Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,690 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 2
Joshua Cinner
social-ecological systems
geography
small-scale fisheries
human dimensions
conservation
Metrics
H-Index
i10 Index
Citation
96
177
27,704
* Rankings
Ranking Based On Selection: 3
Colin Simpfendorfer
Sharks and rays
elasmobranch fisheries
acoustic telemetry
Metrics
H-Index
i10 Index
Citation
95
327
32,259
* Rankings
Ranking Based On Selection: 4
Susan GW Laurance
Tropical Forest Ecology and Conservation Science
Metrics
H-Index
i10 Index
Citation
74
142
34,831
* Rankings
Ranking Based On Selection: 7
Chaoshu Zeng
Aqauculture
ecophysiology of marine organisms
crustacean biology
toxicology
biological rhythms
Metrics
H-Index
i10 Index
Citation
48
114
6,966
* Rankings
Ranking Based On Selection: 8
Sean Sloan
land change
forest change and use
human dimensions of land change
conservation
REDD
Metrics
H-Index
i10 Index
Citation
47
67
9,502
* Rankings
Ranking Based On Selection: 9
Jodie L Rummer
fish physiology
evolution
climate change
conservation biology
ecological physiology
Metrics
H-Index
i10 Index
Citation
45
100
5,850
* Rankings
Ranking Based On Selection: 10
Robert Coles
Seagrass
Coastal Management
Fisheries
Metrics
H-Index
i10 Index
Citation
45
102
8,289

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Rankings
Ranking Based On Selection: 12
Andrew Tobin
Fisheries
fisheries management
fisheries biology
fisheries ecology
Metrics
H-Index
i10 Index
Citation
40
80
4,403
* Rankings
Ranking Based On Selection: 13
Darren Crayn
Plant Systematics
Evolution
Biogeography
Metrics
H-Index
i10 Index
Citation
38
78
6,265
* Rankings
Ranking Based On Selection: 14
Kyall Zenger
Aquaculture
Genomics
Animal production
Metrics
H-Index
i10 Index
Citation
37
96
5,973
* Rankings
Ranking Based On Selection: 15
David Williamson
Marine Science
Ecology
Fisheries
Conservation
Marine Park Management
Metrics
H-Index
i10 Index
Citation
35
52
5,521
* Rankings
Ranking Based On Selection: 16
Geoff Inman Bamber
Agriculture
sugarcane
modelling
plant physiology
Metrics
H-Index
i10 Index
Citation
35
72
5,272
* Rankings
Ranking Based On Selection: 18
Amy Diedrich
Sustainable livelihoods
Small-scale fisheries
Tourism
Small-scale aquaculture
Marine Protected Areas
Metrics
H-Index
i10 Index
Citation
31
43
3,382
* Rankings
Ranking Based On Selection: 19
Andrew Chin
Fisheries
sharks and rays
marine parks
state of the environment
conservation biology
Metrics
H-Index
i10 Index
Citation
31
68
3,035
* Rankings
Ranking Based On Selection: 20
Kátya Abrantes
Aquatic Ecology
Stable isotope analysis
Metrics
H-Index
i10 Index
Citation
31
51
3,376
* Rankings
Ranking Based On Selection: 21
Rebecca Weeks
Conservation planning
fisheries co-management
Metrics
H-Index
i10 Index
Citation
30
41
3,768
* Rankings
Ranking Based On Selection: 22
Reniel B Cabral
fisheries
marine ecology
conservation biology
marine protected areas
Metrics
H-Index
i10 Index
Citation
30
39
3,673
* Rankings
Ranking Based On Selection: 23
Françoise Yoko Ishida
Plant ecophysiology
stable isotope
tropical ecosystems
climate change on biodiveristy
Metrics
H-Index
i10 Index
Citation
29
40
5,073
* Rankings
Ranking Based On Selection: 25
Jan Robinson
Small-scale fisheries
fisheries management
coral reef ecology
