Joseph Montoya, Associate Professor

About Joseph Montoya

Ph.D., Biology, Harvard University, 1990
joseph.montoya@biology.gatech.edu
Phone: (404) 385-0479
Fax: (404) 385-4440
Office: Enviornmental Science & Technology 1244/1125, 1126, 1128

Publications

Burns, J.A., J.P. Zehr, J.P. Montoya, A.D. Kustka, and D.G. Capone. In Press. Effect of EDTA additions on natural Trichodesmium spp.(Cyanophyta) populations. J. Phycol.

Wilson, C., T.A. Villareal, N. Maximenko, S.J. Bograd, J.P. Montoya, and C.A. Schoenbaechler. In Press. Biological and physical forcings of late summer chlorophyll blooms at 30°N in the oligotrophic Pacific. J. Mar. Syst.

Krauk, J., T.A. Villareal, J.A. Sohm, J.P. Montoya, and D.G. Capone. 2006. Plasticity of N:P ratios in laboratory and field populations of Trichodesmium spp. Aquat. Microb. Ecol. 42: 243-253.

Montoya, J.P., and M. Voss. 2006. Nitrogen cycling in anoxic waters: Isotopic signatures of nitrogen transformations in the Arabian Sea Oxygen Minimum Zone. In Past and Present Water Column Anoxia, Neretin, L.N, Ed. NATO Science Series IV: Earth and Environmental Sciences, 64. Springer, Dordrecht, Netherlands.

Campbell L, E.J. Carpenter, J.P. Montoya, A.B. Kustka, and D.G. Capone. 2005. Picoplankton community structure within and outside a Trichodesmium bloom in the southwestern Pacific Ocean. Vie et Milieu 55: 185-195.

Joye, S.B., I.R. MacDonald, J.P. Montoya, and M. Peccini. 2005. Geophysical and geochemical signatures of Gulf of Mexico seafloor brines. Biogeosciences 2: 295-309.

*Holl, C.M. and J.P. Montoya. 2005. Interactions between nitrate uptake and N₂-fixation in Trichodesmium. J. Phycol. 41: 1178-1183.

Capone, D.G., J.A. Burns, C.A. Mahaffey, A.F. Michaels, J.P. Montoya, A. Subramaniam, and E.J. Carpenter. 2005. Nitrogen fixation by Trichodesmium spp.: An important source of new nitrogen to the tropical North Atlantic Ocean. Glob. Biogeochem. Cycles 19: GB2024, doi:10.1029/2004GB002331.

*Garton, D.W., C.D. Payne, and J.P. Montoya. 2005. Flexible diet and trophic position of Dreissenid mussels inferred from stable isotopes of carbon and nitrogen. Can. J. Fish. Aquat. Sci. 62, 1119-1129.

Montoya, J.P., C.M. Holl, J.P. Zehr, A. Hansen, T.A. Villareal, and D.G. Capone. 2004. High rates of N₂-fixation by unicellular diazotrophs in the oligotrophic Pacific. Nature 430: 1027-1031.

*Pakhomov, E.A, J.W. McClelland, K. Bernard, S. Kaehler, and J.P. Montoya. 2004. Spatial and temporal shifts in stable isotope values of the bottom-dwelling shrimp Nauticaris marionis at the sub-Antarctic archipelago. Mar. Biol. 144: 317-325.

*Schmidt, K., J.W. McClelland, E. Mente, J.P. Montoya, A. Atkinson, and M. Voss. 2004. Trophic-level interpretation based on delta N-15 values: Implications of tissue-specific fractionation and amino acid composition. Marine Ecology Progress Series 266: 43-58.

Joye, S.B., A. Boetius, B.N. Orcutt, J.P. Montoya, H.N. Schulz, M.J. Erickson, and S.K. Lugo. 2004. The anaerobic oxidation of methane and sulfate reduction in sediments from Gulf of Mexico cold seeps. Chemical Geology 205(3/4): 219-238.

