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Amazon River enhances diazotrophy and carbon sequestration in the tropical North Atlantic Ocean
The fresh water discharged by large rivers such as the Amazon is transported hundreds to thousands of kilometers away from the coast by surface plumes. The nutrients delivered by these river plumesExpand
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Dynamic bacterial and viral response to an algal bloom at subzero temperatures
New evidence suggests that cold-loving (psychrophilic) bacteria may be a dynamic component of the episodic bloom events of high-latitude ecosystems. Here we report the results of an unusually earlyExpand
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Pole-to-pole biogeography of surface and deep marine bacterial communities
The Antarctic and Arctic regions offer a unique opportunity to test factors shaping biogeography of marine microbial communities because these regions are geographically far apart, yet share similarExpand
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Role for urea in nitrification by polar marine Archaea
Despite the high abundance of Archaea in the global ocean, their metabolism and biogeochemical roles remain largely unresolved. We investigated the population dynamics and metabolic activity ofExpand
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The pathways and properties of the Amazon River Plume in the tropical North Atlantic Ocean
[1] The Amazon River Plume spreads across the tropical North Atlantic creating a barrier to vertical mixing. Here using a 1/6° HYCOM model and data from three research cruises in May–June 2010,Expand
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Seasonal variations in the Amazon plume‐related atmospheric carbon sink
[1] The Amazon River plume is a highly seasonal feature that can reach more than 3000 km across the tropical Atlantic Ocean, and cover ∼2 million km2. Ship observations show that its seasonalExpand
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Sizing up metatranscriptomics
A typical marine bacterial cell in coastal seawater contains only ∼200 molecules of mRNA, each of which lasts only a few minutes before being degraded. Such a surprisingly small and dynamic cellularExpand
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Phaeocystis antarctica blooms strongly influence bacterial community structures in the Amundsen Sea polynya
Rising temperatures and changing winds drive the expansion of the highly productive polynyas (open water areas surrounded by sea ice) abutting the Antarctic continent. Phytoplankton blooms inExpand
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Microspatial gene expression patterns in the Amazon River Plume
Significance The microbial community of the Amazon River Plume determines the fate of the world’s largest input of terrestrial carbon and nutrients to the ocean. By benchmarking with internalExpand
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