<html>
<font size=3>In answer to questions posed by Angela Dikou:<br>
1) shallow SE Asian reefs have been known to undergo transformation
from healthy diverse ecosystems to algae-dominated rubble fields in a
few months time ( primarily from blast fishing).<br>
2) for in depth discussion of biological vs. physical impacts on coral,
find this Phd.dissertation : Edinger, E. N. 1998. <u>Effects of
Land-Based Pollution on Indonesian Coral Reefs: Biodiversity, Growth
Rates, Bioerosion, and Applications to the Fossil Record</u>. Pp. 297.
Phd. dissertation. McMaster University, Hamilton, Ontario, Canada.
<br>
<br>
Angela Dikou Subject: Two questions... Hello everybody, I would like to
address two questions: 1. Imagine you have a mature coral reef community
which is exposed to heavy sedimentation, and very likely eutrophication,
for more than 30 years. After a number of years, in the same place that
you used to have live corals there is only rubble. How long do you think
that it would take for such a change from live coral to rubble, covered
by filamentous algae, to occur? There are no major physical distrurbances
in the area. 2. Is there any essay or trite on biologically vs.
physically mediated coral reef communities (or any ohter type of
communities)?. The only note on the subject I found appears in Rogers
(1990) review on sedimentation effects on corals and coral reefs and in
Tomascik et. al. (1993) case-history of change on the Kepulauan Seribu,
Java Sea. In the first reference, the note made concerns changes in
regultion of communities with increase in depth. In the second reference,
a comparison is made between GBR and the Indonesian archipelago in
relation to the relative importance/role of physical disturbance to the
evolution, structure and function of these two coral reef systems. Thank
you very much Angela - - </font>
<BR>
</html>
~~~~~~~
For directions on subscribing and unsubscribing to coral-list or the
digests, please visit www.coral.noaa.gov, click on Popular on the
menu bar, then click on Coral-List Listserver.