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David L. Kirchman

D-Index & Metrics

Biology and Biochemistry

D-Index
103
Citations
35181
World Ranking
1324
National Ranking
774

David L. Kirchman 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 David L. Kirchman 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: 413 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 848 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 949 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 840 scientists 207–216 publications: 733 scientists 217–226 publications: 708 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: 417 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: 196 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: 59 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: 269 publications — 72nd percentile

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

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

David L. Kirchman 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 David L. Kirchman sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 316 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 899 scientists 52–53 D-Index: 1,025 scientists 54–55 D-Index: 1,149 scientists 56–57 D-Index: 1,235 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,162 scientists 62–63 D-Index: 1,130 scientists 64–65 D-Index: 1,031 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 714 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: 71 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: 103 D-Index — 93rd percentile

93% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

David L. Kirchman is affiliated with the University of Delaware in the United States. Their research focuses primarily on Earth and Planetary Sciences with significant contributions to Environmental Science. Within these broad fields, their work centers on subfields including Oceanography, Atmospheric Science, Ecology, Molecular Biology, and Environmental Chemistry.

The scientist has authored multiple papers covering a variety of marine and atmospheric topics. Major topics of their research include Marine and Coastal Ecosystems, Arctic and Antarctic Ice Dynamics, Oceanographic and Atmospheric Processes, Microbial Community Ecology and Physiology, Methane Hydrates and Related Phenomena, Ocean Acidification Effects and Responses, and Marine and Fisheries Research.

Recent publications by David L. Kirchman include:

  • The Changing CO2 Sink in the Western Arctic Ocean From 1994 to 2019, 2021, published in Global Biogeochemical Cycles
  • Climate and Human-Driven Variability of Summer Hypoxia on a Large River-Dominated Shelf as Revealed by a Hypoxia Index, 2021, published in Frontiers in Marine Science
  • Seasonal Water Mass Evolution and Non-Redfield Dynamics Enhance CO2 Uptake in the Chukchi Sea, 2022, published in Journal of Geophysical Research Oceans
  • Carbonate Parameter Estimation and Its Application in Revealing Temporal and Spatial Variation in the South and Mid-Atlantic Bight, USA, 2022, published in Journal of Geophysical Research Oceans
  • Controls of SAR11 subclade abundance, diversity, and growth in two Mid-Atlantic estuaries, 2022, published in bioRxiv (Cold Spring Harbor Laboratory)

Frequent co-authors with whom David L. Kirchman has collaborated include Wei-Jun Cai, Zhangxian Ouyang, Yun Li, Di Qi, and Akihiko Murata.

The scientist regularly publishes in venues such as Journal of Geophysical Research Oceans, Global Biogeochemical Cycles, Frontiers in Marine Science, bioRxiv (Cold Spring Harbor Laboratory), and Limnology and Oceanography Bulletin.

Best Publications

  • Microbial production of recalcitrant dissolved organic matter: long-term carbon storage in the global ocean.

    Nianzhi Jiao;Gerhard J. Herndl;Dennis A. Hansell;Ronald Benner

  • The ecology of Cytophaga–Flavobacteria in aquatic environments

    David L. Kirchman

  • Natural Assemblages of Marine Proteobacteria and Members of the Cytophaga-Flavobacter Cluster Consuming Low- and High-Molecular-Weight Dissolved Organic Matter

    Matthew T. Cottrell;David L. Kirchman

  • Leucine incorporation and its potential as a measure of protein synthesis by bacteria in natural aquatic systems.

    D Kirchman;E K'nees;R Hodson

  • Microbial Ecology of the Oceans

    David L. Kirchman

  • The molecularly-uncharacterized component of nonliving organic matter in natural environments

    JI Hedges;G Eglinton;PG Hatcher;DL Kirchman

  • The oceanic gel phase: a bridge in the DOM-POM continuum

    Pedro Verdugo;Alice L. Alldredge;Farooq Azam;David L. Kirchman

  • Ecology of the rare microbial biosphere of the Arctic Ocean

    Pierre E. Galand;Emilio O. Casamayor;David L. Kirchman;Connie Lovejoy

  • Activity of abundant and rare bacteria in a coastal ocean.

    Barbara J. Campbell;Liying Yu;John F. Heidelberg;David L. Kirchman

  • The Uptake of Inorganic Nutrients by Heterotrophic Bacteria

    David L. Kirchman

  • Community Composition of Marine Bacterioplankton Determined by 16S rRNA Gene Clone Libraries and Fluorescence In Situ Hybridization

    Matthew T. Cottrell;David L. Kirchman

  • Utilization of inorganic and organic nitrogen by bacteria in marine systems1

    Patricia A. Wheeler;David L. Kirchman

  • High turnover rates of dissolved organic carbon during a spring phytoplankton bloom

    David L. Kirchman;Yoshimi Suzuki;Christopher Garside;Hugh W. Ducklow

  • Leucine Incorporation as a Measure of Biomass Production by Heterotrophic Bacteria

    David L. Kirchman

  • Bacterial diversity, community structure and potential growth rates along an estuarine salinity gradient.

    Barbara J Campbell;David L Kirchman

  • Microbial growth in the polar oceans — role of temperature and potential impact of climate change

    David L. Kirchman;Xosé Anxelu G. Morán;Hugh Ducklow

  • Attachment Stimulates Exopolysaccharide Synthesis by a Bacterium

    Philippe Vandevivere;David L. Kirchman

  • Measuring bacterial biomass production and growth rates from leucine incorporation in natural aquatic environments

    David Kirchman

  • Chitinases from uncultured marine microorganisms.

    Matthew T. Cottrell;Jessica A. Moore;David L. Kirchman

  • Laboratory evidence for microbially mediated silicate mineral dissolution in nature

    William J. Ullman;David L. Kirchman;Susan A. Welch;Philippe Vandevivere

Frequent Co-Authors

Matthew T. Cottrell
Matthew T. Cottrell University of Delaware
Toshi Nagata
Toshi Nagata University of Tokyo
Richard G. Keil
Richard G. Keil University of Washington
Rolf Gradinger
Rolf Gradinger University of Tromsø - The Arctic University of Norway
Farooq Azam
Farooq Azam University of California, San Diego
Nianzhi Jiao
Nianzhi Jiao Xiamen University
Connie Lovejoy
Connie Lovejoy Université Laval
Michael T. Montgomery
Michael T. Montgomery Naval Postgraduate School
Patricia A. Wheeler
Patricia A. Wheeler Oregon State University
Philippe Lebaron
Philippe Lebaron Laboratoire de Biodiversité et Biotechnologies Microbiennes

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