Citation Rankings
Highly Cited Researchers

Institute of Hydrobiology of the CAS Highly Cited Researchers CitationNatural Sciences / Biological Science Rankings 2025

Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation IndexUniversities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025

* Total Citation Counts Rankings
Ranking Based On Selection :1
Czech Republic
Rohit Ghai
Aquatic Microbial Ecology
Metagenomics
Comparative Genomics
Virus-host interactions
Bacteriophages
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,002
4,497
0.500
* Total Citation Counts Rankings
Ranking Based On Selection :2
Czech Republic
Josef Hejzlar
water chemistry
nutrient cycling
eutrophication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,451
2,783
0.431
* Total Citation Counts Rankings
Ranking Based On Selection :3
Czech Republic
Jan Kubečka
hydrobiologie ekologie ryb
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,831
2,476
0.425
* Total Citation Counts Rankings
Ranking Based On Selection :4
Czech Republic
Martin Čech
fish ecology
fish behavior
diet of fish-eating birds and mammals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,088
1,615
0.523
* Total Citation Counts Rankings
Ranking Based On Selection :5
Czech Republic
Milan Riha
Fish biology
Limnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,275
1,405
0.618
* Total Citation Counts Rankings
Ranking Based On Selection :6
Czech Republic
Petr Znachor
limnology
hydrobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,873
1,089
0.581
* Total Citation Counts Rankings
Ranking Based On Selection :7
Czech Republic
Markus Haber
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,111
675
0.608
* Total Citation Counts Rankings
Ranking Based On Selection :8
Czech Republic
Radka Symonova
Animal genome evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,109
777
0.701
* Total Citation Counts Rankings
Ranking Based On Selection :9
Czech Republic
Marek Šmejkal
conservation ecology
invasion biology
fish behaviour
reproduction
predator-prey interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
945
858
0.908
* Total Citation Counts Rankings
Ranking Based On Selection :10
Czech Republic
Tanja Shabarova
cave microbiology
microbial ecology
groundwater microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
825
519
0.629
* Total Citation Counts Rankings
Rankings
107,913
Czech Republic
135
1
Ranking Based On Selection: 1
Rohit Ghai
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,002
4,497
0.500
Aquatic Microbial Ecology
Metagenomics
Comparative Genomics
Virus-host interactions
Bacteriophages
* Total Citation Counts Rankings
Rankings
155,052
Czech Republic
245
2
Ranking Based On Selection: 2
Josef Hejzlar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,451
2,783
0.431
water chemistry
nutrient cycling
eutrophication
* Total Citation Counts Rankings
Rankings
171,746
Czech Republic
293
3
Ranking Based On Selection: 3
Jan Kubečka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,831
2,476
0.425
* Total Citation Counts Rankings
Rankings
307,415
Czech Republic
694
5
Ranking Based On Selection: 4
Martin Čech
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,088
1,615
0.523
fish ecology
fish behavior
diet of fish-eating birds and mammals
* Total Citation Counts Rankings
Rankings
391,716
Czech Republic
1,014
6
Ranking Based On Selection: 5
Milan Riha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,275
1,405
0.618
* Total Citation Counts Rankings
Rankings
451,368
Czech Republic
1,199
8
Ranking Based On Selection: 6
Petr Znachor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,873
1,089
0.581
* Total Citation Counts Rankings
Rankings
628,663
Czech Republic
1,916
9
Ranking Based On Selection: 7
Markus Haber
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,111
675
0.608
* Total Citation Counts Rankings
Rankings
629,245
Czech Republic
1,921
10
Ranking Based On Selection: 8
Radka Symonova
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,109
777
0.701
* Total Citation Counts Rankings
Rankings
686,340
Czech Republic
2,173
11
Ranking Based On Selection: 9
Marek Šmejkal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
945
858
0.908
conservation ecology
invasion biology
fish behaviour
reproduction
predator-prey interactions
* Total Citation Counts Rankings
Rankings
735,278
Czech Republic
2,374
12
Ranking Based On Selection: 10
Tanja Shabarova
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
825
519
0.629
cave microbiology
microbial ecology
groundwater microbiology