[Coral-List] sponge bioerosion
clare at ecology.su.se
Wed Oct 18 10:59:32 EDT 2006
Interesting discussion on bioerosion...
Regarding Stephen Jameson's questions on sponge erosion in 'minimally
impaired environments', we quantified bioerosion in coral rubble (using a
modified 'Holmes' approach) in the Chagos Archipelago in 2001. This was in
the context of post-bleaching recovery (or otherwise) of the reefs there.
Chagos has to be one of the most minimally impaired environments there is,
with more-or-less no direct human impacts. However, sponge bioerosion in the
rubble was extensive everywhere. We compared the extent of bioerosion on
different atolls, in lagoons vs on reef slopes, and exposed vs sheltered
sites. Infestation was not related to atoll size or location...
Charles R.C. Sheppard, Mark Spalding, Clare Bradshaw and Simon Wilson
Erosion vs. Recovery of Coral Reefs after 1998 El Niño: Chagos Reefs, Indian
Ocean. Ambio 31(1): 40-48
Dept of Systems Ecology
Date: Tue, 17 Oct 2006 16:42:02 +0000
From: "Dr. Stephen Jameson" <sjameson at coralseas.com>
Subject: Re: [Coral-List] Michael Risk - C. delitrix as measure of
To: Michael Risk <riskmj at univmail.cis.mcmaster.ca>, Gregor Hodgson
<gregorh at reefcheck.org>, <jrohde at msh.org>,
<coral-list at coral.aoml.noaa.gov>
Message-ID: <C15AB851.4AEC%sjameson at coralseas.com>
Content-Type: text/plain; charset="US-ASCII"
1. Have you given any thought as to what would be appropriate reference
conditions (concentrations in minimally impaired environments) for the
various Cliona species in their respective geographical locations throughout
2. In minimally impaired conditions, does their concentration vary in
different coral reef zones?
Dr. Stephen C. Jameson, President
Coral Seas Inc. - Integrated Coastal Zone Management
4254 Hungry Run Road, The Plains, VA 20198-1715 USA
Office: 703-754-8690, Fax: 703-754-9139
Email: sjameson at coralseas.com
Web Site: http://www.coralseas.com
Smithsonian National Museum of Natural History
Washington, DC 20560
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