The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 31, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Marine Biotechnology
Natural product
Ecology
Metrics
H-Index
i10 Index
Citation Counts
53
284
13,867
* Total H IndexRankings
Ranking Based On Selection: 2
Marine Microbiology
Biogeochemical Cycles
DMSP
DMS
Metrics
H-Index
i10 Index
Citation Counts
52
207
11,653
* Total H IndexRankings
Ranking Based On Selection: 3
Marine natural products
Metrics
H-Index
i10 Index
Citation Counts
52
161
7,259
* Total H IndexRankings
Ranking Based On Selection: 4
Fish physiology
Fish nutrition
Fish culture
Metrics
H-Index
i10 Index
Citation Counts
51
78
6,361
* Total H IndexRankings
Ranking Based On Selection: 5
fish immunology
Metrics
H-Index
i10 Index
Citation Counts
50
199
11,607
* Total H IndexRankings
Ranking Based On Selection: 6
Marine Medicinal Chemistry
Marine Chemical Ecology
Metrics
H-Index
i10 Index
Citation Counts
47
175
7,649
* Total H IndexRankings
Ranking Based On Selection: 7
marine microbiology
Metrics
H-Index
i10 Index
Citation Counts
41
122
5,774
* Total H IndexRankings
Ranking Based On Selection: 8
Marine anti-biofouling coating
anti-corrosive coating
polyurethane
Metrics
H-Index
i10 Index
Citation Counts
40
81
4,314
* Total H IndexRankings
Ranking Based On Selection: 9
Fish immunology
Metrics
H-Index
i10 Index
Citation Counts
40
132
5,149
* Total H IndexRankings
Ranking Based On Selection: 10
Phycology
Metrics
H-Index
i10 Index
Citation Counts
40
94
5,351
* Total H IndexRankings
Ranking Based On Selection: 11
Aquaculture Biotechnology
Innate Immunity
Molecular Breeding
Metrics
H-Index
i10 Index
Citation Counts
38
103
4,197
* Total H IndexRankings
Ranking Based On Selection: 12
marine science
Metrics
H-Index
i10 Index
Citation Counts
38
134
5,331
* Total H IndexRankings
Ranking Based On Selection: 13
Fish Nutrition
Immunology
Metabolic disease
Extrusion
Metrics
H-Index
i10 Index
Citation Counts
37
77
3,761
* Total H IndexRankings
Ranking Based On Selection: 14
Marine Ecological Genomics
Bioinformatics
Metrics
H-Index
i10 Index
Citation Counts
36
68
4,057
* Total H IndexRankings
Ranking Based On Selection: 15
Marine Robotics
Autonomous Vehicles
Nonlinear Control
Ship Control
Multi-robot Systems
Metrics
H-Index
i10 Index
Citation Counts
35
81
4,817
* Total H IndexRankings
Ranking Based On Selection: 16
Marine Science
Environment science
coastal management
Metrics
H-Index
i10 Index
Citation Counts
34
77
3,489
* Total H IndexRankings
Ranking Based On Selection: 17
aqua-soil interfacial processes
environmental biogeochemistry
Metrics
H-Index
i10 Index
Citation Counts
32
60
3,555
* Total H IndexRankings
Ranking Based On Selection: 18
sex determination
epigenetics
genome sequencing
genetic breeding
Metrics
H-Index
i10 Index
Citation Counts
32
71
5,007
* Total H IndexRankings
Ranking Based On Selection: 19
Marine aerosols,Biogeochemistry
Metrics
H-Index
i10 Index
Citation Counts
32
51
5,261
* Total H IndexRankings
Ranking Based On Selection: 20
Aquaculture Ecology
Behavioral Ecology
Metrics
H-Index
i10 Index
Citation Counts
31
79
3,203
* Total H IndexRankings
Ranking Based On Selection: 21
Marine Science
Organic Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
31
44
2,351
