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UNIVERSITY OF SOUTH CAROLINA
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CLAUDIA R. BENITEZ-NELSON

Professor, Department of Earth & Ocean Sciences & Marine Science Program

University of South Carolina

EWS 408, 700 Sumter St.

Columbia, SC 29208

FAX: (803) 777-6610
Phone: (803) 777-0018
Email: cbnelson at geol.sc.edu
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EDUCATION:
Ph.D.

Marine Chemistry and Geochemistry, Massachusetts Institute of Technology/Woods Hole Oceanographic Institution Joint Program, Sep. 1993 - Feb. 1999
   Thesis Title: Phosphorus cycling in the Gulf of Maine: A Multi-tracer Approach
   Advisor: Dr. Ken Buesseler

B.S.Chemistry, University of Washington, 1987 - 1992
B.S.Chemical Oceanography, University of Washington, 1987 - 1992
PROFESSIONAL EXPERIENCE:
2010 - presentDirector, Marine Science Program, University of South Carolina
2010 - presentProfessor, Marine Science Program & Department of Earth & Ocean Sciences (formerly Geological Sciences), University of South Carolina
2006 - 2010Associate Professor with tenure, Marine Science Program & Department of Earth & Ocean Sciences (formerly Geological Sciences), University of South Carolina
2005 - 2008Director of Undergraduate Studies, Marine Science Program, University of South Carolina
2002 - 2006Assistant Professor, Marine Science Program & Department of Geological Sciences, University of South Carolina
1999 - 2005Associate Faculty, Department of Oceanography, University of Hawaii
1998 - 2001SOEST Young Investigator/Assistant Researcher, University of Hawaii
1998 - 2000NOAA/UCAR Postdoctoral Fellow in Climate and Global Change, University of Hawaii
1993 - 1998Graduate Research Assistant, Woods Hole Oceanographic Institution
1996Teaching Assistant, Woods Hole Oceanographic Institution
1991Summer Student Fellow, Woods Hole Oceanographic Institution
1989 - 1991Undergraduate Research Assistant, University of Washington
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HONORS AND AWARDS:
2010 Named one of USC's Rising Stars
2008 - 2009 Marie Curie Incoming International Fellow (Spain)
2008 - 2009 U.S. Fulbright Scholar (Spain)
2007 Freshman Advocate Award, USC
2006 Ocean Sciences Early Career Award, American Geophysical Union
2005 Faculty of the Year, National Society of Collegiate Scholars (NSCS)

2005

USC Mungo Undergraduate Teaching Award

2004

USC Mungo Undergraduate Teaching Award Finalist

2004

USC Mungo Graduate Teaching Award Nominee

2002

SCAMP Outstanding Research Mentor, University of South Carolina

1998 - 2001

SOEST Young Investigator, University of Hawaii

1998 - 2000

NOAA/UCAR Postdoctoral Fellow in Climate and Global Change

1996 - 1998

Environmental Protection Agency STAR Graduate Fellowship

1993 - 1996

Office of Naval Research Graduate Fellowship.

1993

NSF Minority Graduate Fellowship
Graduate Recruitment Fellowship, University of Washington

1991

Woods Hole Oceanographic Institution Summer Student Fellow

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MEMBERSHIP IN PROFESSIONAL SOCIETIES:
American Geophysical Union   Oceanography Society
Geological Society of America   American Chemical Society
Ecological Society of America  American Society of Limnology and Oceanography
South Carolina Marine Educators Association    SACNAS
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RESEARCH INTERESTS:
  • Global Climate Change in past and present day environments
  • Upper ocean biogeochemical cycling and export fluxes of nutrients, including organic carbon.
  • Water column advective and diffusive mixing.
  • Utilization of cosmogenic and Uranium series radioisotopes to study ecological processes.
  • Development of new analytical techniques.
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GRANTS RECEIVED:

Persistence and fate of domoic acid in the Santa Barbara Basin. NSF, 1/01/2009-12/31/2011, $440,929, PI: Benitez-Nelson, current.

Spatial and temporal variability in chlorophyll, primary production and export production in the Southern Ocean. NASA ROSES, 1/01/09 - 12/31/11, $300,788 (CBN portion) PI: Mitchell, co-PI: Benitez-Nelson, current

Collaborative Research: Nitrogen Fixation and its Coupling with Denitrification in the Eastern Tropical North Pacific.  NSF, 10/1/07–9/30/09, $257,612 (CBN Portion), PI: Prahl, co-PIs: Popp and Benitez-Nelson, current..

ScienceQuest: A South Carolina Geoscience Initiative.  National Science Foundation,  3/1/06–2/28/10, $153,641, PI: Benitez-Nelson, current.

Collaborative Research: Examining redox-sensitive phosphorus speciation and remineralization using X-ray and NMR spectroscopic method.  National Science Foundation,  9/1/05–8/31/08, $241,661 (CBN Portion), PI: Ingall, co-PI: Brandes and Benitez-Nelson.

Collaborative Research: Influences of Cyclonic Eddy Activity on Planktonic Food Web Dynamics and Carbon Export in the Lee of Hawaii.  National Science Foundation 9/1/04-6/30/07, $1,400,000, PI: Benitez-Nelson, co-PI: Bidigare, Dickey, Landry, Leonard.

Future applications of 234Th in Aquatic Ecosystems.  National Science Foundation 4/1/04-12/31/06, $78,520, PI: Benitez-Nelson.

Phosphorus speciation in Cariaco Basin using chemical separation and 31P NMR, USC Research & Productive Scholarship Grant 4/1/03-6/30/04, $13,000, PI: Benitez-Nelson.

Radioisotopic Measurements to Determine Plankton Nutrient Sources and Carbon Export at Station ALOHA. National Science Foundation 9/1/99 - 8/30/03, $219,999, PI: Benitez-Nelson.

