World's Best Scientists 2026 revealed!
Manabu Ishikawa

Manabu Ishikawa

D-Index & Metrics

Biology and Biochemistry

D-Index
52
Citations
8160
World Ranking
16836
National Ranking
1211

Manabu Ishikawa 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 Manabu Ishikawa 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: 177 publications — 40th percentile

40% of scientists in this discipline score the same or lower.

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

Manabu Ishikawa 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 Manabu Ishikawa 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: 52 D-Index — 16th percentile

16% of scientists in this discipline score the same or lower.

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

Overview

Manabu Ishikawa is affiliated with Kagoshima University in Japan and has contributed extensively to research in the fields of Agricultural and Biological Sciences and Medicine. Their work spans several subfields, notably Aquatic Science, Immunology, Surgery, Physiology, and Global and Planetary Change.

The primary topics covered in Ishikawa's research include:

  • Aquaculture Nutrition and Growth
  • Aquaculture disease management and microbiota
  • Aquatic life and conservation
  • Reproductive biology and impacts on aquatic species
  • Marine Bivalve and Aquaculture Studies
  • Marine and fisheries research
  • Esophageal and GI Pathology

They have published frequently in specialist venues, with a concentration in:

  • Aquaculture Nutrition
  • Aquaculture
  • Aquaculture Reports
  • Annals of Animal Science
  • Animals

Some of the recent papers authored or coauthored by Ishikawa include:

  • Optimization of Soybean Meal Fermentation for Aqua-Feed with Bacillus subtilis natto Using the Response Surface Methodology, 2021, Fermentation
  • Effects of phosphorous deficiency of a microalga Nannochloropsis oculata on its fatty acid profiles and intracellular structure and the effectiveness in rotifer nutrition, 2020, Algal Research
  • Singular effects of Bacillus subtilis C-3102 or Saccharomyces cerevisiae type 1 on the growth, gut morphology, immunity, and stress resistance of red sea bream (Pagrus major), 2020, Annals of Animal Science
  • Effect of Substituting Fish Oil with Camelina Oil on Growth Performance, Fatty Acid Profile, Digestibility, Liver Histology, and Antioxidative Status of Red Seabream (Pagrus major), 2021, Animals
  • Growth Performance, Growth-Related Genes, Digestibility, Digestive Enzyme Activity, Immune and Stress Responses of de novo Camelina Meal in Diets of Red Seabream (Pagrus major), 2021, Animals

Their research collaborations often include frequent coauthors such as:

  • Shunsuke Koshio
  • Saichiro Yokoyama
  • Tomonari Kotani
  • Yukun Zhang
  • Serge Dossou

Best Publications

  • Supplemental effects of some crude ingredients in improving nutritive values of low fishmeal diets for red sea bream, Pagrus major

    Md. Abdul Kader;Shunsuke Koshio;Manabu Ishikawa;Saichiro Yokoyama

  • Effects of dietary supplementation of Lactobacillus rhamnosus or/and Lactococcus lactis on the growth, gut microbiota and immune responses of red sea bream, Pagrus major.

    Mahmoud A.O. Dawood;Mahmoud A.O. Dawood;Shunsuke Koshio;Manabu Ishikawa;Saichiro Yokoyama

  • Interaction effects of dietary supplementation of heat-killed Lactobacillus plantarum and β-glucan on growth performance, digestibility and immune response of juvenile red sea bream, Pagrus major.

    Mahmoud A.O. Dawood;Mahmoud A.O. Dawood;Shunsuke Koshio;Manabu Ishikawa;Saichiro Yokoyama

  • Effect of complete replacement of fishmeal by dehulled soybean meal with crude attractants supplementation in diets for red sea bream, Pagrus major

    Md. Abdul Kader;Mahbuba Bulbul;Shunsuke Koshio;Manabu Ishikawa

  • Arginine requirement of juvenile Japanese flounder Paralichthys olivaceus estimated by growth and biochemical parameters

    Md.Shah Alam;Shin-ichi Teshima;Shunsuke Koshio;Manabu Ishikawa

  • Effects of heat killed Lactobacillus plantarum (LP20) supplemental diets on growth performance, stress resistance and immune response of red sea bream, Pagrus major

    Mahmoud A.O. Dawood;Mahmoud A.O. Dawood;Shunsuke Koshio;Manabu Ishikawa;Saichiro Yokoyama

  • Effects of partial substitution of fish meal by soybean meal with or without heat-killed Lactobacillus plantarum (LP20) on growth performance, digestibility, and immune response of amberjack, Seriola dumerili juveniles.

