| Environmental Sciences |
43 |
| Ecology |
37 |
| Plant Sciences |
30 |
| Marine & Freshwater Biology |
24 |
| Multidisciplinary Sciences |
21 |
| Forestry |
19 |
| Microbiology |
16 |
| Biodiversity Conservation |
15 |
| Biology |
15 |
| Environmental Studies |
15 |
| Biotechnology & Applied Microbiology |
10 |
| Computer Science, Artificial Intelligence |
10 |
| Water Resources |
10 |
| Green & Sustainable Science & Technology |
9 |
| Fisheries |
9 |
| Engineering, Environmental |
8 |
| Evolutionary Biology |
8 |
| Biochemistry & Molecular Biology |
8 |
| Zoology |
8 |
| Economics |
7 |
| Engineering, Electrical & Electronic |
7 |
| Oceanography |
7 |
| Geography, Physical |
7 |
| Mathematical & Computational Biology |
6 |
| Soil Science |
5 |
| Agronomy |
4 |
| Geosciences, Multidisciplinary |
4 |
| Computer Science, Information Systems |
4 |
| Physiology |
4 |
| Meteorology & Atmospheric Sciences |
4 |
| Toxicology |
3 |
| Computer Science, Theory & Methods |
3 |
| Telecommunications |
3 |
| Genetics & Heredity |
3 |
| Medicine, Research & Experimental |
3 |
| Ornithology |
3 |
| Mathematics, Interdisciplinary Applications |
3 |
| Geography |
3 |
| Mathematics |
3 |
| Chemistry, Multidisciplinary |
3 |
| Infectious Diseases |
2 |
| Instruments & Instrumentation |
2 |
| Agriculture, Dairy & Animal Science |
2 |
| Entomology |
2 |
| Biophysics |
2 |
| Urban Studies |
2 |
| Medical Informatics |
2 |
| Energy & Fuels |
2 |
| Endocrinology & Metabolism |
2 |
| Veterinary Sciences |
2 |
| International Relations |
2 |
| Computer Science, Interdisciplinary Applications |
2 |
| Engineering, Multidisciplinary |
2 |
| Public, Environmental & Occupational Health |
2 |
| Social Sciences, Mathematical Methods |
2 |
| Dermatology |
1 |
| Mycology |
1 |
| Physics, Applied |
1 |
| Nanoscience & Nanotechnology |
1 |
| Health Policy & Services |
1 |
| Polymer Science |
1 |
| Operations Research & Management Science |
1 |
| Chemistry, Medicinal |
1 |
| Automation & Control Systems |
1 |
| Electrochemistry |
1 |
| Materials Science, Multidisciplinary |
1 |
| Development Studies |
1 |
| Immunology |
1 |
| Social Sciences, Interdisciplinary |
1 |
| Agriculture, Multidisciplinary |
1 |
| Engineering, Civil |
1 |
| Political Science |
1 |
| Anthropology |
1 |
| Business |
1 |
| History |
1 |
| Nutrition & Dietetics |
1 |
| Sociology |
1 |
| Neurosciences |
1 |
| Parasitology |
1 |
| Engineering, Chemical |
1 |
| Limnology |
1 |
| Tropical Medicine |
1 |
| Virology |
1 |
| Behavioral Sciences |
1 |
| Area Studies |
1 |
| Agricultural Economics & Policy |
1 |
| Chemistry, Organic |
1 |
| Paleontology |
1 |
| Food Science & Technology |
1 |
| Horticulture |
1 |
| Chemistry, Analytical |
1 |
| Biochemical Research Methods |
1 |