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Field Guide to Western Atlantic Coral Diseases and Other Causes of Coral Mortality
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Causes of Coral Tissue Damage

Predators

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Four-eye butterflyfish (Chaetodon capistratus) feeding on starlet coral Siderastrea siderea

Several animals eat coral polyps, such as butterflyfish, parrotfish, coral-eating snails and fireworms. These organisms are known as corallivores.

Without observing the predator, it is possible to misidentify tissue loss from predation as a coral disease. However, there are often tell-tale signs associated with predation. This includes the removal of tissue in an identifiable pattern, or a loss of tissue that is associated with removal of the upper layers of the coral's skeleton. Fish predators often leave characteristic bite marks that form an outline of their upper and lower jaws.
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Female (initial phase) stoplight parrotfish (Sparisoma viride) biting on a lobate star coral, Montastraea annularis.

Predators:

Snails and Worms
Parrotfish White Spot Biting
Threespot Damselfish

Yellowtail Damsefish
Related pages:

Predators and Black-Band Disease.
Predators and White-Band Disease.
Predators and White plague.


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Text and photographs: Andrew Bruckner (andy.bruckner@noaa.gov) of NOAA Fisheries
Page design: James O'Carroll (james.ocarroll@unep-wcmc.org) of UNEP World Conservation Monitoring Centre
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