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  • Altabet, M. A., J. J. McCarthy, Temporal and spatial variation in the natural abundance of 15N in PON from a warm-core ring, Deep Sea Res., 32, 755772, 1985.
  • Altabet, M. A., Variations in nitrogen isotopic composition between sinking and suspended particles: Implications for nitrogen cycling and particle transformation in the open ocean, Deep Sea Res., 35, 535554, 1988.
  • Altabet, M. A., W. G. Deuser, S. Honjo, C. and Stienen, Seasonal and depth-related changes in the source of sinking particles in the North Atlantic, Nature, 354, 136139, 1991.
  • Altabet, M. A., R. Francois, Sedimentary nitrogen isotopic ratio as a recorder for surface ocean nitrate utilization, Global Biogeochem. Cycles, 8, 103116, 1994a.
  • Altabet, M. A., R. Francois, The use of nitrogen isotopic ratio for reconstruction of past changes in surface ocean nutrient utilization, Carbon Cycling in the Glacial Ocean: Constraints on the Ocean's Role in Global ChangeR. Zahn, et al., NATO ASI Series, 17, 281306, Springer-Verlag, New York, 1994b.
  • Altabet, M. A., C. Pilskaln, R. Thunell, C. Pride, D. Sigman, F. Chavez, R. Francois, The Nitrogen isotope biogeochemistry of sinking particles from the margin of the eastern North Pacific, Deep Sea Res. Part I, 46, 655679, 1999.
  • Arrigo, K. R., J. N. Kremer, C. W. Sullivan, A simulated Antarctic fast ice ecosystem, J. Geophys. Res., 98, 69296946, 1993.
  • Biggs, D. C., S. P. Berkowitz, M. A. Altabet, R. R. Bidigare, D. J. DeMaster, R. B. Dunbar, A. Leventer, S. A. Macko, C. A. Nittrouer, M. E. Ondrusek, A cooperative study of upper-ocean particulate fluxes in the Weddell Sea, Proc. of the Ocean Drill. Prog. Initial Rep., 113, 7786, 1988.
  • Braman, R. S., S. A. Hendrix, Nanogram nitrite and nitrate determination in environmental and biological materials by V(III) reduction with chemiluminescence detection, Anal. Chem., 61, 27152718, 1989.
  • Brandes, J. A., A. H. Devol, Isotopic fractionation of oxygen and nitrogen in coastal marine sediments, Geochim. Cosmochim. Acta, 61, 17931801, 1997.
  • Brandes, J. A., A. H. Devol, T. Yoshinari, D. A. Jayakumar, S. W. A. Naqvi, Isotopic composition of nitrate in the central Arabian Sea and eastern tropical North Pacific: A tracer for mixing and nitrogen cycles, Limnol. Oceanogr., 43, 16801689, 1998.
  • Charles, C. D., R. G. Fairbanks, Glacial to interglacial changes in the isotopic gradients of southern Ocean surface water, Geological History of the Polar Oceans: Arctic versus AntarcticU. Bleil, J. Thiede, 519538, Kluwer Acad., Norwell, Mass., 1990.
  • Checkley, D. M., C. A. Miller, Nitrogen isotope fractionation by oceanic zooplankton, Deep Sea Res., 36, 14491456, 1989.
  • Cline, J. D., I. R. Kaplan, Isotopic fractionation of dissolved nitrate during denitrification in the eastern tropical North Pacific Ocean, Mar. Chem., 3, 271299, 1975.
  • Cullen, J. J., Hypotheses to explain high-nutrient conditions in the open sea, Limnol. Oceanog., 36, 15781599, 1991.
  • De La Rocha, C. L., M. A. Brezinski, M. J. DeNiro, Fractionation of silicon isotopes by marine diatoms during biogenic silica fromation, Geochim. Cosmochim. Acta, 61, 50515056, 1997.
  • De La Rocha, C. L., M. A. Brzezinski, M. J. DeNiro, A. Shemesh, Silicon-isotope composition of diatoms as an indicator of past oceanic change, Nature, 395, 680683, 1998.
  • DeNiro, M. J., S. Epstein, Influence of diet on the distribution of nitrogen isotopes in animals, Geochim. Cosmochim. Acta, 45, 341351, 1981.
  • Farrell, J. W., T. F. Pedersen, S. E. Calvert, B. Nielsen, Glacial-interglacial changes in nutrient utilization in the equatorial Pacific Ocean, Nature, 377, 514517, 1995.
