Citation Rankings
Highly Cited Researchers
Africa Agriculture & Forestry / Fisheries Highly Cited Researchers 821 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Aquaculture and Fisheries
Animal Science
Environmental Science
WEF Nexus
Sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,598
18,239
0.931
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Marine ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,294
4,568
0.299
* Total Citation Counts Rankings
Ranking Based On Selection: 3
fisheries
marine
Benguela
indicators
ecosystem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,117
4,613
0.327
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Marine invertebrate biodiversity
marine alien species
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,453
3,138
0.252
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Marine Mammal Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,014
3,063
0.306
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Inland Fisheries
Fish Biology
Freshwater Ecology
Invasion Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,707
5,994
0.617
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Aquaculture
fish biology
fisheries
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,075
3,905
0.430
* Total Citation Counts Rankings
Ranking Based On Selection: 8
fisheries
ocean governance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,264
3,063
0.422
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Marine full-spectrum sustainability
Structured decision making
Climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,922
1,801
0.260
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Marine Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,324
2,009
0.318
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Fisheries
Mariculture
Women empowerment
Marine mammals
Climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,793
2,904
0.501
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Ecosystem health
One Health
Ecosystem health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,506
3,327
0.604
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Marine Biology and Coastal Oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,088
2,338
0.460
* Total Citation Counts Rankings
Ranking Based On Selection: 14
marine natural products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,659
1,282
0.275
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Aquaculture
Fisheries
Marine Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,500
1,938
0.431
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Ichthyology
ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,389
1,287
0.293
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Food biotechnology
Food Safety
Natural Products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,314
2,723
0.631
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Marine ecology
Fisheries biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,216
1,111
0.264
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Aquaculture
Nutritional biochemistry
Modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,210
3,202
0.761
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Fish Biology
Environmental Pollution
Aquatic Toxicology
Bioradiation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,058
3,062
0.755
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Marine ecology
invasion biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,991
2,277
0.571
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Corals/Coral reefs
coral bleaching
adaptation to climate change and sustainable development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,884
1,611
0.415
* Total Citation Counts Rankings
Ranking Based On Selection: 23
cephalopods
all aspects
fish and fisheries
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,646
961
0.264
* Total Citation Counts Rankings
Ranking Based On Selection: 24
coastal erosion
shoreline change modelling
coastal processes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,544
2,457
0.693
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,387
1,176
0.347
* Total Citation Counts Rankings
Rankings
42,738
51
2
Ranking Based On Selection: 1
Mahmoud Dawood
Kafr El Sheikh University
Kafr el-Sheikh, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,598
18,239
0.931
Aquaculture and Fisheries
Animal Science
Environmental Science
WEF Nexus
Sustainability
* Total Citation Counts Rankings
Rankings
59,765
201
4
Ranking Based On Selection: 2
Christopher Mcquaid
Rhodes University
Grahamstown, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,294
4,568
0.299
* Total Citation Counts Rankings
Rankings
66,354
228
47
Ranking Based On Selection: 3
Lynne Shannon
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,117
4,613
0.327
fisheries
marine
Benguela
indicators
ecosystem
* Total Citation Counts Rankings
Rankings
77,658
261
52
Ranking Based On Selection: 4
