J. A. Johansen

633 total citations
11 papers, 503 citations indexed

About

J. A. Johansen is a scholar working on Aquatic Science, Ecology and Nature and Landscape Conservation. According to data from OpenAlex, J. A. Johansen has authored 11 papers receiving a total of 503 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Aquatic Science, 6 papers in Ecology and 4 papers in Nature and Landscape Conservation. Recurrent topics in J. A. Johansen's work include Aquaculture Nutrition and Growth (7 papers), Physiological and biochemical adaptations (5 papers) and Environmental Toxicology and Ecotoxicology (3 papers). J. A. Johansen is often cited by papers focused on Aquaculture Nutrition and Growth (7 papers), Physiological and biochemical adaptations (5 papers) and Environmental Toxicology and Ecotoxicology (3 papers). J. A. Johansen collaborates with scholars based in Canada. J. A. Johansen's co-authors include Anthony P. Farrell, Raul K. Suarez, Mark S. Graham, Christopher D. Moyes, Timothy G. West, J. F. Steffensen, A. P. Farrell, G. H. Geen, Richard W. Brill and Peter S. Davie and has published in prestigious journals such as Canadian Journal of Fisheries and Aquatic Sciences, Environmental Toxicology and Chemistry and Canadian Journal of Zoology.

In The Last Decade

J. A. Johansen

11 papers receiving 437 citations

Peers

J. A. Johansen

ECOLO

NLC

HTM

IMMUN

C. Daxboeck Canada

James Cameron United States

Gregg A. Kormanik United States

M. Stephen Haswell Canada

Kai Westman Finland

T. Georgalis Canada

D. W. Duff United States

P. R. H. Wilkes Canada

W. S. Marshall Canada

Lene H. Petersen United States

C. Daxboeck Canada

J. A. Johansen

576 ×1.5

ECOLO

287 ×1.2

NLC

243 ×1.1

24 ×0.4

HTM

83 ×1.4

IMMUN

Citations per year, relative to J. A. Johansen J. A. Johansen (= 1×) peers C. Daxboeck

Countries citing papers authored by J. A. Johansen

Since Specialization

Citations

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

Fields of papers citing papers by J. A. Johansen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. A. Johansen

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

All Works

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11 of 11 papers shown

Kennedy, Christopher J., R. M. Sweeting, J. A. Johansen, Anthony P. Farrell, & Brian A. McKeown. (1995). ACUTE EFFECTS OF CHLORINATED RESIN ACID EXPOSURE ON JUVENILE RAINBOW TROUT, ONCORHYNCHUS MYKISS. Environmental Toxicology and Chemistry. 14(6). 977–977. 3 indexed citations

Farrell, Anthony P. & J. A. Johansen. (1995). Vasoactivity of the coronary artery of rainbow trout, steelhead trout, and dogfish: lack of support for non-prostanoid endothelium-derived relaxation factors. Canadian Journal of Zoology. 73(10). 1899–1911. 37 indexed citations

Kennedy, Christopher J., R. M. Sweeting, Anthony P. Farrell, Brian A. McKeown, & J. A. Johansen. (1995). Acute effects of chlorinated resin acid exposure on juvenile rainbow trout, Oncorhynchus mykiss. Environmental Toxicology and Chemistry. 14(6). 977–982. 28 indexed citations

Johansen, J. A., C.J. Kennedy, R. M. Sweeting, Anthony P. Farrell, & B.A. McKeown. (1994). Sublethal Effects of Tetrachloroguaiacol on Juvenile Rainbow Trout, Oncorhynchus mykiss, following Acute and Chronic Exposure. Canadian Journal of Fisheries and Aquatic Sciences. 51(9). 1967–1974. 12 indexed citations

Farrell, Anthony P. & J. A. Johansen. (1992). Reevaluation of regression of coronary arteriosclerotic lesions in repeat-spawning steelhead trout.. Arteriosclerosis and Thrombosis A Journal of Vascular Biology. 12(10). 1171–1175. 7 indexed citations

Farrell, Anthony P., Peter S. Davie, Craig E. Franklin, J. A. Johansen, & Richard W. Brill. (1992). Cardiac physiology in tunas. I. In vitro perfused heart preparations from yellowfin and skipjack tunas. Canadian Journal of Zoology. 70(6). 1200–1210. 47 indexed citations

Farrell, Anthony P., J. A. Johansen, & Raul K. Suarez. (1991). Effects of exercise-training on cardiac performance and muscle enzymes in rainbow trout,Oncorhynchus mykiss. Fish Physiology and Biochemistry. 9(4). 303–312. 122 indexed citations

Johansen, J. A. & G. H. Geen. (1990). Sublethal and acute toxicity of the ethylene glycol butyl ether ester formulation of triclopyr to juvenile coho salmon (Oncorhynchus kisutch). Archives of Environmental Contamination and Toxicology. 19(4). 610–616. 25 indexed citations

Farrell, A. P., J. A. Johansen, J. F. Steffensen, et al.. (1990). Effects of exercise training and coronary ablation on swimming performance, heart size, and cardiac enzymes in rainbow trout, Oncorhynchus mykiss. Canadian Journal of Zoology. 68(6). 1174–1179. 128 indexed citations

10.

Farrell, Anthony P., J. A. Johansen, & Richard L. Saunders. (1990). Coronary lesions in Pacific salmonids. Journal of Fish Diseases. 13(1). 97–100. 22 indexed citations

11.

Farrell, Anthony P., J. A. Johansen, & Mark S. Graham. (1988). The Role of the Pericardium in Cardiac Performance of the Trout (Salmo gairdneri). Physiological Zoology. 61(3). 213–221. 72 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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