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Hans-Otto Pörtner
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Ecology and Evolution
Germany
2026

D-Index & Metrics

Ecology and Evolution

D-Index
113
Citations
60023
World Ranking
141
National Ranking
10

Hans-Otto Pörtner publication distribution in Ecology and Evolution in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Ecology and Evolution in 2026. The highlighted bar marks where Hans-Otto Pörtner sits on this spectrum.

37–41 publications: 2 scientists 42–46 publications: 9 scientists 47–51 publications: 10 scientists 52–56 publications: 31 scientists 57–61 publications: 56 scientists 62–66 publications: 91 scientists 67–71 publications: 92 scientists 72–76 publications: 127 scientists 77–81 publications: 173 scientists 82–86 publications: 236 scientists 87–91 publications: 227 scientists 92–96 publications: 240 scientists 97–101 publications: 333 scientists 102–106 publications: 280 scientists 107–111 publications: 300 scientists 112–116 publications: 285 scientists 117–121 publications: 305 scientists 122–126 publications: 287 scientists 127–131 publications: 278 scientists 132–136 publications: 289 scientists 137–141 publications: 273 scientists 142–146 publications: 262 scientists 147–151 publications: 246 scientists 152–156 publications: 235 scientists 157–161 publications: 205 scientists 162–166 publications: 199 scientists 167–171 publications: 174 scientists 172–176 publications: 164 scientists 177–181 publications: 173 scientists 182–186 publications: 189 scientists 187–191 publications: 170 scientists 192–196 publications: 139 scientists 197–201 publications: 128 scientists 202–206 publications: 117 scientists 207–211 publications: 115 scientists 212–216 publications: 107 scientists 217–221 publications: 124 scientists 222–226 publications: 81 scientists 227–231 publications: 82 scientists 232–236 publications: 85 scientists 237–241 publications: 75 scientists 242–246 publications: 66 scientists 247–251 publications: 81 scientists 252–256 publications: 69 scientists 257–261 publications: 70 scientists 262–266 publications: 55 scientists 267–271 publications: 64 scientists 272–276 publications: 49 scientists 277–281 publications: 48 scientists 282–286 publications: 44 scientists 287–291 publications: 45 scientists 292–296 publications: 36 scientists 297–301 publications: 39 scientists 302–306 publications: 38 scientists 307–311 publications: 30 scientists 312–316 publications: 34 scientists 317–321 publications: 25 scientists 322–326 publications: 22 scientists 327–331 publications: 28 scientists 332–336 publications: 30 scientists 337–341 publications: 22 scientists 342–346 publications: 30 scientists 347–351 publications: 26 scientists 352–356 publications: 22 scientists 357–361 publications: 29 scientists 362–366 publications: 21 scientists 367–371 publications: 12 scientists 372–376 publications: 18 scientists 377–381 publications: 17 scientists 382–386 publications: 13 scientists 387–391 publications: 21 scientists 392–396 publications: 13 scientists 397–401 publications: 10 scientists 402–406 publications: 15 scientists 407–411 publications: 8 scientists 412–416 publications: 9 scientists 417–421 publications: 8 scientists 422–426 publications: 4 scientists 427–431 publications: 10 scientists 432–436 publications: 10 scientists 437–441 publications: 5 scientists 442–446 publications: 4 scientists 447–451 publications: 10 scientists 452–456 publications: 2 scientists 457–461 publications: 4 scientists 462–466 publications: 7 scientists 467–471 publications: 7 scientists 472–476 publications: 6 scientists 477–481 publications: 6 scientists 482–486 publications: 3 scientists 487–491 publications: 3 scientists 492–496 publications: 4 scientists 497–501 publications: 4 scientists 502–506 publications: 8 scientists 507–511 publications: 5 scientists 512–516 publications: 4 scientists 517–521 publications: 5 scientists 522–526 publications: 4 scientists 527–530 publications: 5 scientists 531+ publications: 100 scientists
37 publications 531+

This scientist: 659 publications — 100th percentile

100% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 531 publications or more.

