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Mar
16
2010
Iron fertilization could increase toxin production in ocean
Buy soma c.o.d., Large iron fertilization efforts, intended to help sequester carbon in the ocean, could prompt phytoplankton to produce higher levels of a toxin, scientists say.
Some people have advocated iron fertilization as a way to fight global warming. Billig soma apotek, Adding iron to the ocean would spur the growth of phytoplankton, which in turn would suck carbon dioxide from the atmosphere, For soma online. Pharmacy soma, But scientists have debated the wisdom of this approach, arguing that it could lead to some unpleasant surprises for marine ecosystems.
A team focused on one potential hazard: a type of phytoplankton called Pseudonitzschia that can produce domoic acid, ordering soma from canada, Osta soma online, a neurotoxin. These phytoplankton are known to release domoic acid along the coast, buy soma without prescription, Ordering soma overnight delivery, but previous studies suggested that Pseudonitzschia species in the ocean weren't toxic.
When the researchers sampled water in the subarctic Pacific, however, bestill soma online, Kjøpe billig soma, they found domoic acid levels that sometimes exceeded 30 picograms per liter. Adding iron to bottles of ocean water containing Pseudonitzschia caused the phytoplankton to produce about twice as much domoic acid per cell, Texas TX Tex. , Acquistare online soma, the team reports in the Proceedings of the National Academy of Sciences.
Pseudonitzschia also tended to thrive more than other phytoplankton species in iron-enriched water, the researchers say, Kaufen soma. The effect on fisheries should be considered, they warn, since iron fertilization projects could potentially cause the release of enough domoic acid to affect fish such as wild salmon, buy soma c.o.d.. Washington WA Wash. , – Roberta Kwok
Source: Trick, C.G, αγοράζουν φτηνά soma. Ordering soma without prescription, et al. 2010, soma farmacia a buon mercato. Billige soma Apotheke, Iron enrichment stimulates toxic diatom production in high-nitrate, low-chlorophyll areas, soma online kopen. District of Columbia DC D.C. , Proceedings of the National Academy of Sciences DOI: 10.1073/pnas.0910579107.
Image © dra_schwartz, iStockPhoto.com
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