fish behaviour
social-ecological systems
Metrics
H-Index
i10 Index
Citation
25
37
3,440
* Rankings
Ranking Based On Selection: 26
Renae Tobin
Fisheries
Human dimensions
Marine science
Metrics
H-Index
i10 Index
Citation
24
30
2,163
* Rankings
Ranking Based On Selection: 27
Daniel Montesinos
Plant ecology and evolution
biogeography
invasive plants
reproductive ecology
Metrics
H-Index
i10 Index
Citation
20
31
1,307
* Rankings
Ranking Based On Selection: 28
Jose A Domingos
Aquaculture Propagation
Genetics & Selective Breeding
Metrics
H-Index
i10 Index
Citation
18
27
1,246
* Rankings
Ranking Based On Selection: 30
Jacqueline Lau
Environmental social science
climate change
coastal communities
morality
Metrics
H-Index
i10 Index
Citation
17
21
2,223
* Rankings
Ranking Based On Selection: 31
Brian Collins|Behnam Ababaei, بهنام آبابایی
Crop Physiology
Crop Modelling
Climate Change Impact and Adaptation
Metrics
H-Index
i10 Index
Citation
17
31
1,519
* Rankings
Ranking Based On Selection: 33
Tasmin Rymer
Animal Behaviour
Behavioural Ecology
Evolutionary Biology
Zoology
Mammalogy
Metrics
H-Index
i10 Index
Citation
17
34
848
* Rankings
Ranking Based On Selection: 34
Susan Gibson Kueh
Aquatic Animal Health
Fish Disease Research
Biosecurity
Aquaculture
Metrics
H-Index
i10 Index
Citation
17
22
1,275
* Rankings
Ranking Based On Selection: 35
Brock Bergseth
conservation
human behaviour change
fisheries
poaching
illegal fishing
Metrics
H-Index
i10 Index
Citation
14
16
940
* Rankings
Ranking Based On Selection: 37
Giana Bastos Gomes
Aquatic Animal Health
Genetics
Disease
Aquaculture
Metrics
H-Index
i10 Index
Citation
12
13
452
* Rankings
Ranking Based On Selection: 38
Leoncio Julio Ugarte-Guerra
Climate Change
Agroforestry
Forestry
Plantation
Amazon
Metrics
H-Index
i10 Index
Citation
12
13
355
* Rankings
Ranking Based On Selection: 39
Emmanuel Opoku Acheampong
Forest management
roads improvement
rural livelihoods development
sustainable environmental development and management
Metrics
H-Index
i10 Index
Citation
10
10
457
* Rankings
Ranking Based On Selection: 41
Leo Nankervis
Aquaculture
Nutrition
digestive physiology
Metrics
H-Index
i10 Index
Citation
10
10
432
Nicolas Neveux
Aquaculture
Algae
Seaweed
Bioremediation
Biofuels
Metrics
H-Index
i10 Index
Citation
9
9
987
John Otto
Animal Production
Animal Genetic
Pasture Science
Nutrition
Meat Science
Metrics
H-Index
i10 Index
Citation
9
9
270
Peter Yates
Biodiversity conservation
Fisheries
Elasmobranchs
Metrics
H-Index
i10 Index
Citation
9
9
366
Lorenna Machado
Animal nutrition
Methane production
Greenhouse gases
Microbiology
Metrics
H-Index
i10 Index
Citation
8
8
1,133
Jarrod Guppy
Aquaculture
Reproductive Technology
Selective breeding
Genetics
Gamete Quality
Metrics
H-Index
i10 Index
Citation
8
7
184
Donald T Warren
Fish behaviour
temperature
competition
thermal acclimation
Metrics
H-Index
i10 Index
Citation
6
6
178
Alexia Dubuc,
Fish ecophysiology
Hypoxia
Coastal habitats
Fish migrations
Extreme environments
Metrics
H-Index
i10 Index
Citation
6
5
171
Edita Ritmejerytė
plant animal interactions
plant secondary metabolites
bioactive compounds
chemical ecology
Metrics
H-Index
i10 Index
Citation
6
4
372
Griselda Ávila Soria
Plant 🌱 and Marine Biology 🌊
Biotechnology
Microbiology. Cnidarians
Molecular Biology
Ontogeny.