Hans-Otto Pörtner D-index placement in Ecology and Evolution in 2026

The chart shows the D-index (discipline H-index) distribution of Ecology and Evolution scientists ranked by Research.com in 2026. The highlighted bar marks where Hans-Otto Pörtner sits on this spectrum.

30 D-Index: 95 scientists 31 D-Index: 123 scientists 32 D-Index: 191 scientists 33 D-Index: 245 scientists 34 D-Index: 252 scientists 35 D-Index: 244 scientists 36 D-Index: 249 scientists 37 D-Index: 244 scientists 38 D-Index: 254 scientists 39 D-Index: 254 scientists 40 D-Index: 280 scientists 41 D-Index: 274 scientists 42 D-Index: 266 scientists 43 D-Index: 233 scientists 44 D-Index: 248 scientists 45 D-Index: 208 scientists 46 D-Index: 201 scientists 47 D-Index: 213 scientists 48 D-Index: 207 scientists 49 D-Index: 172 scientists 50 D-Index: 209 scientists 51 D-Index: 199 scientists 52 D-Index: 153 scientists 53 D-Index: 169 scientists 54 D-Index: 163 scientists 55 D-Index: 148 scientists 56 D-Index: 120 scientists 57 D-Index: 146 scientists 58 D-Index: 137 scientists 59 D-Index: 140 scientists 60 D-Index: 104 scientists 61 D-Index: 119 scientists 62 D-Index: 118 scientists 63 D-Index: 99 scientists 64 D-Index: 77 scientists 65 D-Index: 100 scientists 66 D-Index: 86 scientists 67 D-Index: 83 scientists 68 D-Index: 75 scientists 69 D-Index: 94 scientists 70 D-Index: 57 scientists 71 D-Index: 68 scientists 72 D-Index: 59 scientists 73 D-Index: 63 scientists 74 D-Index: 66 scientists 75 D-Index: 60 scientists 76 D-Index: 42 scientists 77 D-Index: 49 scientists 78 D-Index: 39 scientists 79 D-Index: 37 scientists 80 D-Index: 43 scientists 81 D-Index: 41 scientists 82 D-Index: 45 scientists 83 D-Index: 34 scientists 84 D-Index: 40 scientists 85 D-Index: 35 scientists 86 D-Index: 55 scientists 87 D-Index: 24 scientists 88 D-Index: 24 scientists 89 D-Index: 30 scientists 90 D-Index: 23 scientists 91 D-Index: 25 scientists 92 D-Index: 27 scientists 93 D-Index: 27 scientists 94 D-Index: 13 scientists 95 D-Index: 23 scientists 96 D-Index: 12 scientists 97 D-Index: 14 scientists 98 D-Index: 19 scientists 99 D-Index: 16 scientists 100 D-Index: 14 scientists 101 D-Index: 5 scientists 102 D-Index: 21 scientists 103 D-Index: 16 scientists 104 D-Index: 10 scientists 105 D-Index: 7 scientists 106 D-Index: 7 scientists 107 D-Index: 7 scientists 108 D-Index: 6 scientists 109 D-Index: 9 scientists 110 D-Index: 11 scientists 111 D-Index: 12 scientists 112 D-Index: 9 scientists 113 D-Index: 7 scientists 114 D-Index: 3 scientists 115 D-Index: 8 scientists 116 D-Index: 5 scientists 117 D-Index: 11 scientists 118 D-Index: 4 scientists 119 D-Index: 2 scientists 120 D-Index: 5 scientists 121+ D-Index: 100 scientists
30 D-Index 121+

This scientist: 113 D-Index — 98th percentile

98% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 121 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Ecology and Evolution in Germany Leader Award
  • 2025 - Research.com Ecology and Evolution in Germany Leader Award

Overview

Hans-Otto Pörtner is affiliated with the Alfred Wegener Institute for Polar and Marine Research in Germany. Their research primarily spans Environmental Science and Earth and Planetary Sciences, with a focus on the following subfields:

  • Global and Planetary Change
  • Ecology
  • Oceanography
  • Management, Monitoring, Policy and Law
  • Nature and Landscape Conservation

The main topics covered in their work include:

