World Scientist and University Rankings 2025
Canada Engineering & Technology 287 Scientists Subject Rankings - 2025
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 Feb 01, 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 (870.053) 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
Biological Oceanography
nutrients
phytoplankton
Metrics
H-Index
i10 Index
Citation Counts
173
996
136,405
* Total H IndexRankings
Ranking Based On Selection: 2
Global Change
Marine biodiversity
Fisheries
Conservation Biology
Climate Change
Metrics
H-Index
i10 Index
Citation Counts
102
286
52,192
* Total H IndexRankings
Ranking Based On Selection: 3
oceanography
Metrics
H-Index
i10 Index
Citation Counts
101
320
39,404
* Total H IndexRankings
Ranking Based On Selection: 4
Arctic
biogeochemistry
contaminants
chemical oceanography
Metrics
H-Index
i10 Index
Citation Counts
92
295
35,472
* Total H IndexRankings
Ranking Based On Selection: 5
Ecosystems
Ecosystem modeling
Fisheries
Fisheries management
Ecopath
Metrics
H-Index
i10 Index
Citation Counts
87
222
48,525
* Total H IndexRankings
Ranking Based On Selection: 6
Marine Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
80
140
23,373
* Total H IndexRankings
Ranking Based On Selection: 7
Coral reef ecology
Conservation
Marine ecology
Behavioural ecology
Metrics
H-Index
i10 Index
Citation Counts
76
209
28,620
* Total H IndexRankings
Ranking Based On Selection: 8
Oceanography
Metrics
H-Index
i10 Index
Citation Counts
76
171
20,272
* Total H IndexRankings
Ranking Based On Selection: 9
Oceanography
Metrics
H-Index
i10 Index
Citation Counts
72
171
26,136
* Total H IndexRankings
Ranking Based On Selection: 10
Metrics
H-Index
i10 Index
Citation Counts
71
280
25,754
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* Total H IndexRankings
Ranking Based On Selection: 11
oceanography
phytoplankton
ocean observations
ballast water treatment issues
Metrics
H-Index
i10 Index
Citation Counts
69
124
17,991
* Total H IndexRankings
Ranking Based On Selection: 12
Arctic oceanography
plankton
fish
biogeochemical fluxes
Metrics
H-Index
i10 Index
Citation Counts
65
150
11,851
* Total H IndexRankings
Ranking Based On Selection: 13
Ocean
phytoplankton
climate
physics
Metrics
H-Index
i10 Index
Citation Counts
60
119
14,208
* Total H IndexRankings
Ranking Based On Selection: 14
Shelf and deep-marine sedimentation
Black Sea
Metrics
H-Index
i10 Index
Citation Counts
57
105
10,426
* Total H IndexRankings
Ranking Based On Selection: 15
Eco-physiology
Macroecology
Biodiversity
Conservation Physiology
Metrics
H-Index
i10 Index
Citation Counts
54
104
15,955
* Total H IndexRankings
Ranking Based On Selection: 16
Oceanography
Metals
Phytoplankton
Metrics
H-Index
i10 Index
Citation Counts
53
77
11,886
* Total H IndexRankings
Ranking Based On Selection: 17
Diagenesis
CaCO3 dissolution
Benthic Boundary Layer
Bubbles in Sediments
Ocean Acidification
Metrics
H-Index
i10 Index
Citation Counts
52
98
11,539
* Total H IndexRankings
Ranking Based On Selection: 18
Environmental Biology
Statistics
Scaling
Ocean Science
Metrics
H-Index
i10 Index
Citation Counts
52
128
10,870
* Total H IndexRankings
Ranking Based On Selection: 19
radionuclides
tracers
ocean transport and circulation
Metrics
H-Index
i10 Index
Citation Counts
51
83
8,230
* Total H IndexRankings
Ranking Based On Selection: 20
ocean biogeochemistry
ocean modelling
data assimilation
hypoxia
carbon cycle
Metrics
H-Index
i10 Index
Citation Counts
49
119
10,130
* Total H IndexRankings
Ranking Based On Selection: 21
aquaculture
coastal ecology
Metrics
H-Index
i10 Index
Citation Counts
49
90
7,216
* Total H IndexRankings
Ranking Based On Selection: 22
Evolutionary Physiology
Global Change Biology
Acclimation & Adaptation
Omics approaches
Rarity
Metrics
H-Index
i10 Index
Citation Counts
48
91
8,438
* Total H IndexRankings
Ranking Based On Selection: 23
Arctic
oceanography
dynamics
sea ice
continental shelf
Metrics
H-Index
i10 Index
Citation Counts
48
99
