Sadly, Nathalie is no longer a member of the lab. :(
Nitrogen and phosphorus cycling in the upper ocean and the
use of natural isotopes of nitrogen and phosphorus in the
1-Residence time of particulate organic matter in the
surface ocean and new production (radiophosphorus
2-Nitrogen stable isotopes distribution in particulate
organic matter in the ocean and its relationship with
3-Mechanism of nitrogen isotope fractionation and its study
in laboratory cultures.
N. A. D. Waser, A. P. Fleer, T. R. Hammar, K. O. Buesseler
and M. P. Bacon. 1994. Determination of natural
33P in rainwater, marine
particles and plankton by low-level beta counting, Nuclear
Instruments and Methods in Physics Research, A
N. A. D. Waser and M. P. Bacon. 1994. Cosmic ray produced
33P in Cl, S and K at
mountain altitude and calculation of oceanic production
rates, Geophys. Res. Letters, 21:991-994.
N. A. D. Waser and M. P. Bacon. 1995. Wet deposition fluxes
of cosmogenic 32P and
33P and variations in the
ratios at Bermuda. Earth and Planetary Science
N. A. D. Waser, M. P. Bacon and A. F. Michaels. 1996.
Natural activities of 32P
and 33P and the
ratio in suspended particulate matter and plankton in the
Sargasso Sea. Deep Sea Research, 43:421-436.
N. A. D. Waser, D. H. Turpin, P. J. Harrison and S. E.
Calvert. Nitrogen isotope fractionation during the uptake
and assimilation of nitrate, nitrite, ammonium and urea by a
marine diatom. Submitted to Limnology and Oceanography.