  • Physiological and biochemical adaptations
  • Ocean Acidification Effects and Responses
  • Marine Bivalve and Aquaculture Studies
  • Sustainability and Climate Change Governance
  • Coral and Marine Ecosystems Studies
  • Fish Ecology and Management Studies
  • Aquaculture Nutrition and Growth

Hans-Otto Pörtner has contributed to multiple research publications, with recent papers including:

  • Thermal bottlenecks in the life cycle define climate vulnerability of fish (2020, Science)
  • A framework for complex climate change risk assessment (2021, One Earth)
  • Overcoming the coupled climate and biodiversity crises and their societal impacts (2023, Science)
  • Impacts of hypoxic events surpass those of future ocean warming and acidification (2021, Nature Ecology & Evolution)
  • IPBES-IPCC co-sponsored workshop report on biodiversity and climate change (2021, Wageningen University and Researchcenter Publications)

Frequent co-authors collaborating with Hans-Otto Pörtner include:

  • Debra Roberts
  • Panmao Zhai
  • Christian Bock
  • Valérie Masson-Delmotte
  • Gisela Lannig

The scientist's publications have appeared several times in prominent venues such as:

  • Journal of Experimental Biology
  • Scientific Reports
  • Science
  • Nature Climate Change
  • Zenodo (CERN European Organization for Nuclear Research)

In addition to journal articles, Hans-Otto Pörtner has authored book publications, including a title published by Maribus eBooks:

  • World ocean review: Mit den Meeren leben 7. Lebensgarant Ozean - nachhaltig nutzen, wirksam schützen (2021)

Best Publications

  • Physiology and Climate Change

    Hans O. Pörtner;Anthony P. Farrell

  • Climate change affects marine fishes through the oxygen limitation of thermal tolerance.

    Hans-Otto Pörtner;Rainer Knust

  • Climate variations and the physiological basis of temperature dependent biogeography: systemic to molecular hierarchy of thermal tolerance in animals.

    Hans-Otto Pörtner

  • Oxygen- and capacity-limitation of thermal tolerance: a matrix for integrating climate-related stressor effects in marine ecosystems.

    Hans-Otto Pörtner

  • Contrasting futures for ocean and society from different anthropogenic CO2 emissions scenarios

    J. P. Gattuso;J. P. Gattuso;A. Magnan;R. Bille;W. W. L. Cheung

  • Climate change and temperature-dependent biogeography: oxygen limitation of thermal tolerance in animals.

    Hans-Otto Pörtner

  • Climate change effects on fishes and fisheries: towards a cause-and-effect understanding

    Hans-Otto Pörtner;M. Peck

  • Ecosystem effects of ocean acidification in times of ocean warming: a physiologist’s view

    Hans-Otto Pörtner

  • Biological Impact of Elevated Ocean CO2 Concentrations: Lessons from Animal Physiology and Earth History

    Hans O. Pörtner;Martina Langenbuch;Anke Reipschläger

  • Effects of long-term moderate hypercapnia on acid-base balance and growth rate in marine mussels (Mytilus galloprovincialis)

    Basile Michaelidis;Christos Ouzounis;Andreas Paleras;Hans O. Pörtner

  • Impacts of ocean acidification on marine shelled molluscs

    Frédéric Gazeau;Frédéric Gazeau;Laura M. Parker;Steeve Comeau;Jean Pierre Gattuso;Jean Pierre Gattuso

  • Physiological basis for high CO2 tolerance in marine ectothermic animals: pre-adaptation through lifestyle and ontogeny?

    F. Melzner;Magdalena Gutowska;M. Langenbuch;S. Dupont

  • Climate change tightens a metabolic constraint on marine habitats

    Curtis Deutsch;Aaron Ferrel;Brad Seibel;Hans Otto Pörtner

  • Oxygen- and capacity-limited thermal tolerance: bridging ecology and physiology

    Hans-Otto Pörtner;Christian Bock;Felix Christopher Mark

  • Synergistic effects of temperature extremes, hypoxia, and increases in CO2 on marine animals: From Earth history to global change

    Hans O. Pörtner;Martina Langenbuch;Basile Michaelidis

  • Sensitivities of extant animal taxa to ocean acidification

    Astrid C. Wittmann;Hans-O. Pörtner

  • A framework for complex climate change risk assessment

    Nicholas P. Simpson;Katharine J. Mach;Andrew Constable;Jeremy Hess

  • Thermal bottlenecks in the life cycle define climate vulnerability of fish.

