Kjetill Østgaard

3.3k total citations
66 papers, 2.5k citations indexed

About

Kjetill Østgaard is a scholar working on Aquatic Science, Pollution and Oceanography. According to data from OpenAlex, Kjetill Østgaard has authored 66 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Aquatic Science, 12 papers in Pollution and 12 papers in Oceanography. Recurrent topics in Kjetill Østgaard's work include Seaweed-derived Bioactive Compounds (14 papers), Wastewater Treatment and Nitrogen Removal (11 papers) and Algal biology and biofuel production (9 papers). Kjetill Østgaard is often cited by papers focused on Seaweed-derived Bioactive Compounds (14 papers), Wastewater Treatment and Nitrogen Removal (11 papers) and Algal biology and biofuel production (9 papers). Kjetill Østgaard collaborates with scholars based in Norway, Netherlands and Mexico. Kjetill Østgaard's co-authors include Kjell M. Vårum, Olav Smidsrød, Sabina P. Strand, Kurt I. Draget, Arne Jensen, Einar Moen, Svein Jarle Horn, Terje Espevik, Gudmund Skjåk‐Bræk and Patrick Soon‐Shiong and has published in prestigious journals such as Water Research, Scientific Reports and Journal of Cell Science.

In The Last Decade

Kjetill Østgaard

66 papers receiving 2.4k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Kjetill Østgaard Norway	29	417	416	409	380	350	66	2.5k
Tatsuya Masuko Japan	11	568 1.4×	166 0.4×	356 0.9×	206 0.5×	360 1.0×	17	2.5k
Naotsugu Nagasawa Japan	28	319 0.8×	154 0.4×	1.6k 3.8×	360 0.9×	657 1.9×	91	3.2k
Cláudia Nunes Portugal	36	431 1.0×	149 0.4×	945 2.3×	400 1.1×	505 1.4×	135	3.8k
Hyun‐Woo Kim South Korea	34	415 1.0×	494 1.2×	207 0.5×	57 0.1×	897 2.6×	197	3.9k
Arup Ghosh India	38	548 1.3×	145 0.3×	132 0.3×	474 1.2×	754 2.2×	169	4.6k
Ida Romano Italy	32	1.1k 2.5×	266 0.6×	341 0.8×	71 0.2×	402 1.1×	97	2.8k
Walter Mulbry United States	36	543 1.3×	1.6k 3.9×	159 0.4×	71 0.2×	405 1.2×	75	4.0k
Tamikazu Kume Japan	30	382 0.9×	129 0.3×	1.4k 3.5×	213 0.6×	534 1.5×	118	3.4k
Vincent Gloaguen France	23	168 0.4×	118 0.3×	627 1.5×	82 0.2×	320 0.9×	71	1.9k

Countries citing papers authored by Kjetill Østgaard

Since Specialization

Citations

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

Fields of papers citing papers by Kjetill Østgaard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kjetill Østgaard

This figure shows the co-authorship network connecting the top 25 collaborators of Kjetill Østgaard. A scholar is included among the top collaborators of Kjetill Østgaard 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 Kjetill Østgaard. Kjetill Østgaard 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

Bakke, Ingrid, et al.. (2021). Understanding structure/function relationships in nitrifying microbial communities after cross-transfer between freshwater and seawater. Scientific Reports. 11(1). 2979–2979. 9 indexed citations

Bakke, Rune, et al.. (2018). Mapping anaerobic sludge bed community adaptations to manure supernatant in biogas reactors. Scientific Reports. 8(1). 15870–15870. 3 indexed citations

Bakke, Ingrid, et al.. (2017). Changes in the microbial community of an anammox consortium during adaptation to marine conditions revealed by 454 pyrosequencing. Applied Microbiology and Biotechnology. 101(12). 5149–5162. 56 indexed citations

Vadstein, Ôlav, et al.. (2017). Anaerobic digestion of pig manure supernatant at high ammonia concentrations characterized by high abundances of Methanosaeta and non-euryarchaeotal archaea. Scientific Reports. 7(1). 15077–15077. 41 indexed citations

Bakke, Ingrid, et al.. (2016). Nitrification at different salinities: Biofilm community composition and physiological plasticity. Water Research. 95. 48–58. 118 indexed citations

Østgaard, Kjetill, et al.. (2016). Syringe test screening of microbial gas production activity: Cases denitrification and biogas formation. Journal of Microbiological Methods. 132. 119–124. 8 indexed citations

Bakke, Rune, et al.. (2015). Microbial community dynamics and biogas production from manure fractions in sludge bed anaerobic digestion. Journal of Applied Microbiology. 119(6). 1573–1583. 5 indexed citations

Einbu, Aslak, et al.. (2013). Biological N Removal from Wastes Generated from Amine-Based CO2 Capture: Case Monoethanolamine. Applied Biochemistry and Biotechnology. 169(4). 1449–1458. 11 indexed citations

Einbu, Aslak, et al.. (2012). Biodegradation of amine waste generated from post-combustion CO2 capture in a moving bed biofilm treatment system. Biotechnology Letters. 35(2). 219–224. 12 indexed citations

10.

Strand, Sabina P., et al.. (2002). Efficiency of chitosans applied for flocculation of different bacteria. Water Research. 36(19). 4745–4752. 68 indexed citations

11.

Østgaard, Kjetill, et al.. (2002). Adhesion of the marine bacterium Pseudomonas sp. NCIMB 2021 to different hydrogel surfaces. Water Research. 37(3). 519–524. 42 indexed citations

12.

Strand, Sabina P., Kjell M. Vårum, & Kjetill Østgaard. (2002). Interactions between chitosans and bacterial suspensions: adsorption and flocculation. Colloids and Surfaces B Biointerfaces. 27(1). 71–81. 116 indexed citations

13.

Vogelsang, Christian, Andreas Schramm, Cristian Picioreanu, Mark C.M. van Loosdrecht, & Kjetill Østgaard. (2002). Microbial community analysis by FISH for mathematical modelling of selective enrichment of gel-entrapped nitrifiers obtained from domestic wastewater. Hydrobiologia. 469(1-3). 165–178. 9 indexed citations

14.

Vogelsang, Christian, et al.. (1999). Effect of preservation techniques on the regeneration of gel entrapped nitrifying sludge. Water Research. 33(1). 164–168. 24 indexed citations

15.

Otterlei, Marit, Kjetill Østgaard, Gudmund Skjåk‐Bræk, et al.. (1991). Induction of Cytokine Production from Human Monocytes Stimulated with Alginate. Journal of Immunotherapy. 10(4). 286–291. 290 indexed citations

16.

Draget, Kurt I., et al.. (1988). Plant Protoplasts Immobilized in Calcium Alginate: A Simple Method of Preparing Fragile Cells for Transmission Electron Microscopy. Stain Technology. 63(3). 159–164. 8 indexed citations

17.

Hanssen, Jon Fredrik, et al.. (1987). Anaerobic digestion of Laminaria spp. and Ascophyllum nodosum and application of end products. Biomass. 14(1). 1–13. 66 indexed citations

18.

Østgaard, Kjetill, et al.. (1987). Microcomputer-assisted systems for recording and control of growing phytoplankton cultures. Journal of Plankton Research. 9(6). 1075–1092. 6 indexed citations

19.

Østgaard, Kjetill & Arne Jensen. (1985). Acute phytotoxicity of oil-based drilling muds. 2(4). 281–291. 3 indexed citations

20.

Østgaard, Kjetill, et al.. (1981). Effects of steroids and different culture media on cell cycle of the androgen-sensitive human cell line NHIK3025. Journal of Cell Science. 48(1). 281–290. 5 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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