泰國普吉府向遊客發出警告，在當地海岸玩水的遊客需小心僧帽水母（Physalia physalis），來自於在此前工作人員在當地海岸附近發現大量擱淺的僧帽水母，是安達曼海岸首次出現該類型的水母。 (Physalis looks like a jellyfish but is actually a colony of organisms. tentacles that reach ten meters.)同時，還通知該地海岸的工作人員，如果發現有民眾或遊客被僧帽水母螫，千萬不要擦拭傷口，因為將致使毒素加速擴散，首期治療方法僅需用醋精塗抹傷口以消毒。
據悉，僧帽水母又稱「葡萄牙戰艦」，是一種管水母，以其漂浮习性和螫人极痛著称，是海洋里最致命的杀手。。雖然僧帽水母像水母，但其實是一個包含水螅體及水母體的群落。每一個體都高度的專門化，互相緊扣，而不能獨立生存。僧帽水母很少會被單獨發現，往往是因海流及風將多達數千隻的僧帽水母帶到同一海域。
僧帽水母的刺細胞令細小魚類及其他獵物癱瘓。就算是已死去的僧帽水母或脫落的觸鬚，在數小時內，仍可以造成同樣傷害。
會造成過敏反應及一連串的影響，如發熱、休克及干擾心臟和肺部功能，嚴重時更會致命，但極少會發生。
因此普吉旅遊管理部門提醒遊客，玩水需要注意水母，這種水母的毒性屬於神經毒，若遭螫傷的面積過大，伴隨出現呼吸困難現象，就一定要送醫急救，否則恐有生命之憂。
What is it? (Source National Geographic).jpg)
Anyone unfamiliar with the biology of the venomous Portuguese man-of-war would likely mistake it for a jellyfish. Not only is it not a jellyfish, it's not even an "it," but a "they." The Portuguese man-of-war is a siphonophore, an animal made up of a colony of organisms working together.
The man-of-war comprises four separate polyps. It gets its name from the uppermost polyp, a gas-filled bladder, or pneumatophore, which sits above the water and somewhat resembles an old warship at full sail. Man-of-wars are also known as bluebottles for the purple-blue color of their pneumatophores.
The tentacles are the man-of-war's second organism. These long, thin tendrils can extend 165 feet (50 meters) in length below the surface, although 30 feet (10 meters) is more the average. They are covered in venom-filled nematocysts used to paralyze and kill fish and other small creatures. For humans, a man-of-war sting is excruciatingly painful, but rarely deadly. But beware—even dead man-of-wars washed up on shore can deliver a sting.
Muscles in the tentacles draw prey up to a polyp containing the gastrozooids or digestive organisms. A fourth polyp contains the reproductive organisms.
Man-of-wars are found, sometimes in groups of 1,000 or more, floating in warm waters throughout the world's oceans. They have no independent means of propulsion and either drift on the currents or catch the wind with their pneumatophores. To avoid threats on the surface, they can deflate their air bags and briefly submerge.
How to treat a jellyfish sting? (Source: chemistry.about.com)
Act quickly and calmly to remove the tentacles, stop the stinging, and deactivate any toxin.
Here is where people get confused, because the best steps to take depend on what type of animal caused the sting. Here's a good basic strategy, especially if you don't know what caused the sting:
Anyone unfamiliar with the biology of the venomous Portuguese man-of-war would likely mistake it for a jellyfish. Not only is it not a jellyfish, it's not even an "it," but a "they." The Portuguese man-of-war is a siphonophore, an animal made up of a colony of organisms working together.
The man-of-war comprises four separate polyps. It gets its name from the uppermost polyp, a gas-filled bladder, or pneumatophore, which sits above the water and somewhat resembles an old warship at full sail. Man-of-wars are also known as bluebottles for the purple-blue color of their pneumatophores.
The tentacles are the man-of-war's second organism. These long, thin tendrils can extend 165 feet (50 meters) in length below the surface, although 30 feet (10 meters) is more the average. They are covered in venom-filled nematocysts used to paralyze and kill fish and other small creatures. For humans, a man-of-war sting is excruciatingly painful, but rarely deadly. But beware—even dead man-of-wars washed up on shore can deliver a sting.
Muscles in the tentacles draw prey up to a polyp containing the gastrozooids or digestive organisms. A fourth polyp contains the reproductive organisms.
Man-of-wars are found, sometimes in groups of 1,000 or more, floating in warm waters throughout the world's oceans. They have no independent means of propulsion and either drift on the currents or catch the wind with their pneumatophores. To avoid threats on the surface, they can deflate their air bags and briefly submerge.
How to treat a jellyfish sting? (Source: chemistry.about.com)
Act quickly and calmly to remove the tentacles, stop the stinging, and deactivate any toxin.
Here is where people get confused, because the best steps to take depend on what type of animal caused the sting. Here's a good basic strategy, especially if you don't know what caused the sting:
- Get out of the water. It's easier to deal with the sting and it takes drowning out of the equation.
- Rinse the affected area with sea water. Do not use fresh water! Fresh water will cause any stinging cells that haven't fired (called nematocysts) to do so and release their venom, possibly worsening the situation. Do not rub sand on the area (same reason).
- If you see any tentacles, carefully lift them off the skin and remove them with a stick, shell, credit card, or towel (just not your bare hand). They will stick to swimwear, so use caution touching clothing.
- Keep an eye on the victim. If you see any signs of an allergic reaction, call 911 immediately. Symptoms could include difficulty breathing, nausea, or dizziness. Some redness and swelling is normal, but if it spreads outward from the sting or if you see hives on other parts of the body, that could indicate an allergic response. If you suspect a reaction, do not hesitate to seek medical attention!
- Now... if you are sure the sting is from a jellyfish and not a Portuguese Man of War (shown below, the Man of War is not a true jellyfish) or any other animal, you can use chemistry to your advantage to inactivate the toxin, which is a protein. (Technically the venom tends to be a mixture of polypeptides and proteins including catecholamines, histamine, hyaluronidase, fibrolysins, kinins, phospholipases, and assorted toxins). How do you inactivate proteins? You can change the temperature or acidity by applying heat or an acid or base, such as vinegar or baking soda or diluted ammonia, or even an enzyme, such as the papain found in papaya and meat tenderizer. However, chemicals may cause the stinging cells to fire, which is bad news for someone allergic to jellyfish toxin or anyone stung by a Portuguese Man of War. If you do not know what caused the sting or if you suspect it is from a Man of War, do not apply fresh water or any chemical. Your best course of action is to apply heat to the affected area, since it penetrates the skin and inactivates the toxin without causing more venom to be injected. Also, heat quickly helps alleviate the pain of the sting. Hot seawater is great, but if you don't have that handy, use any warmed object.
- Some people carry aloe vera gel, Benadryl cream, or hydrocortisone cream. I'm not sure how effective the aloe is, but Benadryl is an antihistamine, which may help limit an allergic response to the sting. Hydrocortisone can help reduce inflammation. If you seek medical attention and used Benadryl or hydrocortisone, be sure to alert the medical professionals. Acetaminophen, aspirin, or ibuprofen commonly are used to relieve pain.
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Suruhanjaya Komunikasi dan Multimedia Malaysia (SKMM) telah mengeluarkan surat berikut kepada ISP (internet service provider) Malaysia untuk menghalang akses kepada 10 file hosting popular.