World's Best Scientists 2026 revealed!

D-Index & Metrics

Biology and Biochemistry

D-Index
76
Citations
17084
World Ranking
5137
National Ranking
19

Rolf Erik Olsen 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 Rolf Erik Olsen 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: 231 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

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

Rolf Erik Olsen 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 Rolf Erik Olsen 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: 76 D-Index — 75th percentile

75% of scientists in this discipline score the same or lower.

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

Overview

Rolf Erik Olsen is affiliated with the Norwegian University of Science and Technology in Norway. Their research spans multiple fields, with a primary focus on Agricultural and Biological Sciences, Immunology and Microbiology, and Environmental Science. Within these broad areas, Olsen's work particularly addresses subfields such as Aquatic Science, Immunology, Ecology, Molecular Biology, and Physiology.

The main topics of Olsen's research include Aquaculture Nutrition and Growth, Aquaculture Disease Management and Microbiota, Physiological and Biochemical Adaptations, Fish Ecology and Management Studies, Water Quality Monitoring Technologies, Reproductive Biology and Impacts on Aquatic Species, and Adipose Tissue and Metabolism.

Olsen's recent published papers illustrate a focus on fish health, microbiota, and the biochemical impacts within aquaculture environments. Sample publications include:

  • Paraprobiotics and Postbiotics of Probiotic Lactobacilli, Their Positive Effects on the Host and Action Mechanisms: A Review (2020, Frontiers in Nutrition)
  • The Fish Microbiota: Research Progress and Potential Applications (2023, Engineering)
  • Stabilized fermentation product of Cetobacterium somerae improves gut and liver health and antiviral immunity of zebrafish (2021, Fish & Shellfish Immunology)
  • Effects of Cetobacterium somerae fermentation product on gut and liver health of common carp (Cyprinus carpio) fed diet supplemented with ultra-micro ground mixed plant proteins (2021, Aquaculture)
  • Research progress on gut health of farmers teleost fish: a viewpoint concerning the intestinal mucosal barrier and the impact of its damage (2020, Reviews in Fish Biology and Fisheries)

Olsen frequently publishes in specific venues that concentrate on aquatic sciences and related disciplines. These venues include:

  • Aquaculture
  • Aquaculture Reports
  • Frontiers in Nutrition
  • Marine Biotechnology
  • Journal of Fish Diseases

Collaborations form an integral part of Olsen's research activities. Frequent coauthors include:

  • Chao Ran
  • Einar Ringø
  • Zhen Zhang
  • Zhigang Zhou
  • Yalin Yang

Best Publications

  • Prebiotics in aquaculture: a review

    E. Ringø;R.E. Olsen;T.Ø. Gifstad;R.A. Dalmo

  • Effect of dietary components on the gut microbiota of aquatic animals. A never‐ending story?

    E. Ringø;Z. Zhou;J.L.G. Vecino;S. Wadsworth

  • The rapid analysis of neutral and polar marine lipids using double-development HPTLC and scanning densitometry

    R.E. Olsen;R.J. Henderson

  • Omega-3 Long-Chain Polyunsaturated Fatty Acids, EPA and DHA: Bridging the Gap between Supply and Demand.

    Douglas R. Tocher;Mónica B. Betancor;Matthew Sprague;Rolf Erik Olsen

  • Lactic acid bacteria vs. pathogens in the gastrointestinal tract of fish: a review

    Einar Ringø;Lisbeth Løvmo;Mads Kristiansen;Yvonne Bakken

  • Biochemical composition of copepods for evaluation of feed quality in production of juvenile marine fish

    Terje van der Meeren;Rolf Erik Olsen;Kristin Hamre;Hans Jørgen Fyhn

  • Use of probiotics in aquaculture of China-a review of the past decade.

    Anran Wang;Chao Ran;Yanbo Wang;Zhen Zhang

  • Use of immunostimulants and nucleotides in aquaculture: a review

    Einar Ringø;Rolf Erik Olsen;Jose L. Gonzalez Vecino;Simon Wadsworth

  • Electron microscopy of the intestinal microflora of fish

    Einar Ringø;Rolf Erik Olsen;Terry M Mayhew;Reidar Myklebust

  • Bacterial translocation and pathogenesis in the digestive tract of larvae and fry

    Einar Ringø;Einar Ringø;Reidar Myklebust;Terry M. Mayhew;Rolf Erik Olsen

  • Paraprobiotics and Postbiotics of Probiotic Lactobacilli, Their Positive Effects on the Host and Action Mechanisms: A Review.

    Tsegay Teame;Anran Wang;Mingxu Xie;Zhen Zhang

  • The effect of diet on aerobic bacterial flora associated with intestine of Arctic charr (Salvelinus alpinus L.).

    E. Ringø;R. E. Olsen

  • The replacement of fish meal with Antarctic krill, Euphausia superba in diets for Atlantic salmon, Salmo salar

    R.E. Olsen;J. Suontama;E. Langmyhr;H. Mundheim

  • Acute stress alters intestinal function of rainbow trout, Oncorhynchus mykiss (Walbaum)

    Rolf Erik Olsen;Kristina Sundell;Terry M. Mayhew;Reidar Myklebust

  • Lipid digestibility and ultrastructural changes in the enterocytes of Arctic char (Salvelinus alpinus L.) fed linseed oil and soybean lecithin

    R.E. Olsen;R. Myklebust;T. Kaino;E. Ringø

  • Atlantic Salmon (Salmo salar): The “Super-Chicken” of the Sea?

    Ole Torrissen;Rolf Erik Olsen;Reidar Toresen;Gro Ingunn Hemre

  • Culturable autochthonous gut bacteria in Atlantic salmon (Salmo salar L.) fed diets with or without chitin. Characterization by 16S rRNA gene sequencing, ability to produce enzymes and in vitro growth inhibition of four fish pathogens

    Fatemeh Askarian;Zhigang Zhou;Rolf Erik Olsen;Sigmund Sperstad

  • The effect of dietary inulin on aerobic bacteria associated with hindgut of Arctic charr (Salvelinus alpinus L.)

    Einar Ringø;Sigmund Sperstad;Reidar Myklebust;Terry M Mayhew

  • Dietary effects of soybean products on gut microbiota and immunity of aquatic animals: A review

    Z. Zhou;E. Ringø;R.E. Olsen;S.K. Song

  • The effect of dietary fatty acids on lactic acid bacteria associated with the epithelial mucosa and from faecalia of Arctic charr, Salvelinus alpinus (L.)

    E. Ringø;H. R. Bendiksen;S. J. Gausen;A. Sundsfjord

Frequent Co-Authors

Einar Ringø
Einar Ringø University of Tromsø - The Arctic University of Norway
Douglas R. Tocher
Douglas R. Tocher Shantou University
Santosh P. Lall
Santosh P. Lall Lloyds Banking Group (United Kingdom)
Yngvar Olsen
Yngvar Olsen Norwegian University of Science and Technology
Rune Waagbø
Rune Waagbø University of Bergen
Lars Helge Stien
Lars Helge Stien Animal Welfare Institute
Johnathan A. Napier
Johnathan A. Napier Rothamsted Research
Giuliana Parisi
Giuliana Parisi University of Florence
Aires Oliva-Teles
Aires Oliva-Teles University of Porto
Albert K. Imsland
Albert K. Imsland University of Bergen

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