[Coral-List] Melissa Keys, Iron experiment
Gene Shinn
eshinn at marine.usf.edu
Wed Oct 10 13:26:23 EDT 2007
Dear Melissa, You remembered the iron experiment quite well. It was
called Iron-X. I had many conversations with Dick Barber, one of the
leading members of the expedition. He in fact convinced me to go
public with the African dust hypothesis based on iron to explain
algal blooms and coral death. Iron is the most consistent element in
the dust (4 to 6 percent). That form of iron is not very soluble in
sea water but the research led to discovery of microbes and other bad
stuff carried by the dust. You may remember that increasing dust flux
to the Caribbean began in the early 1970s, and peaked during the El
Nino years of 1983 and 84. The next big peak was in 1998. If you were
living in St. Croix at that time you really got a good dose and I'm
sure you have seen plenty during the last two summers. It now seems
to be well recognized that increased dust during the past two years
played a big role in reducing the formation of Atlantic hurricanes.
One of the discussions I have not forgotten about Iron-X was
that it would not have happened with peer-review or bottom-up
support. It happened because some key politicians got behind the
idea. It was a top down experiment that, whether one likes it or not,
proved conclusively that John Martin's original iron fertilization
hypothesis was in fact correct. Many peer-review articles came out of
the research. Gene
--
No Rocks, No Water, No Ecosystem (EAS)
------------------------------------ -----------------------------------
E. A. Shinn, Courtesy Professor
University of South Florida
Marine Science Center (room 204)
140 Seventh Avenue South
St. Petersburg, FL 33701
<eshinn at marine.usf.edu>
Tel 727 553-1158----------------------------------
-----------------------------------
More information about the Coral-List
mailing list