World's Best Scientists 2026 revealed!
VIEW LIST
John H. Youson

John H. Youson

University of Toronto
Canada

D-Index & Metrics

Biology and Biochemistry

D-Index
52
Citations
8517
World Ranking
16806
National Ranking
595

John H. Youson 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 John H. Youson 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: 264 publications — 71st percentile

71% of scientists in this discipline score the same or lower.

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

John H. Youson 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 John H. Youson 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

John H. Youson is affiliated with the University of Toronto in Canada. Their research interests span several fields within the biological sciences, particularly focusing on aquatic environments and related microbiological and ecological topics.

The scientist's main fields of study include:

  • Agricultural and Biological Sciences
  • Immunology and Microbiology
  • Environmental Science

Within these broader disciplines, John H. Youson specializes in the following subfields:

  • Aquatic Science
  • Immunology
  • Nature and Landscape Conservation

Their work covers various topics that reflect a focus on aquatic life and health management:

  • Aquaculture Nutrition and Growth
  • Aquaculture Disease Management and Microbiota
  • Fish Ecology and Management Studies

John H. Youson's scholarly contributions include publications in recognized academic journals. One notable paper authored in 2022 is titled Divergent Pathways of Ammonia and Urea Production and Excretion during the Life Cycle of the Sea Lamprey, published in the journal Physiological and Biochemical Zoology.

The frequent co-authors associated with John H. Youson's work are:

  • Oana Birceanu
  • Patrícia G. Ferreira
  • James Neal
  • Julia Sunga
  • Shaun Anthony

All of their recent work appears concentrated in a single venue, Physiological and Biochemical Zoology, indicating a focus on research involving physiological and biochemical aspects of animal biology.

Best Publications

  • 2 First Metamorphosis

    John H. Youson

  • Analysis of Lamprey and Hagfish Genes Reveals a Complex History of Gene Duplications During Early Vertebrate Evolution

    Hector Escriva;Lori Manzon;John Youson;Vincent Laudet

  • A description of the stages in the metamorphosis of the anadromous sea lamprey, Petromyzon marinus L

    J. H. Youson;I. C. Potter

  • What is metamorphosis

    C. D. Bishop;D. F. Erezyilmaz;T. Flatt;C. D. Georgiou

  • Cloning of a Functional Vitamin D Receptor from the Lamprey (Petromyzon marinus), an Ancient Vertebrate Lacking a Calcified Skeleton and Teeth

    G. Kerr Whitfield;Hope T. L. Dang;Samuel F. Schluter;Ralph M. Bernstein

  • Ontogenetic and Phylogenetic Development of the Endocrine Pancreas (Islet Organ) in Fishes

    John H. Youson;Azza A. Al-Mahrouki

  • The Appearance of Proopiomelanocortin Early in Vertebrate Evolution: Cloning and Sequencing of POMC from a Lamprey Pituitary cDNA Library

    Julie A. Heinig;Fred W. Keeley;Paul Robson;Stacia A. Sower

  • Metamorphosis in the anadromous sea lamprey, Petromyzon marinus L

    I. C. Potter;Glenda M. Wright;J. H. Youson

  • Phylogeny of the lamprey genus Lampetra inferred from mitochondrial cytochrome b and ND3 gene sequences

    Margaret F Docker;John H Youson;Richard J Beamish;Robert H Devlin

  • Characterization of lamprin, an unusual matrix protein from lamprey cartilage. Implications for evolution, structure, and assembly of elastin and other fibrillar proteins.

    P. Robson;Glenda M. Wright;E. Sitarz;A. Maiti

  • Identification of growth hormone in the sea lamprey, an extant representative of a group of the most ancient vertebrates.

    Hiroshi Kawauchi;Kunimasa Suzuki;Tomohide Yamazaki;Shunsuke Moriyama

  • Importance of Condition Factor and the Influence of Water Temperature and Photoperiod on Metamorphosis of Sea Lamprey Petromyzon marinus

    J. H. Youson;J. A. Holmes;J. A. Guchardi;J. G. Seelye

  • The Biology of Metamorphosis in Sea Lampreys: Endocrine, Environmental, and Physiological Cues and Events, and Their Potential Application to Lamprey Control

    John H. Youson

  • Isolation and characterization of a variant somatostatin-14 and two related somatostatins of 34 and 37 residues from lamprey (Petromyzon marinus).

