Thomas A. Johnston

2.1k total citations
66 papers, 1.8k citations indexed

About

Thomas A. Johnston is a scholar working on Nature and Landscape Conservation, Aquatic Science and Health, Toxicology and Mutagenesis. According to data from OpenAlex, Thomas A. Johnston has authored 66 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Nature and Landscape Conservation, 32 papers in Aquatic Science and 24 papers in Health, Toxicology and Mutagenesis. Recurrent topics in Thomas A. Johnston's work include Fish Ecology and Management Studies (48 papers), Mercury impact and mitigation studies (21 papers) and Fish Biology and Ecology Studies (19 papers). Thomas A. Johnston is often cited by papers focused on Fish Ecology and Management Studies (48 papers), Mercury impact and mitigation studies (21 papers) and Fish Biology and Ecology Studies (19 papers). Thomas A. Johnston collaborates with scholars based in Canada, United States and Sweden. Thomas A. Johnston's co-authors include William C. Leggett, Richard A. Cunjak, R. A. Bodaly, John M. Gunn, J. A. Mathias, John M. Casselman, Murray D. Wiegand, Muhammad Latif, Gretchen L. Lescord and Peter A. Cott and has published in prestigious journals such as Environmental Science & Technology, Ecology and The Science of The Total Environment.

In The Last Decade

Thomas A. Johnston

65 papers receiving 1.6k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Thomas A. Johnston Canada 25 1.1k 687 615 573 498 66 1.8k
Hein von Westernhagen Germany 26 457 0.4× 502 0.7× 470 0.8× 692 1.2× 619 1.2× 79 1.9k
James E. Breck United States 19 1.1k 1.0× 637 0.9× 459 0.7× 131 0.2× 561 1.1× 41 1.4k
J. A. Mathias Canada 18 592 0.6× 304 0.4× 478 0.8× 90 0.2× 308 0.6× 34 1.1k
Krzysztof Skóra Poland 16 454 0.4× 665 1.0× 230 0.4× 355 0.6× 320 0.6× 36 1.2k
Stellan F. Hamrin Sweden 15 1.4k 1.3× 1.1k 1.5× 445 0.7× 115 0.2× 524 1.1× 22 2.0k
John J. Ney United States 17 971 0.9× 521 0.8× 481 0.8× 79 0.1× 509 1.0× 49 1.3k
F. Saadet Karakulak Türkiye 18 455 0.4× 303 0.4× 503 0.8× 108 0.2× 712 1.4× 103 1.2k
Magnus Appelberg Sweden 19 784 0.7× 662 1.0× 244 0.4× 136 0.2× 424 0.9× 39 1.2k
Ronald J. Klauda United States 12 520 0.5× 406 0.6× 170 0.3× 118 0.2× 233 0.5× 28 809
Benjamin J. Laurel United States 26 712 0.7× 757 1.1× 320 0.5× 65 0.1× 1.3k 2.7× 64 1.9k

Countries citing papers authored by Thomas A. Johnston

Since Specialization
Citations

This map shows the geographic impact of Thomas A. Johnston'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 Thomas A. Johnston with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Thomas A. Johnston more than expected).

Fields of papers citing papers by Thomas A. Johnston

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Thomas A. Johnston. 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 Thomas A. Johnston. The network helps show where Thomas A. Johnston may publish in the future.