Metrics
H-Index
i10 Index
Citation
4
4
113
Isuru Wijesundara
Fisheries
Blue carbon
Coastal and Marine conservation and management
Metrics
H-Index
i10 Index
Citation
4
3
99
Jon Irish Legaspi Aquino
Aquaculture
Aquaculture nutrition
Aquaculture technology
Biotechnology
Aquaculture modelling
Metrics
H-Index
i10 Index
Citation
4
1
30
Phoebe Arbon
Aquaculture
Biosecurity
Genetics
Disease
Machine learning
Metrics
H-Index
i10 Index
Citation
2
2
29
Sophia Emmons
fish physiology
elasmobranchs
deoxygenation
hypoxia
Metrics
H-Index
i10 Index
Citation
1
1
15
Rankings
Ranking Based On Selection: 1
Jonathan Lloyd
Metrics
H-Index
i10 Index
Citation Counts
100
224
47,977
Rankings
Ranking Based On Selection: 2
Joshua Cinner
Metrics
H-Index
i10 Index
Citation Counts
96
177
27,704
social-ecological systems
geography
small-scale fisheries
human dimensions
conservation
Rankings
Ranking Based On Selection: 3
Colin Simpfendorfer
Metrics
H-Index
i10 Index
Citation Counts
95
327
32,259
Sharks and rays
elasmobranch fisheries
acoustic telemetry
Rankings
Ranking Based On Selection: 4
Susan GW Laurance
Metrics
H-Index
i10 Index
Citation Counts
74
142
34,831
Tropical Forest Ecology and Conservation Science
Rankings
Ranking Based On Selection: 5
Lucas Cernusak
Metrics
H-Index
i10 Index
Citation Counts
60
125
13,458
Rankings
Ranking Based On Selection: 6
Dean R Jerry
Metrics
H-Index
i10 Index
Citation Counts
48
156
7,992
Rankings
Ranking Based On Selection: 7
Chaoshu Zeng
Metrics
H-Index
i10 Index
Citation Counts
48
114
6,966
Aqauculture
ecophysiology of marine organisms
crustacean biology
toxicology
biological rhythms
Rankings
Ranking Based On Selection: 8
Sean Sloan
Metrics
H-Index
i10 Index
Citation Counts
47
67
9,502
land change
forest change and use
human dimensions of land change
conservation
REDD
Rankings
Ranking Based On Selection: 9
Jodie L Rummer
Metrics
H-Index
i10 Index
Citation Counts
45
100
5,850
fish physiology
evolution
climate change
conservation biology
ecological physiology
Rankings
Ranking Based On Selection: 10
Robert Coles
Metrics
H-Index
i10 Index
Citation Counts
45
102
8,289

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Paul N Nelson
Metrics
H-Index
i10 Index
Citation Counts
41
80
8,425
Rankings
Ranking Based On Selection: 12
Andrew Tobin
Metrics
H-Index
i10 Index
Citation Counts
40
80
4,403
Fisheries
fisheries management
fisheries biology
fisheries ecology
Rankings
Ranking Based On Selection: 13
Darren Crayn
Metrics
H-Index
i10 Index
Citation Counts
38
78
6,265
Rankings
Ranking Based On Selection: 14
Kyall Zenger
Metrics
H-Index
i10 Index
Citation Counts
37
96
5,973
Rankings
Ranking Based On Selection: 15
David Williamson
Metrics
H-Index
i10 Index
Citation Counts
35
52
5,521
Marine Science
Ecology
Fisheries
Conservation
Marine Park Management
Rankings
Ranking Based On Selection: 16
Geoff Inman Bamber
Metrics
H-Index
i10 Index
Citation Counts
35
72
5,272
Agriculture
sugarcane
modelling
plant physiology
Rankings
Ranking Based On Selection: 17
Clive Morris Jones
Metrics
H-Index
i10 Index
Citation Counts
33
77
3,637
Rankings
Ranking Based On Selection: 18
Amy Diedrich
Metrics
H-Index
i10 Index
Citation Counts
31
43
3,382
Sustainable livelihoods
Small-scale fisheries
Tourism
Small-scale aquaculture
Marine Protected Areas
Rankings
Ranking Based On Selection: 19
Andrew Chin
Metrics
H-Index
i10 Index
Citation Counts
31
68
3,035
