Karl Safi

4.2k total citations
70 papers, 1.6k citations indexed

About

Karl Safi is a scholar working on Oceanography, Ecology and Global and Planetary Change. According to data from OpenAlex, Karl Safi has authored 70 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 61 papers in Oceanography, 41 papers in Ecology and 17 papers in Global and Planetary Change. Recurrent topics in Karl Safi's work include Marine and coastal ecosystems (56 papers), Marine Biology and Ecology Research (33 papers) and Microbial Community Ecology and Physiology (21 papers). Karl Safi is often cited by papers focused on Marine and coastal ecosystems (56 papers), Marine Biology and Ecology Research (33 papers) and Microbial Community Ecology and Physiology (21 papers). Karl Safi collaborates with scholars based in New Zealand, United States and Australia. Karl Safi's co-authors include Julie Hall, Philip W. Boyd, Scott D. Nodder, Cliff S. Law, María T. Maldonado, Mark Gall, Anya M. Waite, W. N. Vant, Robert F. Strzepek and Andrew Marriner and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Nature Communications and Environmental Science & Technology.

In The Last Decade

Karl Safi

66 papers receiving 1.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Karl Safi New Zealand 23 1.2k 833 334 252 202 70 1.6k
Helga do Rosário Gomes United States 22 1.7k 1.4× 836 1.0× 533 1.6× 303 1.2× 333 1.6× 54 2.1k
K. Gundersen United States 15 1.8k 1.5× 883 1.1× 513 1.5× 167 0.7× 337 1.7× 35 2.1k
Stefano Cozzi Italy 19 914 0.8× 527 0.6× 355 1.1× 341 1.4× 229 1.1× 41 1.5k
Olga Mangoni Italy 26 1.2k 1.0× 721 0.9× 377 1.1× 256 1.0× 207 1.0× 73 1.7k
Christian Lønborg Denmark 25 1.2k 1.0× 925 1.1× 301 0.9× 116 0.5× 255 1.3× 57 1.6k
Eckart Zöllner Germany 13 1.3k 1.1× 666 0.8× 404 1.2× 211 0.8× 328 1.6× 15 1.7k
Qinsheng Wei China 21 1.3k 1.1× 475 0.6× 340 1.0× 279 1.1× 239 1.2× 68 1.6k
Michael Meyerhöfer Germany 14 1.5k 1.3× 536 0.6× 362 1.1× 181 0.7× 362 1.8× 18 1.8k
Tawnya D. Peterson United States 21 865 0.7× 505 0.6× 290 0.9× 158 0.6× 279 1.4× 50 1.4k
HW Paerl United States 14 1.0k 0.9× 998 1.2× 320 1.0× 162 0.6× 307 1.5× 19 1.5k

Countries citing papers authored by Karl Safi

Since Specialization
Citations

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

Fields of papers citing papers by Karl Safi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Karl Safi

