This is very odd. Based on the abstract only (article behind paywall) it
appears that they attribute the diatom bloom to iron fertilisation.
Oddly they have not considered the role of silicic acid from the
dissolution of Mg silicate species in the finely powdered volcanic ash.
Silicic acid is often the limiting nutrient for diatoms, as they use it
to make their silica shells. There is ample geological evidence of
diatom (specifically) blooms being associated with falls of volcanic ash.
Is anyone able to post the actual article? Oliver.
On 17/08/2013 17:13, Wil Burns wrote:
FYI. wil
MEPS - Vol. 488 - Table of contents
<http://www.int-res.com/abstracts/meps/v488/>
*Mar Ecol Prog Ser (Print ISSN: 0171-8630; Online ISSN: 1616-1599)*
Copyright © 2013 Inter-Research. Published August 15
*Olgun N, Duggen S, Langmann B, Hort M, Waythomas CF, Hoffmann L,
Croot P *
Geochemical evidence of oceanic iron fertilization by the Kasatochi
volcanic eruption in 2008 and the potential impacts on Pacific sockeye
salmon
MEPS 488:81-88 <http://www.int-res.com/abstracts/meps/v488/p81-88/> |
Full text in pdf format
<http://www.int-res.com/articles/meps2013/488/m488p081.pdf>
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