Search Results - "Kitahashi, Tomo"
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Characterization of microplastics on filter substrates based on hyperspectral imaging: Laboratory assessments
Published in Environmental pollution (1987) (01-08-2020)“…Microplastic pollution has become an urgent issue because it adversely affects ecosystems. However, efficient methods to detect and characterize microplastic…”
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Microbial community and geochemical analyses of trans-trench sediments for understanding the roles of hadal environments
Published in The ISME Journal (01-03-2020)“…Hadal trench bottom (>6000 m below sea level) sediments harbor higher microbial cell abundance compared with adjacent abyssal plain sediments. This is…”
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3
A new small device made of glass for separating microplastics from marine and freshwater sediments
Published in PeerJ (San Francisco, CA) (21-10-2019)“…Separating microplastics from marine and freshwater sediments is challenging, but necessary to determine their distribution, mass, and ecological impacts in…”
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Sedimentary features of Onagawa Bay, northeastern Japan after the 2011 off the Pacific coast of Tohoku Earthquake: sediment mixing by recolonized benthic animals decreases the preservation potential of tsunami deposits
Published in Journal of oceanography (01-02-2016)“…The huge tsunami waves induced by the 2011 off the Pacific coast of Tohoku Earthquake severely affected shallow marine ecosystems along the Pacific coast of…”
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5
Assemblages gradually change from bathyal to hadal depth: A case study on harpacticoid copepods around the Kuril Trench (north-west Pacific Ocean)
Published in Deep-sea research. Part I, Oceanographic research papers (01-04-2013)“…We investigated the genus diversity and community composition of harpacticoid copepods and their relationship with environmental factors around the Kuril…”
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Massive occurrence of benthic plastic debris at the abyssal seafloor beneath the Kuroshio Extension, the North West Pacific
Published in Marine pollution bulletin (01-05-2021)“…The abyss (3500–6500 m) covers the bulk of the deep ocean floor yet little is known about the extent of plastic debris on the abyssal seafloor. Using video…”
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High resilience of harpacticoid copepods in the landward slope of the Japan Trench against disturbance of the 2011 Tohoku Earthquake
Published in Limnology and oceanography (01-11-2018)“…On 11 March 2011, an earthquake of magnitude Mw 9.0 known as “the 2011 off the Pacific coast of Tohoku Earthquake” occurred off the coast of Miyagi Prefecture…”
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First insight of bathymetric patterns among deep-sea harpacticoid diversity and composition on landward slopes of subduction zones along the Japanese island arc
Published in Journal of oceanography (01-12-2019)“…Universal classification schemes have been proposed for the vertical zonation of sessile benthos on intertidal rocky shores; however, generalized patterns…”
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Abyssal fauna, benthic microbes, and organic matter quality across a range of trophic conditions in the western Pacific ocean
Published in Progress in oceanography (01-07-2021)“…•Abyssal Pacific sediments were characterized both geochemically and ecologically.•Carbon fluxes affected abundance and biomass of large organisms most…”
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Effects of mass sedimentation events after the 2011 off the Pacific coast of Tohoku Earthquake on benthic prokaryotes and meiofauna inhabiting the upper bathyal sediments
Published in Journal of oceanography (01-02-2016)“…We examined the effects of mass sedimentation events caused by the 2011 off the Pacific coast of Tohoku Earthquake on abundances and vertical distributions of…”
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Effect of the 2011 Tohoku Earthquake on deep-sea meiofaunal assemblages inhabiting the landward slope of the Japan Trench
Published in Marine geology (01-12-2014)“…Meiofaunal assemblages inhabiting the landward slope of the Japan Trench (water depth, 120–5600m) were examined 4.5months and 1.5years after the 2011 Tohoku…”
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Meiofaunal communities in hydrothermal vent and proximate non-vent habitats around neighboring seamounts on the Izu-Ogasawara Arc, western North Pacific Ocean
Published in Marine biology (01-09-2017)“…The present study investigated spatiotemporal variations in meiofaunal abundance and composition at high taxonomic levels, and their associations with certain…”
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Optimization of a hyperspectral imaging system for rapid detection of microplastics down to 100 µm
Published in MethodsX (01-01-2021)“…Plastic pollution has become one of the most emergent issues threating aquatic and terrestrial ecosystems. However, it is still challenging to rapidly detect…”
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Sex ratio of Stygiopontius senokuchiae (Dirivultidae, Copepoda), an endemic copepod species at deep hydrothermal vent sites, is biased to males
Published in Journal of oceanography (01-10-2020)“…Stygiopontius copepods (Dirivultidae, Siphonostomatoida, Crustacea) are among the most successful meiobenthic organisms at deep-sea hydrothermal vents. Most of…”
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Sediment sampling with a core sampler equipped with aluminum tubes and an onboard processing protocol to avoid plastic contamination
Published in MethodsX (01-01-2019)“…[Display omitted] Microplastics are abundant even on the deep-sea floor far from land and the ocean surface where human activities take place. To obtain…”
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Intracellular Isotope Localization in Ammonia sp. (Foraminifera) of Oxygen-Depleted Environments: Results of Nitrate and Sulfate Labeling Experiments
Published in Frontiers in microbiology (19-02-2016)“…Some benthic foraminiferal species are reportedly capable of nitrate storage and denitrification, however, little is known about nitrate incorporation and…”
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Plastic After an Extreme Storm: The Typhoon-Induced Response of Micro- and Mesoplastics in Coastal Waters
Published in Frontiers in Marine Science (13-01-2022)“…Extreme storms, such as tropical cyclones, are responsible for a significant portion of the plastic debris transported from land to sea yet little is known…”
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A small, stainless-steel sieve optimized for laboratory beaker-based extraction of microplastics from environmental samples
Published in MethodsX (01-01-2019)“…[Display omitted] Removing non-plastic materials is a mandatory process for studying microplastics in environmental samples, and non-plastic materials, both…”
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Nematode community composition in hydrothermal vent and adjacent non-vent fields around Myojin Knoll, a seamount on the Izu-Ogasawara Arc in the western North Pacific Ocean
Published in Marine biology (01-08-2014)“…In contrast to specific large benthic invertebrates in chemosynthetic ecosystems such as hydrothermal vents, meiofaunal communities in such habitats have been…”
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Deep-sea meiofauna off the Pacific coast of Tohoku and other trench slopes around Japan: a comparative study before and after the 2011 off the Pacific coast of Tohoku Earthquake
Published in Journal of oceanography (01-02-2016)“…We compared meiofaunal assemblages obtained from the landward slope of the Japan Trench off the Sanriku region of Honshu Island before the 2011 off the Pacific…”
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