Per Johannessen
Impact in
- Aquatic Science top 5%
- Aquaculture Nutrition and Growth
- Oceanography top 5%
- Marine Biology and Ecology Research
Papers in
- Ecology 12
- Aquatic Invertebrate Ecology and Behavior 6
- Isotope Analysis in Ecology 3
- Environmental DNA in Biodiversity Studies 3
- Oceanography 11
- Marine Biology and Ecology Research 10
- Marine and coastal ecosystems 2
- Co-authors
- Arne Ervik (6 shared papers)Pia Kupka Hansen (3 shared papers)Jan Aure (5 shared papers)Anders Stigebrandt (2 shared papers)Tore Høisæter (2 shared papers)Tina Kutti (1 shared paper)Vibeke Andersen (1 shared paper)Amund Maage (1 shared paper)
- Journals
- Sarsia (9 papers)Aquaculture (3 papers)Journal of Fish Diseases (1 paper)Marine Biology (1 paper)Bulletin of Environmental Contamination and Toxicology (1 paper)
- Partner nations
- NorwaySwedenUnited Kingdom
In The Last Decade
Per Johannessen
22 papers receiving 500 citations
Peers
Comparison fields: 5 of 57
- Aquatic Science 142
- Oceanography 196
- Global and Planetary Change 326
- Ecology 187
- Nature and Landscape Conservation 77
Countries citing papers authored by Per Johannessen
This map shows the geographic impact of Per Johannessen'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 Per Johannessen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Per Johannessen more than expected).
Fields of papers citing papers by Per Johannessen
This network shows the impact of papers produced by Per Johannessen. 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 Per Johannessen. The network helps show where Per Johannessen may publish in the future.
Co-authors
The 24 scholars most cited alongside Per Johannessen, 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 23 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | 2006 | 105 | |
| 2 | 1997 | 104 | |
| 3 | 2001 | 78 | |
| 4 | 1991 | 49 | |
| 5 | 1994 | 48 | |
| 6 | 1996 | 47 | |
| 7 | 2009 | 47 | |
| 8 | 1995 | 14 | |
| 9 | 1983 | 13 | |
| 10 | Environmental effects of marine Norwegian fish farms | 1985 | 10 |
| 11 | 1986 | 8 | |
| 12 | 2001 | 6 | |
| 13 | 1976 | 3 | |
| 14 | 1976 | 3 | |
| 15 | 1980 | 3 | |
| 16 | 1979 | 2 | |
| 17 | 1981 | 2 | |
| 18 | 1977 | 2 | |
| 19 | 2010 | 2 | |
| 20 | 1978 | 1 |
About Per Johannessen
Per Johannessen is a scholar working on Ecology, Oceanography, Global and Planetary Change, Nature and Landscape Conservation and Pollution, having authored 23 papers that have together received 550 indexed citations. Recurring topics across this work include Marine Biology and Ecology Research (10 papers), Marine and fisheries research (6 papers), Marine Bivalve and Aquaculture Studies (6 papers), Aquatic Invertebrate Ecology and Behavior (6 papers), Isotope Analysis in Ecology (3 papers), Environmental DNA in Biodiversity Studies (3 papers), Marine and coastal ecosystems (2 papers) and Fish Ecology and Management Studies (2 papers). The work is most often cited by research in Aquatic Science (142 citations), Oceanography (196 citations), Global and Planetary Change (326 citations), Ecology (187 citations) and Nature and Landscape Conservation (77 citations). Per Johannessen has collaborated with scholars based in Norway, Sweden and United Kingdom. Frequent co-authors include Arne Ervik, Pia Kupka Hansen, Jan Aure, Anders Stigebrandt, Tore Høisæter, Tina Kutti, Vibeke Andersen, Amund Maage, Thomas G. Dahlgren and Helena Wiklund. Their work appears in journals such as Sarsia, Aquaculture, Journal of Fish Diseases, Marine Biology and Bulletin of Environmental Contamination and Toxicology.
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.