World's Best Scientists 2026 revealed!
Ellie E. Prepas

Ellie E. Prepas

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Environmental Sciences
Canada
2023

D-Index & Metrics

Environmental Sciences

D-Index
66
Citations
12864
World Ranking
2133
National Ranking
80

Biology and Biochemistry

D-Index
66
Citations
12845
World Ranking
8835
National Ranking
306

Ellie E. Prepas 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 Ellie E. Prepas 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: 193 publications — 62nd percentile

62% of scientists in this discipline score the same or lower.

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

Ellie E. Prepas 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 Ellie E. Prepas 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: 66 D-Index — 79th percentile

79% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2023 - Research.com Environmental Sciences in Canada Leader Award

Overview

Ellie E. Prepas is affiliated with Lakehead University in Canada. Their academic career is primarily centered within this institution, contributing to its research environment.

There are no recent papers, co-authors, or frequent publication venues recorded for Ellie E. Prepas at this time. Similarly, no specific book publications have been documented in available data.

No main fields of study, subfields, or main topics of work have been identified or listed, limiting the detailing of research specialization or thematic focus.

Data does not indicate any awards or honors received by Ellie E. Prepas, so there is no information regarding recognitions or distinctions.

Best Publications

  • Hepatotoxic Cyanobacteria: A Review of the Biological Importance of Microcystins in Freshwater Environments

    Ronald W. Zurawell;Huirong Chen;Janice M. Burke;Ellie E. Prepas

  • Current Velocity and Its Effect on Aquatic Macrophytes in Flowing Waters.

    P. A. Chambers;E. E. Prepas;H. R. Hamilton;M. L. Bothwell

  • Individual specialization and trophic adaptability of northern pike ( Esox lucius ): an isotope and dietary analysis

    Catherine P. Beaudoin;William M. Tonn;Ellie E. Prepas;Leonard I. Wassenaar

  • Evaluation of Total Phosphorus as a Predictor of the Relative Biomass of Blue-green Algae with Emphasis on Alberta Lakes

    Annette M. Trimbee;E. E. Prepas

  • VARIABILITY OF THE HEPATOTOXIN MICROCYSTIN‐LR IN HYPEREUTROPHIC DRINKING WATER LAKES1

    Brian G. Kotak;Angeline K-Y. Lam;Ellie E. Prepas;Sandra L. Kenefick

  • Improvements in Quantifying the Phosphorus Concentration in Lake Water

    E. E. Prepas;F. H. Rigler

  • Effects of experimentally induced cyanobacterial blooms on crustacean zooplankton communities

    Anas Ghadouani;Bernadette Pinel‐Alloul;Ellie E. Prepas

  • Chemical control of hepatotoxic phytoplankton blooms: Implications for human health

    Angeline K.-Y. Lam;Ellie E. Prepas;David Spink;Steve E. Hrudey

  • Metal-PAH mixtures in the aquatic environment: a review of co-toxic mechanisms leading to more-than-additive outcomes.

    Patrick T. Gauthier;Warren P. Norwood;Ellie E. Prepas;Greg G. Pyle

  • Quantitative comparison of lake throughflow, residency, and catchment runoff using stable isotopes: modelling and results from a regional survey of Boreal lakes

    J.J. Gibson;E.E. Prepas;P. McEachern

  • Occurrence and toxicological evaluation of cyanobacterial toxins in Alberta lakes and farm dugouts

    Brian G. Kotak;Sandra L. Kenefick;David L. Fritz;Colin G. Rousseaux

  • Role of chemical and physical variables in regulating microcystin-LR concentration in phytoplankton of eutrophic lakes

    Brian G. Kotak;Angeline K.-Y. Lam;Ellie E. Prepas;Steve E. Hrudey

  • Hepatic and renal pathology of intraperitoneally administered microcystin-LR in rainbow trout (Oncorhynchus mykiss).

    Brian G. Kotak;Souleh Semalulu;David L. Fritz;Ellie E. Prepas

  • Microcystin-LR concentration in aquatic food web compartments from lakes of varying trophic status

    B. G. Kotak;R. W. Zurawell;E. E. Prepas;C. F. B. Holmes

  • Sugar‐frosted Daphnia: An improved fixation technique for Cladocera 1

    Ellie Prepas

  • Roots versus shoots in nutrient uptake by aquatic macrophytes in flowing waters

    P. A. Chambers;E. E. Prepas;M. L. Bothwell;H. R. Hamilton

  • Potential effects of climate change on aquatic ecosystems of the Great Plains of North America

    A. P. Covich;S. C. Fritz;P. J. Lamb;R. D. Marzolf

  • Anomalous, short‐term influx of water into seepage meters

    R. D. Shaw;E. E. Prepas

  • Toxin Release from Microcystis Aeruginosa after Chemical Treatment

    S. L. Kenefick;S. E. Hrudey;H. G. Peterson;E. E. Prepas

  • Selective foraging by the crayfish Orconectes virilis and its impact on macroinvertebrates

    John Mark Hanson;Patricia A. Chambers;Ellie E. Prepas

Frequent Co-Authors

Patricia A. Chambers
Patricia A. Chambers Environment and Climate Change Canada
Daniel W. Smith
Daniel W. Smith University of Alberta
Bernadette Pinel-Alloul
Bernadette Pinel-Alloul University of Montreal
Steve E. Hrudey
Steve E. Hrudey University of Alberta
William M. Tonn
William M. Tonn University of Alberta
Dolors Planas
Dolors Planas University of Quebec at Montreal
Charles F. B. Holmes
Charles F. B. Holmes University of Alberta
Mohamed Gamal El-Din
Mohamed Gamal El-Din University of Alberta
Cynthia A. Paszkowski
Cynthia A. Paszkowski University of Alberta
John J. Gibson
John J. Gibson University of Victoria

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