| 1. | They can also be found in very shallow water on reef flats.
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| 2. | It can be found in groups at depths from on reef flats.
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| 3. | Martensia fragilis grows on rocks in tide pools and on reef flats.
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| 4. | Coral reef flats are considered the most aesthetically beautiful underwater community known.
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| 5. | They occur in coral-rich areas of reef flats, lagoons and seaward reefs.
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| 6. | The island is made up of coral atolls and reef flats.
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| 7. | This rim is maintained by the constant flow of water over the reef flat.
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| 8. | The reef covers a total area of 100 km? including lagoon and reef flat.
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| 9. | The total area of the atoll, with in diameter, is, including reef flat and lagoon.
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| 10. | It is common on reefs, upper reef slopes and reef flats in the tropical Indo-Pacific.
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