Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
organic geochemistry
microbiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
844
695
0.823
* Total i10 IndexRankings
Ranking Based On Selection :2
Conservation
Coral
Seagrass
Mangrove
Restoration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
539
183
0.340
* Total i10 IndexRankings
Ranking Based On Selection :3
Coastal Systems
Climate Change
Impacts
Adaptation
Integrated Assessment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
410
302
0.737
* Total i10 IndexRankings
Ranking Based On Selection :4
Marine Biology
Deep-sea Biology
Marine Ecology
Microbial Ecology
Marine Biodiversity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
378
304
0.804
* Total i10 IndexRankings
Ranking Based On Selection :5
Marine biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
351
293
0.835
* Total i10 IndexRankings
Ranking Based On Selection :6
coastal and estuarine ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
332
306
0.922
* Total i10 IndexRankings
Ranking Based On Selection :7
marine mammals
ecology
population biology
climate change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
317
232
0.732
* Total i10 IndexRankings
Ranking Based On Selection :8
marine biology
ecology
conservation
fisheries
cephalopods
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
303
216
0.713
* Total i10 IndexRankings
Ranking Based On Selection :9
Marine ecology
benthos
macrophytes
Posidonia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
303
130
0.429
* Total i10 IndexRankings
Ranking Based On Selection :10
marine biology
biomechanics
anatomy and physiology of fish and turtles
ecotoxicology
ecophysiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
301
125
0.415
* Total i10 IndexRankings
Ranking Based On Selection :11
Environmental and Occupational Health and Epidemiology
Public Health
Oceans and Human Health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
300
209
0.697
* Total i10 IndexRankings
Ranking Based On Selection :12
Paleoceanography and Micropaleontology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
300
198
0.660
* Total i10 IndexRankings
Ranking Based On Selection :13
marine ecology
benthic ecology
ecosystem-based management
marine assessment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
297
237
0.798
* Total i10 IndexRankings
Ranking Based On Selection :14
Aquatic microbial ecology
ocean biogeochemistry
marine microbiology
microbial oceanography
biological oceanography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
290
229
0.790
* Total i10 IndexRankings
Ranking Based On Selection :15
ciencias marinas
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
287
171
0.596
* Total i10 IndexRankings
Ranking Based On Selection :16
Marine Geosciences
Anthropogenic impacts
Biogeochemistry
Global change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
280
201
0.718
* Total i10 IndexRankings
Ranking Based On Selection :17
Paleoclimate Dynamics
Ocean
Climate Change
Polar Science
Earth System Modeling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
276
226
0.819
* Total i10 IndexRankings
Ranking Based On Selection :18
Arctic Ocean Paleoceanography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
274
150
0.547
* Total i10 IndexRankings
Ranking Based On Selection :19
Microplastics
ecology of coastal defences
marine ecology
marine pollution
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
264
235
0.890
* Total i10 IndexRankings
Ranking Based On Selection :20
Coastal Engineering
Ocean Engineering
Climate Change
Marine Renewables
Civil Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
258
203
0.787
* Total i10 IndexRankings
Ranking Based On Selection :21
Benthic ecology
Marine conservation
Gelatinous zooplankton
Ocean Literacy
Cnidarian Taxonomy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
255
149
0.584
* Total i10 IndexRankings
Ranking Based On Selection :22
Geophysics
Seismology
Earth Sciences
Geosciences
Marine Geophysics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
254
124
0.488
* Total i10 IndexRankings
Ranking Based On Selection :23
estuaries
marine ecology
human impacts
marine policy
coasts
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
252
195
0.774
* Total i10 IndexRankings
Ranking Based On Selection :24
oceanography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
248
178
0.718
* Total i10 IndexRankings
Ranking Based On Selection :25
Environmental modelling
marine biogeochemistry
food webs
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
247
180
0.729
Jaap Sinninghe Damste
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
844
695
0.823
organic geochemistry
microbiology
David J Smith
University of Essex
Colchester, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
539
183
0.340
Conservation
Coral
Seagrass
Mangrove
Restoration
Robert J Nicholls
University of East Anglia
Norwich, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
410
302
0.737
Coastal Systems
Climate Change
Impacts
Adaptation
Integrated Assessment
Roberto Danovaro
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
378
304
0.804
Marine Biology
Deep-sea Biology
Marine Ecology
Microbial Ecology
Marine Biodiversity
Bo Barker Jørgensen
Aarhus University
Aarhus, Denmark
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
351
293
0.835
Marine biogeochemistry
Tjeerd J Bouma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
332
306
0.922
coastal and estuarine ecology
Kit M. Kovacs
Norwegian Polar Institute
Tromsø, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
317
232
0.732
marine mammals
ecology
population biology
climate change
Graham Pierce
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
303
216
0.713
marine biology
ecology
conservation
fisheries
cephalopods
Charles François Boudouresque
Université D'Aix Marseille
Marseille, France
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
303
130
0.429
Marine ecology
benthos
macrophytes
Posidonia
John Davenport
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
301
125
0.415
marine biology
biomechanics
anatomy and physiology of fish and turtles
ecotoxicology
ecophysiology
Lora E Fleming
University of Exeter
Exeter, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
300
209
0.697
Environmental and Occupational Health and Epidemiology
Public Health
Oceans and Human Health
Jose-Abel Flores
Universidad de Salamanca
Salamanca, Spain
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
300
198
0.660
Paleoceanography and Micropaleontology
Angel Borja
AZTI-Tecnalia
Bangkok, Spain
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
297
237
0.798
marine ecology
benthic ecology
ecosystem-based management
marine assessment
Josep M Gasol
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
290
229
0.790
Aquatic microbial ecology
ocean biogeochemistry
marine microbiology
microbial oceanography
biological oceanography
Javier Ruiz
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
287
171
0.596
Miquel Canals
Universitat de Barcelona
Barcelona, Spain
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
280
201
0.718
Marine Geosciences
Anthropogenic impacts
Biogeochemistry
Global change
Gerrit Lohmann
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
276
226
0.819
Paleoclimate Dynamics
Ocean
Climate Change
Polar Science
Earth System Modeling
Ruediger Stein
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
274
150
0.547
Arctic Ocean Paleoceanography
Richard Thompson
University of Plymouth
Plymouth, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
264
235
0.890
Microplastics
ecology of coastal defences
marine ecology
marine pollution
Iñigo J. Losada
Universidad de Cantabria
Santander, Spain
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
258
203
0.787
Coastal Engineering
Ocean Engineering
Climate Change
Marine Renewables
Civil Engineering
Josep-Maria Gili
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
255
149
0.584
Benthic ecology
Marine conservation
Gelatinous zooplankton
Ocean Literacy
Cnidarian Taxonomy
Satish Singh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
254
124
0.488
Geophysics
Seismology
Earth Sciences
Geosciences
Marine Geophysics
Michael Mike Elliott
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
252
195
0.774
estuaries
marine ecology
human impacts
marine policy
coasts
Shubha Sathyendranath
Plymouth Marine Laboratory
Plymouth, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
248
178
0.718
Karline Soetaert
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
247
180
0.729
Environmental modelling
marine biogeochemistry
food webs