World's Best Scientists 2026 revealed!
Akiyoshi Ohashi

Akiyoshi Ohashi

D-Index & Metrics

Biology and Biochemistry

D-Index
66
Citations
14299
World Ranking
8738
National Ranking
589

Akiyoshi Ohashi publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Akiyoshi Ohashi sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 223 publications — 58th percentile

58% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Akiyoshi Ohashi D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Akiyoshi Ohashi sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 66 D-Index — 57th percentile

57% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Akiyoshi Ohashi is affiliated with Hiroshima University in Japan and has conducted extensive research primarily in the fields of Environmental Science and Engineering. Their work encompasses various subfields including Pollution, Environmental Engineering, Health, Toxicology and Mutagenesis, Electrical and Electronic Engineering, and Ecology.

The scientist's research focuses on several main topics, which include:

  • Wastewater Treatment and Nitrogen Removal
  • Microbial Fuel Cells and Bioremediation
  • Water Treatment and Disinfection
  • Microbial Community Ecology and Physiology
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Marine Sponges and Natural Products

Ohashi's frequent coauthors include:

  • Tomonori Kindaichi
  • Noriatsu Ozaki
  • Yoshiteru Aoi
  • Hiromi Kambara
  • Shuji Matsushita

The scientist's publications have appeared predominantly in specific venues such as:

  • Microbes and Environments
  • Journal of Power Sources Advances
  • Water
  • Journal of Power Sources
  • Journal of Environmental Sciences

Recent papers authored or coauthored by Ohashi include:

  • "Pesticides in aquatic environments and their removal by adsorption methods," published in 2020 in Chemosphere
  • "Treatment of landfill leachate with different techniques: an overview," published in 2020 in Journal of Water Reuse and Desalination
  • "Cometabolism of the Superphylum Patescibacteria with Anammox Bacteria in a Long-Term Freshwater Anammox Column Reactor," published in 2021 in Water
  • "Metabolic Potential of the Superphylum Patescibacteria Reconstructed from Activated Sludge Samples from a Municipal Wastewater Treatment Plant," published in 2022 in Microbes and Environments
  • "High-pressure in situ X-ray computed tomography and numerical simulation of sulfide solid electrolyte," published in 2020 in Journal of Power Sources

Best Publications

  • Anaerolinea thermolimosa sp. nov., Levilinea saccharolytica gen. nov., sp. nov. and Leptolinea tardivitalis gen. nov., sp. nov., novel filamentous anaerobes, and description of the new classes Anaerolineae classis nov. and Caldilineae classis nov. in the bacterial phylum Chloroflexi.

    Takeshi Yamada;Takeshi Yamada;Yuji Sekiguchi;Yuji Sekiguchi;Satoshi Hanada;Hiroyuki Imachi

  • Comprehensive review of polycyclic aromatic hydrocarbons in water sources, their effects and treatments.

    Amin Mojiri;John L. Zhou;Akiyoshi Ohashi;Noriatsu Ozaki

  • Fluorescence in situ hybridization using 16S rRNA-targeted oligonucleotides reveals localization of methanogens and selected uncultured bacteria in mesophilic and thermophilic sludge granules

    Yuji Sekiguchi;Yoichi Kamagata;Kazunori Nakamura;Akiyoshi Ohashi

  • Bellilinea caldifistulae gen. nov., sp. nov. and Longilinea arvoryzae gen. nov., sp. nov., strictly anaerobic, filamentous bacteria of the phylum Chloroflexi isolated from methanogenic propionate-degrading consortia.

    Takeshi Yamada;Takeshi Yamada;Hiroyuki Imachi;Hiroyuki Imachi;Akiyoshi Ohashi;Hideki Harada;Hideki Harada

  • Anaerolinea thermophila gen. nov., sp. nov. and Caldilinea aerophila gen. nov., sp. nov., novel filamentous thermophiles that represent a previously uncultured lineage of the domain Bacteria at the subphylum level

    Yuji Sekiguchi;Takeshi Yamada;Satoshi Hanada;Akiyoshi Ohashi

  • Phylogenetic diversity of mesophilic and thermophilic granular sludges determined by 16s rRNA gene analysis

    Yuji Sekiguchi;Yoichi Kamagata;Kazuaki Syutsubo;Akiyoshi Ohashi

  • Ecophysiological role and function of uncultured Chloroflexi in an anammox reactor

    Tomonori Kindaichi;Shota Yuri;Noriatsu Ozaki;Akiyoshi Ohashi

  • Methanocella paludicola gen. nov., sp. nov., a methane-producing archaeon, the first isolate of the lineage 'Rice Cluster I', and proposal of the new archaeal order Methanocellales ord. nov.