8,055
* Total H IndexRankings
Ranking Based On Selection: 24
Simulation and Training
Safety and Survival
Metrics
H-Index
i10 Index
Citation Counts
48
123
6,811
* Total H IndexRankings
Ranking Based On Selection: 25
Metrics
H-Index
i10 Index
Citation Counts
47
92
9,276
Paul J Harrison
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
173
996
136,405
Biological Oceanography
nutrients
phytoplankton
William Cheung
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
102
286
52,192
Global Change
Marine biodiversity
Fisheries
Conservation Biology
Climate Change
Trevor Platt
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
101
320
39,404
RW Macdonald
Fisheries and Oceans Canada
Ontario, Canada
Metrics
H-Index
i10-Index
Citation Counts
92
295
35,472
Arctic
biogeochemistry
contaminants
chemical oceanography
Villy Christensen
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
87
222
48,525
Ecosystems
Ecosystem modeling
Fisheries
Fisheries management
Ecopath
Stephen Calvert
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
80
140
23,373
Isabelle M Côté
Simon Fraser University
Burnaby, Canada
Metrics
H-Index
i10-Index
Citation Counts
76
209
28,620
Coral reef ecology
Conservation
Marine ecology
Behavioural ecology
Marcel Babin
Université Laval
Québec, Canada
Metrics
H-Index
i10-Index
Citation Counts
76
171
20,272
Dwr Wallace
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
72
171
26,136
John Smith
Fisheries and Oceans Canada
Ontario, Canada
Metrics
H-Index
i10-Index
Citation Counts
71
280
25,754
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!
John J Cullen
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
69
124
17,991
oceanography
phytoplankton
ocean observations
ballast water treatment issues
Louis Fortier
Université Laval
Québec, Canada
Metrics
H-Index
i10-Index
Citation Counts
65
150
11,851
Arctic oceanography
plankton
fish
biogeochemical fluxes
Marlon Lewis
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
60
119
14,208
Ocean
phytoplankton
climate
physics
Richard Hiscott
Memorial University of Newfoundland
St John’s, Canada
Metrics
H-Index
i10-Index
Citation Counts
57
105
10,426
Shelf and deep-marine sedimentation
Black Sea
Amanda E Bates
Memorial University of Newfoundland
St John’s, Canada
Metrics
H-Index
i10-Index
Citation Counts
54
104
15,955
Eco-physiology
Macroecology
Biodiversity
Conservation Physiology
Neil M Price
McGill University
Montréal, Canada
Metrics
H-Index
i10-Index
Citation Counts
53
77
11,886
Oceanography
Metals
Phytoplankton
Bernard Boudreau
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
52
98
11,539
Diagenesis
CaCO3 dissolution
Benthic Boundary Layer
Bubbles in Sediments
Ocean Acidification
David C Schneider
Memorial University of Newfoundland
St John’s, Canada
Metrics
H-Index
i10-Index
Citation Counts
52
128
10,870
Environmental Biology
Statistics
Scaling
Ocean Science
John N Smith
Fisheries and Oceans Canada
Ontario, Canada
Metrics
H-Index
i10-Index
Citation Counts
51
83
8,230
radionuclides
tracers
ocean transport and circulation
Katja Fennel
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
49
119
10,130
ocean biogeochemistry
ocean modelling
data assimilation
hypoxia
carbon cycle
Jon Grant
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
49
90
7,216
aquaculture
coastal ecology
Piero Calosi
Université du Québec Rimouski
Rimouski, Canada
Metrics
H-Index
i10-Index
Citation Counts
48
91
8,438
Evolutionary Physiology
Global Change Biology
Acclimation & Adaptation
Omics approaches
Rarity
Humfrey Melling
Fisheries and Oceans Canada
Ontario, Canada
Metrics
H-Index
i10-Index
Citation Counts
48
99
8,055
Arctic
oceanography
dynamics
sea ice
continental shelf
Heather Carnahan
Memorial University of Newfoundland
St John’s, Canada
Metrics
H-Index
i10-Index
Citation Counts
48
123
6,811
Simulation and Training
Safety and Survival
Richard B Rivkin
Memorial University of Newfoundland
St John’s, Canada
Metrics
H-Index
i10-Index
Citation Counts
47
92
9,276