Results 21 to 30 of about 54,376 (146)

High Carbon Mineralization Rates in Subseafloor Hadal Sediments—Result of Frequent Mass Wasting

Geochemistry, Geophysics, Geosystems, 2022
In the past 20 years, the exploration of deep ocean trenches has led to spectacular new insights. Even in the deepest canyons, an unusual variety of life and unexpectedly high benthic oxygen consumption rates have been detected while microbial processes ...
M. Zabel, R. N. Glud, H. Sanei, M. Elvert, T. Pape, P.‐C. Chuang, E. Okuma, P. Geprägs, M. Kölling   +8 more
doaj   +1 more source

Pseudoliparis swirei sp. nov.: A newly-discovered hadal snailfish (Scorpaeniformes: Liparidae) from the Mariana Trench [PDF]

Pseudoliparis swirei sp. nov. is described from 37 individuals collected in the Mariana Trench at depths 6898–7966 m. The collection of this new species is the deepest benthic capture of a vertebrate with corroborated depth data.
Jamieson AJ, Drazen JC, Linley TD, Gerringer ME, Goetze E   +4 more
core   +4 more sources

High hydrostatic pressure shapes the development and production of secondary metabolites of Mariana Trench sediment fungi

Scientific Reports, 2021
The hadal biosphere is one of the least understood ecosystems on our planet. Recent studies have revealed diverse and active communities of prokaryotes in hadal sediment. However, there have been few studies on fungi in hadal sediment. Here we report the
Qingqing Peng, Yongqi Li, Ludan Deng, Jiasong Fang, Xi Yu   +4 more
doaj   +1 more source

Sedimentary supply of humic-like fluorescent dissolved organic matter and its implication for chemoautotrophic microbial activity in the Izu-Ogasawara Trench

Scientific Reports, 2021
Microbial community structure in the hadal water is reported to be different from that in the upper abyssal water. However, the mechanism governing the difference has not been fully understood.
M. Shigemitsu, T. Yokokawa, H. Uchida, S. Kawagucci, A. Murata   +4 more
doaj   +1 more source

The Multi-Ocean Distribution of the Hadal Amphipod, Hirondellea dubiaDahl, 1959 (Crustacea, Amphipoda)

Frontiers in Marine Science, 2022
The hadal zone (depths > 6,000 m) comprises isolated features that host high degrees of endemism, with species inhabiting only a single feature or a group of adjacent features.
Johanna N. J. Weston, Alan J. Jamieson
doaj   +1 more source

Event Stratigraphy in a Hadal Oceanic Trench: The Japan Trench as Sedimentary Archive Recording Recurrent Giant Subduction Zone Earthquakes and Their Role in Organic Carbon Export to the Deep Sea

Frontiers in Earth Science, 2019
Hadal trenches are the deepest places on Earth and are important foci for natural carbon sequestration. Much of the sedimentary sequences that accumulate within hadal trenches have been linked to widespread slope sediment remobilization events, triggered
Arata Kioka, Arata Kioka, Tobias Schwestermann, Jasper Moernaut, Ken Ikehara, Toshiya Kanamatsu, Timothy I. Eglinton, Michael Strasser, Michael Strasser   +8 more
doaj   +1 more source

Insights into the prokaryotic communities of the abyssal-hadal benthic-boundary layer of the Kuril Kamchatka Trench

Environmental Microbiome, 2023
Background The Kuril–Kamchatka Trench (maximum depth 9604 m), located in the NW Pacific Ocean, is among the top seven deepest hadal trenches. The work aimed to investigate the unexplored abyssal-hadal prokaryotic communities of this fascinating, but ...
Susanna Gorrasi, Andrea Franzetti, Angelika Brandt, Ulrike Minzlaff, Marcella Pasqualetti, Massimiliano Fenice   +5 more
doaj   +1 more source

Functional effects of the hadal sea cucumber Elpidia atakama (Echinodermata: Holothuroidea, Elasipodida) reflect small-scale patterns of resource availability [PDF]

, 2011
Holothuroidea represent the dominant benthic megafauna in hadal trenches (similar to 6,000-11,000 m), but little is known about their behaviour and functional role at such depths.
Gebruk, A., Fujii, T., A. Gebruk, Jamieson, A.J., M. Solan, T. Fujii, Solan, M., A. J. Jamieson   +7 more
core   +1 more source

In situ observations of trophic behaviour and locomotion of Princaxelia amphipods (Crustacea, Pardaliscidae) at hadal depths in four West Pacific Trenches [PDF]

, 2011
Peer ...
Fujii, Toyonobu, Priede, Imants George, Jamieson, Alan John, Toyonobu Fujii, Anne-Nina Lörz, Loerz, Anne-Nina, Alan J. Jamieson, Imants G. Priede   +7 more
core   +1 more source

Trimethylamine N-Oxide (TMAO) and Trimethylamine (TMA) Determinations of Two Hadal Amphipods

Journal of Marine Science and Engineering, 2022
Hadal trenches are a unique habitat with high hydrostatic pressure, low temperature and scarce food supplies. Amphipods are the dominant scavenging metazoan species in this ecosystem.
Qi Liu, Shouwen Jiang, Wenhao Li, Binbin Pan, Qianghua Xu   +4 more
doaj   +1 more source