World's Best Scientists 2026 revealed!
John M. Casselman

John M. Casselman

D-Index & Metrics

Ecology and Evolution

D-Index
37
Citations
7132
World Ranking
6788
National Ranking
426

John M. Casselman publication distribution in Ecology and Evolution in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Ecology and Evolution in 2026. The highlighted bar marks where John M. Casselman sits on this spectrum.

37–41 publications: 2 scientists 42–46 publications: 9 scientists 47–51 publications: 10 scientists 52–56 publications: 31 scientists 57–61 publications: 56 scientists 62–66 publications: 91 scientists 67–71 publications: 92 scientists 72–76 publications: 127 scientists 77–81 publications: 173 scientists 82–86 publications: 236 scientists 87–91 publications: 227 scientists 92–96 publications: 240 scientists 97–101 publications: 333 scientists 102–106 publications: 280 scientists 107–111 publications: 300 scientists 112–116 publications: 285 scientists 117–121 publications: 305 scientists 122–126 publications: 287 scientists 127–131 publications: 278 scientists 132–136 publications: 289 scientists 137–141 publications: 273 scientists 142–146 publications: 262 scientists 147–151 publications: 246 scientists 152–156 publications: 235 scientists 157–161 publications: 205 scientists 162–166 publications: 199 scientists 167–171 publications: 174 scientists 172–176 publications: 164 scientists 177–181 publications: 173 scientists 182–186 publications: 189 scientists 187–191 publications: 170 scientists 192–196 publications: 139 scientists 197–201 publications: 128 scientists 202–206 publications: 117 scientists 207–211 publications: 115 scientists 212–216 publications: 107 scientists 217–221 publications: 124 scientists 222–226 publications: 81 scientists 227–231 publications: 82 scientists 232–236 publications: 85 scientists 237–241 publications: 75 scientists 242–246 publications: 66 scientists 247–251 publications: 81 scientists 252–256 publications: 69 scientists 257–261 publications: 70 scientists 262–266 publications: 55 scientists 267–271 publications: 64 scientists 272–276 publications: 49 scientists 277–281 publications: 48 scientists 282–286 publications: 44 scientists 287–291 publications: 45 scientists 292–296 publications: 36 scientists 297–301 publications: 39 scientists 302–306 publications: 38 scientists 307–311 publications: 30 scientists 312–316 publications: 34 scientists 317–321 publications: 25 scientists 322–326 publications: 22 scientists 327–331 publications: 28 scientists 332–336 publications: 30 scientists 337–341 publications: 22 scientists 342–346 publications: 30 scientists 347–351 publications: 26 scientists 352–356 publications: 22 scientists 357–361 publications: 29 scientists 362–366 publications: 21 scientists 367–371 publications: 12 scientists 372–376 publications: 18 scientists 377–381 publications: 17 scientists 382–386 publications: 13 scientists 387–391 publications: 21 scientists 392–396 publications: 13 scientists 397–401 publications: 10 scientists 402–406 publications: 15 scientists 407–411 publications: 8 scientists 412–416 publications: 9 scientists 417–421 publications: 8 scientists 422–426 publications: 4 scientists 427–431 publications: 10 scientists 432–436 publications: 10 scientists 437–441 publications: 5 scientists 442–446 publications: 4 scientists 447–451 publications: 10 scientists 452–456 publications: 2 scientists 457–461 publications: 4 scientists 462–466 publications: 7 scientists 467–471 publications: 7 scientists 472–476 publications: 6 scientists 477–481 publications: 6 scientists 482–486 publications: 3 scientists 487–491 publications: 3 scientists 492–496 publications: 4 scientists 497–501 publications: 4 scientists 502–506 publications: 8 scientists 507–511 publications: 5 scientists 512–516 publications: 4 scientists 517–521 publications: 5 scientists 522–526 publications: 4 scientists 527–530 publications: 5 scientists 531+ publications: 100 scientists
37 publications 531+

This scientist: 95 publications — 15th percentile

15% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 531 publications or more.

John M. Casselman D-index placement in Ecology and Evolution in 2026

The chart shows the D-index (discipline H-index) distribution of Ecology and Evolution scientists ranked by Research.com in 2026. The highlighted bar marks where John M. Casselman sits on this spectrum.

