[Coral-List] more on the bottom-up/top-down issue
Gene Shinn
eshinn at marine.usf.edu
Tue Oct 10 14:57:01 EDT 2006
Thanks Jeremy, I appreciate the list of publications. However, what I
said was, "Hopefully all this fuss will stimulate someone to do
large-scale experiments, especially ones that examine the effects of
various nutrient levels on corals in controlled conditions." The list
of outstanding publications you posted do not do that. They appear to
be oriented more toward climate change issues determined by field
observation, and computer simulations (regional variation using
meta-analysis and large-scale sampling), etc. What I had in mind is
basic manipulative research (that no one seems to do anymore) more
along the lines of the ENCORE project, or controlled microcosm
research aimed directly toward solving the nutrient issue. I know it
is difficult, if not impossible, to separate the various and numerous
factors causing reef demise, but it would be a start. Until such
research is conducted we will likely continue the sophistry much as
we did with the crown of thorns starfish issue during the 1970s. Why
doesn't someone just get on with it and determine with direct means
just how many micro moles of nitrogen and other nutrients are
necessary to sustain a resilient coral reef? Such data could then be
compared with actual levels measured on actual coral reefs. We might
then have more basis for argument. Would knowing what level corals
can or can not sustain also be useful for coral reef managers? 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----------------------------------
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