World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
49
Citations
8282
World Ranking
5279
National Ranking
184

David T. Welsh 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 David T. Welsh 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: 128 publications — 29th percentile

29% of scientists in this discipline score the same or lower.

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

David T. Welsh 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 David T. Welsh 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: 49 D-Index — 47th percentile

47% of scientists in this discipline score the same or lower.

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

Overview

David T. Welsh is affiliated with Griffith University in Australia, where their research focuses on environmental science and earth and planetary sciences. The scientist has contributed extensively to the study of coastal and marine ecosystems, with particular attention to ecosystem dynamics and pollution effects in aquatic environments.

Their published work includes research papers in well-known venues such as Marine Pollution Bulletin, Limnology and Oceanography, and The Science of The Total Environment. Key recent publications include:

  • Extreme eutrophication and salinisation in the Coorong estuarine-lagoon ecosystem of Australia's largest river basin (Murray-Darling), 2023, Marine Pollution Bulletin
  • Denitrification, anammox, and dissimilatory nitrate reduction to ammonium across a mosaic of estuarine benthic habitats, 2020, Limnology and Oceanography
  • Trophic transfer of microbeads to jellyfish and the importance of aging microbeads for microplastic experiments, 2021, Marine Pollution Bulletin
  • Loss of benthic macrofauna functional traits correlates with changes in sediment biogeochemistry along an extreme salinity gradient in the Coorong lagoon, Australia, 2021, Marine Pollution Bulletin
  • Limited ingestion, rapid egestion and no detectable impacts of microbeads on the moon jellyfish, Aurelia aurita, 2020, Marine Pollution Bulletin

Welsh's research explores several main topics, including:

  • Coastal wetland ecosystem dynamics
  • Marine bivalve and aquaculture studies
  • Marine and coastal ecosystems
  • Microplastics and plastic pollution
  • Marine biology and ecology research
  • Geochemistry and elemental analysis
  • Soil erosion and sediment transport

Their expertise extends into numerous subfields such as ecology, oceanography, global and planetary change, pollution, and geochemistry and petrology. This multidisciplinary approach supports investigations into biogeochemical processes and environmental impacts within estuarine and lagoon systems.

Frequent collaborators in Welsh's scientific efforts include:

  • William W. Bennett
  • Luke M. Mosley
  • Nicholas J.C. Doriean
  • Justin D. Brookes
  • Jianyin Huang

Welsh's body of work is published predominantly in Marine Pollution Bulletin, reflecting their sustained interest in marine environmental issues. Other notable venues include Limnology and Oceanography, The Science of The Total Environment, Frontiers in Earth Science, and Talanta.

Across their publications, Welsh engages with environmental science themes predominantly, with a focus on how changes in salinity, pollution, and nutrient dynamics influence coastal and estuarine ecosystems. The work contributes to understanding aquatic ecosystem functions and responses to human and natural influences.

Best Publications

  • Ecological significance of compatible solute accumulation by micro‐organisms: from single cells to global climate

    David Thomas Welsh

  • Impact of urbanization on coastal wetland structure and function

    Shing Yip Lee;Shing Yip Lee;Ryan Jay Keith Dunn;Ruth Anne Young;Rod Martin Connolly;Rod Martin Connolly

  • Removing ammonium from water and wastewater using cost-effective adsorbents: A review.

    Jianyin Huang;Jianyin Huang;Nadeeka Rathnayake Kankanamge;Christopher Chow;David T. Welsh

  • Nitrogen fixation in seagrass meadows: Regulation, plant–bacteria interactions and significance to primary productivity

    David Thomas Welsh

  • Influence of jellyfish blooms on carbon, nitrogen and phosphorus cycling and plankton production

    Kylie Anne Pitt;David Thomas Welsh;Robert H. Condon

  • It's a dirty job but someone has to do it: The role of marine benthic macrofauna in organic matter turnover and nutrient recycling to the water column

    David Thomas Welsh

  • Impact of clam and mussel farming on benthic metabolism and nitrogen cycling, with emphasis on nitrate reduction pathways

    Daniele Nizzoli;David Thomas Welsh;Elisa Anna Fano;Pierluigi Viaroli

  • Denitrification, nitrogen fixation, community primary productivity and inorganic-N and oxygen fluxes in an intertidal Zostera noltii meadow

    David T. Welsh;Marco Bartoli;Daniele Nizzoli;Giuseppe Castaldelli

  • Sulphate reduction and nitrogen fixation rates associated with roots, rhizomes and sediments from Zostera noltii and Spartina maritima meadows.