30 D-Index: 95 scientists 31 D-Index: 123 scientists 32 D-Index: 191 scientists 33 D-Index: 245 scientists 34 D-Index: 252 scientists 35 D-Index: 244 scientists 36 D-Index: 249 scientists 37 D-Index: 244 scientists 38 D-Index: 254 scientists 39 D-Index: 254 scientists 40 D-Index: 280 scientists 41 D-Index: 274 scientists 42 D-Index: 266 scientists 43 D-Index: 233 scientists 44 D-Index: 248 scientists 45 D-Index: 208 scientists 46 D-Index: 201 scientists 47 D-Index: 213 scientists 48 D-Index: 207 scientists 49 D-Index: 172 scientists 50 D-Index: 209 scientists 51 D-Index: 199 scientists 52 D-Index: 153 scientists 53 D-Index: 169 scientists 54 D-Index: 163 scientists 55 D-Index: 148 scientists 56 D-Index: 120 scientists 57 D-Index: 146 scientists 58 D-Index: 137 scientists 59 D-Index: 140 scientists 60 D-Index: 104 scientists 61 D-Index: 119 scientists 62 D-Index: 118 scientists 63 D-Index: 99 scientists 64 D-Index: 77 scientists 65 D-Index: 100 scientists 66 D-Index: 86 scientists 67 D-Index: 83 scientists 68 D-Index: 75 scientists 69 D-Index: 94 scientists 70 D-Index: 57 scientists 71 D-Index: 68 scientists 72 D-Index: 59 scientists 73 D-Index: 63 scientists 74 D-Index: 66 scientists 75 D-Index: 60 scientists 76 D-Index: 42 scientists 77 D-Index: 49 scientists 78 D-Index: 39 scientists 79 D-Index: 37 scientists 80 D-Index: 43 scientists 81 D-Index: 41 scientists 82 D-Index: 45 scientists 83 D-Index: 34 scientists 84 D-Index: 40 scientists 85 D-Index: 35 scientists 86 D-Index: 55 scientists 87 D-Index: 24 scientists 88 D-Index: 24 scientists 89 D-Index: 30 scientists 90 D-Index: 23 scientists 91 D-Index: 25 scientists 92 D-Index: 27 scientists 93 D-Index: 27 scientists 94 D-Index: 13 scientists 95 D-Index: 23 scientists 96 D-Index: 12 scientists 97 D-Index: 14 scientists 98 D-Index: 19 scientists 99 D-Index: 16 scientists 100 D-Index: 14 scientists 101 D-Index: 5 scientists 102 D-Index: 21 scientists 103 D-Index: 16 scientists 104 D-Index: 10 scientists 105 D-Index: 7 scientists 106 D-Index: 7 scientists 107 D-Index: 7 scientists 108 D-Index: 6 scientists 109 D-Index: 9 scientists 110 D-Index: 11 scientists 111 D-Index: 12 scientists 112 D-Index: 9 scientists 113 D-Index: 7 scientists 114 D-Index: 3 scientists 115 D-Index: 8 scientists 116 D-Index: 5 scientists 117 D-Index: 11 scientists 118 D-Index: 4 scientists 119 D-Index: 2 scientists 120 D-Index: 5 scientists 121+ D-Index: 100 scientists
30 D-Index 121+

This scientist: 37 D-Index — 20th percentile

20% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 121 D-Index or more.

Overview

John M. Casselman is affiliated with Queen's University in Canada and has contributed extensively to environmental science, with a focus on aquatic ecosystems and fish ecology. Their research addresses multiple areas within environmental science, particularly nature and landscape conservation, ecology, aquatic science, global and planetary change, and physiology.

The primary topics of investigation in their work include fish ecology and management studies, marine and fisheries research, reproductive biology and impacts on aquatic species, aquaculture nutrition and growth, isotope analysis in ecology, gut microbiota and health, and indigenous studies and ecology.

Among recent papers authored or co-authored by Casselman are:

  • Important questions to progress science and sustainable management of anguillid eels (2021, Fish and Fisheries)
  • Arctic freshwater fish productivity and colonization increase with climate warming (2020, Nature Climate Change)
  • A Brief History of Fisheries in Canada (2020, Fisheries)
  • Seasonal habitat drives intestinal microbiome composition in anadromous Arctic char (Salvelinus alpinus) (2020, Environmental Microbiology)
  • Sex-based differences in fatty acid composition of adult walleye (2020, Ecology Of Freshwater Fish)

Frequent publication venues for Casselman's works include Fisheries, Arctic Science, Fish and Fisheries, Nature Climate Change, and Environmental Microbiology.

Their collaboration network features frequent co-authors such as Virginia K. Walker, Katja Engel, Josh D. Neufeld, Peter van Coeverden de Groot, and Charles W. Greer.

