buksida wrote:1. Its like that most of the year with the occasional couple of months when it is more clear and blue/green in colour than brown. Such as in this pic:
2. Yes, they can be, they usually appear at certain times of the year (May to October).
3. Not as far as I know, the closest place with actual coral and marine life is
Koh Talu. I think most of the marine life around HH has been fished out and the water isn't clean enough to support coral growth which needs clear water and sunlight.
Thanks for you reply, Buksida. I was going to visit Koh Talu and now I'll do it in the next few days.
As for jellyfishes, I just found the information below. I hope it would be useful to everyone. Described species has also little sister named Carukia barnesi, not that lethal but dangerous too. Other species of jellyfishes here are harmless as far as I understood.
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Chironex fleckeri - multi-tentacled (chirodropids)
- long tentacles up to 3 metres, leave ladder-like welts.
- "most deadly animal in the world", with 70 deaths in Australia, and estimated 20-50 deaths annually. 2 recent deaths occurred in Thailand (Hat Rin Beach on Ko Phangan and a beach on Ko Samui).
Clinical features
- instant severe pain
- cardiac and respiratory arrest (can occur in minutes)
Risk factors - summer, warm water,
- female, kids, (less hair)
- swimming after sunset (can't see them).
Treatment - get out of water.
- call 911, commence CPR.
- pour vinegar over sting for 30 seconds/ or pull tentacles off with fingers.
- cold packs to decrease pain.
- +/- compression bandages over major sting area.
- emergency treatment with oxygen, analgesia.