Elucidation of Atmospheric Nitrogen and Phosphorus Deposition Rates and Pathways to the Hawaiian Islands. Andrew W. Mellon Foundation 1/1/00 - 12/31/02, $600,000. PI: Huebert, co-PI: Blomquist and Benitez-Nelson.

 

ScienceQuest Activities by SC 3rd-6th grade students

 

Cariaco Basin where we do much of our current phosphorus research

 

Satellite picture of an eddy in the lee of the Hawaiian Islands

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PUBLICATIONS IN REFEREED JOURNALS:

Maiti, K., C. R. Benitez-Nelson, K.O Buesseler (2010) Insights into particle formation and remineralization using the short-lived radionuclide, Thorium-234. Geophysical Research letters, accepted 56. 

Orchard, E.D., Benitez-Nelson, C.R., Pellechia, P.J., Lomas, M.W., Dyhrman, S.T. (2010) Polyphosphate in Trichodesmium from the low phosphorus Sargasso Sea. Limnology & Oceanography, accepted.

Muller-Karger, F. E., R. Varela, R. C. Thunell, M. I. Scranton, G. T. Taylor, Y. Astor, C. R. Benitez-Nelson, L. Lorenzoni, E. Tappa, M. A. Goñi, and C. Hu (2010) The CARIACO Oceanographic Time Series. In: Carbon and Nutrient Fluxes in Continental Margins: A Global Synthesis, Editors: K.-K. Liu, L. Atkinson, R. Quinones, and L. Talaue-McManus, Springer-Verlag, New York, pp. 454-463. 

Humphries, M., A. Kindness, W. N Ellery, J. C. Hughes, and C. R Benitez-Nelson (2010). Accumulation rate of clastic and chemical sedimentation and their role in the long-term development of the Mkuze River floodplain, South Africa, Geomorphology, 119, 88–96.

Maiti, K., J.L. Carroll and C.R. Benitez-Nelson (2010) Sedimentation and Particle Dynamics in the Marginal Ice Zone of the Barents Sea, Journal of Marine Systems, 79, 185-198

Lorenzoni, L, R. C. Thunell, C.R. Benitez-Nelson, D. Hollander, N. Martinez, E. Tappa, R. Varela, Y. Astor, and F. E. Muller-Karger (2009) The importance of subsurface nepheloid layers in transport and delivery of sediments to the Eastern Cariaco Basin, Venezuela, Deep-Sea Research I, 56, 2249-2262.

Dyhrman, S.T., C. R. Benitez-Nelson, E.O. Orchard, S.T. Haley, and P.J. Pellechia (2009). A microbial source of phosphonates in oligotrophic marine systems, Nature Geoscience, DOI: 10.1038/NGEO639.

Ranhofer, M. L., E. Lawrenz, J.L. Pinckney, C.R. Benitez-Nelson and T. L. Richardson (2009) Utilization of dissolved organic phosphorus by summer phytoplankton communities in Winyah Bay , South Carolina , U.S.A. , Estuaries, 32:943–957 DOI 10.1007/s12237-009-9180-x.

Muller-Karger, F. E., R. Varela, R. C. Thunell, M. I. Scranton, G. T. Taylor, Y. Astor, C. R. Benitez-Nelson, L. Lorenzoni, E. Tappa, M. A. Goñi, and C. Hu  (2009)  The CARIACO Oceanographic Time Series.  In: Carbon and Nutrient Fluxes in Continental Margins: A Global Synthesis, Editors: K.-K. Liu, L. Atkinson, R. Quinones, and L. Talaue-McManus, Springer-Verlag, New York, pages 454-463, in press.

Taylor, G.T., R. C. Thunell, R. Varela, C. R. Benitez-Nelson, M. I. Scranton (2009) Hydrolytic ectoenzyme activity associated with suspended and sinking organic particles within the anoxic Cariaco Basin.  Deep-Sea Research I, 56, 1266-1283.

Maiti, K., C.R. Benitez-Nelson, M.W. Lomas., J.W. Krause (2009) New and Export Production in the Subtropical Open Ocean Before Seasonal Stratification.   III. Comparison of Export Production by 234Th and Sediment Traps, Deep-Sea Research I, 56, 875-891.

Sekula-Wood, E, A. Schnetzer, C.R. Benitez-Nelson, C. Anderson , W. Berelson , M. Brzezinski , J. Burns , D. Caron , I. Cetinic , J. Ferry, E. Fitzpatrick, B. Jones, P. Miller, S. Morton , R. Schaffner, D. Siegel , and R. Thunell (2009) Rapid downward transport of the neurotoxin domoic acid in coastal waters, Nature Geoscience, 22 March 2009 | DOI: 10.1038/NGEO472.

Mahowald, N.M., T. D. Jickells, A.R. Baker, P. Artaxo, C.R. Benitez-Nelson, G. Bergametti, T. C. Bond, Y. Chen, D. D. Cohen, B. Herut, N. Kubilay, R. Losno, C. Luo, W. Maenhaut, K.A. McGee, G. S. Okin, R. L. Siefert, S. Tsukuda (2009) Global distribution of atmospheric phosphorus sources, concentrations and deposition rates, and anthropogenic impacts, Global Biogeochemical Cycles, 22, GB4026, doi:101029/2008GB003240.

Mahowald, N. M. , S. Engelstaedter, C. Luo , Andrea Sealy, P. Artaxo, C.R. Benitez-Nelson, S. Bonnet, Y. Chen, Patrick Y. Chuang, D.D. Cohen, F. Dulac, B. Herut, A. M. Johansen, N. Kubilay, R. Losno, W. Maenhaut, A. Paytan, J.M. Prospero, L.M. Shank, and R.L. Siefert (2009) Atmospheric iron deposition: Global distribution, variability, and human perturbations, Annual Reviews of Marine Sciences, 1, 245–78. 10.1146/annurev.marine.010908.163727.

