Biomass and primary productivity of the cyanobacterium Trichodesmium spp. in the tropical N Atlantic ocean, Carpenter, E. J.; Subramaniam, A.; Capone, D. G. , Deep-Sea Research Part I-Oceanographic Research Papers, Feb, Volume 51, Issue 2, p.173-203, (2004), DOI 10.1016/j.dsr.2003.10.006 Abstract