellyfish - сyanea arctica, cyanea capillata or simply cyanoea. This species lives only in the Pacific and Arctic oceans. The body size of this animal depends on both its age and water temperature. Cyanea is a lover of cold waters, so the most major representatives of this species are found there. Some scientists believe that these organisms live in warm seas- Chernoy, Azov and others.
If you are interested in the record size of other inhabitants of the ocean, about the huge Blue whales, whose population in the world is extremely small. In addition, you can look at predatory giants sea depths- which can easily swallow a person in full growth.
The record holder who became known to people, was such a jellyfish, washed ashore in the Massachusetts region. The diameter of her body-dome was 2.28 meters, and the length of the tentacles reached 36.5 meters. On the average the largest jellyfish in the world has a size of up to two meters and filiform tentacles of 20-30 meters. Cyanea feeds on well-aimed fish: in a lifetime, it can eat up to 15 thousand fish. This creature is incredibly beautiful. Her body is in front dark color, and is covered with large brown or reddish spots: the older the jellyfish, the darker the color of its body, respectively, the smaller the individual, the lighter the color becomes. Juveniles are usually light orange with brown tints.
The entire body of the arctic cyanide is divided into eight petals, each of which, in turn, has a group of tentacles - from 60 to 130 pieces each: they are painted pink or purple colors located along the perimeter of the round body. Each such tentacle is a weapon with which the largest jellyfish kills the victim before eating it: it is equipped with stinging cells that contain poison. In addition to small fish, cyanide feed on plankton and ktenophores; there are cases of cannibalism, i.e. eating their own relatives. These jellyfish hunt in groups of ten individuals, forming a giant net with their tentacles, where many invertebrates and fish fall.
For humans, the cyanide burn is not fatal, but rather painful: the pain from the burn lasts about six to eight hours, allergies can begin. In spite of big sizes jellyfish, she has enemies: these are sea turtles, birds and larger predatory fish. Cyaneas reproduce by budding polyps: first, the larvae swim freely in the water, and then attach to hard surfaces.
As already reported, the largest jellyfish in the world was found on the shore North America where it was thrown by tidal waves. This happened back in 1870. The length of the find was the same as that of blue whale, i.e. about thirty-six meters. For comparison, a 12-story building approximately has such a length (more precisely, height). The diameter of the dome of the found cyanide was equal to two and a half meters. A person next to such a giant looks very small.
Of great importance in the size of the jellyfish is its color - the larger, the darker. The smallest cyanides are painted, as a rule, in light Orange color. This species has a lot of tentacles, which are collected in bunches of eight groups - in each of them there are up to 150 of these long processes, like threads.
It is with the help of tentacles that cyanide hunts, like other jellyfish: they contain stinging cells, from which poison is released at the right time. Cyanees prefer to hunt in groups of ten, so their filamentous tentacles form a gigantic net that it is impossible to slip through unscathed. Fish, plankton, and others come across here. Marine life. For many, the poison is fatal; cyanide feeds on the smallest prey.
For a person, despite its size, cyanide is not dangerous, but can only cause light burns that disappear after six hours. Those who are especially sensitive may develop an allergy.
However, cyanide is not the only record holder in size - a creature called nomura, or Nemopilema nomurai. As for cyanide, today it is quite difficult to find photographs on the net that would show a person next to her, except when she was thrown ashore. The fact is that the long tentacles of this marine organism, similar to nets, can easily hurt a scuba diver, which, as already mentioned, will inevitably lead to a painful burn. Remembering the size of these tentacles, it is easy to guess that it is almost impossible to get close to this monster. Therefore, most often photographed are small individuals that do not pose much harm to people.
Nomura belongs to the species known as the Scyphoid and the Cornerote order, or Rhizostomeae. Large individuals are inferior to cyanideans in the length of tentacles, but they are worthy of competition in terms of the size of the dome - it reaches two meters in diameter. General form of this wonderful creature looks like a giant mushroom, next to which a person looks much smaller. The weight of the nomura is about two hundred kilograms, sometimes more. These jellyfish live in the seas located between Japan and China - these are the Yellow and East China Seas.
