[Coral-List] Palythoa or Trididemnum
Thomas Goreau
goreau at bestweb.net
Thu Jan 17 10:37:59 EST 2008
Dear Ellen,
I think it is pretty clear now that most people are not confusing
Palythoa. Palythoa however can overgrow and kill corals and I have
seen it doing so very actively in SE Florida, Brazil, and Toco in
Trinidad.
Thomas J. Goreau, PhD
President
Global Coral Reef Alliance
37 Pleasant Street, Cambridge MA 02139
617-864-4226
goreau at bestweb.net
http://www.globalcoral.org
Date: Wed, 16 Jan 2008 18:30:59 -0800 (PST)
From: Ellen McRae <siwaban at yahoo.com>
Subject: Re: [Coral-List] Fwd: Mat tunicate problem?
To: Alex Brylske <Brylske at aol.com>, coral-list coral-list
<coral-list at coral.aoml.noaa.gov>
Message-ID: <557964.31179.qm at web56809.mail.re3.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Could this be the colonial mat anemone Palythoa caribaeorum? This is
what it sounds most like to me. They form mats 1 m or so across on
nonliving rocks in shallow water. Not all individuals in a colony are
open, and their short tentacles may not be visible. These look like
series of pale lumps, each about a centimeter across, encrusting the
substrate. The "spiders" sound like Arrow crabs. Too many errant
polychaetes to hazard a guess about the worms. To my knowledge this
is not a pathology and should not be removed. Any other opinions
about this welcome!
Best wishes--
Ellen McRae
Caye Caulker
Belize, C.A.
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