    P C Andrews;H G Pollock;W M Elliott;J H Youson

  • Serum thyroxine concentrations in larval and metamorphosing anadromous sea lamprey, Petromyzon marinus L.

    Glenda M. Wright;John H. Youson

  • IS LAMPREY METAMORPHOSIS REGULATED BY THYROID HORMONES

    John H. Youson

  • Morphological changes in the liver of the sea lamprey, Petromyzon marinus L., during metamorphosis: I. Atresia of the bile ducts

    E. W. Sidon;J. H. Youson

  • Morphology of the gills of larval and parasitic adult sea lamprey, Petromyzon marinus L.

    John H. Youson;Peter A. Freeman

  • The distribution of fat in larval, metamorphosing, and young adult anadromous sea lampreys, Petromyzon marinus L.

    J. H. Youson;J. Lee;I. C. Potter

  • Fall condition factor and temperature influence the incidence of metamorphosis in sea lampreys, Petromyzon marinus

    John A. Holmes;John H. Youson

Frequent Co-Authors

Ian C. Potter
Ian C. Potter Murdoch University
Paul Robson
Paul Robson University of Connecticut
J. Michael Conlon
J. Michael Conlon University of Ulster
Hiroshi Kawauchi
Hiroshi Kawauchi Kitasato University
David M. Irwin
David M. Irwin University of Toronto
Richard J. Beamish
Richard J. Beamish Fisheries and Oceans Canada
Thomas W. Moon
Thomas W. Moon University of Ottawa
Ian R. Brown
Ian R. Brown University of Toronto
Patrick J. Walsh
Patrick J. Walsh University of Ottawa
Vincent Laudet
Vincent Laudet Okinawa Institute of Science and Technology

External Links

Personal website of John H. Youson

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

If you’re passionate about Biology and Biochemistry, many related online degrees can expand your knowledge and boost your career options. Several healthcare fields now offer flexible study options, allowing you to build new skills while balancing other commitments.

For registered nurses looking to advance, consider the rn to bsn online programs, known for their streamlined curriculum and accessibility. Another fast-growing option is the fastest post master's fnp certificate, ideal for professionals aiming for specialized nurse practitioner roles.

If you’re interested in health and wellness, an online nutritionist degree covers essential aspects of dietetics and nutrition, preparing you for exciting careers in teaching, consulting, or clinical settings.

For those looking to combine science with business, an accelerated healthcare management degree online can lead to leadership roles in hospitals or research organizations. These diverse pathways let you tailor your educational journey to match your career ambitions in the biology and health sciences arena.

