DOP Utilization (ATP3, DOP) CTD data
Biogeochemical data collected on transect cruises studying
Dissolved Organic Phosphorus throughout the western Sargasso Sea.
Data are from several cruises over the span 2006 to 2008.

Note the cruise identifiers for the Atlantic Explorer were originally formatted as XYY## (e.g. X0806 was the 6th cruise in 2008). The data files include cruise IDs of this type. The vessel operator changed the cruise ID syntax several years after the cruise and the official cruise ID syntax was changed to AEYY##. For example, AE0810 should be the same cruise as X0810. One exception for this dataset is that X0804 is cruise ID AE0810.

Related files and references:
Detailed information on analyses:
Lomas, M.W., Burke, A., Lomas, D.A., Bell, D.W., Shen, C., Ammerman, J.W., Dyhrman, S.T. 2010.
Sargasso Sea phosphorus biogeochemistry: An important role for dissolved organic phosphorus (DOP).
Biogeosciences 7: 695-710.

Other published work:
Michelou, V.K., Lomas, M.W., Kirchman, D.L. Phosphate and ATP uptake by cyanobacteria and heterotrophic
bacteria in the Sargasso Sea. Limnology and Oceanography, in press.

McLaughlin, K., Sohm, J.A., Cutter, G.A., Lomas, M.W., Paytan, A. 2010. Phosphate cycling in the Sargasso Sea:
Investigation using the oxygen isotopic composition of phosphate, enzyme labeled fluorescence, and turnover times.
Journal of Geophysical Research - Biogeosciences, in press.

Longnecker, K., Lomas, M.W., and Van Mooy, B.A.S. 2010. Characterizing the abundance and diversity of
heterotrophic bacterial cells assimilating phosphate in the sub-tropical North Atlantic Ocean.
Environmental Microbiology, in press.

Orchard, E.D., Ammerman, J.W., Lomas, M.W., Dyhrman, S.T. 2010. Dissolved inorganic and organic phosphorus
uptake in Trichodesmium and the microbial community: The importance of phosphorus ester in the Sargasso Sea.
Limnology and Oceanography, 55:1390-1399.

Casey, J., Lomas, M.W., Michelou, V., Orchard, E.D., Dyhrman, S.T., Ammerman, J.W., and Sylvan, J. 2009.
Phytoplankton taxon-specific orthophosphate (Pi) and ATP uptake in the northwestern Atlantic subtropical gyre.
Aquatic Microbial Ecology, 58:31-44.

Van Mooy, B.A.S., Fredricks, H.F., Pedler, B.F., Dyhrman, S.T., Karl, D.M., Koblizek, M., Lomas, M.W., Moore,
L.R., Moutin, T., Rappé, M.S., and Webb, E.A. 2009. Phytoplankton in the oligotrophic ocean use non-phosphorus
lipids in response to phosphorus scarcity.
Nature Geosciences, doi:10.1038/nature07659.