Hannides, C.C.S., M. R. Landry, C. R. Benitez-Nelson, R. M. Styles, J. P. Montoya, D. M. Karl (2009) Export stoichiometry and migrant-mediated flux of phosphorus in the North Pacific Subtropical Gyre, Deep-Sea Research I, 56, 73-88.

Thunell, R.C., C. R. Benitez-Nelson, F. E. Muller-Karger, L. Lorenzoni, K Fanning, M. Scranton, R. Varela, Y. Astor (2008) The Si cycle in the Cariaco Basin, Venezuela: Seasonal Variability in Silicate Availability and the Si:C:N Composition of Sinking Particles. Global Biogeochemical Cycles, 22, GB4001, doi:10.1029/2007GB003096.

Benitez-Nelson, C.R., D. J. McGillicuddy (2008) Mesoscale Physical-Biological-Biogeochemical Linkages in the Open Ocean:  An Introduction to the results of the E-Flux and EDDIES Programs (Preface).  Deep-Sea Research II, 55, 1133-1138.

Chen, F-Z, W-J Cai, Y. Wang, Y. Rii, R. R. Bidigare, and C.R. Benitez-Nelson (2008) Biogeochemical cycling of the carbon dioxide system and net community production estimation in a cold-core cyclonic eddy in the lee of Hawaii, Deep-Sea Research II, 55, 1412-1425.

Maiti, K., C. R. Benitez-Nelson, Y. Rii, and R. Bidigare (2008) The influence of a mature cyclonic eddy on particle export. Deep-Sea Research II, 55, 1445-1460

Noble, A.E., M. A. Saito, K. Maiti, and C. R. Benitez-Nelson (2008) Cobalt, manganese, and iron near the Hawaiian Islands: A concentrating mechanism for cobalt within a cyclonic eddy and implications for the hybrid-type trace metals. Deep-Sea Research II, 55, 1473-1490.

Mahaffey, C., C. R. Benitez-Nelson, R. R. Bidigare, and D. Karl (2008) Nitrogen dynamics within wind-driven eddies.  Deep-Sea Research II, 55, 1398-1411.

Verdeny, E., P. Masqué, K. Maiti, J. Garcia-Orellana, J. M. Bruach, and C. R. Benitez-Nelson (2008) Particle Export within cyclonic Hawaiian lee eddies derived from 210Pb-210Po disequilibria. Deep-Sea Research II, 55, 1461-1472.

Diaz, J., E. Ingall, C. R.  Benitez-Nelson, D. Paterson, M. de Jonge, J. A. Brandes (2008) Marine Polyphosphate: A Key Player in Geologic Phosphorus Sequestration. Science, 320, 652-655.

Benitez-Nelson, C. R. et al. (+ 23 authors) (2007)  Mesoscale eddies drive increased silica export in the subtropical Pacific Ocean. Science, 312, 1017-1021.

Chen, F-Z, W-J Cai, C.R. Benitez-Nelson, and Y. Wang (2007) Sea surface pCO2-SST relationships across a cold-core cyclonic eddy: Implications for understanding regional variability and air-sea gas exchange, Geophysical Research Letters, 34, doi:10.1029/2006GL028058.

Benitez-Nelson, C. R., L. O. Madden, R. M. Styles, R. C. Thunell, and Y. Astor (2007) Inorganic and organic sinking particulate phosphorus fluxes across the oxic/anoxic water column of Cariaco Basin, Venezuela, Marine Chemistry, 105, 90-100.

Thunell, R.C., C. R. Benitez-Nelson, R. Varela, Y. Astor and F. E. Muller-Karger (2007) Particulate Organic Carbon Fluxes Along Upwelling-Dominated Continental Margins: Rates and Mechanisms.  Global Biogeochemical Cycles, 21, GB1022 doi:10.1029/2006GB002793.

Benitez-Nelson, C. R. and Willard S. Moore (2006) Future applications of 234Th in aquatic ecosystems (Editorial). Marine Chemistry, 100, 163-165.

Waples, J., C. R. Benitez-Nelson, N. Savoye, M. Rutgers van der Loeff, M. Baskaran and Ö. Gustafsson (2006) An Introduction to the Application and Future Use of 234Th in Aquatic Systems. Marine Chemistry, 100, 166-189.

Savoye, N.,  C. R. Benitez-Nelson, A. B. Burd, J. K. Cochran, M. Charette, K. O. Buesseler, G. Jackson, M. Roy-Barman, S. Schmidt and M. Elskens (2006) 234Th sorption and export models in the water column: a review.  Marine Chemistry, 100, 234-249.

Buesseler, K. O., C. R. Benitez-Nelson, S. B. Moran, A. Burd, M. Charette, J. K. Cochran, L. Coppola, N. S. Fisher, S. W. Fowler, W. D. Gardner, L. D. Guo, O. Gustafsson, C. Lamborg, P. Masque, J. C. Miquel, U. Passow, P. H. Santschi, N. Savoye, G. Stewart, and T. Trull (2006) An assessment of particulate organic carbon to thorium-234 ratios in the ocean and their impact on the application of 234Th as a POC flux proxy.  Marine Chemistry, 100, 213-233.

Santschi, P.H. J.W. Murray, M. Baskaran, C.R. Benitez-Nelson, L. Guo, C-C. Hung, C. Lamborg, S. B. Moran, U. Passow, and M. Roy-Barman (2006) Thorium speciation in seawater. Marine Chemistry, 100, 250-268.

