Education

Long Island University, Southampton College. Chemistry (summa cum laude) B.Sc. 1991

Massachusetts Institute of Technology/Woods Hole Oceanographic Institution Joint Program. Chemical Oceanography Ph.D. 1998 (Thesis title: Influence of protozoan grazing on the marine geochemistry of particle reactive trace metals) Advisor: Dr. J. W. Moffett

Postdoctoral Fellow at University of California, Santa Barbara. 1998-2001. Advisor: Professor Alison Butler

Research Interests

Trace metal/biological interactions in the marine environment

Appointments

- July 2008 to present. Associate Professor/Researcher, Geosciences Research Division, Scripps Institution of Oceanography/UC San Diego
- Sept. 2001 to June 2008. Assistant Professor/Researcher, Geosciences Research Division, Scripps Institution of Oceanography/UC San Diego
- Sept. 1998 to Sept 2001. Postdoctoral Fellow, Department of Chemistry and
Biochemistry, UC Santa Barbara. Advisor: Alison Butler.
- May 1, 1998 to July 31, 1998. Postdoctoral Investigator, Marine Chemistry and Geochemistry Department, WHOI. Advisor: Jim Moffett.
- 1992 to 1998. Research assistant,WHOI.

Awards

- NASA New Investigator Program Award (Sept. 2002)
- University of California President’s Postdoctoral Fellowship (1999-2001).
- Ruth and Paul Fye WHOI/MIT Graduate Student Best Paper in Chemical Oceanography, 2000

Courses Taught Currently

SIO 260 Marine Chemistry 
SIO 40 Life and Climate on Earth
 

Publications

Hopkinson, B. M., K.L. Roe and K. Barbeau. 2008. Heme uptake by Microscilla marina and evidence for heme uptake systems in the genomes of diverse marine bacteria. Appl. Env. Microbiol. 74: 6263-6270.

Hopkinson, B.M. and K. Barbeau. 2008. Interactive influences of iron and light limitation on phytoplankton at subsurface chlorophyll maxima in the eastern North Pacific. Limnol. Oceanogr. 53: 1303-1318.

Dupont, C.L., K. Barbeau and B. Palenik. 2008. Ni limitation and uptake in marine Synechococcus. Appl. Environ. Microbiol. 74: 23-31.

Hopkinson, B. M., B. G. Mitchell, R. A. Reynolds, H. Wang, K. E. Selph, C. I. Measures, C. D. Hewes, O. Holm-Hansen, and K. A. Barbeau. 2007. Iron limitation across chlorophyll gradients in the southern Drake Passage: Phytoplankton responses to iron addition and photosynthetic indicators of iron stress. Limnol. Oceanogr. 52: 2540-2554.

King, A.L. and K. Barbeau. 2007. Evidence for phytoplankton iron limitation in the southern California current system. Mar. Ecol. Prog. Ser. 342:91-104.

Johnson, K.S., E. Boyle, K. Bruland, K. Coale, C. Measures, J. Moffett, A. Aguilar-Islas, K. Barbeau, B. Bergquist, A. Bowie, K. Buck, Y. Cai, Z. Chase, J. Cullen, T. Doi, V. Elrod, S. Fitzwater, M. Gordon, A. King, P. Laan, L. Laglera-Baquer, W. Landing, M. Lohan, J. Mendez, A. Milne, H. Obata, L. Ossiander, J. Plant, G. Sarthou, P. Sedwick, G.J. Smith, B. Sohst, S. Tanner, S. Van den Berg and J. Wu. 2007. Developing standards for dissolved iron in seawater. EOS. Vol. 88, No. 11, 13 Mar 2007, pp. 131-132.

Barbeau, K. 2006. Photochemistry of organic iron(III) complexing ligands in oceanic systems. Photochem. Photobio. 82: 1505-1516.

Hopkinson, B.M. and K. A. Barbeau. 2007. Organic and redox speciation of iron in the eastern tropical North Pacific suboxic zone. Mar. Chem. 106: 2-17 (DOI:10.1016/j.marchem.2006.02.008)

Barbeau, K., E.L. Rue, C.G. Trick, K.W. Bruland and A. Butler. 2003. The photochemical reactivity of siderophores produced by marine heterotrophic bacteria and cyanobacteria, based on characteristic iron(III)-binding groups. Limnol. Oceanogr. 48: 1069-1078.

Barbeau, K., G. Zhang, D.H. Live and A. Butler. 2002. Petrobactin, a photoreactive siderophore produced by the oil-degrading marine bacterium Marinobacter hydrocarbonoclasticus. J. Am. Chem. Soc. 124: 378-379.

Barbeau, K., E.L. Rue, K.W. Bruland and A. Butler. 2001. Photochemical cycling of iron in the surface ocean mediated by microbial iron(III)-binding ligands. Nature 413: 409-413.

Barbeau, K., E.B. Kujawinski and J.W. Moffett. 2001. Remineralization and recycling of iron, thorium and organic carbon by heterotrophic marine protists in culture. Aqat. Microb. Ecol. 24: 69-81.

Barbeau, K. and J.W. Moffett. 2000. Laboratory and field studies of colloidal iron oxide dissolution as mediated by phagotrophy and photolysis. Limnol. Oceanogr. 45: 827-835.

Barbeau, K. and J.W. Moffett. 1998. Dissolution of Fe oxides by phagotrophic protists: Using a novel method to quantify reaction rates. Env. Sci. Technol. 32: 2969-2975.

Moffett, J.W., L.E. Brand, P.L. Croot and K.A. Barbeau. 1997. Cu speciation and cyanobacterial distribution in harbours subject to anthropogenic Cu inputs. Limnol. Oceanogr. 42: 789-799.

Barbeau, K., J.W. Moffett, D.A. Caron, P.L. Croot and D.L. Erdner. 1996. Role of protozoan grazing in relieving iron limitation of phytoplankton. Nature 380: 61-64.

Barbeau, K. and R. Wollast. 1994. Microautoradiography (with combined liquid scintillation) applied to the study of trace metal uptake by suspended particles: Initial results using 63Ni as a tracer. Limnol. Oceanogr. 39: 1211-1222.