Charles Griffiths
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,453
3,138
0.252
Marine invertebrate biodiversity
marine alien species
* Total Citation Counts Rankings
Rankings
100,604
356
27
Ranking Based On Selection: 5
Marthan Bester
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,014
3,063
0.306
* Total Citation Counts Rankings
Rankings
104,250
373
2
Ranking Based On Selection: 6
Olaf LF Weyl
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,707
5,994
0.617
Inland Fisheries
Fish Biology
Freshwater Ecology
Invasion Ecology
* Total Citation Counts Rankings
Rankings
112,553
165
13
Ranking Based On Selection: 7
Abdel Fattah M El Sayed
Alexandria University
Alexandria, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,075
3,905
0.430
* Total Citation Counts Rankings
Rankings
143,818
570
12
Ranking Based On Selection: 8
Warwick Sauer
Rhodes University
Grahamstown, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,264
3,063
0.422
* Total Citation Counts Rankings
Rankings
151,245
596
141
Ranking Based On Selection: 9
Astrid Jarre
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,922
1,801
0.260
Marine full-spectrum sustainability
Structured decision making
Climate change
* Total Citation Counts Rankings
Rankings
166,103
662
21
Ranking Based On Selection: 10
Mark Gibbons
University of the Western Cape
Bellville, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,324
2,009
0.318
* Total Citation Counts Rankings
Rankings
181,388
22
4
Ranking Based On Selection: 11
Jiddawi Narriman Saleh
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,793
2,904
0.501
Fisheries
Mariculture
Women empowerment
Marine mammals
Climate change
* Total Citation Counts Rankings
Rankings
190,518
25
3
Ranking Based On Selection: 12
Robinson H. Mdegela
Sokoine University of Agriculture
Morogoro, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,506
3,327
0.604
Ecosystem health
One Health
Ecosystem health
* Total Citation Counts Rankings
Rankings
205,868
861
26
Ranking Based On Selection: 13
Albertus Smit
University of the Western Cape
Bellville, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,088
2,338
0.460
Marine Biology and Coastal Oceanography
* Total Citation Counts Rankings
Rankings
223,835
942
29
Ranking Based On Selection: 14
Michael Davies-Coleman
University of the Western Cape
Bellville, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,659
1,282
0.275
* Total Citation Counts Rankings
Rankings
231,252
38
6
Ranking Based On Selection: 15
Yunus D. Mgaya
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,500
1,938
0.431
Aquaculture
Fisheries
Marine Biology
* Total Citation Counts Rankings
Rankings
236,631
995
20
Ranking Based On Selection: 16
Anthony Booth
Rhodes University
Grahamstown, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,389
1,287
0.293
* Total Citation Counts Rankings
Rankings
240,444
510
14
Ranking Based On Selection: 17
Ahmed A Tayel
Kafr El Sheikh University
Kafr el-Sheikh, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,314
2,723
0.631
Food biotechnology
Food Safety
Natural Products
* Total Citation Counts Rankings
Rankings
245,554
1,034
234
Ranking Based On Selection: 18
Colin Graham Attwood
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,216
1,111
0.264
* Total Citation Counts Rankings
Rankings
245,846
521
71
Ranking Based On Selection: 19
Ehab El Haroun
Cairo University
Giza, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,210
3,202
0.761
Aquaculture
Nutritional biochemistry
Modelling
* Total Citation Counts Rankings
Rankings
254,388
558
35
Ranking Based On Selection: 20
Alaa El Din H Sayed
Assiut University
Asyut, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,058
3,062
0.755
Fish Biology
Environmental Pollution
Aquatic Toxicology
Bioradiation
* Total Citation Counts Rankings
Rankings
258,255
1,106
138
Ranking Based On Selection: 21
Tammy Robinson
Stellenbosch University
Stellenbosch, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,991
2,277
0.571
* Total Citation Counts Rankings
Rankings
264,440
9
9
Ranking Based On Selection: 22
Ranjeet Bhagooli
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,884
1,611
0.415
Corals/Coral reefs
coral bleaching
adaptation to climate change and sustainable development
* Total Citation Counts Rankings
Rankings
279,419
1,207
25
Ranking Based On Selection: 23
Marek Lipinski
Rhodes University
Grahamstown, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,646
961
0.264
cephalopods
all aspects
fish and fisheries
* Total Citation Counts Rankings
Rankings
286,204
121
50
Ranking Based On Selection: 24
Appeaning Addo Kwasi
University of Ghana
Legon, Ghana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,544
2,457
0.693
coastal erosion
shoreline change modelling
coastal processes
* Total Citation Counts Rankings
Rankings
297,657
1,308
30
Ranking Based On Selection: 25
Horst Kaiser
Rhodes University
Grahamstown, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,387
1,176
0.347