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" (873,688 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: 1
Ikuo Hirono
fish and shellfish immunology
fish and shellfish genomics
fish and shellfish infectious diseases
Metrics
H-Index
i10 Index
Citation
79
341
20,534
* Rankings
Ranking Based On Selection: 6
Tadashi Tokai
Fisheries science
Fishing gear technology
Fisheries management
Fisheries Biology
Metrics
H-Index
i10 Index
Citation
35
82
4,857
* Rankings
Ranking Based On Selection: 7
Katsuyuki Hamasaki
Conservation Biology
Artificial propagation
Aquaculture
Crustacea
Metrics
H-Index
i10 Index
Citation
34
115
4,257

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: 14
Hitoshi Konno
Mathematical Physics
Quantum Groups
Representation Theory
Metrics
H-Index
i10 Index
Citation
21
36
1,578
* Rankings
Ranking Based On Selection: 17
Leila Basti
Marine Science
Marine Environment
Harmful Algal Blooms
Ecotoxicology
Aquaculture
Metrics
H-Index
i10 Index
Citation
16
22
672
* Rankings
Ranking Based On Selection: 31
Zijiang Yang (River)|楊子江
Environmental modelling
Spectral analysis
Microplastics
Anime
Chiikawa
Metrics
H-Index
i10 Index
Citation
8
8
177
* Rankings
Ranking Based On Selection: 34
Aiko Tachibana
Marine biology
Marine ecosystem
Plankton
Metrics
H-Index
i10 Index
Citation
7
7
169
* Rankings
Ranking Based On Selection: 37
Ryusuke Miyamoto
魚群行動,漁業,計測工学,生体信号処理,機械学習,超音波探傷,昆虫行動
Metrics
H-Index
i10 Index
Citation
4
4
105
* Rankings
Ranking Based On Selection: 41
田野入 開|田野入 開
Microplastics
Food web
Tidal flat
Analytical chemistry マイクロプラスチック、食物網、干潟、分析化学
Metrics
H-Index
i10 Index
Citation
3
1
29
* Rankings
Ranking Based On Selection: 47
Ellarizza Fredeluces
global navigation satellite systems (GNSS)
Metrics
H-Index
i10 Index
Citation
2
0
7
* Rankings
Ranking Based On Selection: 48
Tsuyoshi Sasaki
aquatic marine environmental education
fisheries education
fish ecology
iron ion releaser
Metrics
H-Index
i10 Index
Citation
2
0
12
Rankings
Ranking Based On Selection: 1
Ikuo Hirono
Metrics
H-Index
i10 Index
Citation Counts
79
341
20,534
fish and shellfish immunology
fish and shellfish genomics
fish and shellfish infectious diseases
Rankings
Ranking Based On Selection: 2
Bon Kimura
Metrics
H-Index
i10 Index
Citation Counts
46
150
6,670
Rankings
Ranking Based On Selection: 3
Hiroshi Nagai 永井宏史
Metrics
H-Index
i10 Index
Citation Counts
44
86
4,972
Rankings
Ranking Based On Selection: 4
Hidekatsu Yamazaki
Metrics
H-Index
i10 Index
Citation Counts
37
83
4,164
Rankings
Ranking Based On Selection: 5
Mitsuru Izumi
Metrics
H-Index
i10 Index
Citation Counts
35
138
5,445
Rankings
Ranking Based On Selection: 6
Tadashi Tokai
Metrics
H-Index
i10 Index
Citation Counts
35
82
4,857
Fisheries science
Fishing gear technology
Fisheries management
Fisheries Biology
Rankings
Ranking Based On Selection: 7
Katsuyuki Hamasaki
Metrics
H-Index
i10 Index
Citation Counts
34
115
4,257
Conservation Biology
Artificial propagation
Aquaculture
Crustacea
Rankings
Ranking Based On Selection: 8
Toshiro Yamanaka
Metrics
H-Index
i10 Index
Citation Counts
28
84
3,279

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
Miho Sekiguchi
Metrics
H-Index
i10 Index
Citation Counts
22
34
4,666
Rankings
Ranking Based On Selection: 13
Masato Moteki
Metrics
H-Index
i10 Index
Citation Counts
21
46
1,471
Rankings
Ranking Based On Selection: 14
Hitoshi Konno
Metrics
H-Index
i10 Index
Citation Counts
21
36
1,578
Mathematical Physics
Quantum Groups
Representation Theory
Rankings
Ranking Based On Selection: 15
Yuji Tanaka
Metrics
H-Index
i10 Index
Citation Counts
20
38
1,271
Rankings
