Cornelius Hammer

1.4k total citations
44 papers, 1.1k citations indexed

About

Cornelius Hammer is a scholar working on Global and Planetary Change, Nature and Landscape Conservation and Aquatic Science. According to data from OpenAlex, Cornelius Hammer has authored 44 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Global and Planetary Change, 23 papers in Nature and Landscape Conservation and 13 papers in Aquatic Science. Recurrent topics in Cornelius Hammer's work include Marine and fisheries research (34 papers), Fish Ecology and Management Studies (21 papers) and Marine Bivalve and Aquaculture Studies (13 papers). Cornelius Hammer is often cited by papers focused on Marine and fisheries research (34 papers), Fish Ecology and Management Studies (21 papers) and Marine Bivalve and Aquaculture Studies (13 papers). Cornelius Hammer collaborates with scholars based in Germany, Norway and France. Cornelius Hammer's co-authors include Christopher Zimmermann, Patrick Polte, Paul Kotterba, Harry V. Strehlow, Irfan Yulianto, Daniel Stepputtis, Odd Aksel Bergstad, Tomas Gröhsler, John Gordon and Pascal Lorance and has published in prestigious journals such as PLoS ONE, Limnology and Oceanography and Ecological Modelling.

In The Last Decade

Cornelius Hammer

40 papers receiving 1.0k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Cornelius Hammer 696 581 521 287 90 44 1.1k
Norman G. Hall 1.0k 1.5× 1.3k 2.2× 695 1.3× 610 2.1× 108 1.2× 77 1.7k
George Katselis 267 0.4× 600 1.0× 481 0.9× 329 1.1× 98 1.1× 57 998
G. A. Chouinard 675 1.0× 989 1.7× 540 1.0× 247 0.9× 56 0.6× 19 1.2k
E. J. Dick 568 0.8× 729 1.3× 366 0.7× 143 0.5× 58 0.6× 26 926
Douglas S. Vaughan 511 0.7× 577 1.0× 311 0.6× 175 0.6× 75 0.8× 46 891
Mário Pinho 396 0.6× 567 1.0× 404 0.8× 224 0.8× 82 0.9× 52 848
Argyris Kallianiotis 254 0.4× 685 1.2× 460 0.9× 277 1.0× 159 1.8× 36 921
J. Stevenson Macdonald 653 0.9× 396 0.7× 752 1.4× 280 1.0× 61 0.7× 24 1.2k
Elaine M. Caldarone 415 0.6× 487 0.8× 306 0.6× 403 1.4× 132 1.5× 19 927
Jun Shoji 425 0.6× 758 1.3× 452 0.9× 269 0.9× 314 3.5× 92 1.3k

Countries citing papers authored by Cornelius Hammer

Since Specialization
Citations

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

Fields of papers citing papers by Cornelius Hammer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Cornelius Hammer

