World's Best Scientists 2026 revealed!
Katsutoshi Arai

Katsutoshi Arai

D-Index & Metrics

Biology and Biochemistry

D-Index
46
Citations
7384
World Ranking
18959
National Ranking
1364

Katsutoshi Arai 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 Katsutoshi Arai 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: 251 publications — 67th percentile

67% of scientists in this discipline score the same or lower.

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

Katsutoshi Arai 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 Katsutoshi Arai 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: 46 D-Index — 4th percentile

4% of scientists in this discipline score the same or lower.

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

Overview

Katsutoshi Arai is affiliated with Hokkaido University in Japan. The research is primarily situated within the fields of Biochemistry, Genetics and Molecular Biology, and Environmental Science. Their work is further specialized in subfields including Physiology, Genetics, Nature and Landscape Conservation, Aquatic Science, and Molecular Biology.

The scientist's research topics cover diverse areas related to aquatic species, genetics, and reproduction, including:

  • Reproductive biology and impacts on aquatic species
  • Fish Ecology and Management Studies
  • Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
  • Animal Genetics and Reproduction
  • Aquaculture Nutrition and Growth
  • Fish Biology and Ecology Studies
  • Marine and fisheries research

The researcher has contributed to multiple publications in various venues, with frequent appearances in:

  • Aquaculture
  • Fisheries Science
  • NIPPON SUISAN GAKKAISHI
  • Cytogenetic and Genome Research
  • Hokkaido University Collection of Scholarly and Academic Papers (Hokkaido University)

Among the recent papers associated with this scientist are:

  • "Control of Developmental Speed in Zebrafish Embryos Using Different Incubation Temperatures," 2021, Zebrafish
  • "Meiosis and gametogenesis in hybrid, polyploid, and clonal fishes: case studies in the dojo loach Misgurnus anguillicaudatus," 2023, Fisheries Science
  • "Cold-shock androgenesis in common carp (Cyprinus carpio)," 2021, Aquaculture
  • "Hybrid between Danio rerio female and Danio nigrofasciatus male produces aneuploid sperm with limited fertilization capacity," 2020, PLoS ONE
  • "Cryopreservation of masu salmon sperm using glucose-methanol extender and seminal plasma biomarkers related to post-thaw sperm motility," 2022, Aquaculture

Katsutoshi Arai has collaborated frequently with several researchers, including:

  • Takafumi Fujimoto
  • Etsuro Yamaha
  • Kiko Shibata
  • Eisuke Takahashi
  • Mitsuru Endoh

Best Publications

  • Genetic improvement of aquaculture finfish species by chromosome manipulation techniques in Japan.

    Katsutoshi Arai

  • Xenogenesis in Teleost Fish Through Generation of Germ-Line Chimeras by Single Primordial Germ Cell Transplantation

    Taiju Saito;Rie Goto-Kazeto;Katsutoshi Arai;Etsuro Yamaha

  • Sexual dimorphism of gonadal structure and gene expression in germ cell-deficient loach, a teleost fish

    Takafumi Fujimoto;Toshiya Nishimura;Rie Goto-Kazeto;Yutaka Kawakami

  • Early Depletion of Primordial Germ Cells in Zebrafish Promotes Testis Formation

    Keh-Weei Tzung;Rie Goto;Jolly M. Saju;Rajini Sreenivasan

  • Germ cells are not the primary factor for sexual fate determination in goldfish

    Rie Goto;Taiju Saito;Takahiro Takeda;Takafumi Fujimoto

  • Visualization of primordial germ cells in vivo using GFP-nos1 3'UTR mRNA

    Taiju Saito;Takafumi Fujimoto;Shingo Maegawa;Kunio Inoue

  • Premeiotic endomitosis produces diploid eggs in the natural clone loach, Misgurnus anguillicaudatus (Teleostei: Cobitidae).

    Masaki Itono;Kagayaki Morishima;Takafumi Fujimoto;Etsuko Bando

  • Sex ratios of triploids and gynogenetic diploids induced in the hybrid sturgeon, the bester (Huso huso female×Acipenser ruthenus male)

    Naotaka Omoto;Mamoru Maebayashi;Shinji Adachi;Katsutoshi Arai

  • Developmental stages and germ cell lineage of the loach (Misgurnus anguillicaudatus)

    Takafumi Fujimoto;Takashi Kataoka;Suzu Sakao;Taiju Saito

  • Production of polyploids and viable gynogens using spontaneously occurring tetraploid loach, Misgurnus anguillicaudatus

    Katsutoshi Arai;Kumi Matsubara;Ryo Suzuki

  • A Cryptic Clonal Line of the Loach Misgurnus anguillicaudatus (Teleostei: Cobitidae) Evidenced by Induced Gynogenesis, Interspecific Hybridization, Microsatellite Genotyping and Multilocus DNA Fingerprinting

    Kagayaki Morishima;Shin Horie;Etsuro Yamaha;Katsutoshi Arai

  • Distribution and reproductive capacity of natural triploid individuals and occurrence of unreduced eggs as a cause of polyploidization in the loach, Misgurnus anguillicaudatus

    Quanqi Zhang;Katsutoshi Arai

  • Cytogenetic mechanisms for triploid and haploid egg formation in the triploid loach Misgurnus anguillicaudatus

    Quanqi Zhang;Katsutoshi Arai;Masakane Yamashita

  • Cryptic clonal lineages and genetic diversity in the loach Misgurnus anguillicaudatus (Teleostei: Cobitidae) inferred from nuclear and mitochondrial DNA analyses.

    Kagayaki Morishima;Kagayaki Morishima;Yuka Nakamura-Shiokawa;Etsuko Bando;Ya-Juan Li

  • Production of androgenetic diploid loach Misgurnus anguillicaudatus using spermatozoa of natural tetraploids

    Katsutoshi Arai;Masayuki Ikeno;Ryo Suzuki

  • Karyotype and erythrocyte size of spontaneous tetraploidy and triploidy in the loach Misgurnus anguillicaudatus

    Katsutoshi Arai;Kumi Matsubara;Ryo Suzuki

  • Inter-species transplantation and migration of primordial germ cells in cyprinid fish.

    Taiju Saito;Rie Goto-Kazeto;Takafumi Fujimoto;Yutaka Kawakami

  • The origin and migration of primordial germ cells in sturgeons.

    Taiju Saito;Martin Pšenička;Rie Goto;Shinji Adachi

  • Microsatellite-centromere mapping in the loach, Misgurnus anguillicaudatus.

    K. Morishima;I. Nakayama;K. Arai

  • Developmental biotechnology for aquaculture, with special reference to surrogate production in teleost fishes

    Etsuro Yamaha;Taiju Saito;Rie Goto-Kazeto;Katsutoshi Arai

Frequent Co-Authors

Andrzej Ciereszko
Andrzej Ciereszko Polish Academy of Sciences
Yutaka Kawakami
Yutaka Kawakami International University Of Health And Welfare Atami Hospital
Goro Yoshizaki
Goro Yoshizaki Tokyo University of Marine Science and Technology
Hideki Tanaka
Hideki Tanaka Okayama University
Yuan Gao
Yuan Gao Northeastern University
Ryuzo Yanagimachi
Ryuzo Yanagimachi University of Hawaii at Manoa
Gary N. Cherr
Gary N. Cherr University of California, Davis
Toyoji Kaneko
Toyoji Kaneko University of Tokyo
Wei Yan
Wei Yan University of Nevada Reno

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