Ranking Based On Selection: 16
Katano Toshiya
Metrics
H-Index
i10 Index
Citation Counts
20
32
1,060
Rankings
Ranking Based On Selection: 17
Leila Basti
Metrics
H-Index
i10 Index
Citation Counts
16
22
672
Marine Science
Marine Environment
Harmful Algal Blooms
Ecotoxicology
Aquaculture
Rankings
Ranking Based On Selection: 18
Yukihiro Kobayashi
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,015
Rankings
Ranking Based On Selection: 20
Kohei Mizobata
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,261
Polar Oceanography
Physical Oceanography
Satellite Oceanography
Rankings
Ranking Based On Selection: 21
Takanori Sakai
Metrics
H-Index
i10 Index
Citation Counts
15
20
959
Rankings
Ranking Based On Selection: 23
Kigen Takahashi
Metrics
H-Index
i10 Index
Citation Counts
14
18
523
Rankings
Ranking Based On Selection: 27
Koichi Shimono
Metrics
H-Index
i10 Index
Citation Counts
12
17
918
Rankings
Ranking Based On Selection: 29
藤田大介
Metrics
H-Index
i10 Index
Citation Counts
10
10
394
Rankings
Ranking Based On Selection: 30
Motoaki Morita
Metrics
H-Index
i10 Index
Citation Counts
8
8
211
Rankings
Ranking Based On Selection: 31
Zijiang Yang (River)|楊子江
Metrics
H-Index
i10 Index
Citation Counts
8
8
177
Environmental modelling
Spectral analysis
Microplastics
Anime
Chiikawa
Rankings
Ranking Based On Selection: 33
Mihoko Wakamatsu
Metrics
H-Index
i10 Index
Citation Counts
7
4
200
Environmental economics
Resource Economics
Experimental Economics
Rankings
Ranking Based On Selection: 34
Aiko Tachibana
Metrics
H-Index
i10 Index
Citation Counts
7
7
169
Marine biology
Marine ecosystem
Plankton
Rankings
Ranking Based On Selection: 35
Mark Anthony Redo
Metrics
H-Index
i10 Index
Citation Counts
6
5
171
thermodynamics
heat transfer
fluid dynamics
food refrigeration
Rankings
Ranking Based On Selection: 36
Kentaro Tanaka
Metrics
H-Index
i10 Index
Citation Counts
6
5
167
Rankings
Ranking Based On Selection: 37
Ryusuke Miyamoto
Metrics
H-Index
i10 Index
Citation Counts
4
4
105
魚群行動,漁業,計測工学,生体信号処理,機械学習,超音波探傷,昆虫行動
Rankings
Ranking Based On Selection: 40
Botao Zhang
Metrics
H-Index
i10 Index
Citation Counts
3
2
44
natural product
organic chemistry
anlytical chemistry
Rankings
Ranking Based On Selection: 41
田野入 開|田野入 開
Metrics
H-Index
i10 Index
Citation Counts
3
1
29
Microplastics
Food web
Tidal flat
Analytical chemistry マイクロプラスチック、食物網、干潟、分析化学
Rankings
Ranking Based On Selection: 42
Lik-Ming Lau
Metrics
H-Index
i10 Index
Citation Counts
3
1
27
Fish and Shellfish Diseases
Fish Pathology
Fish Immunology
Rankings
Ranking Based On Selection: 43
Anom Sulardi
Metrics
H-Index
i10 Index
Citation Counts
3
1
22
Physical Oceanography
Coastal Dynamics
GIS and Remote Sensing
Rankings
Ranking Based On Selection: 44
Gandy Rosales-Quintana
Metrics
H-Index
i10 Index
Citation Counts
2
1
25
Rankings
Ranking Based On Selection: 45
Burak Saygili
Metrics
H-Index
i10 Index
Citation Counts
2
1
23
Rankings
Ranking Based On Selection: 46
Ozeki Tomohiro
Metrics
H-Index
i10 Index
Citation Counts
2
0
26
Rankings
Ranking Based On Selection: 47
Ellarizza Fredeluces
Metrics
H-Index
i10 Index
Citation Counts
2
0
7
global navigation satellite systems (GNSS)
Rankings
Ranking Based On Selection: 48
Tsuyoshi Sasaki
Metrics
H-Index
i10 Index
Citation Counts
2
0
12
aquatic marine environmental education
fisheries education
fish ecology
iron ion releaser
Rankings
Ranking Based On Selection: 49
Kazuki Sugawara
Metrics
H-Index
i10 Index
Citation Counts
1
0
4
Rankings
Ranking Based On Selection: 50
Bircan Taşci
Metrics
H-Index
i10 Index
Citation Counts
1
0
2
aquaculture
fish health
fish diseases
fish pathology
fish immunology