Starting in 2005, Nemopilema nomurai is a kind of "plague" of these places, in particular, the Sea of Japan. The fact is that the unintentional attacks of these wonderful creatures greatly disrupt the entire work of the fishing industry in the Japanese regions. For example, there was a case when a fishing trawler from Japan weighing ten tons was sunk by these giant jellyfish. The ship was named "Diasan Shinsho-Maru" and it sank near a city on the island of Honshu known as Chiba. The crew of the vessel, consisting of three people, unsuccessfully tried to raise the net, which was filled to the brim with a myriad of these jellyfish.
This incident was reported in the local newspaper Mainichi: as soon as the trawler began to sink, its entire crew jumped overboard, only to be rescued by another vessel. The accident happened, in fact, in broad daylight - weather were perfect, the sun was shining. Since that time, thanks to the well-established good weather, coastal waters constantly exposed to the invasion of nomura, each of which weighs about two hundred kilograms. Filling the fishing nets, jellyfish at the same time spoil the fish, making it inedible to their own. venomous bites. And, of course, fishermen also have accidents with burns.
Exclusively for the Neo-Imaginarium,
Mila Shurok
The underwater world of the seas and oceans is full of secrets and mysteries, and scientists have not yet been able to study it to the end. And many of those creatures that are known are very unusual and amazing. Jellyfish are just one of them.
Huge cyanoea
The greatest interest of scientists is caused by jellyfish of large, or rather, huge sizes. And there are several types of such creatures in the seas. However, the largest of them are cyanes ("arctic jellyfish"). You can meet this not quite ordinary jellyfish in the northwestern Atlantic.
Its translucent gelatinous body, which contains at least 90 percent of the liquid and completely lacks a skeleton or shell, is of enormous size. The largest jellyfish keeps its shape thanks to water, and it is very similar to a mushroom. She has a huge "hat", and numerous tentacles act as legs. The color of cyanide is quite dark, there are spots of various reddish or brown shades. The color intensity directly depends on how old she is. The older this creature, the richer the colors on its body will be. Very young individuals have a light orange color. In this type of jellyfish, it is hardly possible to find at least a gram of the brain, but it has a lot of eyes - 24 pieces.
The body of this giant among jellyfish is divided into 8 lobes. At least 60, or even 2 times more tentacles depart from each such lobe. These tentacles have a huge number of stinging cells that contain poison.
This is an ideal weapon for catching medium-sized fish and small invertebrates on which they feed. Throughout its life, the largest jellyfish in the world can eat at least 15,000 fish.
Scientists have found that cyanide hunt in groups of up to 10 individuals. These "hunters" create some kind of nets from their tentacles, into which, with success, enough a large number of mining.
Among this type of jellyfish there is cannibalism. In times of famine, individuals can eat each other. Cyanea cannot kill a person. She only has the ability to leave a burn on her body, which can cause a very painful allergic reaction.
As a rule, six or eight hours after the burn, the pain subsides significantly or disappears altogether. The largest representative of this species of jellyfish was first found and measured at the end of the 19th century. She somehow ended up on land, where she died.
The length of the remains of this creature, together with the tentacles, was almost 36 meters. To understand how much this is, imagine skyscraper, which has at least 12 floors. And its dome was larger than 2.2 m. People had a chance to see such a huge jellyfish.
However, cyanide is not the only giant among jellyfish. The nomura is also quite large. Although this species does not have such long tentacles, its “hat” is simply huge! On average, its diameter is two meters. But this is on average. There are individuals that have large sizes - up to 3.5 meters. A person next to this jellyfish looks very small. Does it weigh unusual creature an average of 200 kilograms. They thrive in the East China and Yellow Seas. There are facts indicating that these creatures began to intensively multiply and migrate, which is why they can be found in other seas. Scientists call the reason for this phenomenon global warming. Japanese, Chinese, residents South Korea- lovers of exotic foods - eat these creatures, preparing gourmet dishes from them.
A few years ago, nomurs began to deliver local residents a lot of inconvenience. The fact is that due to favorable natural and climatic conditions in these places, jellyfish began to multiply at a tremendous speed. And now the exits of fishermen to the sea is a real test of strength. After all, not only do these creatures spoil the fish, introducing poison into it with the help of their tentacles, they also make it difficult fishing cramming into the net.