Rutgers van der Loeff, M., M. M. Sarin, M. Baskaran, C. R. Benitez-Nelson, K. Buesseler, M. Charette, M. Dai, Ö. Gustafsson, P. Masque, P. Morris, K. Orlandini, A. Rodriguez y Baena, N. Savoye, S. Schmidt, R. Turnewitsch, I. Vöge, and J. Waples (2006) A review of present techniques and methodological advances in analyzing 234Th in aquatic systems. Marine Chemistry, 100, 190-212.

Cade-Menun, B., C. R. Benitez-Nelson, P. Pellechia, and A. Paytan, (2005) Refining phosphorus-31 nuclear magnetic resonance spectroscopy for marine sediment trap samples: storage conditions and extraction recovery. Marine Chemistry, 97, 293-306.

O’Neill, L.O., C. R. Benitez-Nelson, R. M. Styles, E. Tappa, and R. C. Thunell (2005) Diagenetic effects on particulate phosphorus samples collected using formalin poisoned sediment traps. Limnology and Oceanography Methods, 3, 326-337.

Benitez-Nelson, C. R. and Th-group (2004) Future Applications of 234Th in Aquatic Ecosystems (FATE).  EOS, Transactions, American Geophysical Union, Vol. 85, No. 45, 471.

Benitez-Nelson, C. R., L. P. O’Neill, L. Kolowith, P. Pellechia, and R. C. Thunell (2004) Phosphonates and particulate organic phosphorus cycling in an anoxic marine basin. Limnology and Oceanography, 49(5), 1593-1604.

Smoak, D., C. R. Benitez-Nelson, W. S. Moore, R. C. Thunell, Y. Astor and F. Muller-Karger (2004) Radionuclide fluxes and particle scavenging in Cariaco Basin.  Continental Shelf Research, 24, 1451-1463.

Benitez-Nelson, C. R. and M. A. Charette (2004) Uncertainty versus Variability in Upper Ocean Carbon Flux Estimates. Limnology and Oceanography, 49(4), 1218-1220.

Bidigare, R. R., C. R. Benitez-Nelson, C. L. Leonard, M. P. Seki, M. L. Parsons, R. D. Vaillancourt, J. Marra and P. Quay (2003) Influence of a cyclonic eddy on photosynthesis, microheterotroph abundance and carbon export in the lee of Hawaii. Geophysical Research Letters, 30, 10.1029/2002GL016393.

 

Benitez-Nelson, C. R., S. M. Vink, J. H. Carrillo, and B. Huebert (2003) Volcanically influenced iron and aluminum cloud water deposition to Hawaii. Atmospheric Environment, 37, 535-544.

 

Sansone, F. J., C. R. Benitez-Nelson, E. H. DeCarlo, J. A. Resing, S. M. Vink, J. H. Heath, and B. J. Huebert (2002) Geochemistry of Atmospheric Aerosols Generated from Lava-Seawater Interactions. Geophysical Research Letters, 29, 10.1029/2001GL013882.

 

Benitez-Nelson, C. R. and D. M. Karl (2002) Phosphorus cycling in the North Pacific Subtropical Gyre using cosmogenic 32P and 33P. Limnology and Oceanography, 47, 762-770.

 

Benitez-Nelson, C. R., K. O. Buesseler, D. M. Karl, and J. E. Andrews (2001) A time-series study of particulate matter export in the North Pacific Subtropical Gyre based on 234Th:238U disequilibrium. Deep-Sea Research I, 48, 2595-2611.

 

Benitez-Nelson, C. R., K. O. Buesseler, M. Rutgers van der Loeff, J. E. Andrews, L. Ball, G. Crossin, and M. A. Charette (2001) Testing a new small volume technique for determining 234Th in seawater. J. Radioanal and Nuc. Chem., 248, 795-799.

 

Dai, M. H. and C. R. Benitez-Nelson (2001) Colloidal Organic Carbon and 234Th in the Gulf of Maine. Mar. Chem., 74, 181-196.

 

Buesseler, K. O., C. R. Benitez-Nelson, M. Rutgers van der Loeff, J. E. Andrews, L. Ball, G. Crossin, and M. A. Charette (2001) A comparison of methods with a new small-volume technique for thorium-234 in seawater. Mar. Chem., 74, 15-28.

 

Benitez-Nelson, C.R. (2000) The Biogeochemical Cycling of Phosphorus in Marine Systems. Earth Sci. Rev., 51, 109-135.

 

Benitez-Nelson, C.R. (2000) Phosphorus cycling in coastal marine ecosystems. Investigacion Y Ciencia (Scientific American-Spanish language version), 5, 36-38.

 

Benitez-Nelson, C.R., K. O. Buesseler and G. Crossin (2000) Upper ocean carbon export, eddy diffusivity and horizontal transport in the southwestern Gulf of Maine. Cont. Shelf Res., 20, 707-736.

 

Benitez-Nelson, C.R. (2000) Phosphorus in the upper ocean. Ciencia al Dia Internacional, 3, 1.

 

Benitez-Nelson, C.R. and K. O. Buesseler (1999) 32P, 33P, 7Be and 210Pb: Atmospheric fluxes and utility in tracing stratosphere/troposphere exchange. J. of Geophys. Res., 104, 11745-11754.

 

Benitez-Nelson, C.R. and K. O. Buesseler (1999) Temporal variability of inorganic and organic phosphorus turnover rates in the coastal ocean. Nature, 398, 502-505.

 

Buesseler, K. O., L. Ball, J. Andrews, C. Benitez-Nelson, R. Belastock, F. Chai, and Y.Chao (1998) Upper ocean export of particulate organic carbon in the Arabian Sea derived from Thorium-234. Deep-Sea Res. II, Special Arabian Sea Issue, 45, 2461-2488.

