Laboratory and field studies of colloidal iron oxide dissolution as mediated by phagotrophy and photolysis

Limnology and Oceanography

Volumn 45, Issue 4, 2000, Pages 827-835

  Barbeau, K ^a,b   Moffett, J W ^a  

^a WOODS HOLE OCEANOGRAPHIC INSTITUTION   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COLLOID; DISSOLUTION; IRON OXIDE; PHAGOTROPHY; PHOTOLYSIS;

EID: 0034084585     PISSN: 00243590     EISSN: None     Source Type: Journal    
DOI: 10.4319/lo.2000.45.4.0827     Document Type: Article

References (31)

1. BARBEAU, K. 1998. Influence of protozoan grazing on the marine geochemistry of particle reactive trace metals. Ph.D. Thesis. MIT/WHOI Joint Program in Oceanography.
2. _, AND J. W. MOFFETT. 1998. Dissolution of iron oxides by phagotrophic protists: Using a novel method to quantify reaction rates. Env. Sci. Technol. 32: 2969-2975.
3. _, _, D. Caron, P. L. Croot, and D. Erdner. 1996. Role of protozoan grazing in relieving iron limitation of phytoplankton. Nature 380: 61-64.
4. CARON, D., E. L. LIM, G. MICELI, J. B. WATERBURY, AND F. W. VALOIS. 1991. Grazing and utilization of chroococcoid cyanobacteria and heterotrophic bacteria by protozoa in laboratory cultures and a coastal plankton community. Mar. Ecol. Prog. Ser. 76: 205-217.
5. COALE, K. H., AND OTHERS. 1996. A massive phytoplankton bloom induced by an ecosystem-scale iron fertilization experiment in the equatorial Pacific Ocean. Nature 383: 495-501.
6. CRUMBLISS, A. L. 1991. Aqueous solution equilibrium and kinetic studies of iron siderophore and model siderophore complexes, p. 177-233. In G. Winkelmann [ed.], CRC handbook of microbial iron chelates. CRC Press.
7. DE BAAR, H.J.W., A.G.J. BUMA, R. F. NOLTING, G. C. CADEE, G. JACQUES, AND P. J. TREGUER. 1990. On iron limitation of the Southern Ocean: Experimental observations in the Wedell and Scotia Seas. Mar. Ecol. Prog. Ser. 65: 105-122.
8. DENG, Y., AND W. STUMM. 1994. Reactivity of aquatic iron(III) oxyhydroxides - implications for redox cycling of iron in natural waters. Appl. Geochem. 9: 23-36.
9. FAUST, B. C., AND R. G. ZEPP. 1993. Photochemistry of aqueous iron(III)-polycarboxylate complexes: Roles in the chemistry of atmospheric and surface waters. Environ. Sci. Technol. 27: 2517-2522.
10. FISHER, N. S., R.R.L. GUILLARD, AND D. C. BANKSTON. 1991. The accumulation of barium by marine phytoplankton grown in culture. J. Mar. Res. 49: 339-354.
11. GAO, H., AND R. G. ZEPP. 1998. Factors influencing photoreactions of dissolved organic matter in a coastal river of the Southeastern United States. Environ. Sci. Technol. 32: 2940-2946.
12. HUTCHINS, D. A., AND K. W. BRULAND. 1998. Iron-limited diatom growth and Si : N uptake ratios in a coastal upwelling regime. Nature 393: 561-564.
13. JOHNSON, K. S., K. H. COALE, V. A. ELROD, AND N. W. TINDALE. 1994. Iron photochemistry in the equatorial Pacific. Mar. Chem. 46: 319-334.
14. LANDING, W. M., AND B. L. LEWIS. 1991. Collection, processing, and analysis of marine particulate and colloidal material for transition metals, p. 263-272. In D. C. Hurd and D. W. Spencer [eds.], Marine particles: Analysis and characterization. AGU Geophysical Monograph Series.
15. LANDRY, M. R., AND OTHERS. 1997. Iron and grazing constraints on primary production in the central equatorial Pacific: An EqPac synthesis. Limnol. Oceanogr. 42: 405-418.
16. LI, Y.-H., L. BURKHARDT, M. BUCHHOLTZ, P. O'HARA, AND P. H. SANTSCHI. 1984. Partitioning of radiotracers between suspended particles and seawater. Geochim. Cosmochim. Acta. 48: 2011-2019.
17. MARTIN J. H., AND S. E. FITZWATER. 1988. Iron deficiency limits phytoplankton growth in the north-east Pacific subarctic. Nature. 331: 341-343.
18. _, AND OTHERS. 1994. Testing the iron hypothesis in ecosystems of the equatorial Pacific Ocean. Nature 371: 123-129.
19. _, AND R. M. GORDON. 1988. Northeast Pacific iron distributions in relation to phytoplankton productivity. Deep-Sea Res. 35: 177-196.
20. MOFFETT, J. W. Transformations among different forms of Fe in seawater. In D. Turner and K. Hunter [eds.], The biogeochemistry of Fe in seawater. IUPAC Advances in Environmental Chemistry Series. In press.
21. PORTER, K. G., AND Y. S. FEIG. 1980. The use of DAPI for identifying and counting aquatic microflora. Limnol. Oceanogr. 25: 943-948.
22. PRICE, N. M., AND F. M. M. MOREL. 1998. Biological cycling of iron in the ocean. Met. Ions. Biol. Syst. 35: 1-36.
23. RUE, E. L., AND K. W. BRULAND. 1995. Complexation of iron(III) by natural organic ligands in the Central North Pacific as determined by a new competitive ligand equilibration/adsorptive cathodic stripping voltammetric method. Mar. Chem. 50: 117-138.
24. SHERR, B. F., E. B. SHERR, AND R. D. FALLON. 1987. Use of monodispersed, fluorescently labeled bacteria to estimate in situ protozoan bacterivory. Appl. Env. Micobiol. 53: 958-965.
25. _, _, T. L. Andrew, _, and S. Y. Newell. 1986. Trophic interactions between heterotrophic protozoa and bacterioplankton in estuarine water analyzed with selective metabolic inhibitors. Mar. Ecol. Prog. Ser. 32: 169-179.
26. VALIELA, I. 1995. Marine Ecological Processes. Springer.
27. WAITE, T. D., AND F.M.M. MOREL. 1984. Photoreductive dissolution of colloidal iron oxide: Effect of citrate. J. Colloid. Interface Sci. 102: 121-137.
28. WELLS, M. L., AND L. M. MAYER. 1991. The photoconversion of colloidal iron hydroxides in seawater. Deep-Sea Res. 38: 1379-1395.
29. _, _, O.F.X. Donard, M. M. de Souza Sierra, and S. Ackleson. 1991. The photolysis of colloidal iron in the oceans. Nature 353: 248-250.
30. _, N. M. PRICE, AND K. W. BRULAND. 1995. Iron chemistry in seawater and its relationship to phytoplankton: A workshop report. Mar. Chem. 48: 157-182.
31. WU, J., AND G. W. LUTHER. 1995. Complexation of Fe(III) by natural organic ligands in the Northwest Atlantic Ocean by a competitive ligand equilibration method and kinetic approach. Mar. Chem. 50: 159-177.