Ralph Kuhlenkamp

674 total citations
23 papers, 379 citations indexed

About

Ralph Kuhlenkamp is a scholar working on Oceanography, Ecology and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, Ralph Kuhlenkamp has authored 23 papers receiving a total of 379 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Oceanography, 5 papers in Ecology and 4 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in Ralph Kuhlenkamp's work include Marine and coastal plant biology (12 papers), Marine and coastal ecosystems (7 papers) and Marine Biology and Ecology Research (6 papers). Ralph Kuhlenkamp is often cited by papers focused on Marine and coastal plant biology (12 papers), Marine and coastal ecosystems (7 papers) and Marine Biology and Ecology Research (6 papers). Ralph Kuhlenkamp collaborates with scholars based in Germany, Canada and Australia. Ralph Kuhlenkamp's co-authors include Linda A. Franklin, Gudrun Kräbs, Inka Bartsch, D. Müller, Florence Rousseau, Klaus Lüning, Akira F. Peters, Bruno de Reviers, Robert G. Hooper and Eric C. Henry and has published in prestigious journals such as Chemosphere, Journal of Phycology and Phycologia.

In The Last Decade

Ralph Kuhlenkamp

21 papers receiving 348 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ralph Kuhlenkamp Germany 12 254 130 106 100 63 23 379
Hans Pakker Netherlands 9 410 1.6× 166 1.3× 141 1.3× 108 1.1× 39 0.6× 11 490
Peter Feuerpfeil Germany 6 448 1.8× 218 1.7× 61 0.6× 79 0.8× 67 1.1× 7 510
Miyuki Maegawa Japan 16 477 1.9× 283 2.2× 135 1.3× 94 0.9× 70 1.1× 45 650
Ulrike Lüder Germany 8 423 1.7× 174 1.3× 134 1.3× 137 1.4× 15 0.2× 10 526
Zhiguang Xu China 12 470 1.9× 120 0.9× 45 0.4× 102 1.0× 88 1.4× 29 607
Masakazu Tatewaki Japan 10 468 1.8× 131 1.0× 114 1.1× 124 1.2× 33 0.5× 23 582
Helena Coelho Portugal 10 314 1.2× 154 1.2× 25 0.2× 98 1.0× 52 0.8× 14 427
G. Weykam Germany 9 385 1.5× 181 1.4× 56 0.5× 77 0.8× 26 0.4× 12 433
Yasutsugu Yokohama Japan 16 487 1.9× 224 1.7× 34 0.3× 70 0.7× 89 1.4× 39 580
José Marcos C. Nunes Brazil 8 229 0.9× 155 1.2× 39 0.4× 45 0.5× 50 0.8× 8 329