Thus, there is a known case when the data sea giants caused the whole fishing boat to sink. This trawler was called DiasanShinsho-Maru, and it was sunk while in close proximity to one of the Japanese islands, which is called Honshu. Three fishermen, having taken out the nets, found that they contained countless numbers of these giants. Then people still tried to save their gear and began to get the net.
But the huge jellyfish did not like being taken out of their native element, and they began to resist. As a result, the fishing boat was pulled under the water. The sailors quickly got their bearings and jumped overboard. Fortunately, the entire team managed to survive. They were picked up by passing fishermen who witnessed this incident.
Top 10 large jellyfish
No. 10. Irukandji
Far from the largest jellyfish in the world. Its dome has a diameter of only ten centimeters, but the tentacles can reach a length of one meter. She is the most poisonous of all known jellyfish and prefers to live in the waters of Australia. Her burn is incredibly dangerous for people. Anyone who experiences it on himself may die if help is not provided in time. But the fact is that the poison of this jellyfish may not work immediately, but only after a few days.
No. 9. Pelagia
The dome of this creature has a diameter of 0.12 meters. Her tentacles are not very long, but this jellyfish has incredible beauty. The moment it comes into contact with something or someone, it glows with a soft light. Prefers to live in the waters Atlantic Ocean. It is also noteworthy that this creature immediately has 4 oral cavities. For humans, its poison is not too dangerous.
No. 8. Physplia (Portuguese boat)
This creature has a dome, a quarter meter (25 cm) in diameter. But its tentacles are about fifty meters long. Most often, the body of a jellyfish is painted blue, purple individuals can also be found. The "ship" floats almost on the surface, and its "tools" in the form of tentacles go deep under the water. The poison is very dangerous for humans, a burn can lead to lethal outcome.
No. 7. Aurelia
The tentacles of this jellyfish are not too long, but there are a lot of them, and the dome in diameter is basically 0.4 meters. It is also often referred to as the "Eared" jellyfish. The thing is that her mouth cavities (of which there are four pieces) look like hanging ears. The poison is not dangerous for humans and can cause only a small burn.
No. 6. Australian sea wasp
This large jellyfish has a dome that reaches almost half a meter (45 cm) in diameter, but its tentacles are much longer and can exceed three meters. This creature has no color, its body is almost completely transparent, like all 60 tentacles. But his poison is incredibly strong. It can induce cardiac arrest in a swimmer in minutes.
No. 5. Cornerot
This type of jellyfish has a dome with a diameter of 0.6 meters. It's pretty big creature which can weigh up to 10 kg. Lives in the Mediterranean and Black Seas and is not at all dangerous to humans. It is noteworthy that this jellyfish is used for the manufacture of medicines, as well as for the preparation of various dishes.
No. 4. Purple striped jellyfish
The diameter of its "top" often reaches 0.7 meters. This creature is still poorly understood. It is only known that it lives in Montarey Bay and has a bright purple. His "bite" for people is not too dangerous, but a rather significant burn can remain.
No. 3. Sea nettle (Chrysaora)
The diameter of her body is one meter. There are a large number of tentacles, and their length is four meters. It lives in the Pacific Ocean, often this jellyfish is grown in aquariums. The burn is not dangerous for a person. It is noteworthy that the detached tentacle does not die for a long time and can even sting.
No. 2. Nomura Bell
We have already talked about this jellyfish above.
No. 1. Hairy cyanoea
The largest jellyfish in the world. We talked about her first.
These are the largest jellyfish that live in the waters of the oceans. All of them are beautiful and unusual in their own way, and if a long tentacle reaches a person and still stings, then not intentionally, but by accident.
But not everyone knows that there are creatures that exceed it in size - this is an ocean inhabitant jellyfish cyanoea.
Description and appearance of cyanide
arctic cyanoea belongs to the species of scyphoid, detachment of disk jellyfish. Cyanea means blue hair in Latin. They are divided into two types: Japanese and blue cyanide.
It is the largest in the world cyanide simply giant. On average, the size of a cyanide bell is 30-80 cm. But the largest recorded specimens were 2.3 meters in dome diameter and 36.5 meters in length. The huge body is 94% water.
