Since these algae deposit calcium carbonate (limestone) in most of their cell walls, red corallines have the appearance and rough texture of coral. Grazing on these calcified algae would be like eating marble, so most hungry herbivores feed elsewhere.
Mediterranean Red Coral Corallium rubrum
Often called precious coral, Mediterranean red coral has been collected and its skeleton made into jewelry for centuries.
Red coral gemstone: Red shades of coral are sometimes used as a gemstone, especially in Tibet. In vedic astrology, red coral represents Mars.
Red coral (Corallium rubrum)
The beauty of Corallium corals may be their downfall, as they are harvested at unsustainable levels to be made into expensive jewellery or... More 9 Images 1 Video ...
Protecting the Red Coral of the Catalan Coastline, Spain
November 25, 2011 " Poaching accounts for the loss of up to 60% red coral biomass in the Medes Islands Marine Reserve, according to a new article.
Although corals have been familiar objects since the days of antiquity, and the variety known as the precious red coral has been for a long time an article of commerce in the Mediterranean, ...
They can be found along reef edges with broken rock, reef flats with scattered coral heads or near grass flats, and often come into very shallow waters to feed in algae.
Many of the sandy beaches were pinkish, caused by tiny fragments of red coral mixed in with the sand. Here's a hunk of that selfsame red coral surrounded by thousands of broken-off pieces of other types of coral.
In Undersea Lab, 'Aquanauts' Study Endangered Coral Reefs
Team spends 10 days nearly 50 feet below the waves.
For How Long Are Animals Pregnant? (Infographic) ...
The gorgonians include the whip corals, sea feathers, sea fans, and the precious red coral. Gorgonians are common reef fauna, and can be found in most tropical waters, but especially in the West Indies.
Among the well-known soft corals are the sea pen, sea pansy, whip coral, and organpipe coral. The precious red coral (Corallium) of the Mediterranean Sea, used for jewelry, also belongs to that group. The spicules of its skeleton are fused together.
 See also: Coral, Shell, Lion, Shark, Sea Lion
  
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