Results 41 to 50 of about 525 (166)
Scientific Reports, 2022 Hadal trenches are depocenters for organic material, and host intensified benthic microbial activity. The enhanced deposition is presumed to be reflected in elevated meiofaunal standing-stock, but available studies are ambiguous. Here, we investigate the
M. Shimabukuro +6 more
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Microbiology Spectrum, 2023 Viruses play crucial roles in the ecosystem by modulating the host community structure, mediating biogeochemical cycles, and compensating for the metabolism of host cells.
Yue Su +15 more
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Spatial variations of microbial communities in abyssal and hadal sediments across the Challenger Deep [PDF]
PeerJ, 2019 Microbial communities in hadal sediments are least explored in hadal zone (>6,000 m), especially in the Challenger Deep with high pressure (∼110 M pa at the bottom).
Guojie Cui +3 more
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Hadal disturbance in the Japan Trench induced by the 2011 Tohoku–Oki Earthquake [PDF]
Scientific Reports, 2013 In situ video observations and sediment core samplings were performed at two hadal sites in the Japan Trench on July, 2011, four months after the Tohoku-Oki earthquake. Video recordings documented dense nepheloid layers extending ~30-50 m above the sea bed. At the trench axis, benthic macrofauna was absent and dead organisms along with turbid downslope
Oguri, K. +8 more
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Vertically distinct microbial communities in the Mariana and Kermadec trenches. [PDF]
PLoS ONE, 2018 Hadal trenches, oceanic locations deeper than 6,000 m, are thought to have distinct microbial communities compared to those at shallower depths due to high hydrostatic pressures, topographical funneling of organic matter, and biogeographical isolation ...
Logan M Peoples +8 more
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Habitat heterogeneity of hadal trenches: Considerations and implications for future studies
Progress in Oceanography, 2018 Abstract The hadal zone largely comprises a series of subduction trenches that do not form part of the continental shelf-slope rise to abyssal plain continuum. Instead they form geographically isolated clusters of deep-sea (6000–11,000 m water depth) environments.
Stewart HA, Jamieson AJ
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A Deep Dive into Organic Carbon Distribution in Hadal Trenches
Eos, 2021 Researchers use sediment cores to study the amount and origin of sediment organic carbon in one of the least studied regions of the planet: hadal trenches.
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Frontiers in Microbiology, 2016 The Japan Trench is located under the eutrophic Northwestern Pacific while the Mariana Trench that harbors the unique hadal planktonic biosphere is located under the oligotrophic Pacific. Water samples from the sea surface to just above the seafloor at a
Takuro Nunoura +11 more
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Bulk and Active Sediment Prokaryotic Communities in the Mariana and Mussau Trenches
Frontiers in Microbiology, 2020 Surprisingly high rates of microbial respiration have recently been reported in hadal trench sediment, yet the potentially active microorganisms and specific microbe–microbe relationships in trench sediment are largely unknown.
Rulong Liu +11 more
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High mercury accumulation in deep-ocean hadal sediments
Scientific Reports, 2021 Ocean sediments are the largest sink for mercury (Hg) sequestration and hence an important part of the global Hg cycle1. Yet accepted global average Hg flux data for deep-ocean sediments (> 200 m depth) are not based on measurements on sediments but are ...
Hamed Sanei +7 more
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