 

Benitez-Nelson, C.R. and K. O. Buesseler (1998) Measurement of cosmogenic 32P and 33P activities in rainwater and seawater. Anal. Chem., 70, 64-72.

 

Buesseler, K. O. and C. R. Benitez (1994) Determination of mass accumulation rates and sediment inventories in the deep Black Sea.. Deep-Sea Res. II, 41, 1605-1615.

 

BOOKS

Hardee, M. L. and C.R. Benitez-Nelson (2008) Introduction to Oceanography Lab Manual: MSCI 102, Kendall-Hunt Publishing, 216 pp. ISBN:978-0-7575-5027-0.

Hardee, M. L. and C.R. Benitez-Nelson (2004) Introduction to Oceanography Lab Manual: MSCI 101, Kendall-Hunt Publishing, 210 pp. ISBN:978-0-7575-1052-6.

 
PUBLISHED ABSTRACTS:

Sekula-Wood, E., Benitez-Nelson, CR, Bograd, S and Anderson, C. (2010)  Long-Term Trends in Regional Domoic Acid Events Associated with Large-Scale Variability in the California Current System. 14th International Conference on Harmful Algae, Hersonissos-Crete, Greece on 1-5 November 2010.

Pal, S., Benitez-Nelson, C. R., Emerson, S. R.,  Murray, J. W., Kavanaugh, M. T. (2010) Particulate Carbon Export in the North Pacific Ocean Using Th-234-U-238 Disequilibrium.  2010 Ocean Sciences Meeting, Portland Oregon, CO35B-10

White, A. Benitez-Nelson, C. R., Foster; R.A., Popp, B. N., Prahl, F. G. (2010) Nitrogen Fixation in the Gulf of California and the Eastern Tropical North Pacific: Interannual Variability of Diazotrophic Productivity, Community Composition and Potentially Limiting Factors. 2010 Ocean Sciences Meeting, Portland Oregon, IT11A-07

Verdeny, E., Benitez-Nelson, C.R., Masque, P., Puigcorbé, V., White, A., Prahl, F.G., Popp, P.N., Foster, R.A., Arthur, K. (2010) The role of community structure and nitrogen fixation on particle export in the Gulf of California and the eastern tropical North Pacific Ocean.  2010 Ocean Sciences Meeting, Portland Oregon, IT11A-08

 Benitez-Nelson, C.R. (2010) Understanding marine phosphorus composition and the potential impact on particle export in oligotrophic regions (Invited).  Invited 2010 Ocean Sciences Meeting, Portland Oregon, IT13A-01.

Anderson, C., Kudela, R. M, Benitez-Nelson, C.R., Sekula-Wood, E., Chao, Y., Siegel, D. A., Washburn, L., Langlois, G. (2010) Testing Toxin Prediction Models in a California HAB Hotspot.  2010 Ocean Sciences Meeting, Portland Oregon, IT35G-05.

Dyhrman, S., Benitez-Nelson, C.R., Haley, S., Orchard, S., Pellechia, P. (2010) Microbial production of phosphonate in marine systems. 2010 Ocean Sciences Meeting, Portland Oregon. IT14A-06

Maiti, K., Buesseler, K.O., Benitez-Nelson, CR.., Cochran, K, Dai, M, Dehairs, F., Masque, P., Miller, LA, Bradley, M., Morris. PJ, Miquel, JC, Peine, F, Planchon, F, Rutgers van der Loeff, M, Santschi, PH Turnewitsch, T, Waples, JT (2010) Total and Particulate Thorium-234 Results From GEOTRACES Intercalibration Cruises. 2010 Ocean Sciences Meeting, Portland Oregon, CO23A-02.

Sekula-Wood, E., Benitez-Nelson, C.R., Anderson, C, Schnetzer, A., Guillocheau, N, Morton, S., Siegel, D. Thunell, R. (2009) A Historical Record of Vertical Domoic Acid Fluxes from Santa Barbara Basin (CA).  November, The Fifth Symposium on Harmful Algae, Ocean Shores, WA.

Casacuberta, N., Masque, P., Garcia-Orellana, J., Benitez-Nelson, C.R., Anguita, M., Gasa, J., Garcia-Tenorio, R. (2009) 210Pb and 210Po biokinetics in chicken and the radiological implications to population. International Topical Conference on Po and Radioactive Pb Isotopes, October, Seville, Spain

Stukel, M., M. Landry, and C.R. Benitez-Nelson (2009) Trophic Cycling and Carbon Export in the California Current Ecosystem.  2009 LTER All Scientists Meeting, 14-16 September, Estes, Colorado.

Maiti, K., Buesseler, K.O., Benitez-Nelson, C.R., Lamborg, C.H., Owens, S. (2009) 234Th Excess and Particle Remineralisation below the Euphotic zone.  2009 AGU Chapman Conference on the Biological Pump in the Oceans. September, Brockenhurst, Hampshire, England.

Benitez-Nelson, C.R., Verdeny, E., Masque, P., White, A. Popp, B., Prahl, F., Foster, R. (2009) Investigating the Role of Nitrogen Fixation in Exporting Particulate Carbon to Depth.  2009 AGU Chapman Conference on the Biological Pump in the Oceans. September, Brockenhurst, Hampshire, England.

Wejnert, K.E., Thunell, R.C., Benitez-Nelson, C.R. (2009)  P/Ca in planktonic foraminifera as a new proxy for marine PO4: Results from the Cariaco Basin. 2009 Goldschmidt Conference, June, Davos, Switzerland.

Silver, M.W., Bargu, S.B., Benitez-Nelson, C.R., Coale, S. L. Roberts, K.J., Garcia, A.C. (2009) Domoic acid toxins in the oceanic Pacific: Natural components and enhanced presence in iron fertilized communities. 2009 ASLO Winter Meeting, Nice, France.

