Kaarina Sivonen

27.0k total citations · 2 hit papers
293 papers, 18.1k citations indexed

About

Kaarina Sivonen is a scholar working on Environmental Chemistry, Oceanography and Ecology. According to data from OpenAlex, Kaarina Sivonen has authored 293 papers receiving a total of 18.1k indexed citations (citations by other indexed papers that have themselves been cited), including 159 papers in Environmental Chemistry, 86 papers in Oceanography and 85 papers in Ecology. Recurrent topics in Kaarina Sivonen's work include Aquatic Ecosystems and Phytoplankton Dynamics (150 papers), Marine and coastal ecosystems (85 papers) and Microbial Community Ecology and Physiology (73 papers). Kaarina Sivonen is often cited by papers focused on Aquatic Ecosystems and Phytoplankton Dynamics (150 papers), Marine and coastal ecosystems (85 papers) and Microbial Community Ecology and Physiology (73 papers). Kaarina Sivonen collaborates with scholars based in Finland, United States and Germany. Kaarina Sivonen's co-authors include David P. Fewer, Leo Rouhiainen, Jouni Jokela, Jarkko Rapala, Seppo I. Niemelä, Christina Lyra, Matti Wahlsten, Michio Namikoshi, Wayne W. Carmichael and Muriel Gugger and has published in prestigious journals such as New England Journal of Medicine, Proceedings of the National Academy of Sciences and The Lancet.

In The Last Decade

Kaarina Sivonen

291 papers receiving 16.8k citations

Hit Papers

align trajectories sort by overperformance

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Haemophilus influenzae Type b Capsular Polysaccharide Vaccine in Children: A Double-Blind Field Study of 100,000 Vaccinees 3 Months to 5 Years of Age in Finland

1977 387 citations Kaarina Sivonen et al. profile →
CyanoMetDB, a comprehensive public database of secondary metabolites from cyanobacteria

2021 222 citations Kaarina Sivonen, David P. Fewer et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Kaarina Sivonen Finland	73	10.5k	6.9k	5.6k	4.3k	3.3k	293	18.1k
Ken‐ichi Harada Japan	54	5.7k 0.5×	3.3k 0.5×	1.8k 0.3×	2.3k 0.5×	1.9k 0.6×	227	9.5k
William B. Whitman United States	68	3.5k 0.3×	1.4k 0.2×	12.2k 2.2×	670 0.2×	15.5k 4.7×	285	26.1k
Tanja Woyke United States	74	2.2k 0.2×	1.1k 0.2×	10.5k 1.9×	581 0.1×	11.6k 3.5×	384	21.3k
Francisco Rodríguez‐Valera Spain	69	2.2k 0.2×	1.5k 0.2×	11.1k 2.0×	332 0.1×	11.3k 3.4×	252	17.7k
Huub J. M. Op den Camp Netherlands	70	4.8k 0.5×	967 0.1×	7.1k 1.3×	379 0.1×	5.7k 1.7×	311	20.0k
Koki Horikoshi Japan	75	5.0k 0.5×	1.5k 0.2×	8.5k 1.5×	572 0.1×	11.7k 3.6×	582	22.2k
Jussi Meriluoto Finland	56	6.2k 0.6×	3.9k 0.6×	1.9k 0.3×	2.0k 0.5×	1.5k 0.4×	173	9.4k
Rolf Daniel Germany	66	1.2k 0.1×	742 0.1×	6.0k 1.1×	669 0.2×	8.5k 2.6×	444	16.8k
Martin Welker Germany	41	2.3k 0.2×	1.3k 0.2×	1.1k 0.2×	880 0.2×	1.1k 0.3×	84	5.6k
Michael Herdman United Kingdom	27	2.5k 0.2×	1.3k 0.2×	2.4k 0.4×	2.3k 0.5×	4.0k 1.2×	60	8.9k

Countries citing papers authored by Kaarina Sivonen

Since Specialization

Citations

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

Fields of papers citing papers by Kaarina Sivonen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kaarina Sivonen

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

Woodhouse, Jason, Michele A. Burford, Brett A. Neilan, et al.. (2024). Long-term stability of the genome structure of the cyanobacterium, Dolichospermum in a deep German lake. Harmful Algae. 133. 102600–102600. 1 indexed citations

Wahlsten, Matti, et al.. (2023). Morphological and Molecular Evaluation of Pseudanabaena epilithica sp. nov. and P. suomiensis sp. nov. (Pseudanabaenaceae, Cyanobacteria) from Finland. Diversity. 15(8). 909–909. 3 indexed citations

