Trichodesmium

Picoplankton 0.2 to 2.0jjum Proteobacteria Cyanobacteria Pelagibacter, Roseobacter Prochlorococcus, Synechocco-cus, Trichodesmium... 

Phytoplankton Na fixers 0.5-2.0 Trichodesmium and Na-fixing unicellular prokaryotes Na fixers can relieve N limitation if sufficient Fe is present, making primary production essentially P limited ... 

Lipophilic Hydrophilic Lipophilic Hydrophilic Trichodesmium Trichodesmium Mnemiopsis Mnemiopsis sp sp macrydi macrydi... 

Carpenter, E.J. and Romans, K., Major role of the cyanobacterium Trichodesmium in the nutrient cycling in the North Atlantic Ocean, Science, 254, 1356, 1991. 

Carpenter, E.J. and Roenneberg, T., The marine planktonic cyanobacteria Trichodesmium spp. photosynthetic rate measurements in the SW Atlantic Ocean, Mar. Ecol. Prog. Ser., 118, 267, 1995. 

O Neil, J.M. and Roman, M.R., Grazers and associated organisms of Trichodesmium, in Marine Pelagic Cyanobacteria Trichodesmium and other Diazotrophs, Carpenter, E.J., Ed., Kluwer Academic Press, Netherlands, 1992, 61. 

Roman, M.R., Ingestion of blue-green algae Trichodesmium by the harpacticoid copepod, Macrosetella gracilis, Limnol. Oceanogr., 23, 1245, 1978. 

McCarthy, JJ. and Carpenter, E.J., Osciallatoria (Trichodesmium) theubautii (Ctanophyta) in the central North Atlantic Ocean, J. Phycol., 15, 75, 1979. 

Subramaniam, A., Carpenter, E. J., Karentz, D., and Falkowski, P. G., Bio-optical properties of the marine diazotrophic cyanobacteria Trichodesmium spp. I. Absorption and photosynthetic spectra, Limnol. Oceanogr., 44, 608, 1999. 

Carpenter, E. J., and K. Romans. 1991. "Major role of cyanobacterium Trichodesmium in nutrient cycling in the North Atlantic Ocean." Science 254 1356-1358. 

N2-fixation Cyanobacteria, etc. (e.g., Trichodesmium) Aerob Photo-autotrophic Source ofN 4... 

In the Indian Ocean, near surface values of N are sHghdy elevated (Gruber and Samfrento, 1997). As these elevated values are located just above some of the lowest A/ values found anywhere in the world oceans, they suggest rather strong N2 fixation. Observations of Trichodesmium abundance (Carpenter, 1983) and a few direct rate measurements (reported in Capone et al. (1997)) support this conclusion. The low A/ concentrations in the thermocHne of the Arabian Sea (Fig. 1.12)... 

Capone, D. G., Bums, J. A., Montoya, J. P., Subramaniam, A., Mahaffey, C., Gunderson, T., Michaels, A. F., and Carpenter, E. J. (2005). Nitrogen fixation by trichodesmium spp. An important source of new nitrogen to the tropical and subtropical North Atlantic Ocean. Global Biogeochem. Cycles 19, GB2024, doi 10.1029/2004GB002331. 

Davis, C. C., and McGiUicuddy, D. J. (2006). Transadantic abundance of the N2 fixing colonial cyanobacterium Trichodesmium. Science 312, 1517-1520. 

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