Coral Skeletons

Juan A. Sanchez js15 at
Thu Jan 13 10:12:18 EST 2000

Dear Marina and colisters,

In this link,, you will find an example
of recently grazed coral (Montastraea annularis) after less than 24 hours
(top), in the middle an injury after one month (plenty of algae), and below
injuries after 15 days (mixed colors, algae and regenerating polyps). I can
tell you (based on the observations of this species, 1-2 weeks for 12
months) that the white skeleton after grazing remains for about 5 to 8 days
very bright. Cheers,

Juan A. Sanchez
Department of Biological Sciences
State University of New York at Buffalo
109 Cooke Hall, Buffalo, NY 14260

----- Original Message -----
From: Marina Cole <ecoanne at>
To: coral list <coral-list at>
Sent: Friday, January 14, 2000 3:41 AM
Subject: Coral Skeletons

> Dear Coral-Listers:
> Can anyone give me a ball-park figure for how long it takes for white
> coral skeletons (which could be considered "recently dead" coral) to
> turn grey.  I imagine it depends on the conditions but are we talking
> weeks or months?
> Regards,
> Marina Cole
> --
> Reef-World (Thailand)
> Web: E-mail: ecoanne at
> Tel: 66-(0)76-263-306 Fax: 66-(0)76-263-286
> Post: P O Box 22, Karon, Phuket 83100, Thailand
> "In order to burn out, a person needs to have been on fire at one
> time"-Ayala Pines

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