Sigurd O. Stefansson
About
Sigurd O. Stefansson is a scholar working on Aquatic Science, Nature and Landscape Conservation and Ecology.
According to data from OpenAlex, Sigurd O. Stefansson has authored 188 papers receiving a total of 9.0k indexed citations (citations by other indexed papers that have themselves been cited), including 152 papers in Aquatic Science, 110 papers in Nature and Landscape Conservation and 66 papers in Ecology. Recurrent topics in Sigurd O. Stefansson's work include Aquaculture Nutrition and Growth (143 papers), Fish Ecology and Management Studies (109 papers) and Physiological and biochemical adaptations (60 papers). Sigurd O. Stefansson is often cited by papers focused on Aquaculture Nutrition and Growth (143 papers), Fish Ecology and Management Studies (109 papers) and Physiological and biochemical adaptations (60 papers). Sigurd O. Stefansson collaborates with scholars based in Norway, Iceland and Sweden. Sigurd O. Stefansson's co-authors include Albert K. Imsland, Sigurd O. Handeland, Björn Thrándur Björnsson, Arild Folkvord, Geir Lasse Taranger, Tom Hansen, Tom Ole Nilsen, Lars O.E. Ebbesson, Atle Foss and Thor Magne Jonassen and has published in prestigious journals such as PLoS ONE, The Journal of Comparative Neurology and Scientific Reports.
In The Last Decade
Sigurd O. Stefansson
186 papers receiving 8.5k citations
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late) cites · hero ref
| Name | h | Career | Trend | Papers | Cites | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Sigurd O. Stefansson Norway | 55 | 6.2k | 4.0k | 3.2k | 2.4k | 2.1k | 188 | 9.0k | ||
| Malcolm Jobling Norway | 69 | 9.0k 1.5× | 5.8k 1.5× | 4.0k 1.3× | 2.8k 1.2× | 3.3k 1.6× | 217 | 12.7k | ||
| Björn Thrándur Björnsson Sweden | 65 | 7.6k 1.2× | 3.9k 1.0× | 4.0k 1.3× | 3.4k 1.4× | 2.8k 1.4× | 227 | 12.8k | ||
| Stephen D. McCormick United States | 60 | 8.2k 1.3× | 6.4k 1.6× | 8.0k 2.5× | 2.6k 1.1× | 2.5k 1.2× | 231 | 13.8k | ||
| Niall Bromage United Kingdom | 53 | 5.6k 0.9× | 3.0k 0.7× | 1.1k 0.4× | 4.6k 1.9× | 1.2k 0.6× | 135 | 8.7k | ||
| Gilles Bœuf France | 44 | 3.4k 0.6× | 2.0k 0.5× | 2.5k 0.8× | 1.2k 0.5× | 1.2k 0.6× | 112 | 6.3k | ||
| Carl B. Schreck United States | 59 | 5.6k 0.9× | 5.0k 1.2× | 4.2k 1.3× | 3.2k 1.3× | 3.7k 1.8× | 231 | 11.2k | ||
| T.G. Pottinger United Kingdom | 57 | 5.2k 0.8× | 2.6k 0.6× | 3.8k 1.2× | 2.7k 1.1× | 4.2k 2.0× | 154 | 10.3k | ||
| Walton W. Dickhoff United States | 55 | 4.3k 0.7× | 2.2k 0.6× | 2.0k 0.6× | 3.2k 1.4× | 1.1k 0.5× | 132 | 7.9k | ||
| S.E. Wendelaar Bonga Netherlands | 60 | 7.0k 1.1× | 2.3k 0.6× | 5.9k 1.9× | 1.9k 0.8× | 4.4k 2.1× | 255 | 13.3k | ||
| Hervé Migaud United Kingdom | 42 | 3.2k 0.5× | 1.6k 0.4× | 1.3k 0.4× | 2.0k 0.8× | 1.3k 0.6× | 157 | 5.6k |
Countries citing papers authored by Sigurd O. Stefansson
Since
Specialization
Citations
This map shows the geographic impact of Sigurd O. Stefansson'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 Sigurd O. Stefansson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sigurd O. Stefansson more than expected).
Fields of papers citing papers by Sigurd O. Stefansson
Since
Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences
This network shows the impact of papers produced by Sigurd O. Stefansson. 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 Sigurd O. Stefansson. The network helps show where Sigurd O. Stefansson may publish in the future.
Co-authorship network of co-authors of Sigurd O. Stefansson
This figure shows the co-authorship network connecting the top 25 collaborators of Sigurd O. Stefansson. A scholar is included among the top collaborators of Sigurd O. Stefansson 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 Sigurd O. Stefansson. Sigurd O. Stefansson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
1.
Madaro, Angelico, Philip Antony Jesu Prabhu, Åshild Ønvik Pedersen, et al.. (2025). Long term effects of smolt and post-smolt production strategy on mortality, growth, sexual maturation and melanized focal changes in farmed Atlantic salmon (Salmo salar L.). Aquaculture. 602. 742371–742371.
2.
Gesto, Manuel, Marta C. Soares, Thor Magne Jonassen, et al.. (2025). License to chill: Environmental enrichment for post-vaccination recovery and social training of lumpfish (Cyclopterus lumpus). Aquaculture. 609. 742861–742861.
