Results 21 to 30 of about 98 (84)

Novel Chloroflexi genomes from the deepest ocean reveal metabolic strategies for the adaptation to deep-sea habitats

Microbiome, 2022
Background The deep sea harbors the majority of the microbial biomass in the ocean and is a key site for organic matter (OM) remineralization and storage in the biosphere.
Rulong Liu, Xing Wei, Weizhi Song, Li Wang, Junwei Cao, Jiaxin Wu, Torsten Thomas, Tao Jin, Zixuan Wang, Wenxia Wei, Yuli Wei, Haofeng Zhai, Cheng Yao, Ziyi Shen, Jiangtao Du, Jiasong Fang   +15 more
doaj   +1 more source

First eumonostiliferous nemertean from the Nishi-Shichito Ridge, Genrokunemertes obesa gen. et sp. nov. (Eumonostilifera, Nemertea) [PDF]

PeerJ, 2022
Nemerteans are mostly marine, benthic invertebrates, inhabiting intertidal to hadal zones. Recently, they have been recognized from deep sea with environmental DNA (eDNA) metabarcoding of sediment samples whereas any records from the locations and/or the
Natsumi Hookabe, Keita Koeda, Yoshihiro Fujiwara, Shinji Tsuchida, Rei Ueshima   +4 more
doaj   +2 more sources

Metagenomics Reveals Microbial Diversity and Metabolic Potentials of Seawater and Surface Sediment From a Hadal Biosphere at the Yap Trench

Frontiers in Microbiology, 2018
Hadal biosphere represents the deepest part of the ocean with water depth >6,000 m. Accumulating evidence suggests the existence of unique microbial communities dominated by heterotrophic processes in this environment.
Xinxu Zhang, Wei Xu, Yang Liu, Mingwei Cai, Zhuhua Luo, Meng Li   +5 more
doaj   +1 more source

The phylogeny and metabolic potentials of an n-alkane-degrading Venatorbacter bacterium isolated from deep-sea sediment of the Mariana Trench

Frontiers in Microbiology, 2023
Recently, several reports showed that n-alkanes were abundant in the hadal zone, suggesting that n-alkanes could be an important source of nutrients for microorganisms in hadal ecosystems.
Jiahua Wang, Yan Zhang, Yan Zhang, Ying Liu, Zhe Xie, Zhe Xie, Junwei Cao, Hongcai Zhang, Jie Liu, Tianqiang Bao, Congwen Sun, Bilin Liu, Yuli Wei, Jiasong Fang, Jiasong Fang   +14 more
doaj   +1 more source

Metabolically diverse microorganisms mediating hydrocarbon cycling in the subseafloor sediment of the Challenger Deep

mBio
Hadal subseafloor sediments host abundant and active microbial biosphere with considerable heterotrophic activity. However, carbon and nutrient cycling processes and mechanisms driven by hadal subsurface microorganisms remain poorly understood.
Xinxin He, Jiwen Liu, Haojin Cheng, Xiaoyu Zhu, Heyu Lin, Da-Wei Li, Yizi Yang, Ronghua Liu, Derui Song, Yanfen Zheng, David J. Lea‑Smith, Nikolai Pedentchouk, Jonathan D. Todd, Meixun Zhao, Xiao-Hua Zhang   +14 more
doaj   +1 more source

Discovery and Fine‐Scale Mapping of Hadal Xenophyophore Habitat in the Nova Canton Trough, Central Pacific Ocean

Remote Sensing in Ecology and Conservation, EarlyView.
Discovery and fine‐scale mapping of a hadal xenophyophore field: submersible video transects and photogrammetry enable semi‐automated delineation of xenophyophores, revealing their abundance, spatial organisation, structural complexity and contribution to habitat heterogeneity at ~8000 m depth.
Denise J. B. Swanborn, Joana Gafeira, Megan Cundy, Daniel C. Bates, Heather A. Stewart, Alan J. Jamieson   +5 more
wiley   +1 more source

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

Integrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez, Santiago Hernández Del Pino, Esperanza Cerdeño, Manuel Hernández Fernández, Laura Domingo   +4 more
wiley   +1 more source

Adaptation to extreme environments: A review of Antarctic fish physiology

Journal of Fish Biology, EarlyView.
Abstract Having evolved in the chronically cold and thermally stable waters of the Southern Ocean (SO) for millions of years, Antarctic fish possess a suite of physiological specializations that enable them to survive at temperatures near the freezing point of seawater. Adaptations include the evolution of antifreeze proteins, modifications of membrane
Seungyeon Lee, Sachithra Amarin Hettiarachchi, Il‐Chan Kim, Jae‐Seong Lee, Thomas Desvignes, Julia M. York, Laura Ghigliotti, Jilda Alicia Caccavo, Jin‐Hyoung Kim   +8 more
wiley   +1 more source

DeepZoo: A cost‐effective and modular sampler for ecological studies in the deep ocean

Methods in Ecology and Evolution, Volume 17, Issue 10, Page 2895-2908, October 2026.
Abstract Understanding the structure and dynamics of deep‐ocean communities requires effective sampling of pelagic organisms in near‐bottom waters. These dispersive organisms contribute to biodiversity, connectivity and ecosystem recovery. Yet, current sampling methods remain constrained by size, cost, and depth, leaving key questions unanswered in ...
Johanna N. J. Weston, Casey Machado, Brian Kelly, Benjamin S. Weiss, Taylor P. Heyl, Daniel Lauretta, Lauren S. Mullineaux, Kirstin S. Meyer‐Kaiser   +7 more
wiley   +1 more source

Organic carbon sources, transport, and mineralization in Kermadec Trench sediments

Frontiers in Marine Science
Hadal trenches are critical hotspots for organic carbon (OC) deposition and diagenesis, yet the mechanisms controlling carbon sequestration, particularly the role of episodic tectonic and volcanic events, remain poorly constrained.
Shuo Bai, Hengchao Xu, Shuangquan Liu, Liang Dong, Zijun Wu   +4 more
doaj   +1 more source