    Flemming T. Dahlke;Sylke Wohlrab;Sylke Wohlrab;Martin Butzin;Hans-Otto Pörtner;Hans-Otto Pörtner

  • Temperature-dependence of mitochondrial function and production of reactive oxygen species in the intertidal mud clam Mya arenaria

    Doris Abele;Katja Heise;Hans-Otto Pörtner;Susana Puntarulo

  • Physiological and metabolic responses to hypoxia in invertebrates

    M. K. Grieshaber;I. Hardewig;U. Kreutzer;Hans-Otto Pörtner

  • Adult exposure influences offspring response to ocean acidification in oysters

    Laura M. Parker;Pauline M. Ross;Wayne A. O'Connor;Larissa Borysko

  • Oxygen limitation of thermal tolerance defined by cardiac and ventilatory performance in spider crab, Maja squinado.

    Markus Frederich;Hans O. Pörtner

Frequent Co-Authors

Doris Abele
Doris Abele Alfred Wegener Institute for Polar and Marine Research
Thomas Brey
Thomas Brey University of Bremen
Jean-Pierre Gattuso
Jean-Pierre Gattuso Centre national de la recherche scientifique, CNRS
Inna M. Sokolova
Inna M. Sokolova University of Rostock
Klaus Anger
Klaus Anger Alfred Wegener Institute for Polar and Marine Research
Wolf Arntz
Wolf Arntz Alfred Wegener Institute for Polar and Marine Research
Guy Claireaux
Guy Claireaux University of Western Brittany
Miriam Fernández
Miriam Fernández Pontificia Universidad Católica de Chile
Wayne A. O'Connor
Wayne A. O'Connor New South Wales Department of Primary Industries
William W. L. Cheung
William W. L. Cheung University of British Columbia

External Links

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Related Online Degrees & Career Pathways

Studying Ecology and Evolution opens doors to diverse career options. Many graduates pursue work in research, education, or conservation. However, some choose alternative paths that intersect with people-focused fields where understanding complex systems is equally valuable.

For those interested in combining science with counseling or advocacy, consider an online degree in human services. These programs prepare students to support individuals and communities, leveraging knowledge from areas like ecology to impact policy and wellbeing.

Others may be drawn to mental health services. An online master's degree in counseling or one of the best online clinical psychology programs provides advanced skills for those interested in helping people thrive amidst life’s challenges.

For a career change from education, professionals may explore the education required to be a speech pathologist. This rewarding field benefits greatly from communication, analytical, and scientific skills cultivated through ecology-related studies.

Best Scientists Citing Hans-Otto Pörtner

Philip L. Munday

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Lloyd S. Peck

Lloyd S. Peck

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Piero Calosi

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Inna M. Sokolova

Inna M. Sokolova

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Sven Thatje

Sven Thatje

National Oceanography Centre

Publications: 78

Maria Byrne

Maria Byrne

University of Sydney

Publications: 74

William W. L. Cheung

William W. L. Cheung

University of British Columbia

Publications: 66

Anthony P. Farrell

Anthony P. Farrell

University of British Columbia

Publications: 63

Rui Rosa

Rui Rosa

University of Lisbon

Publications: 59

Doris Abele

Doris Abele

Alfred Wegener Institute for Polar and Marine Research

Publications: 59

Jean-Pierre Gattuso

Jean-Pierre Gattuso

Centre national de la recherche scientifique, CNRS

Publications: 57

John I. Spicer

John I. Spicer

Plymouth University

Publications: 55

Carlos M. Duarte

Carlos M. Duarte

King Abdullah University of Science and Technology

Publications: 53

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Myron A. Peck

Royal Netherlands Institute for Sea Research

Publications: 53

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University of South Florida St. Petersburg

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Jennifer M. Donelson

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