3.
Nuñez-Ortiz, Noelia, L.J. Moore, Tom Ole Nilsen, et al.. (2018). Atlantic salmon post-smolts adapted for a longer time to seawater develop an effective humoral and cellular immune response against Salmonid alphavirus. Fish & Shellfish Immunology. 82. 579–590.
4.
Moore, L.J., Tom Ole Nilsen, Per Gunnar Fjelldal, et al.. (2017). Triploid atlantic salmon (Salmo salar L.) post-smolts accumulate prevalence more slowly than diploid salmon following bath challenge with salmonid alphavirus subtype 3. PLoS ONE. 12(4). e0175468–e0175468.
5.
Ebbesson, Lars O.E., et al.. (2012). Isolation and characterization of melanopsin photoreceptors of atlantic salmon (Salmo salar). The Journal of Comparative Neurology. 520(16). 3727–3744.
6.
Stefansson, Sigurd O., Björn Thrándur Björnsson, Stephen D. McCormick, et al.. (2011). Growth, osmoregulation and endocrine changes in wild Atlantic salmon smolts and post-smolts during marine migration. Aquaculture. 362-363. 127–136.
7.
Kling, Peter, Ivar Rønnestad, Sigurd O. Stefansson, et al.. (2009). A homologous salmonid leptin radioimmunoassay indicates elevated plasma leptin levels during fasting of rainbow trout. General and Comparative Endocrinology. 162(3). 307–312.
8.
Murashita, Koji, Tadahide Kurokawa, Lars O.E. Ebbesson, Sigurd O. Stefansson, & Ivar Rønnestad. (2009). Characterization, tissue distribution, and regulation of agouti-related protein (AgRP), cocaine- and amphetamine-regulated transcript (CART) and neuropeptide Y (NPY) in Atlantic salmon (Salmo salar). General and Comparative Endocrinology. 162(2). 160–171.
9.
Foss, Atle, Albert K. Imsland, Bjørn Roth, E. Schram, & Sigurd O. Stefansson. (2007). Interactive effects of oxygen saturation and ammonia on growth and blood physiology in juvenile turbot. Aquaculture. 271(1-4). 244–251.
10.
Imsland, Albert K., Atle Foss, Gunnar Nævdal, et al.. (2007). New haemoglobin genotypes in Atlantic cod, Gadus morhua: Possible relation with growth. Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology. 147(4). 955–960.
11.
Ebbesson, Lars O.E., Christian K. Tipsmark, Bo Holmqvist, et al.. (2005). Nitric oxide synthase in the gill of Atlantic salmon: colocalization with and inhibition of Na+,K+-ATPase. Journal of Experimental Biology. 208(6). 1011–1017.
12.
Imsland, Albert K., Atle Foss, Geir Nævdal, et al.. (2004). Variations in growth in haemoglobin genotypes of Atlantic cod. Fish Physiology and Biochemistry. 30(1). 47–55.
13.
Hvattum, Erlend, Endre Dyrøy, Jon Skorve, et al.. (2004). Effects of 3-thia fatty acids on feed intake, growth, tissue fatty acid composition, β-oxidation and Na+,K+-ATPase activity in Atlantic salmon. Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology. 139(4). 657–668.
14.
Fivelstad, Sveinung, Anne Berit Olsen, Sigurd O. Stefansson, et al.. (2004). Lack of long-term sublethal effects of reduced freshwater pH alone on Atlantic salmon (Salmo salar) smolts subsequently transferred to seawater. Canadian Journal of Fisheries and Aquatic Sciences. 61(4). 511–518.
15.
Hoare, Rowena, Anne L Langston, Albert K. Imsland, et al.. (2002). Susceptibility of three different strains of juvenile Atlantic halibut (Hippoglossus hippoglossus L.) cultured at two different temperatures to Vibrio anguillarum and temperature effect on antibody response. Fish & Shellfish Immunology. 13(2). 111–123.
16.
Stefansson, Sigurd O., et al.. (1998). Changes in seawater tolerance and gill Na+,K+-ATPase activity during desmoltification in Atlantic salmon kept in freshwater at different temperatures. Aquaculture. 168(1-4). 271–277.
17.
Berg, A., Tom Hansen, & Sigurd O. Stefansson. (1992). First feeding of Atlantic salmon (Salmo salar L.) under different photoperiods. Journal of Applied Ichthyology. 8(1-4). 251–256.
18.
Stefansson, Sigurd O., Ragnar Nortvedt, Tom Hansen, & Geir Lasse Taranger. (1990). First feeding of Atlantic salmon, Salmo salar L., under different photoperiods and light intensities. Aquaculture Research. 21(4). 435–441.
19.
Stefansson, Sigurd O., Tom Hansen, & Jens‐Christian Holm. (1987). Seawater adaptability of two strains of arctic char (Salvelinus alpinus) reared under different light regimes. Duo Research Archive (University of Oslo).
20.
Stefansson, Sigurd O., Tom Hansen, Gunnar Nævdal, & Ole Torrissen. (1985). The effect of different photoperiods on growth and smoltification in Atlantic salmon (Salmo salar). Duo Research Archive (University of Oslo).
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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