In situ observations of trophic behaviour and locomotion of Princaxelia amphipods (Crustacea, Pardaliscidae) at hadal depths in four West Pacific Trenches [PDF]
, 2012 Peer reviewedPublisher ...
Alan J. Jamieson +13 more
core +1 more source
Sediment Accumulation and Carbon Burial in Four Hadal Trench Systems
Journal of Geophysical Research: Biogeosciences, 2022 AbstractHadal trenches are considered to act as depocenters for organic material, although pathways for the material transport and deposition rates are poorly constrained. Here we assess focusing, deposition and accumulation of material and organic carbon in four hadal trench systems underlying different surface ocean productivities; the eutrophic ...
Kazumasa Oguri +8 more
openaire +8 more sources
Distribution, composition and functions of gelatinous tissues in deep-sea fishes [PDF]
Royal Society Open Science, 2017 Many deep-sea fishes have a gelatinous layer, or subdermal extracellular matrix, below the skin or around the spine. We document the distribution of gelatinous tissues across fish families (approx.
Mackenzie E. Gerringer +5 more
doaj +1 more source
Biodiversity's big wet secret: the global distribution of marine biological records reveals chronic under-exploration of the deep pelagic ocean [PDF]
, 2010 Background: Understanding the distribution of marine biodiversity is a crucial first step towards the effective and sustainable management of marine ecosystems. Recent efforts to collate location records from marine surveys enable us to assemble a global
Edward Vanden Berghe +3 more
core +5 more sources
Genomic Characterization of a Novel Gut Symbiont From the Hadal Snailfish
Frontiers in Microbiology, 2020 Hadal trenches are characterized by not only high hydrostatic pressure but also scarcity of nutrients and high diversity of viruses. Snailfishes, as the dominant vertebrates, play an important role in hadal ecology.
Chun-Ang Lian +8 more
doaj +1 more source
Expansion of Thaumarchaeota habitat range is correlated with horizontal transfer of ATPase operons. [PDF]
, 2019 Thaumarchaeota are responsible for a significant fraction of ammonia oxidation in the oceans and in soils that range from alkaline to acidic. However, the adaptive mechanisms underpinning their habitat expansion remain poorly understood.
Bartlett, Douglas H +24 more
core +2 more sources
Polysaccharide hydrolase of the hadal zone amphipods Hirondellea gigas [PDF]
Bioscience, Biotechnology, and Biochemistry, 2018 Abstract Hirondellea species are common inhabitants in the hadal region deeper than 7,000 m. We found that Hirondellea gigas thrived in the Challenger Deep possessed polysaccharide hydrolases as digestive enzymes. To obtain various enzymes of other H. gigas, we captured amphipods from the Japan Trench, and Izu-Ogasawara (Bonin) Trench. A
Kobayashi, Hideki +12 more
openaire +2 more sources
The effects of depth, distance, and the Mid-Atlantic Ridge on genetic differentiation of abyssal and hadal isopods (Macrostylidae) [PDF]
, 2018 The largest habitat on Earth, the abyssal oceans below 3500 m depth, is commonly assumed to represent a continuous environment due to homogeneity of environmental factors and the lack of physical barriers.
Brandt, Angelika +2 more
core +1 more source
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 +8 more
doaj +1 more source
Microbiomes of Hadal Fishes across Trench Habitats Contain Similar Taxa and Known Piezophiles
mSphere, 2022 Hadal snailfishes are the deepest-living fishes in the ocean, inhabiting trenches from depths of ∼6,000 to 8,000 m. While the microbial communities in trench environments have begun to be characterized, the microbes associated with hadal megafauna remain
Jessica M. Blanton +9 more
doaj +1 more source