[Coral-List] Coral Surface Area-Responses

[William Allison]

Baker's dozen anybody? This paper explores the accuracy of geometric proxy
approaches.
"Estimating 3-dimensional colony surface area of field corals"
JEMBE.2007.351.1-2.234-242.Courtney



On Thu, Apr 10, 2008 at 10:22 AM, Michael Risk <
riskmj at univmail.cis.mcmaster.ca> wrote:

> I am afraid that what this thread demonstrates is: there are few fields
> of science more littered with the debris of re-invented wheels than
> coral reef biology.
>
> Turns out there have been DOZENS of these exercises, since Rose and
> Risk 1985. None of them built on what went before, they all started
> afresh.
>
> Just think how much further ahead we would be if we even stood on the
> shoulders of pygmies...or read more.
>
> Mike
>
> On Wed, 09 Apr 2008 12:14:53 -0400
>  Joe Schittone <Joe.Schittone at noaa.gov> wrote:
> > ?????? ??????Hi Tyler,????Seems you've gotten plenty input. I've
> > learned a lot from them, ??and??from the refs.????Re my own contrib,
> > I should've noted that it models the SA of ??a??cylinder standing on
> > end, which is what was needed for purposes, ??but??the formula can be
> > easily adapted for different ellipsoidal figures.????Also, my
> > equation was always accurate to w/in ~2%, and almost always ??to??1%
> > (the former only for /very/ elongated cylinders). So, ??much??depends
> > on the level of precision needed for what you're doing.????And I had
> > to have something that didn't require differentiation ??or??trig.,
> > i.e.,??that could be loaded into Excel. For example, here's ??what I
> > ended up??with in formula bar:
> > =(PI()*a/2*b/2)+(2*PI()*([a+b]/4)*h).????Let me know what equations
> > you derive and end up using for your work,????Joe????????Tyler Smith
> > wrote:????> Fantabulous.   Apparently people have lots of
> > experience??estimating ??> coral surface area????> ????> ??I'll
> > summarize the advice below:??
>
> Mike Risk
> Marine Ecologist
> PO Box 1195
> Durham Ontario
> N0G 1R0
> _______________________________________________
> Coral-List mailing list
> Coral-List at coral.aoml.noaa.gov
> http://coral.aoml.noaa.gov/mailman/listinfo/coral-list
>