Abstract
Recent improvements in the analytical determination of nitrate and nitrite allow measurements of nanomolar concentrations in nitrogen-depleted surface waters, revealing variability not previously observable. The new methods allow direct observation of net nitrate consumption and production measured as changes in nitrate concentration over time in incubated samples of seawater. We find that nitrate concentrations in nitrogendepleted surface waters show regional differences, and sometimes diel differences. The variability in nitrate concentration reflects differences in atmospheric inputs, in physical forcing, as well as in the biological processes of nitrate uptake and nitrification. Examples are shown from the Southern California Bight (1986–1987), the equatorial Pacific (February–March, 1988), and the eastern subtropical Atlantic (March–April, 1989).
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Brzezinski, M. A. (1988). Vertical distribution of ammonium in stratified oligotrophic waters. Limnol. Oceanogr. 33: 1176–1182
Butler, J. H., Pequegnat, J. E., Gordon, L. I., Jones, R. D. (1988). Cycling of methane, carbon monoxide, nitrous oxide, and hydroxylamine in a meromictic, coastal lagoon. Estuar., cstl Shelf Sci. 27: 181–203
Cox, R. D. (1980). Development of analytical methodologies for parts per billion level determinations of nitrate, nitrite and Nnitroso group content. Ph. D. thesis. University of Iowa
Duce, R. A. (1986). The impact of atmospheric nitrogen, phosphorus, and iron species on marine biological productivity. In: Buat-Menard, P. (ed.) The role of air-sea exchange in geochemical cycling. D. Reidel, Dordrecht, Holland, p. 497–529
Dugdale, R. C., Jones, Jr., B. H., MacIsaac, J. J., Goering, J. J. (1981). Adaptation of nutrient assimilation. Can. Bull. Fish. aquat. Sciences 210: 210–250
Eppley, R. W., Renger, E. H. (1986). Nitrate-based primary production in nutrient-depleted surface waters off California. Océanogr. trop. 21: 229–238
Eppley, R. W., Renger, E. H. (1988). Nanomolar increase in surface layer nitrate concentration following a small wind event. Deep-Sea Res. 35: 1119–1125
Fine, D. H., Rounbehler, D. P., Silvergleid, A., Sawicki, E., Krost, K., DeMarrais, G. A. (1977). Determination of dimethylnitrosamine in air, water and soil by thermal energy analysis: measurements in Baltimore, Md. Envir. Sci. Technol. 11: 581–584
Garside, C. (1981). Nitrate and ammonia uptake in the apex of the New York Bight. Limnol. Oceanogr. 26: 731–739
Garside, C. (1982). A chemiluminescent technique for the determination of nanomolar concentrations of nitrate and nitrite in seawater. Mar. Chem. 11: 159–167
Garside, C. (1985). The vertical distribution of nitrate in open ocean surface water. Deep-Sea Res. 32: 723–732
Garside, C., Glover, H. E. (in press), Chemiluminescent measurements of nitrate kinetics: I.Thalassiosira pseudonana (Clone 3H) and neritic assemblages. J. Plankton Res.
Glover, H. E., Prézelin, B. B., Campbell, L., Wyman, M., Garside, C. (1988). A nitrate-dependentSynechococcus bloom in surface Sargasso Sea water. Nature, Lond. 331: 161–163
Goldman, J. C., Glibert, P. M. (1983). Kinetics of inorganic nitrogen uptake by phytoplankton. In: Carpenter, E. J., Capone, D. G. (eds.) Nitrogen in the marine environment. Academic Press, New York, p. 233–274
Grosjean, D., Harrison, J. (1985). Response of chemiluminescence NOx analyzers and ultraviolet ozone analyzers to organic air pollutants. Envir. Sci. Technol. 19: 862–865
Jenkin, M. E., Cox, R. A., Candeland, D. E. (1985). Photochemical aspects of tropospheric iodine behaviour. J. atmos. Chem. 2: 359–375
Kaplan, W. A. (1983). Nitrification. In: Carpenter, E. J., Capone, D. G. (eds.) Nitrogen in the marine environment. Academic Press, New York, p. 139–190
McCarthy, J. J., Garside, C., Nevins, J. L. (in preparation). Nitrate supply and phytoplankton uptake kinetics in the euphotic layer of a Gulf Stream warm-core ring.
McCarthy, J. J., Goldman, J. C. (1979). Nitrogenous nutrition of marine phytoplankton in nutrient-depleted waters. Science, N.Y. 203: 670–672
McCarthy, J. J., Taylor, W. R., Taft, J. L. (1975). The dynamics of nitrogen and phosphorus cycling in the open waters of Chesapeake Bay. Symp. Ser. Am. chem. Soc. 18: 664–681
Olson, R. J. (1981). Differential photoinhibition of marine nitrifying bacteria: a possible mechanism for the formation of the primary nitrite maximum. J. mar. Res. 39: 227–238
Palenik, B., Morel, F. M. M. (1988). Dark production of H2O2 in the Sargasso Sea. Limnol. Oceanogr. 33: 1606–1611
Platt, T., Harrison W. G., Lewis, M. R., Li, W. K. W., Sathyendranath, S., Smith, R. E., Vezina, A. F. (1989). Biological production of the occans: the case for a consensus. Mar. Ecol. Prog. Ser. 52: 77–88
Prospero, J. M., Savoie, D. L. (1989). Effect of continental sources on nitrate concentrations over the Pacific Ocean. Nature, Lond. 339: 687–689
Wada, E., Hattori, A. (1971). Nitrite metabolism in the euphotic layer of the central North Pacific Ocean. Limnol. Oceanogr. 16: 766–772
Ward, B. B., Kilpatrick, K. A., Renger, E., Eppley, R. W. (1989). Biological nitrogen cycling in the nitracline. Limnol. Oceanogr. 34: 493–513
Winer, A. M., Atkinson, R., Pitts, Jr., J. N. (1984). Gaseous nitrate radical: possible night-time atmospheric sink for biogenic compounds. Science, N.Y. 224: 156–159
Woods, J. D., Onken, R. (1982). Diurnal variation and primary production in the ocean. Preliminary results of a Lagrangian ensemble model. J. Plankton Res. 4: 735–756
Zafiriou, O. C., McFarland, M. (1980). Determination of trace levels of nitric oxide in aqueous solution. Analyt. Chem. 52: 1662–1667
Zafiriou, O. C., McFarland, M. (1981). Nitric oxide from nitrite photolysis in the central Equatorial Pacific. J. geophys. Res. 86: 3173–3182
Zafiriou, O. C., True, M. B. (1979). Nitrate photolysis in seawater in sunlight. Mar. Chem. 8: 33–42
Zafiriou, O. C., True, M. B. (1986). Interference in environmental analysis of NO by NO plus O3 detectors: a rapid screening technique. Envir. Sci. Technol. 20: 594–596
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Communicated by M.G. Hadfield, Honolulu
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Eppley, R.W., Garside, C., Renger, E.H. et al. Variability of nitrate concentration in nitrogen-depleted subtropical surface waters. Mar. Biol. 107, 53–60 (1990). https://doi.org/10.1007/BF01313241
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DOI: https://doi.org/10.1007/BF01313241