  • Francois, R., M. A. Altabet, L. H. Burkle, Glacial to interglacial changes in surface nitrate utilization in the Indian sector of the Southern Ocean as recorded by sediment δ15N, Paleoceanography, 7, 589606, 1992.
  • Francois, R. F., M. A. Altabet, E.-F. Yu, D. M. Sigman, M. P. Bacon, M. Frank, G. Bohrmann, G. Bareille, L. D. Labeyrie, Water column stratification in the Southern Ocean contributed to the lowering of glacial atmospheric CO2, Nature, 389, 929935, 1997.
  • Fry, B., W. Brand, F. J. Mersch, K. Tholke, R. Garritt, Automated analysis system for coupled δ13C and δ15N measurements, Anal. Chem., 64, 288291, 1992.
  • Gargett, A. E., Physical processes and the maintenance of nutrient-rich euphotic zones, Limnol. Oceanog., 36, 15271545, 1991.
  • Garside, C., A chemiluminescent technique for the determination of nanomolar concentrations of nitrate, nitrite, or nitrite alone in seawater, Mar. Chem., 11, 159167, 1982.
  • Goering, J., V. Alexander, N. Haubenstock, Seasonal variability of stable carbon and nitrogen isotope ratios of organisms in a North Pacific Bay, Estuarine Coastal Shelf Sci., 30, 239260, 1990.
  • Gordon, A. L., H. W. Taylor, D. T. Georgi, Antarctic oceanographic zonation, Polar OceansM. J. Dunbar, 4576, Arct. Inst. of North Am., Calgary, Alberta, Can., 1977.
  • Gordon, A. L., C. T. A. Chen, W. G. Metcalf, Winter mixed layer entrainment of Weddell Deep Water, J. Geophys. Res., 89, 637640, 1984.
  • Horrigan, S. G., J. P. Montoya, J. L. Nevins, J. J. McCarthy, Natural isotopic composition of dissolved inorganic nitrogen in the Chesapeake Bay, Esturarine Coastal Shelf Sci., 30, 393410, 1990.
  • Howard, W. R., W. L. Prell, Late Quaternary CaCO3 production and preservation in the Southern Ocean: Implications for oceanic and atmospheric carbon cycling, Paleoceanography, 9, 453482, 1994.
  • Jacques, G., Primary production in the open Antarctic Ocean during the austral summer, a review, Vie Milieu, 39, 117, 1989.
  • Keigwin, L. D., E. A. Boyle, Late quaternary paleochemistry of high-latitude surface waters, Paleogeogr. Palaeoclimatol. Paleoecol., 73, 85106, 1989.
  • Knox, F., M. McElroy, Changes in atmospheric CO2 influence of the marine biota at high latitude, J. Geophys. Res., 89, 46294637, 1984.
  • Kopczynska, E. E., L. H. Weber, S. Z. El-Sayed, Phytoplankton species composition and abundance in the Indian sector of the Antarctic Ocean, Polar Biol., 6, 161169, 1986.
  • Kumar, N., R. Gwiazda, R. F. Anderson, P. N. Froelich, 231Pa/230Th ratios in sediments as a proxy for past changes in Southern Ocean productivity, Nature, 362, 4548, 1993.
  • Kumar, N., R. F. Anderson, R. A. Mortlock, P. N. Froelich, P. Kubik, B. Dittrich-Hannen, M. Suter, Increased biological productivity and export production in the glacial Southern Ocean, Nature, 378, 675680, 1995.
  • Ledwell, R. J., A. J. Watson, C. S. Law, Evidence for slow mixing across the pycnocline from an open-ocean tracer-release experiment, Nature, 364, 701703, 1993.
  • Liu, K.-K., I. R. Kaplan, The eastern tropical Pacific as a source of 15N-enriched nitrate in seawater off southern California, Limnol. Oceanogr., 34, 820830, 1989.
  • Liu, K. K., M. J. Su, C. R. Hsueh, G. C. Gong, The nitrogen isotopic composition of nitrate in the Kuroshio Water northeast of Taiwan: Evidence for nitrogen fixation as a source of isotopically light nitrate, Mar. Chem., 54, 273292, 1996.
  • Mariotti, A., J. C. Germon, P. Hubert, P. Kaiser, R. Letolle, A. Tardieux, P. Tardieux, Experimental determination of nitrogen kinetic isotope fractionation: Some principles; illustration for the denitrification and nitrification processes, Plant and Soil, 62, 413430, 1981.
