Results 11 to 20 of about 1,169,829 (142)

High mercury accumulation in deep-ocean hadal sediments [PDF]

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, Peter M. Outridge, Kazumasa Oguri, Gary A. Stern, Bo Thamdrup, Frank Wenzhöfer, Feiyue Wang, Ronnie N. Glud   +7 more
doaj   +2 more sources

Liparid and macrourid fishes of the hadal zone: in situ observations of activity and feeding behaviour [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2009
Using baited camera landers, the first images of living fishes were recorded in the hadal zone (6000–11 000 m) in the Pacific Ocean. The widespread abyssal macrourid Coryphaenoides yaquinae was observed at a new depth record of approximately 7000 m in ...
Martin Solan, Imants Priede, Toyonobu Fujii   +2 more
exaly   +3 more sources

Exploration of Carotenoid-Producing Microorganisms from the Kuril-Kamchatka Trench and Their Antioxidant Potential [PDF]

Marine Drugs
Despite its extreme conditions, the hadal environment harbors abundant but largely underexplored microbial resources. In this study, samples from the Kuril-Kamchatka Trench (KKT) were enriched at low temperature using R2A and 2216E media.
Guan-Yuan Zhang, Xue-Gong Li, Hai-Rong Fang, Jin-Wei Gao, Wei-Jia Zhang   +4 more
doaj   +2 more sources

Scientific and technological progress in the microbial exploration of the hadal zone. [PDF]

Mar Life Sci Technol, 2022
The hadal zone is the deepest point in the ocean with a depth that exceeds 6000 m. Exploration of the biological communities in hadal zone began in the 1950s (the first wave of hadal exploration) and substantial advances have been made since the turn of ...
Fan S, Wang M, Ding W, Li YX, Zhang YZ, Zhang W.   +5 more
europepmc   +2 more sources

<i>oceandatr</i>: An R Package to Acquire and Process Geospatial Ocean Data. [PDF]

Ecol Evol
We introduce the oceandatr R package, an interface that provides functions for acquiring and processing marine data sources—including bathymetry, geomorphology, ecological, and human use data—and returns these in several grid‐based formats. We outline uses of oceandatr, such as modeling and spatial analysis, and present two case studies where oceandatr
Flower J, Burns ES, Dunn DC, Estep A, Everett JD, Hanson JO, Lester SE, Richardson AJ.   +7 more
europepmc   +2 more sources

The HOG signal pathway contributes to survival strategies of the piezo-tolerant fungus Aspergillus sydowii DM1 in hadal sediments [PDF]

Applied and Environmental Microbiology
The hadal zone, one of Earth’s most extreme ecosystems, harbors diverse and unique microbial communities adapted to its harsh environmental conditions, including high hydrostatic pressure (HHP) and low temperatures.
Guangzhao Hu, Maosheng Zhong, Changhao Zhang, Hongfu Lai, Eva Breyer, Jiasong Fang, Xi Yu   +6 more
doaj   +2 more sources

In situ swimming behavior of the Mariana snailfish Pseudoliparis swirei [PDF]

Scientific Reports
The hadal zone, defined as ocean depths below 6000 m, is one of Earth’s most extreme environments. The Mariana snailfish Pseudoliparis swirei is among the deepest known fishes, yet its natural behavior remains largely unknown.
Yizi Chen, Alexandru S. Barcan, Jiushuang Zhang, Jun Li, Lisheng He, Yong Wang   +5 more
doaj   +2 more sources

Faunal biodiversity of the lower abyssal and hadal zones of the Japan, Ryukyu and Izu-Ogasawara trenches (NW Pacific Ocean; 4534-9775 m) [PDF]

Biodiversity Data Journal
In-situ video-based observations collected using multiple platforms are increasingly used for biodiversity assessments at abyssal and hadal depths, sometimes complemented by physical sampling.
Alan Jamieson, Denise Swanborn, Todd Bond, Megan Cundy, Yoshihiro Fujiwara, Dhugal Lindsay, Melanie Stott, Hiroshi Kitazato   +7 more
doaj   +4 more sources

Clear niche partitioning of nitrite-oxidizing bacteria from the bottom and the slope of Mariana Trench [PDF]

Microbiome
Background The hadal zone, characterized by extreme hydrostatic pressure and geographic isolation, hosts microbial communities uniquely adapted to these harsh conditions.
Yongxin Lv, Lizhi Zhang, Yu Zhang
doaj   +2 more sources

Microbial population structure along the water columns and sediments in the Diamantina and Kermadec trenches [PDF]

BMC Biology
Background Microbes are widespread from the marine surface to the hadal zones and play a significant role in global biogeochemical cycling. Physicochemical properties of hadal zone shift with depth, in turn influencing the distribution profiles ...
Yao Xiao, Hao Liu, Pudi Wang, Yue Zhang, Fangzhou Wang, Hongmei Jing   +5 more
doaj   +2 more sources