Diatoms stuff more iron into their silica shells than they actually need. As a result, thereís not enough iron to go around, and the added iron during fertilization experiments may stimulate less productivity than expected. The study also says that the removal of iron through incorporation into diatom silica may be a profound factor controlling the Southern Oceanís bioavailable pool of iron, adversely affecting the ecosystem.

12th June 2013 05:26 PM

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