Best Publications

  • Stable isotope evidence for the food web consequences of species invasions in lakes

    M. Jake Vander Zanden;M. Jake Vander Zanden;John M. Casselman;Joseph B. Rasmussen

  • Stock Discrimination Using Otolith Shape Analysis

    Steven E. Campana;John M. Casselman

  • Stock Identification: Materials and Methods

    Unknown

  • Lake Ontario: food web dynamics in a changing ecosystem (1970-2000)

    E L Mills;J M Casselman;R Dermott;J D Fitzsimons

  • Growth and Relative Size of Calcified Structures of Fish

    John M. Casselman

  • Habitat requirements of northern pike ( Essox lucius )

    Unknown

  • Synergistic patterns of threat and the challenges facing global anguillid eel conservation

    David M.P. Jacoby;John M. Casselman;Vicki Crook;Mari-Beth DeLucia

  • Size distribution of pelagic particles in lakes

    W. Gary Sprules;J. M. Casselman;B.J. Shuter

  • Maternal influences on population dynamics: evidence from an exploited freshwater fish

    Paul A. Venturelli;Cheryl A. Murphy;Brian J. Shuter;Brian J. Shuter;Thomas A. Johnston

  • Dynamics of Resources of the American Eel, Anguilla rostrata: Declining Abundance in the 1990s

    John M. Casselman

  • Lake Whitefish (Coregonus clupeaformis) Stocks of the Ontario Waters of Lake Huron

    Unknown

  • Bomb radiocarbon chronologies in the Arctic, with implications for the age validation of lake trout (Salvelinus namaycush) and other Arctic species

    Steven E Campana;John M Casselman;Cynthia M Jones

  • Lake Trout Spawning Habitat in the Great Lakes — a Review of Current Knowledge

    J. Ellen Marsden;John M. Casselman;Thomas A. Edsall;Robert F. Elliott

  • Age, growth and environmental requirements of pike

    Unknown

  • Glossary for otolith studies

    J.M. Kalish;R.J. Beamish;J.M. Casselman

  • Important questions to progress science and sustainable management of anguillid eels

    David Righton;David Righton;Adam Piper;Kim Aarestrup;Elsa Amilhat

  • Principles for ensuring healthy and productive freshwater ecosystems that support sustainable fisheries

    Unknown

  • Relationships Between Body Condition Indices and Proximate Composition in Adult Walleyes

    S. D. Kaufman;T. A. Johnston;W. C. Leggett;M. D. Moles

  • Changes in Lake Trout Growth and Abundance after Introduction of Cisco into Lake Opeongo, Ontario

    John E. Matuszek;Brian J. Shuter;John M. Casselman

  • Long-term changes in legacy trace organic contaminants and mercury in Lake Ontario salmon in relation to source controls, trophodynamics, and climatic variability

    Todd D. French;Linda M. Campbell;Donald A. Jackson;John M. Casselman

  • Hatching success of walleye embryos in relation to maternal and ova characteristics

    T. A. Johnston;M. D. Wiegand;W. C. Leggett;R. J. Pronyk

  • Dynamics in Year-Class Strength, Growth, and Calcified-Structure Size of Native Lake Trout (Salvelinus namaycush) Exposed to Moderate Acidification and Whole-Lake Neutralization

    John M. Casselman;John M. Gunn

  • Survival and Growth of Stocked Lake Trout in Relation to Body Size, Stocking Season, Lake Acidity, and Biomass of Competitors

    J. M. Gunn;M. J. McMurtry;J. N. Bowlby;J. M. Casselman

  • Growth and Ultimate Length of Muskellunge from Ontario Water Bodies

    John M. Casselman;Chris J. Robinson;E. J. Crossman

  • Survival and Development of Lake Trout Eggs and Fry in Eastern Lake Ontario — in situ Incubation, Yorkshire Bar, 1989–1993

    John M. Casselman

  • Species introductions and their impacts in North American Shield lakes.

    Karen Wilson;M. Vander Zanden;J. Casselman;N. Yan

  • Is gonadal investment in walleye (Sander vitreus) dependent on body lipid reserves? A multipopulation comparative analysis

    Matthew D Moles;Thomas A Johnston;Beren W Robinson;William C Leggett

  • Otolith age determination for adult tilapia, Oreochromis niloticus L. from Lake Awassa (Ethiopian Rift Valley) by interpreting biannuli and differentiating biannual recruitment

    Demeke Admassu;Demeke Admassu;John M. Casselman

  • A synthesis of ecological and fish-community changes in Lake Ontario, 1970-2000

    E.L. Mills;J.M. Casselman;R. Dermott;J.D. Fitzsimons

Frequent Co-Authors

John D. Fitzsimons
John D. Fitzsimons Fisheries and Oceans Canada
M. Jake Vander Zanden
M. Jake Vander Zanden University of Wisconsin–Madison
Charles R. Bronte
Charles R. Bronte United States Fish and Wildlife Service
Lars G. Rudstam
Lars G. Rudstam Cornell University
John M. Gunn
John M. Gunn Laurentian University
Joseph B. Rasmussen
Joseph B. Rasmussen University of Lethbridge
Norman D. Yan
Norman D. Yan York University
Brian J. Shuter
Brian J. Shuter University of Toronto
J. Ellen Marsden
J. Ellen Marsden University of Vermont

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