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- W3137994989 startingPage "103515" @default.
- W3137994989 abstract "Spatial distribution patterns of protists in the deep sea are not yet understood and due to the remoteness of the deep-sea biome this is a challenging task. Here, we investigated the structure and dispersal of protist communities in abyssal sediments at three sites in the Caribbean Sea (15°53.21′N/68°55.73′W), the northwestern Atlantic (23°33.23′N/48°05.04′W) and the central Atlantic Ocean (10°20.38′N/36°57.76′W), focusing especially on small horizontal (~1 m) and vertical (1 cm) spatial scales. High-throughput sequencing of the V9 SSU rDNA, revealed diverse protist communities dominated by diplonemids and dinoflagellates. Only 12% of OTUs were shared between the three deep-sea regions (4000–5134 m deep), indicating patterns of protistan distribution at large spatial scales in deep-sea sediments. The analyses of sediment samples taken from cores of the same Multi-Corer deployment, separated by ~1 m, showed differences in the community structure, indicating a distinct microbial eukaryotic diversity even at a local horizontal scale. At a vertical scale, in different sediment depth layers (upper 2 mm layer, 1 cm, 2 cm, 3 cm) of the same core, only 4–11% of OTUs were shared. We could show, that already at small spatial scales protist communities varied strongly, indicating an underestimated complexity of deep-sea microbial food webs." @default.
- W3137994989 created "2021-03-29" @default.
- W3137994989 creator A5053394325 @default.
- W3137994989 creator A5056628185 @default.
- W3137994989 creator A5070939250 @default.
- W3137994989 date "2021-05-01" @default.
- W3137994989 modified "2023-10-15" @default.
- W3137994989 title "Horizontal and vertical small-scale patterns of protist communities at the Atlantic deep-sea floor" @default.
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