Ole Sortkjær

1.6k total citations
11 papers, 802 citations indexed

About

Ole Sortkjær is a scholar working on Environmental Chemistry, Nature and Landscape Conservation and Ecology. According to data from OpenAlex, Ole Sortkjær has authored 11 papers receiving a total of 802 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Environmental Chemistry, 5 papers in Nature and Landscape Conservation and 4 papers in Ecology. Recurrent topics in Ole Sortkjær's work include Aquatic Ecosystems and Phytoplankton Dynamics (5 papers), Fish Ecology and Management Studies (5 papers) and Odor and Emission Control Technologies (2 papers). Ole Sortkjær is often cited by papers focused on Aquatic Ecosystems and Phytoplankton Dynamics (5 papers), Fish Ecology and Management Studies (5 papers) and Odor and Emission Control Technologies (2 papers). Ole Sortkjær collaborates with scholars based in Denmark, United States and United Kingdom. Ole Sortkjær's co-authors include Erik Jeppesen, Martin Søndergaard, Erik Lykke Mortensen, Peter Kristensen, Jens Peder Jensen, Martin Mørk Larsen, Jakob Strand, R. Bossi, Kirsten Olrik and Lars‐Flemming Pedersen and has published in prestigious journals such as Environment International, Hydrobiologia and Journal of Plankton Research.

In The Last Decade

Ole Sortkjær

11 papers receiving 710 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ole Sortkjær Denmark 8 646 354 239 214 159 11 802
I. J. Davies Canada 8 261 0.4× 355 1.0× 247 1.0× 173 0.8× 176 1.1× 9 652
Mónica M. Diaz Argentina 13 304 0.5× 240 0.7× 96 0.4× 73 0.3× 222 1.4× 25 609
María de los Ángeles González Sagrario Argentina 13 353 0.5× 285 0.8× 141 0.6× 71 0.3× 170 1.1× 23 585
Georg Wolfram Austria 14 261 0.4× 353 1.0× 149 0.6× 125 0.6× 123 0.8× 40 668
E. R. DeBruyn Canada 6 348 0.5× 266 0.8× 146 0.6× 46 0.2× 230 1.4× 7 606
Haruo Fukuhara Japan 15 508 0.8× 314 0.9× 84 0.4× 172 0.8× 101 0.6× 41 776
Pedro Temporetti Argentina 12 287 0.4× 219 0.6× 87 0.4× 63 0.3× 144 0.9× 32 584
Roberto Escaray Argentina 13 461 0.7× 306 0.9× 117 0.5× 108 0.5× 303 1.9× 19 731
Douglas M. Fiebig Germany 12 497 0.8× 539 1.5× 249 1.0× 48 0.2× 153 1.0× 14 835
Alicia Vinocur Argentina 21 348 0.5× 603 1.7× 80 0.3× 152 0.7× 328 2.1× 45 977

Countries citing papers authored by Ole Sortkjær

Since Specialization
Citations

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

Fields of papers citing papers by Ole Sortkjær

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ole Sortkjær. 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 Ole Sortkjær. The network helps show where Ole Sortkjær may publish in the future.

Co-authorship network of co-authors of Ole Sortkjær

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

All Works

11 of 11 papers shown
1.
Sortkjær, Ole, N Henriksen, Rasmus Demuth Heinecke, & Lars‐Flemming Pedersen. (2008). Optimering af behandlingseffekten i akvakultur: Minimering af forbrug og udledning af hjælpestoffer. 1 indexed citations
2.
Bruun, Morten Sichlau, Lars‐Flemming Pedersen, Inger Dalsgaard, Per Bovbjerg Pedersen, & Ole Sortkjær. (2007). The fate of chemical additives and antimicrobial agents applied in Danish freshwater fish farms.. Technical University of Denmark, DTU Orbit (Technical University of Denmark, DTU). 38(1). 57–61. 1 indexed citations
3.
Bossi, R., Jakob Strand, Ole Sortkjær, & Martin Mørk Larsen. (2007). Perfluoroalkyl compounds in Danish wastewater treatment plants and aquatic environments. Environment International. 34(4). 443–450. 206 indexed citations
4.
Pedersen, Lars‐Flemming, Per Bovbjerg Pedersen, & Ole Sortkjær. (2006). Temperature-dependent and surface specific formaldehyde degradation in submerged biofilters. Aquacultural Engineering. 36(2). 127–136. 39 indexed citations
5.
Pedersen, Lars‐Flemming, Per Bovbjerg Pedersen, & Ole Sortkjær. (2005). Dose-dependent decomposition rate constants of hydrogen peroxide in small-scale bio filters. Aquacultural Engineering. 34(1). 8–15. 22 indexed citations
6.
Jeppesen, Erik, Martin Søndergaard, Jens Peder Jensen, Erik Lykke Mortensen, & Ole Sortkjær. (1996). Fish-induced changes in zooplankton grazing on phytoplankton and bacterioplankton: a long-term study in shallow hypertrophic Lake Søbygaard. Journal of Plankton Research. 18(9). 1605–1625. 42 indexed citations
7.
Hansen, Anne‐Mette, et al.. (1991). Effect of high pH on zooplankton and nutrients in fishfree enclosures. Archiv für Hydrobiologie. 123(2). 143–164. 26 indexed citations
8.
Jeppesen, Erik, Jens Peder Jensen, Peter Kristensen, et al.. (1990). Fish manipulation as a lake restoration tool in shallow, eutrophic, temperate lakes 2: threshold levels, long-term stability and conclusions. Hydrobiologia. 200-201(1). 219–227. 264 indexed citations
9.
Jeppesen, Erik, Martin Søndergaard, Erik Lykke Mortensen, et al.. (1990). Fish manipulation as a lake restoration tool in shallow, eutrophic temperate lakes 1: cross-analysis of three Danish case-studies. Hydrobiologia. 200-201(1). 205–218. 82 indexed citations
10.
11.
Jeppesen, Erik, et al.. (1987). Lake S�bygaard: a shallow lake in recovery after a reduction in phosphorus loading. GeoJournal. 14(3). 3 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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