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

All Works

20 of 20 papers shown
1.
Peltola, Maija, Neil Barr, Karl Safi, et al.. (2025). Relating Dimethyl Sulphide and Methanethiol Fluxes to Surface Biota in the South‐West Pacific Using Shipboard Air‐Sea Interface Tanks. Journal of Geophysical Research Atmospheres. 130(1). 4 indexed citations
2.
Stirling, Claudine, Niklas J. Lehto, Malcolm Reid, et al.. (2025). Trace metals in natural lakes: seasonal variation of manganese, cobalt, nickel, copper and zinc speciation in lakes of different trophic states. Biogeochemistry. 168(2). 3 indexed citations
3.
4.
Gibbs, Max M., et al.. (2023). Factors influencing summer phytoplankton biomass in a large river system with impoundments: retention time, zooplankton grazing, thermal stratification and internal seiching in a hydro lake. New Zealand Journal of Marine and Freshwater Research. 58(2). 195–218. 1 indexed citations
5.
Sellegri, Karine, Jonathan V. Trueblood, Evelyn Freney, et al.. (2023). Quantified effect of seawater biogeochemistry on the temperature dependence of sea spray aerosol fluxes. Atmospheric chemistry and physics. 23(20). 12949–12964. 3 indexed citations
6.
Décima, Moira, Michael R. Stukel, Scott D. Nodder, et al.. (2023). Salp blooms drive strong increases in passive carbon export in the Southern Ocean. Nature Communications. 14(1). 425–425. 32 indexed citations
7.
Gutiérrez‐Rodríguez, Andres, Mikel Latasa, Karl Safi, Matthew H. Pinkerton, & Scott D. Nodder. (2023). Decoupled growth and grazing rates of diatoms and green algae drive increased phytoplankton productivity on HNLC sub‐Antarctic plateaux. Limnology and Oceanography Letters. 8(6). 896–905. 3 indexed citations
8.
Chiswell, Stephen M., Andres Gutiérrez‐Rodríguez, Mark Gall, et al.. (2022). Seasonal cycles of phytoplankton and net primary production from Biogeochemical Argo float data in the south-west Pacific Ocean. Deep Sea Research Part I Oceanographic Research Papers. 187. 103834–103834. 8 indexed citations
9.
Monferrer, Natalia Llopis, Aude Leynaert, Paul Tréguer, et al.. (2021). Role of small Rhizaria and diatoms in the pelagic silica production of the Southern Ocean. Limnology and Oceanography. 66(6). 2187–2202. 11 indexed citations
10.
Barr, Neill, Evelyn Armstrong, Karl Safi, et al.. (2021). The Influence of Ocean Acidification and Warming on DMSP & DMS in New Zealand Coastal Water. Atmosphere. 12(2). 181–181. 6 indexed citations
11.
Cravigan, Luke T., Marc Mallet, P. Vaattovaara, et al.. (2020). Sea spray aerosol organic enrichment, water uptake and surface tension effects. Atmospheric chemistry and physics. 20(13). 7955–7977. 49 indexed citations
12.
Law, Cliff S., M. J. Smith, Mike Harvey, et al.. (2017). Overview and preliminary results of the Surface Ocean Aerosol Production (SOAP) campaign. Atmospheric chemistry and physics. 17(22). 13645–13667. 28 indexed citations
13.
Hall, Julie, Karl Safi, M. R. James, John Zeldis, & Mark A. Weatherhead. (2006). Microbial assemblage during the spring‐summer transition on the northeast continental shelf of New Zealand. New Zealand Journal of Marine and Freshwater Research. 40(1). 195–210. 11 indexed citations
14.
Hall, Julie, et al.. (2004). Role of microzooplankton grazers in the subtropical and subantarctic waters to the east of New Zealand. New Zealand Journal of Marine and Freshwater Research. 38(1). 91–101. 30 indexed citations
15.
Safi, Karl & Max M. Gibbs. (2003). Importance of different size classes of phytoplankton in Beatrix Bay, Marlborough Sounds, New Zealand, and the potential implications for the aquaculture of the mussel, Perna canaliculus. New Zealand Journal of Marine and Freshwater Research. 37(2). 267–272. 30 indexed citations
16.
Cahoon, LB & Karl Safi. (2002). Distribution and biomass of benthic microalgae in Manukau Harbour, New Zealand. New Zealand Journal of Marine and Freshwater Research. 36(2). 257–266. 37 indexed citations
17.
Burns, N. M., John Deely, Julie Hall, & Karl Safi. (1997). Comparing past and present trophic states of seven Central Volcanic Plateau lakes, New Zealand. New Zealand Journal of Marine and Freshwater Research. 31(1). 71–87. 19 indexed citations
18.
Safi, Karl & Julie Hall. (1997). Factors influencing autotrophic and heterotrophic nanoflagellate abundance in five water masses surrounding New Zealand. New Zealand Journal of Marine and Freshwater Research. 31(1). 51–60. 29 indexed citations
19.
Vant, W. N. & Karl Safi. (1996). Size‐fractionated phytoplankton biomass and photosynthesis in Manukau Harbour, New Zealand. New Zealand Journal of Marine and Freshwater Research. 30(1). 115–125. 15 indexed citations
20.
Gallegos, Charles L., W. N. Vant, & Karl Safi. (1996). Microzooplankton grazing of phytoplankton in Manukau Harbour, New Zealand. New Zealand Journal of Marine and Freshwater Research. 30(4). 423–434. 40 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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2026