The color of this jellyfish depends on its age - the older the animal, the more colorful and brighter the dome and tentacles. Young specimens are mostly yellow and orange in color, with age they turn red, turn brown, purple hues appear. In adult jellyfish, the dome turns yellow in the middle, and reddens along the edges. The tentacles also become different colors.
Pictured is a giant cyanide
The bell is divided into segments, there are 8 in total. The shape of the body is hemispherical. The segments are separated by visually beautiful cutouts, at the base of which are the organs of vision and balance, smell and light receptors hidden in ropalia (marginal bodies).
The tentacles are collected in eight bundles, each of which consists of 60-130 long processes. Each tentacle is equipped with nematocysts. In total, there are about one and a half thousand tentacles that form such a thick “hair” that cyanide called " hairy"or" lion's mane. If you look at photo of cyanide, it is not difficult to see a clear similarity.
In the middle of the dome there is a mouth, around which red-crimson oral lobes hang down. Digestive system implies the presence of radial channels that branch from the stomach to the marginal and oral parts of the dome.
In the photo, the Arctic jellyfish cyanide
Concerning danger cyanide For a human being, there is nothing to worry about. This beauty can only sting you, no stronger than a nettle. There can be no question of any deaths, maximum burns will provoke an allergic reaction. Although, large areas contact will still lead to strong discomfort.
cyanoea habitat
Medusa cyanide lives only in the cold waters of the Atlantic, Arctic and Pacific oceans. Found in the Baltic and North Seas. Many jellyfish live on east coast Great Britain.
large clusters observed off the coast of Norway. Warm Black and Sea of Azov it does not suit her, like all waters southern hemisphere. They live at least 42⁰ north latitude.
Moreover, the harsh climate only benefits these jellyfish - the largest individuals live in the coldest waters. This animal is also found off the coast of Australia, sometimes it falls into temperate latitudes, but it does not take root there and grows no more than 0.5 meters in diameter.
Jellyfish rarely swim ashore. They live in the water column, swimming there at a depth of about 20 meters, surrendering to the will of the current and lazily moving their tentacles. Such a large mass of tangled, slightly burning tentacles becomes a home for small fish and invertebrates that accompany the jellyfish, finding protection and food under its dome.
Cyanea lifestyle
As befits a jellyfish, cyanoea does not differ in sudden movements - it simply floats with the flow, occasionally reducing the dome and waving its tentacles. Despite such passive behavior, cyanide is quite fast for jellyfish - it is able to swim several kilometers in an hour. Most often, this jellyfish can be seen drifting on the surface of the water with straightened tentacles, which form a whole network for catching prey.
Predatory animals themselves, in turn, are objects of hunting. Birds feed on them big fish, jellyfish and sea turtles. Cyanea during the medusoid cycle lives in the water column, and when it was still a polyp, it lives at the bottom, attached to the bottom substrate.
cyanide also called and blue-green algae. This is a very ancient group of aquatic and terrestrial organisms, which includes about 2000 species. They have nothing to do with jellyfish.
Nutrition
Cyanea refers to predators, and quite voracious. It feeds on zooplankton small fish, crustaceans, scallops, smaller jellyfish. In famine years long time go without food, but at such times often engages in cannibalism.
floating on the surface cyanoea looks like a bunch algae to which the fish swim. But as soon as the prey touches its tentacles, the jellyfish abruptly throws out a portion of the poison through the stinging cells, wraps around the prey and moves it towards the mouth.
The poison is released over the entire surface and length of the tentacle, the paralyzed victim becomes a dinner for the predator. But still, the basis of the diet is plankton, the diversity of which can boast of the cold waters of the oceans.
Often cyanoeas are going to hunt big companies. They spread their long tentacles on the water, thus forming a dense and large living network.
When a dozen adults are about to hunt, they control hundreds of meters of the water surface with their tentacles. It is difficult for prey to slip through these paralyzing nets unnoticed.
Reproduction and lifespan
generational change in life cycle cyanide allows it to multiply different ways: sexual and asexual. These animals of different sexes, males and females perform their functions in reproduction.
Heterogeneous individuals of cyanide differ in the contents of special gastric chambers - in males in these chambers, spermatozoa, in females, eggs. The males excrete external environment sperm through the oral cavity, while females have brood chambers in the oral lobes.