Co-authorship network of co-authors of Thomas A. Johnston

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas A. Johnston. A scholar is included among the top collaborators of Thomas A. Johnston 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 Thomas A. Johnston. Thomas A. Johnston is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Andersson, Matilda, Peter Eklöv, John M. Gunn, et al.. (2025). Dissolved organic carbon enhances terrestrial carbon pathways with limited effects on freshwater fish trophic position. Canadian Journal of Fisheries and Aquatic Sciences. 82. 1–15.
2.
3.
Johnston, Thomas A., et al.. (2024). Ontogenetic variation in isotopic niche positions of aquatic consumers in boreal lakes. Aquatic Sciences. 86(3). 1 indexed citations
4.
Lescord, Gretchen L., et al.. (2023). Biodilution of Organic Species of Arsenic in Freshwater Food Webs. Environmental Toxicology and Chemistry. 43(4). 833–846. 6 indexed citations
5.
Lescord, Gretchen L., et al.. (2022). The speciation of arsenic in the muscle tissue of inland and coastal freshwater fish from a remote boreal region. Chemosphere. 308(Pt 1). 136140–136140. 24 indexed citations
6.
Johnston, Thomas A., et al.. (2022). Age, body size, growth and dietary habits: What are the key factors driving individual variability in mercury of lacustrine fishes in northern temperate lakes?. Environmental Research. 213. 113740–113740. 10 indexed citations
7.
Melles, Stephanie, Robert Mackereth, Tyler D. Tunney, et al.. (2020). Climate and landscape conditions indirectly affect fish mercury levels by altering lake water chemistry and fish size. Environmental Research. 188. 109750–109750. 18 indexed citations
8.
Lescord, Gretchen L., Thomas A. Johnston, Wendel Keller, et al.. (2019). Arsenic, chromium, and other elements of concern in fish from remote boreal lakes and rivers: Drivers of variation and implications for subsistence consumption. Environmental Pollution. 259. 113878–113878. 16 indexed citations
9.
Johnston, Thomas A., et al.. (2012). Temporal changes in mercury concentrations of large-bodied fishes in the boreal shield ecoregion of northern Ontario, Canada. The Science of The Total Environment. 444. 409–416. 14 indexed citations
10.
Wiegand, Murray D., Thomas A. Johnston, Lisa R. Brown, et al.. (2011). Maternal influences on thiamine status of walleye Sander vitreus ova. Journal of Fish Biology. 78(3). 810–824. 4 indexed citations
11.
Venturelli, Paul, Cheryl A. Murphy, Brian J. Shuter, et al.. (2010). Maternal influences on population dynamics: evidence from an exploited freshwater fish. Ecology. 91(7). 2003–2012. 97 indexed citations
12.
Johnston, Thomas A., et al.. (2007). Hatching success of walleye embryos in relation to maternal and ova characteristics. Ecology Of Freshwater Fish. 16(3). 295–306. 54 indexed citations
13.
Wiegand, Murray D., Thomas A. Johnston, Jennifer Martin, & William C. Leggett. (2004). Variation in neutral and polar lipid compositions of ova in ten reproductively isolated populations of walleye (Sander vitreus). Canadian Journal of Fisheries and Aquatic Sciences. 61(1). 110–121. 41 indexed citations
14.
Latif, Muhammad, et al.. (2001). Effects of environmental and maternally derived methylmercury on the embryonic and larval stages of walleye (Stizostedion vitreum). Environmental Pollution. 111(1). 139–148. 83 indexed citations
15.
Latif, Muhammad, R. A. Bodaly, Thomas A. Johnston, & R. J. P. Fudge. (1999). Critical Stage in Developing Walleye Eggs. North American Journal of Aquaculture. 61(1). 34–37. 19 indexed citations
16.
Johnston, Thomas A.. (1999). Factors affecting food consumption and growth of walleye, Stizostedion vitreum, larvae in culture ponds. Hydrobiologia. 400(0). 129–140. 13 indexed citations
17.
Johnston, Thomas A.. (1997). Within-population variability in egg characteristics of walleye (Stizostedion vitreum) and white sucker (Catostomus commersoni). Canadian Journal of Fisheries and Aquatic Sciences. 54(5). 1006–1014. 52 indexed citations
18.
Johnston, Thomas A., et al.. (1994). Feeding Ecology of Walleye, Stizostedion vitreum, Larvae: Effects of Body Size, Zooplankton Abundance, and Zooplankton Community Composition. Canadian Journal of Fisheries and Aquatic Sciences. 51(9). 2077–2089. 29 indexed citations
19.
Johnston, Thomas A. & J. A. Mathias. (1993). Length reduction and dry weight loss in frozen and formalin-preserved larval walleye, Stizostedion vitreum (Mitchill). Aquaculture Research. 24(3). 365–371. 31 indexed citations
20.
Johnston, Thomas A., R. A. Bodaly, & J. A. Mathias. (1991). Predicting Fish Mercury Levels from Physical Characteristics of Boreal Reservoirs. Canadian Journal of Fisheries and Aquatic Sciences. 48(8). 1468–1475. 48 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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