[Coral-List] Alga densities and bleaching

Szmant, Alina szmanta at uncw.edu
Mon Nov 26 18:44:15 EST 2012


FYI, every place I dive where there is metal structure (old ship hulls, navigation pilings etc) they are covered with nice looking corals of all species.  There is a great example in the Dry Tortugas where there is an shallow water old wreck (I can't remember the name now) near the old Carnegie Station, that has huge corals growing on it!  These metal substrates would make great coral habitat except for the fact that they eventually rust, and the corals slough off.  I think the coral larvae like the iron-rich substrates..  Iron-rich volcanic rocks seem to have the same attraction to coral larvae.

*************************************************************************
Dr. Alina M. Szmant
Professor of Marine Biology
Center for Marine Science and Dept of Biology and Marine Biology
University of North Carolina Wilmington
5600 Marvin Moss Ln
Wilmington NC 28409 USA
tel:  910-962-2362  fax: 910-962-2410  cell: 910-200-3913
http://people.uncw.edu/szmanta
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-----Original Message-----
From: coral-list-bounces at coral.aoml.noaa.gov [mailto:coral-list-bounces at coral.aoml.noaa.gov] On Behalf Of Delbeek, Charles
Sent: Sunday, November 25, 2012 4:04 PM
To: coral-list at coral.aoml.noaa.gov
Subject: Re: [Coral-List] Alga densities and bleaching

What are the currents like?

J. Charles Delbeek, M.Sc.
Assistant Curator, Steinhart Aquarium
California Academy of Sciences

p 415.379.5303
f. 415.379.5304
cdelbeek at calacademy.org
www.calacademy.org

55 Music Concourse Drive
Golden Gate Park
San Francisco, CA 94118

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-----Original Message-----
From: coral-list-bounces at coral.aoml.noaa.gov [mailto:coral-list-bounces at coral.aoml.noaa.gov] On Behalf Of Rudy Bonn
Sent: Wednesday, November 21, 2012 9:08 AM
To: coral-list at coral.aoml.noaa.gov
Subject: [Coral-List] Alga densities and bleaching

Interesting?  The Key West Marine Park is managed by Reef Relief here in Key West.  It is a ~48 acre site on the south side of the island and fronts Higgs beach, Dog beach, and extends from the duval street pier east to the white street pier, (Gene is probably familiar with the area) anyway, years ago the county/city put in a new pier at Higgs Beach and left portions of the old one behind.  These submerged portions of the old pier are made of iron, and there are corals attached to this iron substrate in amazing numbers and diversity, and they are all in very good health, I can send pictures if you contact me by my email, the water depth is 12 foot max on a spring tide, so we know that during the summer months the temp probably reaches the upper 80's  these corals show no signs of disease, alga overgrowth, bleaching,  like I said in really good health.  Any ideas?  the genera we have found include:  montastrea, siderastrea, porites, diploria
 (several sp) meandrina, oculina, among others, all in good health all attached to iron,    ideas?

Rudy S Bonn
Director of Marine Projects
Reef Relief
631 Greene Street
Key West, FL 33040
305-294-3100
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