Sperm enters these chambers, fertilizes the eggs and occurs there. further development. The hatched planula swim out and swim in the water column for several days. Then they attach to the bottom and turn into a polyp.
This scyphistoma actively feeds, grows for several months. Later, such an organism can reproduce by budding. Child polyps are separated from the main one.
AT spring period polyps divide in half and from them esters are formed - the larvae of the jellyfish. “Kids” look like small eight-pointed stars without tentacles. Gradually, these babies grow and become real jellyfish.
The largest jellyfish in the world is the arctic cyanide, also known as the hairy or lion's mane cyanide (lat. Cyanea capillata, Cyanea arctica). The length of the tentacles of these jellyfish can reach 37 meters, and the diameter of the dome is up to 2.5 meters and is the longest animal on the planet.
Cyanos is translated from Latin as blue, and capillus is hair or capillary, i.e. literally - a blue-haired jellyfish. This is a representative of the scyphoid jellyfish of the disc jellyfish order. Cyanea exists in several forms. Their number is a matter of dispute between scientists, however, two more of its varieties are currently distinguished - blue (or blue) cyanide (suapea lamarckii) and Japanese cyanide (suapea capillata nozakii). These relatives of the giant "lion's mane" are significantly inferior to her in size.
Atlantic cyanoea, according to experts, can reach a diameter of up to 2.5 meters, in comparison with blue whale, which is a popular example when designating the longest animal, can reach 30 meters in length, with a weight of about 180 tons, then the giant cyanide's claim to be the longest animal on Earth is understandable.
Cyanea giant is a resident of cold and moderately cold waters. It is also found off the coast of Australia, but is most numerous in northern seas Atlantic and Pacific Ocean, as well as in open waters seas of the Arctic. It is here in northern latitudes, it reaches a record size. In warm seas, cyanide does not take root, and if it penetrates into softer climatic zones, it does not grow more than half a meter in diameter.
In 1865, on the coast of Massachusetts Bay (North Atlantic coast of the USA), the sea threw out a huge jellyfish, the dome diameter of which was 2.29 meters, and the length of the tentacles reached 37 meters. This is the largest of the giant cyanide specimens, the measurement of which is documented.
The body of the cyanide has a varied color, with a predominance of red and brown tones. In adult specimens, the upper part of the dome is yellowish, and its edges are red. The mouth lobes are crimson red, the marginal tentacles are light, pink and purple. Young individuals are colored much brighter.
Cyanides have many extremely sticky tentacles. All of them are grouped into 8 groups. Each group contains 65-150 tentacles inside, arranged in a row. The dome of the jellyfish is also divided into 8 parts, giving it the appearance of an eight-pointed star.
Jellyfish Cyanea capillata are both male and female. During fertilization, cyanide males release mature spermatozoa into the water through their mouths, from where they enter the brood chambers located in the females' oral lobes, where the eggs are fertilized and developed. Then planula larvae leave the brood chambers and swim in the water column for several days. Attached to the substrate, the larva transforms into a single polyp - scyphistoma, which actively feeds, increases in size and can multiply. asexually, budding off from itself child scyphist. In the spring, the process of transverse division of the scyphistoma begins - strobilation and the larvae of the jellyfish ethers are formed. They look like transparent stars with eight rays, they do not have marginal tentacles and mouth lobes. The ethers break away from the scyphistoma and swim away, and by the middle of summer they gradually turn into jellyfish.
Most of the time, cyanideas hover in the near-surface layer of water, periodically shortening the dome and flapping their edge blades. At the same time, the tentacles of the jellyfish are straightened and extended to their full length, forming a dense trapping net under the dome. Cyanees are predators. Long, numerous tentacles densely covered with stinging cells. When they are fired, a strong poison penetrates the victim's body, killing small animals and causing significant damage to larger ones. Cyanide prey - various planktonic organisms, including other jellyfish, sometimes small fish that stick to the tentacles also get caught.
Although the Arctic cyanide is poisonous to humans, its poison does not have such power to lead to death, although there has been one case of death from the poison of this jellyfish in the world. It can cause an allergic reaction and possibly a skin rash. And in the place where the tentacles of the jellyfish touch the skin, a person can get a burn and, subsequently, reddening of the skin, which disappears over time.