Jokela, Jouni, Matti Wahlsten, Kumar Saurav, et al.. (2022). Discovery of varlaxins, new aeruginosin-type inhibitors of human trypsins. Organic & Biomolecular Chemistry. 20(13). 2681–2692. 16 indexed citations

Wahlsten, Matti, Jouni Jokela, Matthias Nees, et al.. (2021). Potent Inhibitor of Human Trypsins from the Aeruginosin Family of Natural Products. ACS Chemical Biology. 16(11). 2537–2546. 17 indexed citations

Morita, Maho, Yue Hao, Jouni Jokela, et al.. (2018). Post-Translational Tyrosine Geranylation in Cyanobactin Biosynthesis. Journal of the American Chemical Society. 140(19). 6044–6048. 39 indexed citations

Jokela, Jouni, Liwei Liu, Matti Wahlsten, et al.. (2017). The Swinholide Biosynthesis Gene Cluster from a Terrestrial Cyanobacterium, Nostoc sp. Strain UHCC 0450. Applied and Environmental Microbiology. 84(3). 22 indexed citations

Jokela, Jouni, Tânia Keiko Shishido, Matti Wahlsten, et al.. (2017). Production of High Amounts of Hepatotoxin Nodularin and New Protease Inhibitors Pseudospumigins by the Brazilian Benthic Nostoc sp. CENA543. Frontiers in Microbiology. 8. 1963–1963. 32 indexed citations

Leikoski, Niina, Liwei Liu, Jouni Jokela, et al.. (2013). Genome Mining Expands the Chemical Diversity of the Cyanobactin Family to Include Highly Modified Linear Peptides. Chemistry & Biology. 20(8). 1033–1043. 93 indexed citations

Kiviranta, J., et al.. (2012). Mouse oral toxicity of the cyanobacterium nodularia spumigena, and inhibition of hepatotoxicity by hydrocortisone. STM:n Hallinnonalan avoin julkaisuarkisto (Julkari). 1 indexed citations

10.

Jokela, Jouni, Lars Herfindal, Perttu Permi, et al.. (2012). Anabaenolysins, Novel Cytolytic Lipopeptides from Benthic Anabaena Cyanobacteria. PLoS ONE. 7(7). e41222–e41222. 36 indexed citations

11.

Fewer, David P., Leo Rouhiainen, Jouni Jokela, et al.. (2007). Recurrent adenylation domain replacement in the microcystin synthetase gene cluster. BMC Evolutionary Biology. 7(1). 183–183. 105 indexed citations

12.

Reinikainen, Marko, Jussi Meriluoto, Sari Repka, et al.. (2002). Effects of dissolved cyanobacterial toxins on the survival and egg hatching of estuarine calanoid copepods. Marine Biology. 140(3). 577–583. 58 indexed citations

13.

Castiglioni, Bianca, Ermanno Rizzi, Stefano Ventura, et al.. (2002). Application of an universal DNA microarray to cyanobacterial diversity assessment. Open Repository and Bibliography (University of Liège). 14. 253–257. 6 indexed citations

14.

Tarczyńska, M., et al.. (2000). The first report about the presence of cyanobacterial toxins in Polish lakes.. Polish Journal of Environmental Studies. 9(3). 171–178. 18 indexed citations

15.

Pelander, Anna, Kaarina Sivonen, Ilkka Ojanperä, & Heikki Vuorela. (1997). Retardation behavior of cyanobacterial hepatotoxins in the irregular part of the 'PRISMA' model for thin layer chromatography. 10(6). 434–440. 4 indexed citations

16.

Namikoshi, Michio, et al.. (1992). Isolation and structures of microcystins from a cyanobacterial water bloom (Finland). Toxicon. 30(11). 1473–1479. 33 indexed citations

17.

Sivonen, Kaarina, et al.. (1990). Rapid purification of the peptide toxins microcystin-LR and nodularin. FEMS Microbiology Letters. 68(1-2). 1–5. 24 indexed citations

18.

Sivonen, Kaarina, et al.. (1990). Toxic cyanobacteria (blue-green algae) in Finnish fresh and coastal waters. Hydrobiologia. 190(3). 267–275. 224 indexed citations

19.

Himberg, Kimmo, et al.. (1989). THE EFFECT OF WATER-TREATMENT PROCESSES ON THE REMOVAL OF HEPATOTOXINS FROM MICROCYSTIS AND OSCILLATORIA CYANOBACTERIA - A LABORATORY STUDY. Water Resources Research. 23. 979–984. 6 indexed citations

20.

Förström, L, Mustakallio Kk, Kaarina Sivonen, & M Kousa. (1972). Cutaneous lesions associated with benign gonococcaemia.. PubMed. 4(1). 49–54. 1 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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