Steward, G, J.P. Zehr, R. Jellison, J.P. Montoya, and J.T. Hollibaugh. 2003. Vertical distribution of nitrogen-fixing phylotypes in a meromictic hypersaline lake. Microbial Ecology 47: 30-40.

Branstrator, D.K., Mwebaza-Ndawula, L, and J.P. Montoya. 2003. Consumer-resource relationships in Lake Victoria, East Africa. Hydrobiologia 493: 27-34

*McClelland, J.W., C.M. Holl, and J.P. Montoya. 2003. Relating low δ¹⁵N values of zooplankton to N₂-fixation in the tropical North Atlantic: Insights provided by stable isotope ratios of amino acids. Deep-Sea Research I 50: 849-861.

Schmidt, K, A. Atkinson, J.W. McClelland, J.P. Montoya, D. Stübing, and M. Voss. 2003. Trophic relationships among Antarctic zooplankton: Some benefits and limitations of a stable isotope perspective. Limnology and Oceanography 48: 277-289.

Montoya, J.P., E.J. Carpenter, and D.G. Capone. 2002. Nitrogen-fixation and nitrogen isotope abundances in zooplankton of the oligotrophic North Atlantic. Limnology and Oceanography 47: 1617-1628.

Nisbet, I.C.T., J.P. Montoya, J. Burger, and J.J. Hatch. 2002. Use of stable isotopes to investigate individual differences in diets and mercury exposures among common terns (Sterna hirundo) breeding in the northwest Atlantic Ocean and wintering in the southwest Atlantic. Marine Ecology Progress Series 242: 267-274.

* Pardo, L.H., H.F. Hemond, J.P. Montoya, T.J. Fahey and T.G. Siccama. 2002. Response of natural abundance of ¹⁵N in forest soils to high nitrate loss following clear-cutting. Canadian Journal of Forest Research 32: 1126-1136.

*McClelland, J.W. and J.P. Montoya. 2002. Trophic relationships and the nitrogen isotopic composition of amino acids in plankton. Ecology 83: 2173-2180.

*Pardo, L.H., H.F. Hemond, J.P. Montoya and T.G. Siccama. 2001. Long-term patterns in forest floor ¹⁵N natural abundance at Hubbard Brook, N.H. Soil Science Society of America Journal. 65: 1279-1283

Zehr, J.P., J.B. Waterbury, P.J. Turner, J.P. Montoya, E. Omoregie, G.F. Steward, A. Hansen, and D.M. Karl. 2001. New nitrogen-fixing unicellular cyanobacteria discovered in the North Pacific Central Gyre. Nature 412: 635-638.

Capone, D.G. and J.P. Montoya. 2001. Nitrogen Fixation and Denitrification. Ch. 10 in Methods in Marine Microbiology, vol. 30. J.Paul, ed. 501-515.

*Voss, M., J. Dippner, J.P. Montoya. 2001. Nitrogen isotope patterns in the oxygen deficient waters of the Eastern Tropical North Pacific (ETNP). Deep-Sea Res. 48: 1905-1921.

Carpenter, E.J., J.P. Montoya, J. Burns, M. Mulholland, A. Subramanian, and D.G. Capone. 1999. Extensive bloom of a N₂-fixing symbiotic association (Hemiaulus hauckii and Richelia intracellularis) in the tropical Atlantic Ocean. Mar. Ecol. Prog. Ser. 185: 273-283.

Tucker, J., N. Sheats, A.E. Giblin, C.S. Hopkinson, and J.P. Montoya. 1999. Using stable isotopes to trace sewage derived material through Boston Harbor and Massachusetts Bay. Mar. Environ. Res. 48: 353-375.

*Milder, J.C., J.P. Montoya, and M.A. Altabet. 1999. Carbon and nitrogen stable isotope ratios at Sites 969 and 974: Interpreting spatial gradients in sapropel properties. Proc. Deep-Sea Drilling Prog., Sci. Results (R. Zahn, M.C. Comas, and A. Klaus, eds.). Volume 161: 401-412

*Barford, C.C., J.P. Montoya, M.A. Altabet, and R. Mitchell. 1999. Steady state nitrogen isotope effects of N₂ and N₂O production in Paracoccus denitrificans. Appl. Env. Microbiol. 65: 989-994.

