Marine Biology ch. 14
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Created by:
Grant_Horvath on March 11, 2009
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31 terms
Terms | Definitions |
|---|---|
 Calcium Carbonate (limestone) | coral reefs are made out of this |
| Coral | most important reef building organism |
| Cnidarians | reefs are classified |
| Hermatypic | reef-building |
| Athermatypic | non-reef building |
| Fire coral | related to the jelly-fish because of their powerful nematocysts |
| Soft coral | lacks a hard skeleton |
| Black coral and Gorgonians | sea fans and whips, skeleton is made of protein |
| Precious coral | have a calcareous skeleton and live mainly in deep water habitats |
| Coral larva | (planula) settle on hard surfaces |
| Larva | transform into a polyp |
| Polyp | divides to form colonies |
| Zooxanthelle | help nourish coral and produce their skeletons |
| Zooxanthelle | coral skletons produce slowly without what |
| Halimeda (green algae) | deposit limestone within its tissues for support |
| Coral Rubble | coral fragments |
| Biogenous Material | shells and skeletons of living organisms |
| Coral Reefs | are found only on the continental shelves around islands |
| Reef-Building corals | this coral can grow and reproduce only if the average water tempature is 68 |
| Fringing Reefs | simplest and most common reef |
| Fringing Reefs | develop near shore line |
| Reef Flat | wildest part, very shallow, sometimes exposed |
| Reef Slope | very steep, has the most dense cover and most species of coral |
| Reef Crest | shallow edge of the slope containing most of the coral |
| Back Reef Slope | coral growth not as abundant |
| Reef Flat | very shallow, some times very small sand islands |
| Fore Reef Slope | steepness determined by wind and wave action |
| Atolls | rings of reefs with steep outer slopes that enclose a shallow lagoon |
| Atolls | majority are found in the Indian Ocean and Pacific Ocean |
| Atolls | the two largest are found in the marshall and malive islands |
| Atolls Fore reef | nearly verticle in slope |
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