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| | What are Coral Reefs? (Site not responding. Last check: 2007-10-29) |
 | | Stony corals (scleractinians) make up the largest order of anthozoans, and are the group primarily responsible for laying the foundations of, and building up, reef structures. |
 | | While the growth patterns of stony coral colonies are primarily species-specific, a colonys geographic location, environmental factors (e.g., wave action, temperature, light exposure), and the density of surrounding corals may affect and/or alter the shape of the colony as it grows (Barnes, R.D. Barnes, R.S.K. and Hughes 1999, Lalli and Parsons, 1995). |
 | | Although living corals may be scarce except near the seaward section of this zone, its many microhabitats support the greatest number of species in the reef ecosystem, with mollusks, worms and decapod crustaceans often dominating the visible macrofauna (Barnes, R.D., 1987; Lalli and Parsons, 1995; Sumich, 1996). |
| www.coris.noaa.gov /about/what_are/what_are.html (2984 words) |
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