World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
61
Citations
12906
World Ranking
2791
National Ranking
1107

Mark D. Ohman 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 Mark D. Ohman 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: 282 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: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 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 681–689 publications: 4 scientists 690+ publications: 100 scientists
41 publications 690+

This scientist: 245 publications — 77th percentile

77% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

Mark D. Ohman 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 Mark D. Ohman 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: 198 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: 20 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: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 61 D-Index — 72nd percentile

72% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Research.com Recognitions

  • 2014 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Mark D. Ohman is affiliated with the University of California, San Diego in the United States. Their research primarily spans the fields of Earth and Planetary Sciences and Environmental Science, with a significant focus on Oceanography and Ecology among related subfields. Additionally, their work covers Global and Planetary Change, Atmospheric Science, and Nature and Landscape Conservation.

Ohman's research topics reflect a strong emphasis on marine environments, including Marine and Coastal Ecosystems, Marine and Fisheries Research, Oceanographic and Atmospheric Processes, Microbial Community Ecology and Physiology, Marine Biology and Ecology Research, Isotope Analysis in Ecology, and Fish Ecology and Management Studies.

The following is a selection of recent publications authored or co-authored by Ohman:

  • "Machine learning techniques to characterize functional traits of plankton from image data," 2022, Limnology and Oceanography
  • "Timing is everything: Drivers of interannual variability in blue whale migration," 2020, Scientific Reports
  • "Marine Pelagic Ecosystem Responses to Climate Variability and Change," 2022, BioScience
  • "Vertical niche definition of test-bearing protists (Rhizaria) into the twilight zone revealed by in situ imaging," 2020, Limnology and Oceanography
  • "Cross-Shore Flow and Implications for Carbon Export in the California Current Ecosystem: A Lagrangian Analysis," 2020, Journal of Geophysical Research Oceans

Frequent co-authors in Ohman's work include:

  • Michael R. Stukel (5 co-authored publications)
  • Michael R. Landry (5 co-authored publications)
  • Stephanie A. Matthews (3 co-authored publications)
  • Andrew R. Thompson (3 co-authored publications)
  • Jeffrey Ellen (2 co-authored publications)

Ohman has published multiple times in several key scientific venues, with their most frequent publication venues listed as:

  • Limnology and Oceanography (8 publications)
  • Journal of Geophysical Research Oceans (3 publications)
  • BioScience (2 publications)
  • Nature Communications (2 publications)
  • Limnology and Oceanography Methods (2 publications)

Among the awards received, Ohman was named a Fellow of the American Association for the Advancement of Science (AAAS) in 2014.

Best Publications

  • Long-term aging and degradation of microplastic particles: Comparing in situ oceanic and experimental weathering patterns.

    Jennifer Brandon;Miriam Goldstein;Mark D. Ohman

  • Digital zooplankton image analysis using the ZooScan integrated system

    Gaby Gorsky;Gaby Gorsky;Mark D. Ohman;Marc Picheral;Marc Picheral;Stéphane Gasparini;Stéphane Gasparini

  • Trait-based approaches to zooplankton communities

    Elena Litchman;Elena Litchman;Mark D. Ohman;Thomas Kiørboe

  • Reverse Diel Vertical Migration: An Escape from Invertebrate Predators

    Mark D. Ohman;Bruce W. Frost;Edward B. Cohen

  • The Demographic Benefits of Diel Vertical Migration by Zooplankton

    Mark D. Ohman

  • Sustained fecundity when phytoplankton resources are in short supply: Omnivory by Calanus finmarchicus in the Gulf of St. Lawrence

    Mark D. Ohman;Jefrey A. Runge

  • Globally consistent quantitative observations of planktonic ecosystems

    F. Lombard;F. Lombard;E. Boss;A.M. Waite;J. Uitz

  • Multidecadal increase in plastic particles in coastal ocean sediments.

    Jennifer A. Brandon;William Jones;Mark D. Ohman

  • Analysis of abrupt transitions in ecological systems

    Brandon T. Bestelmeyer;Aaron M. Ellison;William R. Fraser;Kristen B. Gorman

  • Density-dependent mortality in an oceanic copepod population

    M. D. Ohman;Hans-Jürgen Hirche

  • Coherence of long-term variations of zooplankton in two sectors of the California Current System

    Bertha E. Lavaniegos;Mark D. Ohman

  • Planktivorous auklet Ptychoramphus aleuticus responses to ocean climate, 2005: Unusual atmospheric blocking?

    William J. Sydeman;Russell W. Bradley;Pete Warzybok;Christine L. Abraham

  • Lagrangian studies of phytoplankton growth and grazing relationships in a coastal upwelling ecosystem off Southern California

    Michael R. Landry;Mark D. Ohman;Ralf Goericke;Michael R. Stukel

  • Long-term changes in pelagic tunicates of the California Current

    Bertha E. Lavaniegos;Mark D. Ohman

  • Planktonic Foraminifera of the California Current Reflect 20th-Century Warming

    David B. Field;Timothy R. Baumgartner;Christopher D. Charles;Vicente Ferreira-Bartrina

  • Synthesis of Pacific Ocean Climate and Ecosystem Dynamics

    Emanuele Di Lorenzo;Vincent Combes;Julie E. Keister;P. Ted Strub

  • Mesoscale ocean fronts enhance carbon export due to gravitational sinking and subduction

    Michael R. Stukel;Lihini I. Aluwihare;Katherine A. Barbeau;Alexander M. Chekalyuk

  • Robust empirical relationships for estimating the carbonate system in the southern California Current System and application to CalCOFI hydrographic cruise data (2005–2011)

    Simone R. Alin;Richard A. Feely;Andrew G. Dickson;J. Martín Hernández-Ayón

  • Zooplankton anomalies in the California Current system before and during the warm ocean conditions of 2005

    D. L. Mackas;W. T. Peterson;M. D. Ohman;B. E. Lavaniegos

  • A double-integration hypothesis to explain ocean ecosystem response to climate forcing.

    Emanuele Di Lorenzo;Mark D. Ohman

  • Growth kinetics of the omnivorous oligotrich ciliate Strombidium sp

    Mark D. Ohman;Richard A. Snyder

Frequent Co-Authors

Marc Picheral
Marc Picheral Université Paris Cité
Lars Stemmann
Lars Stemmann Sorbonne University
Stephane Pesant
Stephane Pesant University of Bremen
Gabriel Gorsky
Gabriel Gorsky Sorbonne University
Ralf Goericke
Ralf Goericke Scripps Institution of Oceanography
Michael R. Landry
Michael R. Landry University of California, San Diego
Jeffrey A. Runge
Jeffrey A. Runge University of Maine
Peter Franks
Peter Franks University of California, Davis
Dag L. Aksnes
Dag L. Aksnes University of Bergen
William T. Peterson
William T. Peterson National Marine Fisheries Service

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