dead coral

John McManus jmcmanus at rsmas.miami.edu
Mon Apr 2 15:28:09 EDT 2001


Victor

Following up on concerns of some of my colleagues, I found fairly convincing
evidence that people build up local concepts of what is a piece of algae
(growing on dead coral) and what is a dead coral. Thus, if you compare data
within a part of a country in which there is a lot of interaction, a few
influential researchers and/or centralized training, the data tend to be
comparable. Between such centers, and among countries, the concept can
differ radically. Thus the categories "macroalgae", "dead coral", "coral
rubble" and ratios thereof are often not comparable.  Some workers even
recommend dividing coral into living and macroalgae, assuming (in some ways
correctly) that virtually all dead coral has macroalgae settled on it.
However, that kills the use of dead coral as a potentially valuable, though
as yet difficult to define, variable.

Good luck!

John

_________________________________________________________

John W. McManus, PhD
Director, National Center for Caribbean Coral Reef Research (NCORE)
Rosenstiel School of Marine and Atmospheric Sciences (RSMAS)
University of Miami, 4600 Rickenbacker Causeway
Miami, Florida 33149.
jmcmanus at rsmas.miami.edu
Tel. (305) 361-4609
Fax (305) 361-4600

 -----Original Message-----
From: 	owner-coral-list at coral.aoml.noaa.gov
[mailto:owner-coral-list at coral.aoml.noaa.gov]  On Behalf Of Gomelyuk, Victor
Sent:	Saturday, March 31, 2001 9:44 PM
To:	'coral-list at coral.aoml.noaa.gov'
Subject:

Dear Colleagues,

I wonder if you would like to share your ideas on live coral/coral rubble
percent cover ratio as indicator of coral reef reef destruction?
Any refferences available on this issue?

Regards,

Victor Gomelyuk

Dr Victor E. Gomelyuk
Marine Scientist
Cobourg Marine Park
PO Box 496 PALMERSTON NT 0831 AUSTRALIA
phone 61 (08) 8979 0244
FAX 61 (08) 8979 0246


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