  • Martin, J. H., S. E. Fitzwater, R. M. Gordon, Iron deficiency limits growth in Antarctic waters, Global Biogeochem. Cycles, 4, 512, 1990.
  • Mashiotta, T. A., D. W. Lea, Planktic Cd indicates enhanced nutrient utilization in the glacial Subantarctic (abstract), Eos Trans. AGU, 7846, 391, 1997.
  • McCartney, M. S., Subantarctic mode water, A Voyage of Discovery: George Deacon 70th Anniversary Volume, Supplement to Deep Sea ResearchM. Angel, 103119, Pergamon, Oxford, 1977.
  • McCartney, M. S., The subtropical circulation of mode waters, J. Mar. Res., 40, Supplement, 427464, 1982.
  • Mitchell, B. G., E. A. Brody, O. Holm-Hansen, C. McCLain, J. Bishop, Light limitation of phytoplankton biomass and macronutrient utilization in the Southern Ocean, Limnol. Oceanog., 36, 16621677, 1991.
  • Montoya, J. P., 1994, Nitrogen isotope fractionation in the modern ocean: implications for the sedimentary record, Carbon Cycling in the Glacial Ocean: Constraints on the Ocean's Role in Global ChangeR. Zahn, et al., NATO ASI Series, 17, 259279, Springer-Verlag, New York, 1994.
  • Montoya, J. P., J. J. McCarthy, Isotopic fractionation during nitrate uptake by marine phytoplankton grown in continuous culture, J. Plankton Res., 17, 439464, 1995.
  • Mortlock, R. A., C. D. Charles, P. N. Froelich, M. A. Zibello, J. Saltzman, J. D. Hays, L. H. Burckle, Evidence for lower productivity in the Antarctic during the last glaciation, Nature, 351, 220223, 1991.
  • Nakatsuka, T., N. Handa, E. Wada, C. S. Wong, The dynamic changes of stable isotope ratios of carbon and nitrogen in suspended and sedimented particulate organic matter during a phytoplankton bloom, J. Mar. Res., 50, 267296, 1992.
  • Nelson, D. M., W. O. Smith Jr., Phytoplankton bloom dynamics of the western Ross Sea ice edge-II. Mesoscale cycling of nitrogen and silicon, Deep Sea Res., 33, 13891412, 1986.
  • Neshyba, S., T. R. Fonesca, Evidence for counterflow to the West Wind Drift off South America, J. Geophys. Res., 85, 48884892, 1980.
  • Nowlin Jr., W. D., J. M. Klinck, The physics of the Antarctic Circumpolar Current, Rev. Geophys., 24, 469491, 1986.
  • Orsi, A. H., T. W. Whitworth, W. D. Nowlin, On the meridional extent and fronts of the Antarctic Circumpolar Current, Deep Sea Res. Part I, 42, 641673, 1995.
  • Patterson, S. L., T. Whitworth, Physical Oceanography, Antarctic Sector of the PacificG. P. Glasby, 5592, Elsevier Sci., New York, 1990.
  • Pennock, J. R., D. J. Velinsky, D. J. Ludlam, J. H. Sharp, M. L. Fogel, Isotopic fractionation of ammonium and nitrate during uptake by Skeletonema costatum: Implications for δ15N dynamics under bloom conditions, Limnol. Oceanogr., 41, 451459, 1996.
  • Pickard, G. L., Some physical oceanographic features of inlets of Chile, J. Fish. Res. Board Can., 28, 10771106, 1971.
  • Piola, A. R., D. T. Georgi, Circumpolar properties of Antarctic Intermediate Water and Subantarctic Mode Water, Deep Sea Res., Part I, 29, 687711, 1982.
  • Rau, G. H., C. W. Sullivan, L. I. Gordon, δ13C and δ15N variations in Weddell Sea particulate organic matter, Mar. Chem., 35, 355369, 1991.
  • Reeburgh, W. S., Fluxes associated with brine motion in growing sea ice, Polar Biol., 3, 2933, 1984.
  • Rickaby, R. E. M., H. Elderfield, Planktonic foraminiferal Cd/Ca: Paleonutrients or paleotemperature?, Paleoceanography, 14, 293303, 1999.
  • Rosenthal, Y., E. A. Boyle, L. Laybeyrie, Last glacial maximum paleochemistry and deepwater circulation in the Southern Ocean: Evidence from foraminiferal cadmium, Paleoceanography, 12, 787796, 1997.