Fisheries
sharks and rays
marine parks
state of the environment
conservation biology
Rankings
Ranking Based On Selection: 20
Kátya Abrantes
Metrics
H-Index
i10 Index
Citation Counts
31
51
3,376
Rankings
Ranking Based On Selection: 21
Rebecca Weeks
Metrics
H-Index
i10 Index
Citation Counts
30
41
3,768
Conservation planning
fisheries co-management
Rankings
Ranking Based On Selection: 22
Reniel B Cabral
Metrics
H-Index
i10 Index
Citation Counts
30
39
3,673
fisheries
marine ecology
conservation biology
marine protected areas
Rankings
Ranking Based On Selection: 23
Françoise Yoko Ishida
Metrics
H-Index
i10 Index
Citation Counts
29
40
5,073
Plant ecophysiology
stable isotope
tropical ecosystems
climate change on biodiveristy
Rankings
Ranking Based On Selection: 24
Alexander W Cheesman
Metrics
H-Index
i10 Index
Citation Counts
27
40
2,529
Rankings
Ranking Based On Selection: 25
Jan Robinson
Metrics
H-Index
i10 Index
Citation Counts
25
37
3,440
Small-scale fisheries
fisheries management
coral reef ecology
fish behaviour
social-ecological systems
Rankings
Ranking Based On Selection: 26
Renae Tobin
Metrics
H-Index
i10 Index
Citation Counts
24
30
2,163
Rankings
Ranking Based On Selection: 27
Daniel Montesinos
Metrics
H-Index
i10 Index
Citation Counts
20
31
1,307
Plant ecology and evolution
biogeography
invasive plants
reproductive ecology
Rankings
Ranking Based On Selection: 28
Jose A Domingos
Metrics
H-Index
i10 Index
Citation Counts
18
27
1,246
Aquaculture Propagation
Genetics & Selective Breeding
Rankings
Ranking Based On Selection: 29
Aaron Ballagh
Metrics
H-Index
i10 Index
Citation Counts
18
23
885
Rankings
Ranking Based On Selection: 30
Jacqueline Lau
Metrics
H-Index
i10 Index
Citation Counts
17
21
2,223
Environmental social science
climate change
coastal communities
morality
Rankings
Ranking Based On Selection: 31
Brian Collins|Behnam Ababaei, بهنام آبابایی
Metrics
H-Index
i10 Index
Citation Counts
17
31
1,519
Crop Physiology
Crop Modelling
Climate Change Impact and Adaptation
Rankings
Ranking Based On Selection: 32
Danika Kleiber
Metrics
H-Index
i10 Index
Citation Counts
17
23
1,775
Rankings
Ranking Based On Selection: 33
Tasmin Rymer
Metrics
H-Index
i10 Index
Citation Counts
17
34
848
Animal Behaviour
Behavioural Ecology
Evolutionary Biology
Zoology
Mammalogy
Rankings
Ranking Based On Selection: 34
Susan Gibson Kueh
Metrics
H-Index
i10 Index
Citation Counts
17
22
1,275
Aquatic Animal Health
Fish Disease Research
Biosecurity
Aquaculture
Rankings
Ranking Based On Selection: 35
Brock Bergseth
Metrics
H-Index
i10 Index
Citation Counts
14
16
940
conservation
human behaviour change
fisheries
poaching
illegal fishing
Rankings
Ranking Based On Selection: 36
Waldo Gabriel Nuez Ortín
Metrics
H-Index
i10 Index
Citation Counts
13
15
894
Rankings
Ranking Based On Selection: 37
Giana Bastos Gomes
Metrics
H-Index
i10 Index
Citation Counts
12
13
452
Aquatic Animal Health
Genetics
Disease
Aquaculture
Rankings
Ranking Based On Selection: 38
Leoncio Julio Ugarte-Guerra
Metrics
H-Index
i10 Index
Citation Counts
12
13
355
Climate Change
Agroforestry
Forestry
Plantation
Amazon
Rankings
Ranking Based On Selection: 39
Emmanuel Opoku Acheampong
Metrics
H-Index
i10 Index
Citation Counts
10
10
457
Forest management
roads improvement
rural livelihoods development
sustainable environmental development and management
Rankings
Ranking Based On Selection: 40
