Total 2,424,675 scientists, country 221, and institutions 24,468 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Emmanuel Boss](https://cdn.adscientificindex.com/pictures/50/1300615.jpg)
Oceanography
Science education
Marine Science
Ocean Optics
Biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
230
199
0.865
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Robert Steneck](https://cdn.adscientificindex.com/pictures/ed/1293018.jpg)
Marine Ecology
Evolutionary Biology
Conservation Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
184
142
0.772
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Fei Chai](/user/assets/images/profile/no-profile-photo.png)
oceanography
numerical modeling
carbon cycle
BGC-Argo
fisheries
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
169
126
0.746
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Peter Jumars](https://cdn.adscientificindex.com/pictures/86/1292116.jpg)
Biological oceanography
biological-physical interactions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
132
58
0.439
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Lawrence M Mayer](/user/assets/images/profile/no-profile-photo.png)
Biogeochemistry
Ocean science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
129
60
0.465
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Jeffrey A Runge](/user/assets/images/profile/no-profile-photo.png)
Biological and Fisheries Oceanography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
50
0.581
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Andrew C Thomas](https://cdn.adscientificindex.com/pictures/5a/1297453.jpg)
oceanography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
51
0.614
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Joseph Kelley](https://cdn.adscientificindex.com/pictures/2b/1303576.jpg)
coastal geology
sea-level change
Maine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
23
0.295
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Mary Jane Perry](/user/assets/images/profile/no-profile-photo.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
42
0.545
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Lee Karp Boss](https://cdn.adscientificindex.com/pictures/ad/1289235.jpg)
Biological Oceanography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
62
0.912
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!
* Total i10 IndexRankings
Ranking Based On Selection: 11
![Damian Brady](https://cdn.adscientificindex.com/pictures/73/1299425.jpg)
Aquaculture
Fisheries
Offshore Wind
Water Quality
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
52
0.881
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Heather Hamlin](/user/assets/images/profile/no-profile-photo.png)
Marine Biology
Aquaculture
Reproduction
Endocrinology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
26
0.553
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Teresa R Johnson](https://cdn.adscientificindex.com/pictures/e0/4304848.jpg)
marine policy
human ecology
applied anthropology
social-ecological systems
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
25
0.735
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Joshua S Stoll](https://cdn.adscientificindex.com/pictures/df/1303647.jpg)
social-ecological systems
fisheries
ocean governance
seafood trade
food systems
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
30
0.938
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Nils HaëNtjens](/user/assets/images/profile/no-profile-photo.png)
Ocean Optics
Oceanography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
27
0.964
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Sara M Lindsay](https://cdn.adscientificindex.com/pictures/99/1293515.jpg)
invertebrate biology
marine ecology
polychaetes
regeneration
sensory biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
10
0.370
* Total i10 IndexRankings
Ranking Based On Selection: 17
![Jeremy J Rich](https://cdn.adscientificindex.com/pictures/74/1302843.jpg)
microbial ecology
biogeochemistry
nitrogen cycle
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
21
0.840
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Margaret Estapa](/user/assets/images/profile/no-profile-photo.png)
Oceanography
Marine Science
Biogeochemistry
Carbon Cycling
Ocean Optics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
20
0.952
* Total i10 IndexRankings
Ranking Based On Selection: 19
![Katherine Allen](https://cdn.adscientificindex.com/pictures/0c/1304004.jpg)
Paleoceanography
Geochemistry
Climate
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 20
![Sarah E Kingston](https://cdn.adscientificindex.com/pictures/49/1293539.jpg)
Molecular Ecology and Evolution
adaptive evolution
population genomics
phylogenomics
bioinformatics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
7
0.700
* Total i10 IndexRankings
Ranking Based On Selection: 21
![Elisabeth A Maxwell](https://cdn.adscientificindex.com/pictures/5e/5627939.jpg)
Marine Biology
Conservation
Marine Policy
Social-ecological systems
Marine resource management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 22
![Engiliyage Nalika Lakmali](https://cdn.adscientificindex.com/pictures/24/5142165.jpg)
Coastal Engineering
Numerical Modelling
Storm Surge Modelling
Coastal flooding
Tidal hydrodynamics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Emmanuel Boss
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
230
199
0.865
Oceanography
Science education
Marine Science
Ocean Optics
Biogeochemistry
Robert Steneck
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
184
142
0.772
Marine Ecology
Evolutionary Biology
Conservation Biology
Fei Chai
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
169
126
0.746
oceanography
numerical modeling
carbon cycle
BGC-Argo
fisheries
Peter Jumars
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
132
58
0.439
Biological oceanography
biological-physical interactions
Lawrence M Mayer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
129
60
0.465
Biogeochemistry
Ocean science
Jeffrey A Runge
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
50
0.581
Biological and Fisheries Oceanography
Andrew C Thomas
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
51
0.614
Joseph Kelley
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
23
0.295
coastal geology
sea-level change
Maine
Mary Jane Perry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
42
0.545
Lee Karp Boss
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
62
0.912
Biological Oceanography
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!
Damian Brady
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
52
0.881
Aquaculture
Fisheries
Offshore Wind
Water Quality
Heather Hamlin
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
26
0.553
Marine Biology
Aquaculture
Reproduction
Endocrinology
Teresa R Johnson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
25
0.735
marine policy
human ecology
applied anthropology
social-ecological systems
Joshua S Stoll
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
30
0.938
social-ecological systems
fisheries
ocean governance
seafood trade
food systems
Nils HaëNtjens
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
27
0.964
Ocean Optics
Oceanography
Sara M Lindsay
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
10
0.370
invertebrate biology
marine ecology
polychaetes
regeneration
sensory biology
Jeremy J Rich
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
21
0.840
microbial ecology
biogeochemistry
nitrogen cycle
Margaret Estapa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
20
0.952
Oceanography
Marine Science
Biogeochemistry
Carbon Cycling
Ocean Optics
Katherine Allen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
Paleoceanography
Geochemistry
Climate
Sarah E Kingston
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
7
0.700
Molecular Ecology and Evolution
adaptive evolution
population genomics
phylogenomics
bioinformatics
Elisabeth A Maxwell
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Marine Biology
Conservation
Marine Policy
Social-ecological systems
Marine resource management
Engiliyage Nalika Lakmali
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Coastal Engineering
Numerical Modelling
Storm Surge Modelling
Coastal flooding
Tidal hydrodynamics