Language:  GlossaryImagesHelp
 
Home: ABOUT: Coasts and Coral Reefs: How Do Stony Corals Grow?
Advanced Search | an expanded view of Topics and Knowledge in the Atlas
 Login for Members

 Username
 
 Password
 

Forgotten your Password?

Not a Member? Join Now

 
Navigate the Atlas:
 Topic Overview
 Editors
 
How Do Stony Corals Grow? Maintained by NOAA  
Text-only     Printer-friendly version             
How Do Stony Corals Grow?
 
Most stony corals have very small polyps, averaging 1 to 3 millimeters in diameter, but entire colonies can grow very large and weigh several tons. As they grow, these reefs provide structural habitats for hundreds to thousands of different vertebrate and invertebrate species. The skeletons of stony corals are secreted by the lower portion of the polyp. This process produces a cup, or calyx, in which the polyp sits. The walls surrounding the cup are called the theca, and the floor is called the basal plate. Periodically, a polyp will lift off its base and secrete a new basal plate above the old one, creating a small chamber in the skeleton. While the colony is alive, CaCO3 is deposited, adding partitions and elevating the coral. Coral species number in the thousands, and stony corals take on several characteristic forms. Reefs form when polyps secrete skeletons of calcium carbonate
 
 
 
 
All  (576) News   (166) Events   (10) Websites   (67) Documents   (100) Books   (40) Multimedia   (15) Projects   (3) Contacts   (172) Institutional Contact   (3)
 All
 
News
Events
Global Oceans Action Summit for Food Security and Blue Growth (restricted access)
Websites
Progress in restoring the Klamath River Basin, Oregon and California (USA) and its historic salmonid fisheries.  A cooperative effort between native Americans, commercial and recreational fishers. Activities in the Klamath River Basin Progress in restoring the Klamath River Basin, Oregon and California (USA) and ...  
Information on U.S. estuaries (Now merged with Oceana) American Oceans Campaign Information on U.S. estuaries (Now merged with Oceana) 
CEFAS is an internationally renowned scientific research and advisory centre working in fisheries management, environmental protection and aquaculture. CEFAS - The UK Centre for Environment Fisheries and Aquaculture Science CEFAS is an internationally renowned scientific research and advisory centre wo...  
searchable database/Listserve CHAMP: Online Coral Researchers List-Serve searchable database/Listserve 
  « Previous  1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  Next » 
976 Topics - 5514 Related Knowledge - 11393 Members - 48 Editors
freeMem:131,993,344 totMem:478,478,336 reqNum:1143878 openSessions:0 generationTime:2014/04/25 06:47:57