The Coral Reefs of the Red Sea

The Red Sea is an underwater paradise mainly because of one thing: the Coral Reefs.

Coral Reefs form via colonies of a stationary animal with a calcified skeleton. The coral animals feed by filtering plankton from the water, driven its way by sea currents. As the animals die off, their skeletons form the basis of the reef, and other animals adhere to the mass, and the cycle continues.

Corals also have algae living within its tissue. These algaes use photosynthesis to build up nutrients from sea minerals and dissolved carbon dioxide. It is the algae that give the corals their varying colors.

This is called a "brain coral", because it looks somewhat like a brain. It can grow to immense proportions.
Some corals are made out of spikes or horns, and grow in fan shaped colonies.
Others also fan out, but are more flat, with no spikes.
Colors can vary, and almost span the entire spectrum. I do not recall any green colored ones, but saw everything from cyan, violet, yellow, orange, red, ...etc.
The dead corals form the substrate for the new corals to grow on. Dead corals are white or grey, and if algae start to grow on it can be blackish as well. A healthy reef has lots of colors.
Many shapes of corals in this picture.
As the water deepens, the yellows, orange and red parts of the spectrum get absorbed by the water, and only the blues remain, fading into greys.

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Comments

that is so awsome

that is so awsome im gonna spend my summer there

Diving and Drupal

Khalid,

Thx for the diving pics. I often dive in the South Pacific and Carib. Hope to dive in the Red Sea someday. Glad you had the opportunity.

My programming allows me to explore Flex, Ruby/Rails, mySQL, Flash/AS, and any web/non-web 1st-person game arch (Away3D, PaperVision3D, Unreal engine) and modeling (3DSMAX).

But today I found Drupal, through a Fantastico lead. Then found your site. Congrats on leading the dedicated effort on Drupal. I hope to compare Drupal with FLEX/Rails, for eCommerce websites.

I see you are on LinkedIn. And that there is a Drupal Group.
I hope we can connect: www.linkedin.com/in/johnmkane

Good luck in all you do.

Best Regards,
John