J. C. Marr

809 total citations
11 papers, 659 citations indexed

About

J. C. Marr is a scholar working on Environmental Chemistry, Oceanography and Molecular Biology. According to data from OpenAlex, J. C. Marr has authored 11 papers receiving a total of 659 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Environmental Chemistry, 4 papers in Oceanography and 3 papers in Molecular Biology. Recurrent topics in J. C. Marr's work include Marine Toxins and Detection Methods (9 papers), Marine and coastal ecosystems (4 papers) and Nicotinic Acetylcholine Receptors Study (3 papers). J. C. Marr is often cited by papers focused on Marine Toxins and Detection Methods (9 papers), Marine and coastal ecosystems (4 papers) and Nicotinic Acetylcholine Receptors Study (3 papers). J. C. Marr collaborates with scholars based in Canada and United States. J. C. Marr's co-authors include Michael A. Quilliam, Stephen Pleasance, Jeffrey L. C. Wright, J. L. McLachlan, Tingmo Hu, John A. Walter, Anne Jackson, Arlan Silva Freitas, Allan Cembella and Eugene R. Nixon and has published in prestigious journals such as Biochemical and Biophysical Research Communications, Journal of Natural Products and Toxicon.

In The Last Decade

J. C. Marr

11 papers receiving 600 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. C. Marr Canada	11	498	217	193	151	83	11	659
John C. Wekell United States	16	464 0.9×	283 1.3×	337 1.7×	202 1.3×	99 1.2×	25	1.1k
Yoshio Onoue Japan	17	589 1.2×	232 1.1×	225 1.2×	108 0.7×	108 1.3×	33	729
Manabu Asakawa Japan	18	485 1.0×	257 1.2×	195 1.0×	176 1.2×	80 1.0×	39	701
Hudson R. Granade United States	16	854 1.7×	436 2.0×	208 1.1×	97 0.6×	83 1.0×	20	992
Sammy M. Ray United States	13	375 0.8×	245 1.1×	149 0.8×	202 1.3×	113 1.4×	20	930
Yahia Mahmud Bangladesh	15	490 1.0×	240 1.1×	97 0.5×	93 0.6×	79 1.0×	45	688
Peter Hovgaard Norway	11	764 1.5×	315 1.5×	381 2.0×	216 1.4×	112 1.3×	13	901
Hajime Uchida Japan	21	591 1.2×	338 1.6×	289 1.5×	169 1.1×	96 1.2×	90	1.0k
José M. Franco Spain	16	994 2.0×	459 2.1×	549 2.8×	231 1.5×	150 1.8×	26	1.2k
Edward L.E. Jester United States	17	711 1.4×	433 2.0×	209 1.1×	102 0.7×	85 1.0×	27	1.0k

Countries citing papers authored by J. C. Marr

Since Specialization

Citations

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

Fields of papers citing papers by J. C. Marr

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. C. Marr. 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 J. C. Marr. The network helps show where J. C. Marr may publish in the future.

Co-authorship network of co-authors of J. C. Marr

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

All Works

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11 of 11 papers shown

Marr, J. C., et al.. (1997). A Simple High Performance Liquid Chromatography/Ionspray Tandem Mass Spectrometry Method for the Direct Determination of Paraquat and Diquat in Water. Rapid Communications in Mass Spectrometry. 11(5). 479–483. 48 indexed citations

Marr, J. C., et al.. (1994). Investigation of derivatization reagents for the analysis of diarrhetic shellfish poisoning toxins by liquid chromatography with fluorescence detection. Natural Toxins. 2(5). 302–311. 28 indexed citations

McLachlan, J. L., et al.. (1994). Effects of nitrogen concentration and cold temperature on DSP‐toxin concentrations in the dinoflagellateProrocentrum lima(prorocentrales, dinophyceae). Natural Toxins. 2(5). 263–270. 50 indexed citations

Shestowsky, William S., Charles F.B. Holmes, Teh‐Min Hu, et al.. (1993). An Anti-okadaic Acid-Anti-idiotypic Antibody Bearing An Internal Image of Okadaic Acid Inhibits Protein Phosphatase PP1 and PP2A Catalytic Activity. Biochemical and Biophysical Research Communications. 192(1). 302–310. 13 indexed citations

Pleasance, Stephen, Michael A. Quilliam, & J. C. Marr. (1992). Ionspray mass spectrometry of marine toxins. IV. Determination of diarrhetic shellfish poisoning toxins in mussel tissue by liquid chromatography/mass spectrometry. Rapid Communications in Mass Spectrometry. 6(2). 121–127. 34 indexed citations

Marr, J. C., et al.. (1992). Detection of new 7-O-acyl derivatives of diarrhetic shellfish poisoning toxins by liquid chromatography-mass spectrometry. Toxicon. 30(12). 1621–1630. 96 indexed citations

Hu, Tingmo, J. C. Marr, Michael A. Quilliam, et al.. (1992). New Diol Esters Isolated from Cultures of the Dinoflagellates Prorocentrum lima and Prorocentrum concavum. Journal of Natural Products. 55(11). 1631–1637. 96 indexed citations

Marr, J. C., Anne Jackson, & J. L. McLachlan. (1992). Occurrence of Prorocentrum lima, a DSP toxin-producing species from the Atlantic coast of Canada. Journal of Applied Phycology. 4(1). 17–24. 66 indexed citations

Hu, Tingmo, Jacqueline Doyle, David Jackson, et al.. (1992). Isolation of a new diarrhetic shellfish poison from Irish mussels. Journal of the Chemical Society Chemical Communications. 39–39. 96 indexed citations

10.

Pleasance, Stephen, Michael A. Quilliam, Arlan Silva Freitas, J. C. Marr, & Allan Cembella. (1990). Ion‐spray mass spectrometry of marine toxins II. Analysis of diarrhetic shellfish toxins in plankton by liquid chromatography/mass spectrometry. Rapid Communications in Mass Spectrometry. 4(6). 206–213. 63 indexed citations

11.

Marr, J. C.. (1956). The "Critical Period" in the Early Life History of Marine Fishes. ICES Journal of Marine Science. 21(2). 160–170. 69 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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