Denis Tweddle

3.4k total citations
46 papers, 830 citations indexed

About

Denis Tweddle is a scholar working on Nature and Landscape Conservation, Aquatic Science and Ecology. According to data from OpenAlex, Denis Tweddle has authored 46 papers receiving a total of 830 indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Nature and Landscape Conservation, 36 papers in Aquatic Science and 30 papers in Ecology. Recurrent topics in Denis Tweddle's work include Fish Biology and Ecology Studies (36 papers), Aquatic Ecosystems and Biodiversity (26 papers) and Fish Ecology and Management Studies (26 papers). Denis Tweddle is often cited by papers focused on Fish Biology and Ecology Studies (36 papers), Aquatic Ecosystems and Biodiversity (26 papers) and Fish Ecology and Management Studies (26 papers). Denis Tweddle collaborates with scholars based in South Africa, United Kingdom and Canada. Denis Tweddle's co-authors include Olaf L. F. Weyl, David H. Eccles, R. Crossley, R. Bernhart Owen, I. Kornfield, Thomas C. Johnson, Anthony J. Ribbink, Paul Skelton, I. G. Cowx and N. Dean Impson and has published in prestigious journals such as Journal of Fish Biology, ICES Journal of Marine Science and Journal of Zoology.

In The Last Decade

Denis Tweddle

41 papers receiving 742 citations

Peers

Denis Tweddle

ECOLO

NLC

GPC

GENET

Ashley D. Ficke United States

Ulrika Beier Sweden

Howard L. Jelks United States

Patrick J. Martinez United States

Katie E. Howland Canada

Matthew S. Kornis United States

Peter C. Jacobson United States

Patricio J. Macchi Argentina

Gavin C. Christie United States

Frederic Casals Spain

Ashley D. Ficke United States

Denis Tweddle

588 ×1.1

ECOLO

668 ×1.3

NLC

305 ×0.8

241 ×1.6

GPC

48 ×0.6

GENET

Citations per year, relative to Denis Tweddle Denis Tweddle (= 1×) peers Ashley D. Ficke

Countries citing papers authored by Denis Tweddle

Since Specialization

Citations

This map shows the geographic impact of Denis Tweddle's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Denis Tweddle with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Denis Tweddle more than expected).

Fields of papers citing papers by Denis Tweddle

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Denis Tweddle. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Denis Tweddle. The network helps show where Denis Tweddle may publish in the future.

Co-authorship network of co-authors of Denis Tweddle

This figure shows the co-authorship network connecting the top 25 collaborators of Denis Tweddle. A scholar is included among the top collaborators of Denis Tweddle based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Denis Tweddle. Denis Tweddle is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Friel, John, et al.. (2023). Two New Species of Suckermouth Catfishes (Mochokidae: Chiloglanis) from Upper Guinean Forest Streams in West Africa. Ichthyology & Herpetology. 111(3). 376–389. 1 indexed citations

Stauffer, Jay R., et al.. (2022). Nile Tilapia, Oreochromis niloticus (Teleostei: Cichlidae): a threat to native fishes of Lake Malawi?. Biological Invasions. 24(6). 1585–1597. 16 indexed citations

Cowx, I. G., Nicholas E. Mandrak, Paul Skelton, & Denis Tweddle. (2021). Professor Olaf Lawrence Fredrick Weyl (1972–2020). Journal of Fish Biology. 98(1). 4–5.

Weyl, Olaf L. F., Kevin W. Christison, Tatenda Dalu, et al.. (2020). Ten research questions to support South Africa’s Inland Fisheries Policy. African Journal of Aquatic Science. 46(1). 1–10. 12 indexed citations

Bills, Roger, et al.. (2020). Diversity of the southern Africa Lacustricola Myers, 1924 and redescription of Lacustricola johnstoni (Günther, 1894) and Lacustricola myaposae (Boulenger, 1908) (Cyprinodontiformes, Procatopodidae). ZooKeys. 923. 91–113. 8 indexed citations

Tweddle, Denis, et al.. (2018). Climate, fish, and people in Zambezian fisheries, with emphasis on a natural flood cycle in the ephemeral Lake Liambezi. Biodiversity & Ecology. 6. 466–479. 1 indexed citations

Tweddle, Denis. (2017). A transboundary fisheries management plan for the Okavango/Kavango/Cubango basin. 1 indexed citations

Tweddle, Denis, et al.. (2015). Ecology, fish and fishery of Lake Liambezi, a recently refilled floodplain lake in the Zambezi Region, Namibia. African Journal of Aquatic Science. 40(4). 417–424. 10 indexed citations

Tweddle, Denis & George F. Turner. (2014). Evidence for lacustrine breeding by sanjikaOpsaridium microcephalum(Teleostei: Cyprinidae) in Lake Malawi. African Journal of Aquatic Science. 39(4). 479–480. 3 indexed citations

10.

Russell, Barry C. & Denis Tweddle. (2013). A new species of Nemipterus (Pisces: Nemipteridae) from the Western Indian Ocean. Zootaxa. 3630(1). 191–7. 1 indexed citations

11.

Conradie, Werner, Denis Tweddle, Tuuli Mäkinen, & Roger Bills. (2012). Description of the tadpole of Hylarana darlingi Boulenger 1902 (Anura: Ranidae) from the Mulanje Area, Malawi. Zootaxa. 3441(1). 1 indexed citations

12.

Darwall, William, Robert A. Holland, Kevin G. Smith, et al.. (2011). Implications of bias in conservation research and investment for freshwater species. Conservation Letters. 4(6). 474–482. 146 indexed citations

13.

Linke, Simon, Virgilio Hermoso, Ernst R. Swartz, et al.. (2011). Conservation of freshwater ecosystems. Griffith Research Online (Griffith University, Queensland, Australia). 270–287. 1 indexed citations

14.

Tweddle, Denis, et al.. (2009). Unlocking the secrets of the sea : new fish species in the Indian Ocean : science in action. 5(2). 30–34.

15.

Tweddle, Denis & M. Eric Anderson. (2008). A collection of marine fishes from Angola, with notes on new distribution records. AquaDocs (United Nations Educational, Scientific and Cultural Organization). 8. 3–24. 10 indexed citations

16.

Tweddle, Denis & Paul Skelton. (2008). New species of 'Barbus' and Labeobarbus (Teleostei: Cyprinidae) from the South Rukuru River, Malawi, Africa. 11 indexed citations

17.

Njiru, M., I. G. Cowx, K. M. Mavuti, M. J. Ntiba, & Denis Tweddle. (2000). Changes in the feeding biology of Oreochromis niloticus (L), and the future of Lake Victoria fisheries. 1 indexed citations

18.

Tweddle, Denis, et al.. (1997). PRELIMINARY OBSERVATIONS ON THE FISH POPULATIONS OF THE RECENTLY-IMPOUNDED KATSE RESERVOIR, LESOTHO. 23(2). 7–20. 2 indexed citations

19.

Owen, R. Bernhart, R. Crossley, Thomas C. Johnson, et al.. (1990). Major low levels of Lake Malawi and their implications for speciation rates in cichlid fishes. Proceedings of the Royal Society of London. Series B, Biological sciences. 240(1299). 519–553. 182 indexed citations

20.

Tweddle, Denis, et al.. (1977). Age, growth and natural mortality rates of some cichlid fishes of Lake Malawi. Journal of Fish Biology. 10(4). 385–398. 25 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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