Countries citing papers authored by Ralph Kuhlenkamp

Since Specialization
Citations

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

Fields of papers citing papers by Ralph Kuhlenkamp

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ralph Kuhlenkamp

This figure shows the co-authorship network connecting the top 25 collaborators of Ralph Kuhlenkamp. A scholar is included among the top collaborators of Ralph Kuhlenkamp 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 Ralph Kuhlenkamp. Ralph Kuhlenkamp 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.
Kuhlenkamp, Ralph, et al.. (2021). Fast isolation of the environmentally relevant halogenated natural product MHC-1 by means of countercurrent chromatography. Chemosphere. 284. 131310–131310. 5 indexed citations
2.
Radashevsky, Vasily I., Tatiana V. Neretina, Robin S. Wilson, et al.. (2019). Molecular analysis and new records of the invasive polychaete Boccardia proboscidea (Annelida: Spionidae). Mediterranean Marine Science. 20(2). 13 indexed citations
3.
Kuhlenkamp, Ralph, et al.. (2016). Discovery of the non-indigenous bryozoan Smittoidea prolifica Osburn, 1952 near Helgoland: first record in 2011 for the German North Sea. Marine Biodiversity. 48(2). 1237–1240. 3 indexed citations
4.
Kuhlenkamp, Ralph, et al.. (2014). Recent observations of the introduced Fenestrulina delicia Winston, Hayward & Craig, 2000 (Bryozoa) in Western Europe. 94. 45–51. 7 indexed citations
5.
Bartsch, Inka, et al.. (2013). Entwicklung des Miesmuschel-/Austernbestandes auf Helgoland. Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut). 1 indexed citations
6.
Bartsch, Inka & Ralph Kuhlenkamp. (2009). Entwicklung der Makrophytenvegetation bei Helgoland vor dem Hintergrund der Wasserrahmenrichtlinie. = Development of macrophyte vegetation off Helgoland against the background of the EU Water Framework Directive. Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut). 161. D1781–D1781.
7.
Bartsch, Inka, et al.. (2005). Macrophyte monitoring by hyperspectral remote sensing and ground based biotope mapping - a tool to assist the monitoring demands of the EU-water frame work directive?. Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut). 2 indexed citations
8.
Altamirano, Marı́a, Antonio Flores‐Moya, Ralph Kuhlenkamp, & Félix L. Figueroa. (2003). Stage-dependent sensitivity to ultraviolet radiation in zygotes of the brown alga Fucus serratus. Zygote. 11(2). 101–106. 16 indexed citations
9.
Rousseau, Florence, et al.. (2001). A comprehensive phylogeny of the Phaeophyceae based on nrDNA sequences resolves the earliest divergences. Comptes Rendus de l Académie des Sciences - Series III - Sciences de la Vie. 324(4). 305–319. 55 indexed citations
10.
Kuhlenkamp, Ralph, Linda A. Franklin, & Klaus Lüning. (2001). Effect of solar ultraviolet radiation on growth in the marine macroalga Dictyota dichotoma (Phaeophyceae) at Helgoland and its ecological consequences. Helgoland Marine Research. 55(1). 77–86. 19 indexed citations
11.
Dring, M. J., et al.. (2001). Seasonal and diurnal variations in UV-B and UV-A irradiances at and below the sea surface at Helgoland (North Sea) over a 6-year period. Smithsonian Digital Repository (Smithsonian Institution). 1 indexed citations
12.
Franklin, Linda A., Gudrun Kräbs, & Ralph Kuhlenkamp. (2001). BLUE LIGHT AND UV‐A RADIATION CONTROL THE SYNTHESIS OF MYCOSPORINE‐LIKE AMINO ACIDS IN CHONDRUS CRISPUS (FLORIDEOPHYCEAE). Journal of Phycology. 37(2). 257–270. 86 indexed citations
13.
Dring, M. J., A. Wagner, Linda A. Franklin, Ralph Kuhlenkamp, & Klaus Lüning. (2001). Seasonal and diurnal variations in ultraviolet-B and ultraviolet-A irradiances at and below the sea surface at Helgoland (North Sea) over a 6-year period. Helgoland Marine Research. 55(1). 3–11. 24 indexed citations
14.
Bartsch, Inka & Ralph Kuhlenkamp. (2000). The marine macroalgae of Helgoland (North Sea): an annotated list of records between 1845 and 1999. Helgoland Marine Research. 54(4). 160–189. 45 indexed citations
15.
16.
17.
Kuhlenkamp, Ralph & D. Müller. (1994). Isolation and Regeneration of Protoplasts from Healthy and Virus-infected Gametophytes of Ectocarpus siliculosus (Phaeophyceae). Botanica Marina. 37(6). 12 indexed citations
18.
Kuhlenkamp, Ralph, Dieter G. Müller, & Alan Whittick. (1993). GENOTYPIC VARIATION AND ALTERNATING DNA LEVELS AT CONSTANT CHROMOSOME NUMBERS IN THE LIFE HISTORY OF THE BROWN ALGA HAPLOSPORA GLOBOSA (TILOPTERIDALES)1. Journal of Phycology. 29(3). 377–380. 9 indexed citations
19.
Hooper, Robert G., Eric C. Henry, & Ralph Kuhlenkamp. (1988). Phaeosiphoniella cryophila gen. et sp. nov., a third member of the Tilopteridales (Phaeophyceae). Phycologia. 27(3). 395–404. 16 indexed citations
20.
Kuhlenkamp, Ralph & D. Müller. (1985). Culture studies on the life history ofHaplospora globosaandTilopteris mertensii(tilopteridales, phaeophyceae). British Phycological Journal. 20(4). 301–312. 26 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Hans Pakker Breakdown of academic impact, for papers by Peter Feuerpfeil Breakdown of academic impact, for papers by Miyuki Maegawa Breakdown of academic impact, for papers by Ulrike Lüder Breakdown of academic impact, for papers by Zhiguang Xu Breakdown of academic impact, for papers by Masakazu Tatewaki Breakdown of academic impact, for papers by Helena Coelho Breakdown of academic impact, for papers by G. Weykam Breakdown of academic impact, for papers by Yasutsugu Yokohama Breakdown of academic impact, for papers by José Marcos C. Nunes
Rankless by CCL
2026