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… for nearly five decades. In these frigid systems, where organisms higher up in the food web like fish do not exist, … studies focused on the Southern Ocean have found that in winter months, when sunlight is nonexistent, the bacteria are … Near the lower portion of the top layer, known as the interface, there is a strong chemical and salinity gradient …

… . Their study focuses on the discovery of new populations within the Korarchaeota, one of which contains genes for … genomes, which helped the researchers position the lineage within the archaeal domain. The information, Inskeep added, … for the anaerobic oxidation of methane, a subject of great interest in environmental and evolutionary microbiology.” …