Guy Hällfors
Impact in
- Oceanography top 5%
- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Marine and coastal plant biology
- Environmental Chemistry top 5%
- Aquatic Ecosystems and Phytoplankton Dynamics
Papers in
- Oceanography 14
- Marine and coastal ecosystems 11
- Marine Biology and Ecology Research 4
- Marine and environmental studies 2
- Ecology 12
- Microbial Community Ecology and Physiology 6
- Isotope Analysis in Ecology 2
- Co-authors
- Seija Hällfors (6 shared papers)Antti Penttilä (1 shared paper)Philippe Lunetta (1 shared paper)Pentti Kangas (4 shared papers)Erkki Leppäkoski (1 shared paper)Hans Ackefors (1 shared paper)Harri Kuosa (2 shared papers)Elina Leskinen (4 shared papers)
- Journals
- European Journal of Phycology (1 paper)International Journal of Legal Medicine (1 paper)Oikos (1 paper)Botanica Marina (1 paper)Protist (1 paper)
- Partner nations
- FinlandSwedenSwitzerland
In The Last Decade
Guy Hällfors
24 papers receiving 495 citations
Peers
Comparison fields: 5 of 60
- Oceanography 348
- Environmental Chemistry 131
- Ecology 271
- Biomaterials 60
- Global and Planetary Change 74
Countries citing papers authored by Guy Hällfors
This map shows the geographic impact of Guy Hällfors'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 Guy Hällfors with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Guy Hällfors more than expected).
Fields of papers citing papers by Guy Hällfors
This network shows the impact of papers produced by Guy Hällfors. 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 Guy Hällfors. The network helps show where Guy Hällfors may publish in the future.
Co-authors
The 25 scholars most cited alongside Guy Hällfors, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 24 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | Checklist of Baltic Sea Phytoplankton Species (including some heterotrophic protistan groups) | 2004 | 122 |
| 2 | 1998 | 71 | |
| 3 | 1981 | 52 | |
| 4 | 1988 | 39 | |
| 5 | 1975 | 33 | |
| 6 | 1987 | 32 | |
| 7 | A Chrysochromulina (Haptophyceae) bloom under the ice in the Tvarminne Archipelago, southern coast of Finland | 1974 | 28 |
| 8 | 1995 | 27 | |
| 9 | Chrysophyte or heliozoon: Ultrastructural studies on a cultured species of Pseudopedinella (Pedinellales ord. nov.), with comments on species taxonomy | 1984 | 24 |
| 10 | 2013 | 22 | |
| 11 | 1975 | 20 | |
| 12 | 2003 | 20 | |
| 13 | New observations on the heterotrophic protist genus Thaumatomastix (Thaumatomastigaceae, Protista incerta sedis), with particular emphasis on material from the Baltic Sea | 1993 | 19 |
| 14 | Hydrography, chlorophyll a and nutrients at Tvärminne Storfjärd, Gulf of Finland, in 1979/80 | 1983 | 14 |
| 15 | 2012 | 13 | |
| 16 | 2010 | 13 | |
| 17 | Effect of different fixatives and preservatives on phytoplankton counts | 1979 | 10 |
| 18 | 1991 | 8 | |
| 19 | 1992 | 4 | |
| 20 | 1991 | 3 |
About Guy Hällfors
Guy Hällfors is a scholar working on Oceanography, Ecology, Molecular Biology, Environmental Chemistry and Biomaterials, having authored 24 papers that have together received 581 indexed citations. Recurring topics across this work include Marine and coastal ecosystems (11 papers), Protist diversity and phylogeny (7 papers), Microbial Community Ecology and Physiology (6 papers), Diatoms and Algae Research (4 papers), Marine Biology and Ecology Research (4 papers), Aquatic Ecosystems and Phytoplankton Dynamics (3 papers), Isotope Analysis in Ecology (2 papers) and Marine and environmental studies (2 papers). The work is most often cited by research in Oceanography (348 citations), Environmental Chemistry (131 citations), Ecology (271 citations), Biomaterials (60 citations) and Global and Planetary Change (74 citations). Guy Hällfors has collaborated with scholars based in Finland, Sweden and Switzerland. Frequent co-authors include Seija Hällfors, Antti Penttilä, Philippe Lunetta, Pentti Kangas, Erkki Leppäkoski, Hans Ackefors, Harri Kuosa, Elina Leskinen, Øjvind Moestrup and Visa Nuutinen. Their work appears in journals such as European Journal of Phycology, International Journal of Legal Medicine, Oikos, Botanica Marina and Protist.
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.