| Global economic costs of aquatic invasive alien species | Science of the Total Environment | 2021 | 62 |
| Antiviral drug discovery: preparing for the next pandemic | Chemical Society Reviews | 2021 | 50 |
| Plant-Based Synthesis of Silver Nanoparticles Using Aqueous Leaf Extract of Salvia officinalis: Characterization and its Antiplasmodial Activity | Journal of Cluster Science | 2021 | 31 |
| The Biological Assessment and Rehabilitation of the World's Rivers: An Overview | Water (Switzerland) | 2021 | 29 |
| Policy responses to reduce single-use plastic marine pollution in the Caribbean | Marine Pollution Bulletin | 2021 | 24 |
| Climate change and marine turtles: recent advances and future directions | Endangered Species Research | 2021 | 21 |
| Networked Learning in 2021: A Community Definition | Postdigital Science and Education | 2021 | 18 |
| Primary beam effects of radio astronomy antennas – II. Modelling MeerKAT L-band beams | Monthly Notices of the Royal Astronomical Society | 2021 | 18 |
| Fucoidan Structure and Its Impact on Glucose Metabolism: Implications for Diabetes and Cancer Therapy | Marine Drugs | 2021 | 17 |
| Global Participation in and Public Attitudes Toward Recreational Fishing: International Perspectives and Developments | Reviews in Fisheries Science and Aquaculture | 2021 | 16 |
| Colonial history and global economics distort our understanding of deep-time biodiversity. | Nature Ecology and Evolution | 2021 | 15 |
| Towards a caring transdisciplinary research practice: navigating science, society and self | Ecosystems and People | 2021 | 15 |
| Non-ammocoete larvae of Palaeozoic stem lampreys | Nature | 2021 | 13 |
| H i intensity mapping with MeerKAT: calibration pipeline for multidish autocorrelation observations | Monthly Notices of the Royal Astronomical Society | 2021 | 13 |
| Vesicular drug delivery for the treatment of topical disorders: current and future perspectives | Journal of Pharmacy and Pharmacology | 2021 | 13 |
| The natural environment in port development: A ‘green handbrake’ or an equal partner? | Ocean and Coastal Management | 2021 | 12 |
| Testing a global standard for quantifying species recovery and assessing conservation impact | Conservation Biology | 2021 | 11 |
| A Review of Freshwater Crayfish Introductions in Africa | Reviews in Fisheries Science and Aquaculture | 2021 | 11 |
| The Legacy Effects of Colonial and Apartheid Imprints on Urban Greening in South Africa: Spaces, Species, and Suitability | Frontiers in Ecology and Evolution | 2021 | 11 |
| Microplastic leachates induce species-specific trait strengthening in intertidal mussels | Ecological Applications | 2021 | 11 |
| The black hole transient MAXI J1348–630: evolution of the compact and transient jets during its 2019/2020 outburst | Monthly Notices of the Royal Astronomical Society | 2021 | 11 |
| MIGHTEE: are giant radio galaxies more common than we thought? | Monthly Notices of the Royal Astronomical Society | 2021 | 10 |
| Eight new millisecond pulsars from the first MeerKAT globular cluster census | Monthly Notices of the Royal Astronomical Society | 2021 | 10 |
| Thirty years of Male Daughters, Female Husbands: revisiting Ifi Amadiume’s questions on gender, sex and political economy | Journal of Contemporary African Studies | 2021 | 10 |
| Identifying and classifying macroinvertebrate indicator signature traits and ecological preferences along urban pollution gradient in the Niger Delta | Environmental Pollution | 2021 | 9 |