Best Scientists Citing John H. Youson

Ian C. Potter

Ian C. Potter

Murdoch University

Publications: 62

Hiroshi Kawauchi

Hiroshi Kawauchi

Kitasato University

Publications: 35

J. Michael Conlon

J. Michael Conlon

University of Ulster

Publications: 34

Akiyoshi Takahashi

Akiyoshi Takahashi

Kitasato University

Publications: 29

Dan Larhammar

Dan Larhammar

Uppsala University

Publications: 25

Hubert Vaudry

Hubert Vaudry

University of Rouen

Publications: 25

Ramón Anadón

Ramón Anadón

University of Santiago de Compostela

Publications: 24

Stephen D. McCormick

Stephen D. McCormick

University of Massachusetts Amherst

Publications: 22

Margaret F. Docker

Margaret F. Docker

University of Manitoba

Publications: 22

Pedro R. Almeida

Pedro R. Almeida

University of Évora

Publications: 20

Vincent Laudet

Vincent Laudet

Okinawa Institute of Science and Technology

Publications: 19

David M. Irwin

David M. Irwin

University of Toronto

Publications: 19

José L. Soengas

José L. Soengas

Universidade de Vigo

Publications: 19

Shigehiro Kuraku

Shigehiro Kuraku

National Institute of Genetics

Publications: 15

Réjean Dubuc

Réjean Dubuc

University of Quebec at Montreal

Publications: 12

Michael E. Selzer

Michael E. Selzer

Temple University

Publications: 12

Trending Scientists

Artur Ciesielski

Artur Ciesielski

University of Strasbourg

Run Long

Run Long

Beijing Normal University

Sarah S. Murray

Sarah S. Murray

University of California, San Diego

M. E. Zeller

M. E. Zeller

Yale University

Robert A. Cramer

Robert A. Cramer

Dartmouth College

Michael Trainer

Michael Trainer

National Oceanic and Atmospheric Administration

Kiyoshi Takahashi

Kiyoshi Takahashi

National Institute for Environmental Studies

Susan Cordell

Susan Cordell

US Forest Service

Gordon J. McDougall

Gordon J. McDougall

James Hutton Institute

Jianqiang Wang

Jianqiang Wang

Central South University

Takayuki Shioiri

Takayuki Shioiri

Meijo University

M. Christina White

M. Christina White

University of Illinois at Urbana-Champaign

Sylvia Daunert

Sylvia Daunert

University of Miami

Yitao Wang

Yitao Wang

University of Macau

Robert F. Gagel

Robert F. Gagel

The University of Texas MD Anderson Cancer Center

Pavel Cudlín

Pavel Cudlín

Czech Academy of Sciences

Related Biology and Biochemistry Rankings & Guides

2026 Can You Get a Speech Pathology Degree Master's Without a Related Bachelor's Degree?

2026 Can You Get a Speech Pathology Degree Master's Without a Related Bachelor's Degree?
2026 How to Become an OB-GYN Sonographer: Education, Salary, and Job Outlook

2026 How to Become an OB-GYN Sonographer: Education, Salary, and Job Outlook
2026 Admission Requirements for Health Informatics Degree Programs

2026 Admission Requirements for Health Informatics Degree Programs
2026 How to Become an RNFA: Education, Salary, and Job Outlook

2026 How to Become an RNFA: Education, Salary, and Job Outlook
2026 AI, Automation, and the Future of Family Nurse Practitioner Degree Careers

2026 AI, Automation, and the Future of Family Nurse Practitioner Degree Careers
2026 Online Nutrition Degree Master's Programs That Accept FAFSA

2026 Online Nutrition Degree Master's Programs That Accept FAFSA
2026 Health Coaching Careers: Skills, Education, Salary & Job Outlook

2026 Health Coaching Careers: Skills, Education, Salary & Job Outlook
2026 Nutrition Degree Master's Programs You Can Start Without Meeting All Requirements

2026 Nutrition Degree Master's Programs You Can Start Without Meeting All Requirements
2026 Which Schools Offer Flexible Start-Anytime Enrollment for an Occupational Therapy Program?

2026 Which Schools Offer Flexible Start-Anytime Enrollment for an Occupational Therapy Program?
2026 Which Schools Offer Flexible Start-Anytime Enrollment for a Regulatory Science & Affairs Degree Master's Program?

2026 Which Schools Offer Flexible Start-Anytime Enrollment for a Regulatory Science & Affairs Degree Master's Program?
2026 Fastest Online Nurse Midwifery Degree Programs You Can Finish in Under 2 Years

2026 Fastest Online Nurse Midwifery Degree Programs You Can Finish in Under 2 Years
2026 Certified Nursing Assistant (CNA) vs. Registered Nurse (RN): Explaining the Difference

2026 Certified Nursing Assistant (CNA) vs. Registered Nurse (RN): Explaining the Difference
2026 Is a 2-Year Respiratory Care Therapy Degree Worth It: Accelerated Bachelor's ROI & Time Trade-Offs

2026 Is a 2-Year Respiratory Care Therapy Degree Worth It: Accelerated Bachelor's ROI & Time Trade-Offs
2026 Which Schools Offer Flexible Start-Anytime Enrollment for a Psychiatric Mental Health Nurse Practitioner Program?