Capone, D.G., A. Subramanian, J.P. Montoya, M. Voss, C. Humborg, A.M. Johansen, R.L. Siefert, and E.J. Carpenter. 1998. An extensive bloom of the diazotrophic cyanobacterium, Trichodesmium, in the Central Arabian Sea during the spring intermonsoon. Mar. Ecol. Prog. Ser. 172: 281-292.

Goericke, R. and J.P. Montoya. 1998. Estimating the contribution of microalgal taxa to total chl a in the field – variations of pigment ratios under nutrient- and light-limited growth. Mar. Ecol. Prog. Ser. 169: 97-112.

Voss, M, Nausch, G., and J.P. Montoya. 1997. Nitrogen stable isotope dynamics in the central Baltic Sea: influence of deep-water renewal on the N-cycle. Mar. Ecol. Prog. Ser. 158: 11-21.

Frazer, T.K., R.M. Ross, L.B. Quetin, and J.P. Montoya. 1997. Turnover of carbon and nitrogen during growth of larval krill, Euphausia superba: a stable isotope approach. J. Exp. Mar. Biol. Ecol. 212: 259-275.

Montoya, J.P., M. Voss, P. Kaehler and D.G. Capone. 1996. A simple, high-precision, high-sensitivity tracer assay for N₂ fixation. Appl. Env. Microbiol. 62: 986-993.

Christensen, J.P., D.W. Townsend and J.P. Montoya. 1996. Water column nutrients and sedimentary denitrification in the Gulf of Maine. Cont. Shelf Res. 16: 489-515.

Montoya, J.P. and J.J. McCarthy. 1995. Isotopic fractionation during nitrate uptake by marine phytoplankton grown in continuous culture. J. Plankton Res. 17: 439-464.

Montoya, J.P. 1994. Nitrogen Isotope Fractionation in the Modern Ocean: Implications for the Sedimentary Record, pp. 259-279. In R. Zahn, M. A. Kaminski, L. Labeyrie and T. F. Pederson [eds.], Carbon Cycling in the Glacial Ocean: Constraints on the Ocean's Role in Global Change. Springer-Verlag, Berlin.

Goericke, R., J.P. Montoya and B. Fry. 1994. Physiology of isotope fractionation in algae and cyanobacteria, pp. 187-221. In K. Lajtha and B. Michener [eds.], Stable Isotopes in Ecology and Environmental Science. Blackwell Scientific Publications, Oxford.

Montoya, J.P., P.H. Wiebe and J.J. McCarthy. 1992. Natural abundance of ¹⁵N in particulate nitrogen and zooplankton in the Gulf Stream region and Warm-Core Ring 86A. Deep-Sea Res. 39, Suppl. 1: S363-S392.

Montoya, J.P., S.G. Horrigan and J.J. McCarthy. 1991. Rapid, storm-induced changes in the natural abundance of ¹⁵N in a planktonic ecosystem, Chesapeake Bay, USA. Geochim. Cosmochim. Acta 55: 3627-3638.

Montoya, J.P., S.G. Horrigan and J.J. McCarthy. 1990. Natural abundance of ¹⁵N in particulate nitrogen and zooplankton in the Chesapeake Bay. Mar. Ecol. Prog. Ser. 65: 35-61.zoopl?

Horrigan, S.G., J.P. Montoya, J.L. Nevins, J.J. McCarthy, H.W. Ducklow, R. Goericke and T. Malone. 1990. Nitrogenous nutrient transformations in the spring and fall in the Chesapeake Bay. Est. Coast. Shelf Sci. 30: 369-391.

Horrigan, S.G., J.P. Montoya, J.L. Nevins and J.J. McCarthy. 1990. Natural isotopic composition of dissolved inorganic nitrogen in the Chesapeake Bay. Est. Coast. Shelf Sci. 30: 393-410.