    Sanae Sakai;Hiroyuki Imachi;Hiroyuki Imachi;Satoshi Hanada;Akiyoshi Ohashi;Akiyoshi Ohashi

  • Syntrophorhabdus aromaticivorans gen. nov., sp. nov., the First Cultured Anaerobe Capable of Degrading Phenol to Acetate in Obligate Syntrophic Associations with a Hydrogenotrophic Methanogen

    Yan Ling Qiu;Satoshi Hanada;Akiyoshi Ohashi;Hideki Harada

  • Diversity, Localization, and Physiological Properties of Filamentous Microbes Belonging to Chloroflexi Subphylum I in Mesophilic and Thermophilic Methanogenic Sludge Granules

    Takeshi Yamada;Takeshi Yamada;Yuji Sekiguchi;Yuji Sekiguchi;Hiroyuki Imachi;Yoichi Kamagata;Yoichi Kamagata

  • Pelotomaculum thermopropionicum gen. nov., sp. nov., an anaerobic, thermophilic, syntrophic propionate-oxidizing bacterium.

    Hiroyuki Imachi;Yuji Sekiguchi;Yoichi Kamagata;Satoshi Hanada

  • Performance comparison of a pilot-scale UASB and DHS system and activated sludge process for the treatment of municipal wastewater.

    Madan Tandukar;A. Ohashi;H. Harada

  • Methanolinea tarda gen. nov., sp. nov. a methane-producing archaeon isolated from a methanogenic digester sludge

    Hiroyuki Imachi;Sanae Sakai;Yuji Sekiguchi;Yuji Sekiguchi;Satoshi Hanada

  • Effective partial nitrification to nitrite by down-flow hanging sponge reactor under limited oxygen condition

    Hui Ping Chuang;Akiyoshi Ohashi;Hiroyuki Imachi;Madan Tandukar

  • Syntrophothermus lipocalidus gen. nov., sp. nov., a novel thermophilic, syntrophic, fatty-acid-oxidizing anaerobe which utilizes isobutyrate.

    Yuji Sekiguchi;Yoichi Kamagata;Kazunori Nakamura;Akiyoshi Ohashi

  • Non-sulfate-reducing, syntrophic bacteria affiliated with desulfotomaculum cluster I are widely distributed in methanogenic environments.

    Hiroyuki Imachi;Yuji Sekiguchi;Yuji Sekiguchi;Yoichi Kamagata;Yoichi Kamagata;Alexander Loy

  • Phylogenetic diversity and ecophysiology of Candidate phylum Saccharibacteria in activated sludge

    Tomonori Kindaichi;Tomonori Kindaichi;Shiro Yamaoka;Ryohei Uehara;Noriatsu Ozaki

  • In Situ Detection, Isolation, and Physiological Properties of a Thin Filamentous Microorganism Abundant in Methanogenic Granular Sludges: a Novel Isolate Affiliated with a Clone Cluster, the Green Non-Sulfur Bacteria, Subdivision I

    Yuji Sekiguchi;Yuji Sekiguchi;Hiroki Takahashi;Yoichi Kamagata;Akiyoshi Ohashi

  • Cultivation and In Situ Detection of a Thermophilic Bacterium Capable of Oxidizing Propionate in Syntrophic Association with Hydrogenotrophic Methanogens in a Thermophilic Methanogenic Granular Sludge

    Hiroyuki Imachi;Yuji Sekiguchi;Yoichi Kamagata;Akiyoshi Ohashi

  • Combination of a UASB reactor and a curtain type DHS (downflow hanging sponge) reactor as a cost-effective sewage treatment system for developing countries

    I. Machdar;Y. Sekiguchi;H. Sumino;A. Ohashi

Frequent Co-Authors

Hideki Harada
Hideki Harada Tohoku University
Hiroyuki Imachi
Hiroyuki Imachi Japan Agency for Marine-Earth Science and Technology
Yuji Sekiguchi
Yuji Sekiguchi National Institute of Advanced Industrial Science and Technology
Yoichi Kamagata
Yoichi Kamagata National Institute of Advanced Industrial Science and Technology
Satoshi Okabe
Satoshi Okabe Hokkaido University
John L. Zhou
John L. Zhou University of Technology Sydney
Ken Takai
Ken Takai Japan Agency for Marine-Earth Science and Technology
Philip Hugenholtz
Philip Hugenholtz University of Queensland
Ahmed Tawfik
Ahmed Tawfik Egypt-Japan University of Science and Technology
Michael Wagner
Michael Wagner University of Vienna

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