Archive for ‘Other’

Nudibranchs

By , 14 October, 2014, No Comment

Koh Tao has many different types of fish and marine life, one of which is the nudibranch.

Nudibranchs (pronounced Noo-di-BRANKs) are gastropod mollusks. That’s a fancy way of saying ‘sea slug.’ Unlike other slugs, nudibranchs possess fantastic coloration and colour patterns. The coloration of each species comes from the prey they eat: the more colourful the prey, the more colourful the nudibranch. There are more than 3,000 species of nudibranch worldwide and more species are being discovered all the time. They crawl slowly across the ocean floor using a single foot, just like a garden snail. Some types of nudibranchs live only a month, while other species live as long as a year. Some species are only about one-quarter inch long at full maturity, others can swell to as long as 12 inches. Nudibranchs have many strange protrusions, including a pair of horn-like tentacles or “rhinophores” worn near the front of their bodies. These horns are primarily chemical sensing organs that help the nudibranch find its prey. Nudibranchs have soft bodies and most lack an external protective shell. This exposure is what inspired their neo-latin/greek name “nudibranch” which means “nude or naked gills.”Without a shell, nudibranchs had to evolve another way to ward off predators. They accomplished this in multiple ways: the development of toxic (aka bad tasting) glands in their skin, and bright colours meant to tell predators that taking a bite is a terrible decision. But that’s not all. Aeolid nudibranchs steal nematocysts (stingers) from the animals it eats (corals, sea anemonesand jelly fish).

 

by Sophie

Doc1

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HTMS Sattakut

By , 26 September, 2014, No Comment

Hey all,

 

today I’m going to be talking about one of the great wrecks we can dive to on this island, the HTMS Sattakut. The Sattakut was laid down at Commercial Ironworks in Portland Oregon. She was launched on February 27th, 1944 and commissioned into the US Navy as a Landing Craft Infantry large. After her long service she was commissioned into the Thai Navy as the HTMS Sattakut in 1946, and was sunk in Koh Tao on the 18th of June 2011 and to this day she is one of the most popular sites to dive especially for a PADI advanced open water course.

She lies approximately 40m south of Hin Peewee with her bow facing Northwest, Sitting upright. The top of the wreck is around 20m and and since she lies on a slope the bottom is at about 32m. When she was sank as a part of an artificial reef project in 2011 she landed on her starboard side in a different location to where she is now, it was only after a few months that her position was corrected and she was put back upright that more and more people started to dive on her.

 

by Nick

wreck

 

 

 

 

 

 

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Dive Island

By , 24 September, 2014, No Comment

People come to Koh Tao for various reasons, whether for the night life and  parties or our beautiful beaches and bays, but you can’t overlook the diving!

Koh Tao is a scuba diving island, it’s the reason everything is here today and the undoubted highlight of the gulf of Thailand so why not consider it. I’ve been diving here for 3 years with Djl diving growing from a complete beginner to a teaching instructor and along the way I’ve seen some amazing things… From eagle rays at Japanese Gardens, turtles at Twins and White Rock, a WWII era ship wreck just off hin pee wee, and everyone’s favorite giant, the whale shark out at Chumphon, South West or Green Rock, along with all the countless other fish that inhabit our wonderful reefs.

It’s all down there just waiting to be explored!!!

by Russ

koh tao 2

 

 

 

 

 

 

korytnacka

 

 

 

 

 

 

 

 

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Sea Cucumber

By , 20 September, 2014, No Comment

One of the joys of diving is learning about the thousands of different underwater creatures that live in our oceans.  Students always ask me about the fish they see when we surface.

One of the animals that I get the most questions about is the sea cucumber.  They’re are wild looking bunch of creatures that look like thick, short worms.  Here’s some interesting facts about them:

  • Their body consists of collagen fibers that they can loosen and tighten at will.  So if they want to squeeze into a crack in the rocks, they can essentially liquefy their body and then tighten back up once the emerge.
  • There are over 1,700 different species of sea cucumber which can look wildly different from one another.  Some of them have feet and can walk around (we see these here) and some of them have webbed structures that allow them to effectively swim around.
  • We see lots of them on dives here on Koh Tao, but they also are very common at extremely deep depths (kilometers under water) where they make up to 90% of all the animals that live so deep.
  • They’re certainly not the most beautiful animals we see, but they’re cool in their own way.

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Pete

seacucumber

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DJL TRASH CLEAN UP

By , 15 September, 2014, No Comment

Koh Tao is a favorite travel destination in Thailand and Southeast Asia because it offers all the ingredients for a picturesque holiday; sandy beaches, warm weather, palm trees and scuba diving 365 days a year.

However one thing that you don’t include in the picture is rubbish sticking out of the sand and floating along the ocean’s surface. With the continuous flow of travelers on and off Koh Tao, it has become important that local businesses take on some of the responsibility for maintaining the natural beauty of  this diving haven.

Today Davy Jones is organizing a beach clean up to do just that. As a PADI 5 Star IDC Center, Davy Jones works in alliance with Project AWARE and Ocean Conservancy in the fight for trash free seas.

The fight against debris is an important cause, not just because rubbish on the beach LOOKS bad, but because it IS bad. Trash in our seas affects both traveling and scuba diving by compromising the health of humans, wildlife  and any other livelihoods that depend on healthy ocean.

Feel free to come join the Davy Jones team in our fight against debris this afternoon or anytime you find yourself on Koh Tao, Thailand. We will be meeting at DJL Pool Bar and carry our cause to Sariee Beach!


Hannah Harrelson

beachclean

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