Wednesday, November 12, 2008
Echinoderms... along the Ogden Point Breakwater.
This diverse Group of marine animals is well represented along the Ogden Point Breakwater. Urchins, Sea Cucumbers, Brittlestars, Starfish and Sunflower Stars are members of this group since they all have similar fundamental features. The key features include 5-ray radial symmetry, and a calcerous skeleton underneath the skin and tube feet.
The Echinoderm plaque at point 3 along The Ogden Point Breakwater allows divers the chance to read a bit about what they may be viewing.
Echinoderms have a few important aspects in common. They have bony ossicles in their body and small jaws that are supported by a water vascular system. They also have tube feet which they use to attach to objects, for protection, as well as to obtain food. Most can regenerate lost limbs. All five classes below are well represented along The Ogden Point Breakwater.
For more information, you can watch the Ogden Point Enhancement Society web site >