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Rib Reef

Rib Reef lies about 70km offshore and is a mid-shelf reef. 


Like John Brewer Reef, waves of crown-of-thorns starfish have impacted this reef since the 1980s. It is not uncommon to see a small population somewhere, and in areas where Acropora plates dominate it is usual to see patches of healthy coral interspersed with recently eaten dead coral. In 2002, shallow water corals were impacted by bleaching.

Rib 163 consists of 3 separate lines at different depths on the reef front. The 2 deeper lines have low coral cover and were impacted by crown-of-thorns starfish in the mid 1980s. 

Recovery has been slow compared to the shallowest site, 163_3, which shows better recovery following disturbance. Rib 166 consists of 3 lines and is located in the semi-protected waters at the flank of the reef. 

It is a shallow site in an area dominated by Acroporid plates and branching species. A population of crown-of-thorns starfish is usually evident somewhere in this area and coral cover fluctuates in response to COTS feeding. Following a disturbance this site shows good recovery.


 

 

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Last updated - December 18, 2008
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