[Coral-List] Ocean acidification beneficial in short term to Corals ?

Isaac Westfield seymour47 at gmail.com
Thu Feb 5 11:32:58 EST 2015


One current explanation for this is that some of these corals are carbon
limited to a degree. So, the added CO2 provides them with additional carbon
to use in calcification. Eventually, though, the depression of pH will
outpace the positive effect of more available carbon. On the other hand,
thus doesn't hold true for all corals and other calcifiers. Many of these
organisms see no positive benefit from the additional carbon.

On Feb 5, 2015 11:03 AM, "Lane W" <dryland404 at gmail.com> wrote:

> Hello Coral listers,
> Does anyone have additional information in regards the the recently
> released reports showing some corals experiencing a benefit to increased
> ocean acidification and temperature? This seems contrary to has been
> taught.
> http://www.flmrg.org/viewtopic.php?f=7&t=63
> "The study showed that this species of coral (Siderastrea siderea)
> exhibited a peaked or parabolic response to both warming and acidification,
> that is, moderate acidification and warming actually enhanced coral
> calcification, with only extreme warming and acidification negatively
> impacting the corals," Ries said. "This was surprising given that most
> studies have shown that corals exhibit a more negative response to even
> moderate acidification."
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