2026 Which Schools Offer Flexible Start-Anytime Enrollment for a Psychiatric Mental Health Nurse Practitioner Program?
2026 AI, Automation, and the Future of Nurse Administrator Degree Careers

2026 AI, Automation, and the Future of Nurse Administrator Degree Careers
2026 How to Become an Anesthesia Technician: Education, Salary, and Job Outlook

2026 How to Become an Anesthesia Technician: Education, Salary, and Job Outlook
2026 DNA Analyst Careers: Skills, Education, Salary & Job Outlook

2026 DNA Analyst Careers: Skills, Education, Salary & Job Outlook
2026 Easiest Online Healthcare Innovation Master's Degree Programs That Pay Well: High-Salary Degrees with Simple Admissions

2026 Easiest Online Healthcare Innovation Master's Degree Programs That Pay Well: High-Salary Degrees with Simple Admissions
2026 Cheapest and Shortest Online Pharmacy Degree Programs That Pay Well: Cost, Duration, and Salary Outlook

2026 Cheapest and Shortest Online Pharmacy Degree Programs That Pay Well: Cost, Duration, and Salary Outlook
2026 MRI Tech vs. Radiology Tech: Explaining the Difference

2026 MRI Tech vs. Radiology Tech: Explaining the Difference
2026 Is Demand for Bioinformatics Degree Graduates Growing or Declining?

2026 Is Demand for Bioinformatics Degree Graduates Growing or Declining?

Recently Published Articles

2026 Online Nutrition Degree Master's Programs That Accept FAFSA

2026 Online Nutrition Degree Master's Programs That Accept FAFSA
2026 Human Services Master's Degree Licensure Requirements by State

2026 Human Services Master's Degree Licensure Requirements by State
2026 Cheapest and Shortest Online Business Administration Degree Programs That Pay Well: Cost, Duration, and Salary Outlook

2026 Cheapest and Shortest Online Business Administration Degree Programs That Pay Well: Cost, Duration, and Salary Outlook
2026 10 Best Nationally Accredited Online Colleges & Universities

2026 10 Best Nationally Accredited Online Colleges & Universities
2026 Best Online Master’s in Clinical Research Programs

2026 Best Online Master’s in Clinical Research Programs
2026 Admission Requirements for Finance Degree Master's Programs: GPA, Prerequisites, and Acceptance Criteria

2026 Admission Requirements for Finance Degree Master's Programs: GPA, Prerequisites, and Acceptance Criteria
2026 Entry-Level Jobs With a Healthcare Administration Degree

2026 Entry-Level Jobs With a Healthcare Administration Degree
2026 Best Speech Pathology Degrees for Working Adults

2026 Best Speech Pathology Degrees for Working Adults
2026 Best Accredited Online BFA (Bachelor of Fine Arts) Bachelor's Degree Programs

2026 Best Accredited Online BFA (Bachelor of Fine Arts) Bachelor's Degree Programs
2026 Best Online Biology Degree Master's Programs for Career Changers

2026 Best Online Biology Degree Master's Programs for Career Changers
2026 How to Become a Medical Biller & Coder in Toledo, OH: Education Requirements & Certification

2026 How to Become a Medical Biller & Coder in Toledo, OH: Education Requirements & Certification
2026 How to Become a Caregiver: Certification Requirements in Florida

2026 How to Become a Caregiver: Certification Requirements in Florida
2026 Fastest Online Bachelor’s in Emergency Management Programs

2026 Fastest Online Bachelor’s in Emergency Management Programs
2026 Most Affordable Online MFA Programs

2026 Most Affordable Online MFA Programs
2026 Best Online MSW Programs for Grief and Bereavement Careers

2026 Best Online MSW Programs for Grief and Bereavement Careers
2026 Military-Friendly Online Logistics Bachelor's Degree Programs

2026 Military-Friendly Online Logistics Bachelor's Degree Programs
How to Transfer Grad Schools in 2026

How to Transfer Grad Schools in 2026
2026 Competency-Based Online Mathematics Master's Degrees

2026 Competency-Based Online Mathematics Master's Degrees
2026 Self-Paced Online Information Security Degree Master's Programs

2026 Self-Paced Online Information Security Degree Master's Programs
2026 Different Types of Fire Science Bachelor's Degrees: Specializations, Careers, and Salaries

2026 Different Types of Fire Science Bachelor's Degrees: Specializations, Careers, and Salaries
2026 Organizational Leadership Degree Coursework Explained: What Classes Can You Expect to Take?

2026 Organizational Leadership Degree Coursework Explained: What Classes Can You Expect to Take?