This map shows the geographic impact of Roger Mann'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 Roger Mann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roger Mann more than expected).
This network shows the impact of papers produced by Roger Mann. 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 Roger Mann. The network helps show where Roger Mann may publish in the future.
Co-authorship network of co-authors of Roger Mann
This figure shows the co-authorship network connecting the top 25 collaborators of Roger Mann.
A scholar is included among the top collaborators of Roger Mann 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 Roger Mann. Roger Mann is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Mann, Roger, et al.. (2004). Site Selection For Oyster Habitat Rehabilitation In The Virginia Portion Of The Chesapeake Bay: A Commentary. Journal of Shellfish Research. 23(1). 41.28 indexed citations
5.
Savini, Dario, et al.. (2002). Rapa Whelk Rapana Venosa (Valenciennes, 1846) Predation Rates On Hard Clams Mercenaria Mercenaria (Linnaeus, 1758). Journal of Shellfish Research. 21(2). 777.24 indexed citations
6.
Harding, Juliana M. & Roger Mann. (2001). Oyster reefs as fish habitat: Opportunistic use of restored reefs by transient fishes. Journal of Shellfish Research. 20(3). 951.89 indexed citations
7.
Mann, Roger. (2000). Restoring The Oyster Reef Communities In The Chesapeake Bay: A Commentary. Journal of Shellfish Research. 19(1). 335.51 indexed citations
8.
Harding, Juliana M. & Roger Mann. (1999). Observations On The Biology Of The Veined Rapa Whelk, Rapana Venosa (Valenciennes, 1846) In The Chesapeake Bay. Journal of Shellfish Research. 18(1). 9.69 indexed citations
9.
Mann, Roger, et al.. (1999). Fish species richness in relation to restored oyster reefs, Piankatank river, Virginia. Bulletin of Marine Science. 65(1). 289–300.48 indexed citations
10.
Bartol, Ian K. & Roger Mann. (1997). Small-scale settlement patterns of the oyster Crassostrea virginica on a constructed intertidal reef. Bulletin of Marine Science. 61(3). 881–897.46 indexed citations
11.
Mann, Roger, et al.. (1994). Reproductive Activity Of Oysters, Crassostrea-Virginica (Gmelin, 1791) In The James River, Virginia, During 1987-1988. Journal of Shellfish Research. 13(1). 157.15 indexed citations
12.
Mann, Roger, et al.. (1990). Effect of decreasing oxygen tension of swimming rate of Crassostrea virginica (Gmelin, 1791) larvae. Journal of Shellfish Research. 9(2). 323.15 indexed citations
13.
Mann, Roger, et al.. (1990). Settlement of oysters, Crassostrea virginica (Gmelin, 1791), on oyster shell, expanded shale and tire chips in the James River, Virginia. Journal of Shellfish Research. 9(1). 173.5 indexed citations
14.
Roegner, G. Curtis & Roger Mann. (1990). Settlement Patterns Of Crassostrea virginica (Gmelin, 1791) Larvae In Relation To Tidal Zonation. Journal of Shellfish Research. 9(2). 341.9 indexed citations
15.
Morales‐Alamo, Reinaldo & Roger Mann. (1989). Anatomical features in histological sections of Crassostrea virginica (Gmelin, 1791) as an aid in management of gonad area for reproductive assessment. Journal of Shellfish Research. 8(1). 71.35 indexed citations
16.
Mann, Roger. (1986). Arctica islandica (Linne) Larvae: Active depth regulators or passive particles?. American Malacological Bulletin. 51.12 indexed citations
17.
Mann, Roger. (1985). Seasonal changes in the depth distribution of bivalve larvae on the Southern New England Shelf. Journal of Shellfish Research. 5(2). 57.19 indexed citations
18.
Mann, Roger, et al.. (1981). A comparison of dredge and patent tongs for estimation of oyster populations. Journal of Shellfish Research. 23(2). 387.29 indexed citations
19.
Mann, Roger. (1979). Exotic species in mariculture : proceedings of a Symposium on Exotic Species in Mariculture : Case Histories of the Japanese oyster, Crassostrea gigas (Thunberg), with implications for other fisheries, held at Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, September 18 to 20, 1978. MIT Press eBooks.3 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.