This figure shows the co-authorship network connecting the top 25 collaborators of Cornelius Hammer. A scholar is included among the top collaborators of Cornelius Hammer 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 Cornelius Hammer. Cornelius Hammer 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.
Stepputtis, Daniel, et al.. (2021). Estimating abundances of 0-group western Baltic cod\nby using pound net fisheries. AquaDocs (United Nations Educational, Scientific and Cultural Organization). 1 indexed citations
2.
Hammer, Cornelius. (2021). Beurteilung der Fischbestände in Nordatlantik, Nord- und Ostsee. Einschätzung durch den Internationalen Rat für Meeresforschung vom Mai 1999. AquaDocs (United Nations Educational, Scientific and Cultural Organization).
3.
Dodson, Julian J., Gaétan Daigle, Cornelius Hammer, et al.. (2018). Environmental determinants of larval herring (Clupea harengus) abundance and distribution in the western Baltic Sea. Limnology and Oceanography. 64(1). 317–329. 19 indexed citations
4.
Yulianto, Irfan, Hollie Booth, Tasrif Kartawijaya, et al.. (2018). Practical measures for sustainable shark fisheries: Lessons learned from an Indonesian targeted shark fishery. PLoS ONE. 13(11). e0206437–e0206437. 38 indexed citations
5.
Yulianto, Irfan, Cornelius Hammer, Budy Wiryawan, & Harry W. Palm. (2015). Fishing-induced groupers stock dynamics in Karimunjawa National Park, Indonesia. Fisheries Science. 81(3). 417–432. 15 indexed citations
6.
Gräwe, Ulf, et al.. (2013). Identifying the location and importance of spawning sites of Western Baltic herring using a particle backtracking model. ICES Journal of Marine Science. 71(3). 499–509. 17 indexed citations
7.
Oeberst, Rainer, et al.. (2013). Evaluation of otolith shape analysis as a tool for discriminating adults of Baltic cod stocks. Journal of Applied Ichthyology. 29(4). 743–750. 31 indexed citations
8.
Dorrien, Christian von, Cornelius Hammer, Christopher Zimmermann, et al.. (2013). A Review on Herring, <I>Clupea Harengus</I> (Actinopterygii: Clupeiformes: Clupeidae) Recruitment and Early Life Stage Ecology in the Western Baltic Sea. Acta Ichthyologica Et Piscatoria. 43(3). 169–182. 16 indexed citations
9.
Hammer, Cornelius, et al.. (2012). Otolith microstructure analysis to resolve seasonal patterns of hatching and settlement in western Baltic cod. ICES Journal of Marine Science. 69(8). 1347–1356. 15 indexed citations
10.
Probst, Wolfgang, et al.. (2011). Catch Patterns of the German Baltic Sea Trawl Fleet Targeting Demersal Species Between 2006 and 2009. Acta Ichthyologica Et Piscatoria. 41(4). 315–325. 5 indexed citations
11.
Stepputtis, Daniel, et al.. (2009). Diel differences in catches of Western Baltic Spring Spawning Herring Larvae (Clupea harengus). AquaDocs (United Nations Educational, Scientific and Cultural Organization). 56. 23–34. 1 indexed citations
12.
Gröger, Joachim Paul, et al.. (2004). Species and length composition of fish in the south-western Baltic Sea. Journal of Applied Ichthyology. 20(5). 369–375. 3 indexed citations
13.
Frid, C.L.J., Cornelius Hammer, Harald Loeng, et al.. (2003). Environmental status of the european seas. Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea). 17 indexed citations
14.
Hammer, Cornelius, et al.. (2003). The BACOMA cod-end : history and recent developments in BACOMA cod-end regulations and a proposal for a better specification of the BACOMA cod-end for Baltic sea cod fishery. 50(2). 53–61. 2 indexed citations
15.
Hammer, Cornelius & Christopher Zimmermann. (2003). Einfluss der Umsetzung der ICES -Fangempfehlungen auf den Zustand der Fischbestände seit Einführung des Vorsorgeansatzes. OpenAgrar. 50(3). 91–97. 3 indexed citations
16.
Hammer, Cornelius. (2001). Lage und Entwicklung ausgewählter Fischbestände : Einschätzung des ICES im Oktober 2001. AquaDocs (United Nations Educational, Scientific and Cultural Organization). 48(4). 151–162. 1 indexed citations
17.
Zimmermann, Christopher & Cornelius Hammer. (1999). Biologie des Stöckers in Nordsee und Nordostatlantik. AquaDocs (United Nations Educational, Scientific and Cultural Organization). 46(4). 14–23. 1 indexed citations
18.
Hammer, Cornelius, et al.. (1989). Preliminary notes on the formation of daily increments in otoliths of Oreochromis aureus. Journal of Applied Ichthyology. 5(2). 53–60. 5 indexed citations
19.
Hammer, Cornelius, et al.. (1988). Quantification of age pigments (lipofuscin). Comparative Biochemistry and Physiology Part B Comparative Biochemistry. 90(1). 7–17. 40 indexed citations
20.
Hammer, Cornelius. (1988). Accumulation of fluorescent age pigments in embryos and larvae of pike,Esox lucius (Esocidae, Teleostei) at different incubation temperatures. Environmental Biology of Fishes. 22(2). 91–99. 8 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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