    Mahmoud A. O. Dawood;Shunsuke Koshio;Manabu Ishikawa;Saichiro Yokoyama

  • Dietary supplementation of β-glucan improves growth performance, the innate immune response and stress resistance of red sea bream, Pagrus major

    M.A.O. Dawood;S. Koshio;M. Ishikawa;S. Yokoyama

  • Can fermented soybean meal and squid by-product blend be used as fishmeal replacements for Japanese flounder (Paralichthys olivaceus)?

    Md. Abdul Kader;Shunsuke Koshio;Manabu Ishikawa;Saichiro Yokoyama

  • Effect of partial replacement of fish meal by fermented rapeseed meal on growth, immune response and oxidative condition of red sea bream juvenile, Pagrus major

    Serge Dossou;Serge Dossou;Shunsuke Koshio;Manabu Ishikawa;Saichiro Yokoyama

  • Effect of different levels of dietary copper nanoparticles and copper sulfate on growth performance, blood biochemical profiles, antioxidant status and immune response of red sea bream (Pagrus major)

    Mohammed Fouad El Basuini;Mohammed Fouad El Basuini;Abdelaziz Mohammed El-Hais;Mahmoud A.O. Dawood;Mahmoud A.O. Dawood;Adel El-Sayed Abou-Zeid

  • Effects of dietary oxidized fish oil with vitamin E supplementation on growth performance and reduction of lipid peroxidation in tissues and blood of red sea bream Pagrus major

    Jian Gao;Shunsuke Koshio;Manabu Ishikawa;Saichiro Yokoyama

  • Supplemental effects of coated methionine and/or lysine to soy protein isolate diet for juvenile kuruma shrimp, Marsupenaeus japonicus

    Alam;S. Teshima;S. Koshio;M. Ishikawa

  • Probiotics as an environment-friendly approach to enhance red sea bream, Pagrus major growth, immune response and oxidative status.

    Mahmoud A.O. Dawood;Mahmoud A.O. Dawood;Shunsuke Koshio;Manabu Ishikawa;Mabrouk El-Sabagh

  • Interactive effects of vitamin C and E supplementation on growth performance, fatty acid composition and reduction of oxidative stress in juvenile Japanese flounder Paralichthys olivaceus fed dietary oxidized fish oil

    Jian Gao;Shunsuke Koshio;Manabu Ishikawa;Saichiro Yokoyama

  • Growth performance, blood health, antioxidant status and immune response in red sea bream (Pagrus major) fed Aspergillus oryzae fermented rapeseed meal (RM-Koji).

    Serge Dossou;Shunsuke Koshio;Manabu Ishikawa;Saichiro Yokoyama

  • Effects of supplementation of coated crystalline amino acids on growth performance and body composition of juvenile kuruma shrimp Marsupenaeus japonicus

    M.S. Alam;S. Teshima;S. Koshio;M. Ishikawa

  • Bacillus subtilis as probiotic candidate for red sea bream: Growth performance, oxidative status, and immune response traits.

    Amr I. Zaineldin;Sayed Hegazi;Shunsuke Koshio;Manabu Ishikawa

  • Methionine Requirement of Juvenile Japanese Flounder Paralichthys olivaceus

    Md. Shah Alam;Shin-Ichi Teshima;Manabu Ishikawa;Shunsuke Koshio

  • Assessment of requirement values for essential amino acids in the prawn, Marsupenaeus japonicus (Bate)

    S Teshima;M S Alam;S Koshio;M Ishikawa

Frequent Co-Authors

Shunsuke Koshio
Shunsuke Koshio Kagoshima University
Shin-ichi Teshima
Shin-ichi Teshima Kagoshima University
Mahmoud A.O. Dawood
Mahmoud A.O. Dawood Kafrelsheikh University
Akio Kanazawa
Akio Kanazawa Kagoshima University
M. Ángeles Esteban
M. Ángeles Esteban University of Murcia

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