Distribution and activity of diazotrophs in the Eastern Equatorial Atlantic, Foster, R. A.; Subramaniam, A.; Zehr, J. P. , Environmental Microbiology, Apr, Volume 11, Issue 4, p.741-750, (2009), DOI 10.1111/j.1462-2920.2008.01796.x Abstract

Distribution and activity of diazotrophy in the Eastern Equatorial Atlantic (Gulf of Guinea), Foster, R A; Subramaniam, A; Zehr, Z P , Environmental Microbiology, Volume 11, Issue 4, p.741-750, (2009)

Influence of the Amazon River plume on distributions of free-living and symbiotic cyanobacteria in the western tropical north Atlantic Ocean, Foster, R. A.; Subramaniam, A.; Mahaffey, C.; Carpenter, E. J.; Capone, D. G.; Zehr, J. P. , Limnology and Oceanography, Mar, Volume 52, Issue 2, p.517-532, (2007) Abstract

Nitrogen fixation by unicellular diazotrophic cyanobacteria in the temperate oligotrophic North Pacific Ocean, Needoba, J. A.; Foster, R. A.; Sakamoto, C.; Zehr, J. P.; Johnson, K. S. , Limnology and Oceanography, Jul, Volume 52, Issue 4, p.1317-1327, (2007) Abstract