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Mar
16
2010
Iron fertilization could increase toxin production in ocean
Cheapest viagra online, 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. Viagra purchase by mobile text message, Adding iron to the ocean would spur the growth of phytoplankton, which in turn would suck carbon dioxide from the atmosphere, what's the difference between viagra and viagra professional. Viagra to buy, 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, how to viagra, Purchase viagra from canada, a neurotoxin. These phytoplankton are known to release domoic acid along the coast, buy mexico viagra, Where can i buy viagra in belfast, but previous studies suggested that Pseudonitzschia species in the ocean weren't toxic.
When the researchers sampled water in the subarctic Pacific, however, viagra newsletter sign up, What stores to buy viagra, 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, cost of viagra at pharmacies in portland oregon, Is a rx required to buy viagra, 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, viagra-FDA. 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, cheapest viagra online. Viagra diseño caja, – Roberta Kwok
Source: Trick, C.G, what is viagra made of. Kosovo viagra, et al. 2010. Iron enrichment stimulates toxic diatom production in high-nitrate, low-chlorophyll areas. Proceedings of the National Academy of Sciences DOI: 10.1073/pnas.0910579107.
Image © dra_schwartz, iStockPhoto.com
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