Bargu, S.B., Silver, M.W., Garcia, A.C. Coale, S. L. Roberts, K.J. Benitez-Nelson, C.R. (2009) Psuedo-nitzschia and domoic acid in naturally iron-riched  and iron-poor areas of the Subarctic Pacific. 2009 ASLO Winter Meeting, Nice, France.

Benitez-Nelson, C R (2009) Short-lived radionuclides as tracers of particle flux in the oceans: A look towards the future. Invited 2009 ASLO Winter Meeting, Nice, France.

Villa, M, Puigcorbe, V; Verdeny, E, Garcia-Solsona, E, Bruach, J M; Garcia-Orellana, J, Benitez-Nelson, C R, Masque, P (2009) Testing the potential of 90Y /90 Sr Disquilibria in estimating oceanic POC export over daily timescales. 2009 ASLO Winter Meeting, Nice, France.

Verdeny, E, Masqué, P, Benitez-Nelson, C R, Garcia-Orellana, J, Villa, M, Miquel, J, Stewart, G, Alonso-González, I, Baltar, F, Arístegui, J (2009) Examining the influence of mesoscale eddies and atmospheric deposition on particle export fluxes using 234Th and 210Po. 2009 ASLO Winter Meeting, Nice, France.

Mahowald, NM, Jickells, TD, Baker, AR, Artaxo, P, Benitez-Nelson, C, Bergametti, G, Bond, T, Chen, Y, Cohen, DD, Herut, B, Kubilay, N, Losno, R, Maenhaut, W A, McGee, K, Okin, G, Siefert, R, Tsukuda, S, Luo, C.  Human Pertubation of Atmospheric Phosphorus (2008) Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract OS14B-08.

Thunell, R C, Benitez-Nelson, C R,  Muller-Karger, F, Lorenzoni, L, Fanning, K, Scranton, M, Varela, R, Astor, Y, (2008) Silicon cycling in the Cariaco Basin, Venezuela: Seasonal variability in silicate availability  and the SI:C:N composition of sinking particles. 2008 Ocean Sciences Meeting, Orlando Fl.

Richardson, T L, Ranhofer, M L, Benitez-Nelson, C R (2008) Taxon-specific dissolved organic phosphorus utilization by estuarine phytoplankton determined using an enzyme-labeled fluorescence approach.. 2008 Ocean Sciences Meeting, Orlando Fl.

Verdeny, E, Masque, P, Garcia-Orellana, J, Benitez-Nelson, C R, Maiti, K, Buesseler, K O, (2008) Examining particle flux within mesoscale eddies using 210Pb-210Pb disequilibrium. 2008 Ocean Sciences Meeting, Orlando Fl.

DuBois, S L, Benitez-Nelson, C R, Berelson, W, Hammond, D; Paneva, R. (2008) Characterization of inorganic and organic phosphorus species in the San Pedro Basin, California.. 2008 Ocean Sciences Meeting, Orlando Fl.

Herron, S E, Benitez-Nelson, CR, Thunell, R. (2008) Insights into sediment trap fluxes:  Possible underestimation of opal fluxes in the Santa Barbara and Cariaco Basins. 2008 Ocean Sciences Meeting, Orlando Fl.

Stukel, M R, Landry, M R, Benitez-Nelson, C R, Goericke, R (2008) Carbon export and the fate of primary productivity in the California Coastal Current Ecosystem. 2008 Ocean Sciences Meeting, Orlando Fl.

Diaz, J M, Ingall, E I, Benitez-Nelson, C R, Brandes, J A (2008) A Novel mechanism for marine phosphorus sequestration via burial and transformation or diatom-derived polyphosphate in sediments. 2008 Ocean Sciences Meeting, Orlando Fl.

Lyons, G C; Benitez-Nelson, C R; Thunell, R; Phosphorus composition of sinking particles form Guaymas Basin, Gulf of California. 2008 Ocean Sciences Meeting, Orlando Fl.

Maiti, K., Benitez-Nelson, C.R., M.W. Lomas, and J. W. Krause (2007) Estimates of Export production in Sargasso Sea During Winter Storms Prior to Seasonal Stratification, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract OS11B-0501.

Lorenzoni, L. Muller-Karger, F. E., Thunell, R.C., Tappa, E., Benitez-Nelson, C.R., Hollander, D., Varela, R., Astor, Y., and C. Hu (2007) The CARIACO Time Series: Carbon fluxes in a tropical, continental upwelling margin, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract OS43C-02.

Muller-Karger, F., Varela, R., Thunell, R. C., Scranton, M. I.; Taylor, G. T., Astor, Y. M., Benitez-Nelson, C. R., Lorenzoni, L., Tappa, E. J., Goni, M. A., Rueda, D. T., and C. Hu (2007) Importance of Bottom Nephelolid Layers on the Transport and Delivery of Sediment to the Eastern Cariaco Basin, Venezuela, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract OS43C-08.

Lyons, G., Benitez-Nelson, C.R., Thunell, R. (2007) Phosphorus Composition of Sinking Particles from Guaymas Basin, Gulf of California, Estuarine Research Foundation Conference, 4-8 November, 2007, Providence, RI.

Sekula, E., Benitez-Nelson, C.R., Thunell, R., Morton, S., Burns, J., Ferry, J. (2007) Persistence of the Marine Biotoxin Domoic Acid at Depth in the Santa Barbara Basin, California, Estuarine Research Foundation Conference, 4-8 November, 2007, Providence, RI.