Muhammad Irfansyah lubis
Metrics
H-Index
i10 Index
Citation Counts
10
10
461
Rankings
Ranking Based On Selection: 41
Leo Nankervis
Metrics
H-Index
i10 Index
Citation Counts
10
10
432
Aquaculture
Nutrition
digestive physiology
Rankings
Ranking Based On Selection: 42
Nicolas Neveux
Metrics
H-Index
i10 Index
Citation Counts
9
9
987
Aquaculture
Algae
Seaweed
Bioremediation
Biofuels
Rankings
Ranking Based On Selection: 43
John Otto
Metrics
H-Index
i10 Index
Citation Counts
9
9
270
Animal Production
Animal Genetic
Pasture Science
Nutrition
Meat Science
Rankings
Ranking Based On Selection: 44
Van Hung Le
Metrics
H-Index
i10 Index
Citation Counts
9
9
289
Rankings
Ranking Based On Selection: 45
Peter Yates
Metrics
H-Index
i10 Index
Citation Counts
9
9
366
Biodiversity conservation
Fisheries
Elasmobranchs
Rankings
Ranking Based On Selection: 46
Lorenna Machado
Metrics
H-Index
i10 Index
Citation Counts
8
8
1,133
Animal nutrition
Methane production
Greenhouse gases
Microbiology
Rankings
Ranking Based On Selection: 47
Adrian Arias
Metrics
H-Index
i10 Index
Citation Counts
8
8
840
Rankings
Ranking Based On Selection: 48
Jarrod Guppy
Metrics
H-Index
i10 Index
Citation Counts
8
7
184
Aquaculture
Reproductive Technology
Selective breeding
Genetics
Gamete Quality
Rankings
Ranking Based On Selection: 49
Ruby Grantham
Metrics
H-Index
i10 Index
Citation Counts
7
5
432
Small-scale fisheries
livelihoods
equality
Rankings
Ranking Based On Selection: 50
Felista Mwangi
Metrics
H-Index
i10 Index
Citation Counts
7
2
225
Rankings
Ranking Based On Selection: 51
Megan Kent
Metrics
H-Index
i10 Index
Citation Counts
6
6
622
Rankings
Ranking Based On Selection: 52
Donald T Warren
Metrics
H-Index
i10 Index
Citation Counts
6
6
178
Fish behaviour
temperature
competition
thermal acclimation
Rankings
Ranking Based On Selection: 53
Alexia Dubuc,
Metrics
H-Index
i10 Index
Citation Counts
6
5
171
Fish ecophysiology
Hypoxia
Coastal habitats
Fish migrations
Extreme environments
Rankings
Ranking Based On Selection: 54
Edita Ritmejerytė
Metrics
H-Index
i10 Index
Citation Counts
6
4
372
plant animal interactions
plant secondary metabolites
bioactive compounds
chemical ecology
Rankings
Ranking Based On Selection: 55
Habat Ullah Asad
Metrics
H-Index
i10 Index
Citation Counts
5
3
225
Rankings
Ranking Based On Selection: 56
Caroline Candebat
Metrics
H-Index
i10 Index
Citation Counts
5
3
198
Rankings
Ranking Based On Selection: 57
Griselda Ávila Soria
Metrics
H-Index
i10 Index
Citation Counts
4
4
113
Plant 🌱 and Marine Biology 🌊
Biotechnology
Microbiology. Cnidarians
Molecular Biology
Ontogeny.
Rankings
Ranking Based On Selection: 58
Isuru Wijesundara
Metrics
H-Index
i10 Index
Citation Counts
4
3
99
Fisheries
Blue carbon
Coastal and Marine conservation and management
Rankings
Ranking Based On Selection: 59
Nur Un Nesa
Metrics
H-Index
i10 Index
Citation Counts
4
2
50
Rankings
Ranking Based On Selection: 60
Jon Irish Legaspi Aquino
Metrics
H-Index
i10 Index
Citation Counts
4
1
30
Aquaculture
Aquaculture nutrition
Aquaculture technology
Biotechnology
Aquaculture modelling
Rankings
Ranking Based On Selection: 61
Phoebe Arbon
Metrics
H-Index
i10 Index
Citation Counts
2
2
29
Aquaculture
Biosecurity
Genetics
Disease
Machine learning
Rankings
Ranking Based On Selection: 62
Sophia Emmons
Metrics
H-Index
i10 Index
Citation Counts
1
1
15
fish physiology
elasmobranchs
deoxygenation
hypoxia