    Lise B. Nielsen;Kai Finster;David T. Welsh;Andrew Donelly

  • Osmotically induced intracellular trehalose, but not glycine betaine accumulation promotes desiccation tolerance in Escherichia coli

    David T. Welsh;Rodney A. Herbert

  • Iron, sulphur and phosphorus cycling in the rhizosphere sediments of a eutrophic Ruppia cirrhosa meadow (Valle Smarlacca, Italy)

    Roberta Azzoni;Gianmarco Giordani;Marco Bartoli;David T Welsh

  • New diffusive gradients in a thin film technique for measuring inorganic arsenic and selenium(IV) using a titanium dioxide based adsorbent.

    William W. Bennett;Peter R. Teasdale;Jared G. Panther;David T. Welsh

  • Seasonal variations in nitrogen-fixation (acetylene reduction) and sulphate-reduction rates in the rhizosphere of Zostera noltii: nitrogen fixation by sulphate-reducing bacteria

    D. T. Welsh;S. Bourgués;R. de Wit;R. A. Herbert

  • ROBUST: The ROle of BUffering capacities in STabilising coastal lagoon ecosystems

    R. De Wit;L.J. Stal;B.A. Lomstein;R.A. Herbert

  • Diffusive Gradients in Thin Films Reveals Differences in Antimony and Arsenic Mobility in a Contaminated Wetland Sediment during an Oxic-Anoxic Transition.

    Maja Arsic;Peter R Teasdale;David Thomas Welsh;Scott G Johnston

  • Implications for oxygen, nutrient fluxes and denitrification rates during the early stage of sediment colonisation by the polychaete Nereis spp. in four estuaries

    Daniele Nizzoli;Marco Bartoli;Martin Cooper;David Thomas Welsh

  • Titanium dioxide-based DGT technique for in situ measurement of dissolved reactive phosphorus in fresh and marine waters.

    Jared G. Panther;Peter R. Teasdale;William W. Bennett;David T. Welsh

  • Speciation of dissolved inorganic arsenic by diffusive gradients in thin films: selective binding of AsIII by 3-mercaptopropyl-functionalized silica gel

    William W. Bennett;Peter R. Teasdale;Jared G. Panther;David T. Welsh

  • Impacts of shrimp farm effluent on water quality, benthic metabolism and N-dynamics in a mangrove forest (New Caledonia)

    Nathalie Molnar;David Thomas Welsh;Cyril Marchand;Jonathan Deborde

  • Impacts of mussel (mytilus galloprovincialis) farming on oxygen consumption and nutrient recycling in a eutrophic coastal lagoon

    Daniele Nizzoli;David Thomas Welsh;Marco Bartoli;Pierluigi Viaroli

Frequent Co-Authors

Peter R. Teasdale
Peter R. Teasdale University of South Australia
Pierluigi Viaroli
Pierluigi Viaroli University of Parma
Marco Bartoli
Marco Bartoli University of Parma
Dianne F. Jolley
Dianne F. Jolley University of Wollongong
Kylie Anne Pitt
Kylie Anne Pitt Griffith University
Huijun Zhao
Huijun Zhao Griffith University
Laurent Seuront
Laurent Seuront Centre national de la recherche scientifique, CNRS
Tarik Meziane
Tarik Meziane French National Museum of Natural History
G. Giordani
G. Giordani University of Parma
Nathan J. Waltham
Nathan J. Waltham James Cook University

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