  • Sarmiento, J. L., J. R. Toggweiler, A new model for the role of the oceans in determining atmospheric pCO2, Nature, 308, 621624, 1984.
  • Schlosser, P., W. Roether, G. Rohardt, Helium-3 balance of the upper layers of the northwestern Weddell Sea, Deep Sea Res., 34, 365377, 1987.
  • Shemesh, A., S. A. Macko, C. D. Charles, G. H. Rau, Isotopic evidence for reduced productivity in the glacial Southern Ocean, Science, 262, 407410, 1993.
  • Sieganthaler, U., T. Wenk, Rapid atmospheric CO2 variations and ocean circulation, Nature, 308, 624626, 1984.
  • Sigman, D. M., M. A. Altabet, R. H. Michener, D. C. McCorkle, B. Fry, R. M. Holmes, Natural abundance-level measurement of the nitrogen isotopic composition of oceanic nitrate: An adaptation of the ammonia diffusion method, Mar. Chem., 57, 227242, 1997.
  • Sigman, D. M., M. A. Altabet, R. Francois, D. C. McCorkle, J-F. Gaillard, The isotopic composition of diatom-bound nitrogen in Southern Ocean sediments, Paleoceanography, 14, 118134, 1999.
  • Singer, A. J., A. Shemesh, Climatically linked carbon isotope variation during the past 430,000 years in Southern Ocean sediments, Paleoceanography, 10, 171178, 1995.
  • Smith Jr., W. O., E. Sakshaug, Polar phytoplankton, Polar OceanographyW. O. Smith Jr., 477525, Academic Press, San Diego, 1990.
  • Smith, N., P. Treguer, Physical and chemical oceanography in the vicinity of Prydz Bay, Antarctica, Southern Ocean Ecology: the BIOMASS PerspectiveS. Z. El-Sayed, 2543, Cambridge Univ. Press, New York, 1994.
  • Sullivan, C. W., C. R. McClain, J. C. Comiso, W. O. J. Smith, Phytoplankton standing crops within the Antarctic ice edge assessed by satellite remote sensing, J. Geophys. Res., 93C10, 12,48712,498, 1988.
  • Treguer, P., G. Jacques, Dynamics of nutrients and phytoplankton, and fluxes of carbon, nitrogen, and silicon in the Antarctic Ocean, Polar Biol., 12, 149162, 1992.
  • Wada, E., A. Hattori, Nitrogen isotope effects in the assimilation of inorganic nitrogenous compounds, Geomicrobiol. J., 1, 85101, 1978.
  • Wada, E., Nitrogen isotope fractionation and its significance in biogeochemical processes occurring in marine environments, Isotope Marine ChemistryE. Goldberg, Y. Horibe, K. Saruhashi, 375398, Uchida Rokakuho, Tokyo, 1980.
  • Ward, B. B., Nitrification in marine environments, NitrificationJ. I. Prosser, 157184, IRL Press, Oxford, 1986.
  • Waser, N. A. D., J. Needoba, S. E. Calvert, P. J. Harrison, Nitrogen isotope fractionation by four groups of marine microalgae during batch culture growth on nitrateAmerican Society of Limnology and Oceanography Aquatic Sciences MeetingSanta Fe, N.M., 1997.
  • Waser, N. A. D., D. H. Turpin, P. J. Harrison, B. Nielsen, S. E. Calvert, Nitrogen isotope fractionation during the uptake and assimilation of nitrate, nitrite, and urea by a marine diatom, Limnol. Oceanogr., 43, 215224, 1998.
  • Whitehouse, M. J., J. Priddle, E. M. S. Woodward, Spatial variability of inorganic nutrients in the marginal ice zone of the Bellingshausen Sea during the Austral spring, Deep Sea Res., Part II, 42, 10471058, 1995.
  • Whitworth, T., W. D. Nowlan, Water masses and currents of the Southern Ocean at the Greenwich meridian, J. Geophys. Res., 92, 64626476, 1987.
  • Wu, J., S. E. Calvert, C. S. Wong, Nitrogen isotope variations in the northeast subarctic Pacific: Relationships to nitrate utilization and trophic structure, Deep Sea Res., 44, 287314, 1997.
  • Yu, E.-F., Variations in the particulate flux of 230Th and 231Pa and paleoceanographic applications of 231Pa/230Th ratio, Ph.D. thesis,MIT/WHOI Joint Program in Oceanography,Woods Hole, Mass.,1994.