 

Lorenzoni L., Muller-Karger F.E., Thunell R.C., Tappa E., Benitez-Nelson C.R., Hollander D., Varela R., Astor Y. and Hu C. (2007) Influence of small scale rivers on the transport and delivery of sediment to the eastern Cariaco Basin, Venezuela. Joint IMBER/LOICZ Continental Margins Open Science Conference 17-21 Sept. 2007, Shanghai , China .

Chen, F-Z, W-J Cai, Y. Wang, and C.R. Benitez-Nelson (2007) Sea surface pCO2-SST relationships, biogeochemical cycling of inorganic Carbon and net community production estimation in a cold-core cyclonic eddy in the lee of the Hawaiian Islands, SOLAS Open Science Conference 5-9 March 2007, Xiamen, China.

Maiti , K. , Benitez-Nelson, C.R., Rii, Y., Bidigare, R. (2007) Extensive cyclonic particle remineralization within highly productive cold-core cyclonic eddies in the lee of the Hawaiian Islands (Abstract ID: 357). 2007 ASLO Fall Meeting, 4-9 February Santa Fe, NM.

Benitez-Nelson, C.R., Sannigrahi, P., Pellechia, P., Thunell, R.C. (2007) Particulate phosphorus composition in the Cariaco Basin, Insights from Phosphorus and Carbon NMR (Abstract ID: 951). 2007 ASLO Fall Meeting, 4-9 February Santa Fe, NM.

Brandes, J.A., Ingall, E ; Benitez-Nelson, C.R., Paterson, D., de Jonge, M., Northrup, P. (2007) Nanoscale distribution and speciation of phosphorus within Cariaco Basin sinking particulates. (Abstract ID: 224). 2007 ASLO Fall Meeting, 4-9 February Santa Fe, NM.

Sekula, E.N., Benitez-Nelson, C.R., Thunell, R., Tappa, E., Styles, R.M. (2007) Phosphorus cycling in a suboxic basin. (Abstract ID: 541) 2007 ASLO Fall Meeting, 4-9 February Santa Fe, NM.

DuBois, S.L., Benitez-Nelson, C.R., Paneva, R., Berelson, W., Hammond, D., Paukert, A. (2007) Organic and inorganic phosphorus composition within sediments of San Pedro sediment traps (Abstract ID: 650) 2007 ASLO Fall Meeting, 4-9 February Santa Fe, NM.

Lyons, G.C., Benitez-Nelson, C.R., Thunell, R. (2007) Phosphorus composition of sinking particulates from Guaymus Basin, California. (Abstract ID: 861) 2007 ASLO Fall Meeting, 4-9 February Santa Fe, NM.

Orchard, E.D., Ammerman, J.W., Benitez-Nelson, C.R., Lomas, M.W., Dyhrman, S.T. (2007) Polyphosphate Metabolism in the Marine Cyanobacteria Trichodemsium and Crocosphaera. (Abstract ID: XXX) 2007 ASLO Fall Meeting, 4-9 February Santa Fe, NM.

Phillips, K., C. R. Benitez-Nelson, M. Henry (2006)  ScienceQuest:  An After-School Science Experience, SMEA-GAME Joint Conference, 20-22 October, Seabrook Island, SC.

Stukel, M., M. Landry, and C.R. Benitez-Nelson (2006) Carbon export in the California current ecosystem.  2006 LTER All Scientists Meeting, 20-23 September, Estes, Colorado.

Maiti, K., C. R. Benitez-Nelson, J.L. Carroll (2006).  Particle dynamics at the Barents Sea ice-margin.  2006 GSA Annual Meeting 22–25 October, Philadelphia, PA Vol. 38.

Ranhofer, M.L., C.R. Benitez-Nelson, R. Thunell, R. Styles.  Distribution, Fluxes, and Potential Sources of Sinking Particulate Phosphorus in the Cariaco Basin, Venezuela.  2006 ASLO Summer Meeting.

Noble, A.E., K. Maiti, C. R. Benitez-Nelson, M. A. Saito.  Cobalt, Manganese, Cadmium and Iron Among the Hawaiian Islands: The Influence of Cyclonic Eddies and Hydrothermal Signals. 2006 ASLO Summer Meeting.

Blake, D., C. R. Benitez-Nelson, J. Waples and K. Buesseler. A 12 Minute History of Thorium-234, 2006 AGU Ocean Sciences Meeting. Eos Trans. AGU, 87(36) Ocean Sci. Meet. Suppl., Abstract OS13A-02

Carroll, J, K. Maiti and C. R. Benitez-Nelson.  Seafloor Sediment Dynamics within the Barents Sea Marginal ice Zone.  2006 AGU Ocean Sciences Meeting. Eos Trans. AGU, 87(36) Ocean Sci. Meet. Suppl., Abstract OS44M-03

Chen, F., W. Cai, C.R. Benitez-Nelson and Y. Wang.  Surface Water CO2 Parameters and Air-sea Exchange Influenced By A Cold Cyclonic Eddy In The Lee Of Hawaii. 2006 AGU Ocean Sciences Meeting. Eos Trans. AGU, 87(36) Ocean Sci. Meet. Suppl., Abstract OS16D-03

Albritton, D., C. R. Benitez-Nelson and J. R. Carpenter. ScienceQuest: Increasing Diversity in the Geosciences Through Hands on Learning. 2006 AGU Ocean Sciences Meeting. Eos Trans. AGU, 87(36) Ocean Sci. Meet. Suppl., Abstract OS33E-04

Verdeny, E., P. Masque, J. Garcia-Orellana, J. Bruach-Menchen, C.R. Benitez-Nelson and K. Maiti 210Pb-210Po Derived Organic Carbon Export within Cold-Core Cyclonic Eddies in the lee of Hawaii. 2006 AGU Ocean Sciences Meeting. Eos Trans. AGU, 87(36) Ocean Sci. Meet. Suppl., Abstract OS16D-06

