World's Best Scientists 2026 revealed!
Josef Daniel Ackerman

Josef Daniel Ackerman

D-Index & Metrics

Environmental Sciences

D-Index
36
Citations
5379
World Ranking
9121
National Ranking
421

Josef Daniel Ackerman publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Josef Daniel Ackerman sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 105 publications — 16th percentile

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

The last bar groups every scientist with 687 publications or more.

Josef Daniel Ackerman D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Josef Daniel Ackerman sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 36 D-Index — 7th percentile

7% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Josef Daniel Ackerman is affiliated with the University of Guelph in Canada and is active in the field of environmental science with a focus on aquatic ecosystems. Their research spans multiple subfields, including ecology, nature and landscape conservation, environmental chemistry, global and planetary change, and oceanography.

The main topics covered in their work include fish ecology and management studies, aquatic invertebrate ecology and behavior, aquatic ecosystems and phytoplankton dynamics, marine bivalve and aquaculture studies, hydrology and sediment transport processes, marine and fisheries research, and marine and coastal ecosystems.

Frequent coauthors collaborating with Ackerman include Leon Boegman, Todd J. Morris, Aidin Jabbari, Yingming Zhao, and Christopher Farrow.

Their recent papers demonstrate a focus on various aspects of freshwater and aquatic environmental science. Notable publications include:

  • Increases in Great Lake winds and extreme events facilitate interbasin coupling and reduce water quality in Lake Erie (2021, Scientific Reports)
  • Three-dimensional modeling of sediment resuspension in a large shallow lake (2021, Journal of Great Lakes Research)
  • Approaches and research needs for advancing the protection and recovery of imperilled freshwater fishes and mussels in Canada (2021, Canadian Journal of Fisheries and Aquatic Sciences)
  • Empirical modeling of hypolimnion and sediment oxygen demand in temperate Canadian lakes (2021, Inland Waters)
  • Nearshore-offshore exchanges by enhanced turbulent mixing along the north shore of Lake Ontario (2023, Journal of Great Lakes Research)

Josef Daniel Ackerman frequently publishes in well-regarded journals including Limnology and Oceanography, The Science of The Total Environment, Scientific Reports, Journal of Great Lakes Research, and Canadian Journal of Fisheries and Aquatic Sciences.

Best Publications

  • Achieving campus sustainability: top‐down, bottom‐up, or neither?

    Marena Brinkhurst;Peter Rose;Gillian Maurice;Josef Daniel Ackerman

  • Fluid Dynamics in Seagrass Ecology—from Molecules to Ecosystems

    Evamaria W. Koch;Josef D. Ackerman;Jennifer Verduin;Michael van Keulen

  • Fluid dynamics in seagrass ecology - from molecules to ecosystems

    E.W. Koch;J.D. Ackerman;J. Verduin;M. van Keulen

  • Reduced mixing in a marine macrophyte canopy.

    J. D. Ackerman;A. Okubo

  • Abiotic pollen and pollination: Ecological, functional, and evolutionary perspectives

    Josef Daniel Ackerman

  • A review of the early life history of zebra mussels (Dreissena polymorpha): comparisons with marine bivalves

    Josef Daniel Ackerman;Blair Sim;S. Jerrine Nichols;Renata Claudi

  • Benthic-pelagic coupling over a zebra mussel reef in western Lake Erie

    Josef Daniel Ackerman;Mark R. Loewen;Paul F. Hamblin

  • Observations of particle capture on a cylindrical collector: Implications for particle accumulation and removal in aquatic systems

    Molly R. Palmer;Heidi M. Nepf;Thomas J. R. Pettersson;Josef D. Ackerman

  • Effect of velocity on the filter feeding of dreissenid mussels (Dreissena polymorpha and Dreissena bugensis) : implications for trophic dynamics

    Josef Daniel Ackerman

  • Secondary invasion of the round goby into high diversity Great Lakes tributaries and species at risk hotspots: potential new concerns for endangered freshwater species

    Mark Poos;Alan J. Dextrase;Astrid N. Schwalb;Josef D. Ackerman

  • Factors affecting the development and dynamics of hypoxia in a large shallow stratified lake: Hourly to seasonal patterns

    Damien Bouffard;Josef Daniel Ackerman;Leon Boegman

  • Sexual Reproduction of Seagrasses: Pollination in the Marine Context

    Josef Daniel Ackerman

  • Dispersal limitation of unionid mussels and implications for their conservation

    Astrid N. Schwalb;Astrid N. Schwalb;Karl Cottenie;Mark S. Poos;Josef D. Ackerman

  • Variation in pollinator abundance and selection on fragrance phenotypes in an epiphytic orchid.

    James D. Ackerman;Elvia J. Meléndez-Ackerman;José Salguero-Faria

  • Sensitivity of the glochidia (larvae) of freshwater mussels to copper: assessing the effect of water hardness and dissolved organic carbon on the sensitivity of endangered species.

    Patricia L. Gillis;Rebecca J. Mitchell;Astrid N. Schwalb;Kelly A. McNichols

  • Mechanistic implications for pollination in the marine angiosperm Zostera marina

    Josef Daniel Ackerman

  • Diffusivity in a marine macrophyte canopy: implications for submarine pollination and dispersal.

    Josef Daniel Ackerman

  • Convergence of filiform pollen morphologies in seagrasses: Functional mechanisms

    Josef Daniel Ackerman

  • Physiological and Taxonomic Separation of Two Dreissenid Mussels in the Laurentian Great Lakes

    S. Domm;R.W. McCauley;E. Kott;J. D. Ackerman

  • Measurement of local bed shear stress in streams using a Preston-static tube

    Josef Daniel Ackerman;Trent M. Hoover

  • Submarine pollination in the marine angiosperm Zostera marina (Zosteraceae). II. Pollen transport in flow fields and capture by stigmas.

    Josef Daniel Ackerman

  • Coastal Upwelling Influences Hypoxia Spatial Patterns and Nearshore Dynamics in Lake Erie

    M. D. Rowe;E. J. Anderson;D. Beletsky;C. A. Stow

Frequent Co-Authors

Jan K. Spelt
Jan K. Spelt University of Toronto
C. Ross Ethier
C. Ross Ethier Georgia Institute of Technology
David F. Greene
David F. Greene Humboldt State University
Alfred Wüest
Alfred Wüest Swiss Federal Institute of Aquatic Science and Technology
Ralph E. H. Smith
Ralph E. H. Smith University of Waterloo
Dmitry Beletsky
Dmitry Beletsky University of Michigan–Ann Arbor
Donald A. Jackson
Donald A. Jackson University of Toronto
Chris M. Wood
Chris M. Wood University of British Columbia
Chris C. Wilson
Chris C. Wilson Ministry of Natural Resources and Forestry

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Related Online Degrees & Career Pathways

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