* Total H IndexRankings
Ranking Based On Selection: 22
Marine & Bio-Aerosol Research
Metrics
H-Index
i10 Index
Citation Counts
30
51
3,167
* Total H IndexRankings
Ranking Based On Selection: 23
Aquatic animal feed and nutrition
Metrics
H-Index
i10 Index
Citation Counts
29
51
2,046
* Total H IndexRankings
Ranking Based On Selection: 24
Aqueous batteries
Zn/Sn/Na batteries
Mesoporous electrode
Electrochemistry analysis
Metrics
H-Index
i10 Index
Citation Counts
29
41
5,869
* Total H IndexRankings
Ranking Based On Selection: 25
Marine Biogeochemistry
Oceanography
Ecotoxicology
Metrics
H-Index
i10 Index
Citation Counts
29
38
2,491
Marine Biotechnology
Natural product
Ecology
Xiao Hua Zhang
Ocean University of China
Qingdao, China
Metrics
H-Index
i10-Index
Citation Counts
52
207
11,653
Marine Microbiology
Biogeochemical Cycles
DMSP
DMS
Dehai Li
Ocean University of China
Qingdao, China
Metrics
H-Index
i10-Index
Citation Counts
52
161
7,259
Jun Jiang
Metrics
H-Index
i10-Index
Citation Counts
51
78
6,361
Fish physiology
Fish nutrition
Fish culture
Chao Li
Qingdao Agricultural University
Shandong, China
Metrics
H-Index
i10-Index
Citation Counts
50
199
11,607
Chang Lun Shao
Ocean University of China
Qingdao, China
Metrics
H-Index
i10-Index
Citation Counts
47
175
7,649
Marine Medicinal Chemistry
Marine Chemical Ecology
Chunfeng Ma
South China University of Technology
Guangzhou, China
Metrics
H-Index
i10-Index
Citation Counts
40
81
4,314
Marine anti-biofouling coating
anti-corrosive coating
polyurethane
Jianguo Su
Metrics
H-Index
i10-Index
Citation Counts
40
132
5,149
Naihao Ye
Chinese Academy of Fishery Sciences
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
40
94
5,351
Mengqiang Wang
Ocean University of China
Qingdao, China
Metrics
H-Index
i10-Index
Citation Counts
38
103
4,197
Aquaculture Biotechnology
Innate Immunity
Molecular Breeding
Jianhua Gao
Nanjing University
Nanjing, China
Metrics
H-Index
i10-Index
Citation Counts
38
134
5,331
Min Xue
Metrics
H-Index
i10-Index
Citation Counts
37
77
3,761
Fish Nutrition
Immunology
Metabolic disease
Extrusion
Jianguo Lu
Sun Yat Sen University
Guangzhou, China
Metrics
H-Index
i10-Index
Citation Counts
36
68
4,057
Marine Ecological Genomics
Bioinformatics
Xianbo Xiang
Metrics
H-Index
i10-Index
Citation Counts
35
81
4,817
Marine Robotics
Autonomous Vehicles
Nonlinear Control
Ship Control
Multi-robot Systems
Marine Science
Environment science
coastal management
aqua-soil interfacial processes
environmental biogeochemistry
Changwei(Kevin) Shao
Metrics
H-Index
i10-Index
Citation Counts
32
71
5,007
sex determination
epigenetics
genome sequencing
genetic breeding
Libin Zhang
Metrics
H-Index
i10-Index
Citation Counts
31
79
3,203
Aquaculture Ecology
Behavioral Ecology
Yunping Xu
Shanghai Ocean University
Shanghai, China
Metrics
H-Index
i10-Index
Citation Counts
31
44
2,351
Marine Science
Organic Geochemistry
Senchao Lai
South China University of Technology
Guangzhou, China
Metrics
H-Index
i10-Index
Citation Counts
30
51
3,167
Tao Han
Zhejiang Ocean University
Zhoushan, China
Metrics
H-Index
i10-Index
Citation Counts
29
51
2,046
Aqueous batteries
Zn/Sn/Na batteries
Mesoporous electrode
Electrochemistry analysis
Marine Biogeochemistry
Oceanography
Ecotoxicology