Maiti, K, Y. Rii, C. R. Benitez-Nelson and R. Bidigare.   Eddy Induced Biological Export in the lee of Hawaii. 2006 AGU Ocean Sciences Meeting. Eos Trans. AGU, 87(36) Ocean Sci. Meet. Suppl., Abstract OS12H-04

Lyons, G., R. M. Styles, C.R. Benitez-Nelson, R. C. Thunell and L. Lorenzoni.  Composition of Riverine Derived Particulate Phosphorus in the Cariaco Basin, Venezuela. 2006 AGU Ocean Sciences Meeting. Eos Trans. AGU, 87(36) Ocean Sci. Meet. Suppl., Abstract OS35C-01

Mahaffey, C., C. R. Benitez-Nelson, Y. Rii, R. Bidigare and D. M. Karl.  Nitrogen dynamics within Hawaiian Lee Eddies: insights using a stable nitrogen isotope approach. 2006 AGU Ocean Sciences Meeting. Eos Trans. AGU, 87(36) Ocean Sci. Meet. Suppl., Abstract OS16D-05

Thunell, R., C.R. Benitez-Nelson, F. Muller-Karger, L. Lorenzoni, R. Varela and Y. Astor. Particulate Organic Carbon Cycling in an Upwelling Dominated Continental Margin: Results from the Cariaco Basin Ocean Time Series. 2006 AGU Ocean Sciences Meeting. Eos Trans. AGU, 87(36) Ocean Sci. Meet. Suppl., Abstract OS32D-05

Benitez-Nelson, C. R., R. Bidigare, T. Dickey, M. Landry and C. Leonard. E-Flux: Influences of Cyclonic Eddy Activity on Planktonic Food Web Dynamics and Carbon Export in the lee of Hawaii. 2006 AGU Ocean Sciences Meeting. Eos Trans. AGU, 87(36) Ocean Sci. Meet. Suppl., Abstract OS11G-02

O’Neill, L. P. and C. R. Benitez-Nelson. Sediment trap inorganic and organic phosphorus composition across an oxic-anoxic interface, ASLO Summer Research Conference, June 2004.

Ingall, E, J. Brandes, D. Paterson, P. Northrup, C. R. Benitez-Nelson. Examination of marine organic matter using x-ray microscopy and phosphorus x-ray absorption near edge structure (P-XANES) spectroscopy.  ASLO Summer Research Conference, June 2004.

Pellechia, P., C. R. Benitez-Nelson, C. R., L. Kolowith, and R. C. Thunell.  The use of solid state 31P NMR and bloch decays to examine phosphorus speciation in an anoxic marine basin. 2004 45th ENC Experimental Nuclear Magnetic Resonance Conference, Pacific Grove, CA, April 18-24.

Benitez-Nelson, C. R., L.O. O’Neill, P. Pellechia, and R. C. Thunell.  Phosphorus speciation under anoxic conditions:  Insights from the Cariaco Basin. 2004 ASLO/TOS Ocean Research Conference, Honolulu, HI, Feb. 16-20, published program, p. 16.

Sheridan, C. C., M. R. Landry, C.R. Benitez-Nelson, and J. P. Montoya.  A synthesis of Hawaii Ocean Time-series (HOT) mesozooplankton data from 1994-2002: Temporal variability in biomass and contribution to elemental cycles.  JGOFS Open Science Conference, May 5-9, 2003. Washington D.C.

Benitez-Nelson, C. R., T. K. Gregory, D. M. Karl (2002).  Upper ocean and mesopelagic particle export at Station ALOHA in the NPSG derived from 234Th.  2002 AGU Fall Meeting, EOS, 83(47), OS21B-0200.

Bidigare, R. R., M. P. Seki, C. L. Leonard, C. Benitez-Nelson, R. D. Vaillancourt and J. J. Polovina (2001). Influence of cyclonic eddies on new production rates in the vicinity of the Hawaiian Islands. North Pacific Marine Science Organization (PICES) 10th Annual Meeting, 7-17 October 2001 (Victoria, INVITED).

 

Sansone, F. J., C. R. Benitez-Nelson, E. H. DeCarlo, Z. Liangzhoung, J. A. Heath and B. J. Huebert (2000). Chemical composition of the steam plume resulting from the ocean lava entry at Kilauea Volcano, Hawaii. 2000 AGU Fall Meeting, EOS, 81(48), V61B-02.

 

Benitez-Nelson, C. R., A. J. Cundiff, J. A. Heath and B. J. Huebert (2000). Atmospheric P deposition to the Hawaiian Island Chain. 2000 AGU Fall Meeting, EOS, 81(48), B51A-05.

 

Benitez-Nelson, C. R., and D. M. Karl (2000). Phosphorus cycling in the North Pacific Gyre. 2000 AGU Fall Meeting, EOS, 81(48), B52D-07 (INVITED).

 

Benitez-Nelson, C. R., D. M. Karl and K. O. Buesseler (2000). 234Th derived carbon export at Station ALOHA. 2000 AGU Ocean Sciences meeting, San Antonio, TX, Jan. 24-28, published program, p. OS103.

 

Benitez-Nelson, C. R. and K. O. Buesseler (1998). Upper ocean phosphorus cycling in the Gulf of Maine: Utilization of cosmogenic 32P and 33P. 1998 AGU Ocean Sciences meeting, San Diego, CA, Feb. 9-13, published program, p. OS81.

 

Benitez-Nelson, C. R. and K. O. Buesseler (1997). Utilization of 32P, 33P, 7Be, and 210Pb as tracers of tropospheric aerosol residence times and stratospheric exchange. 1997 AGU Fall Meeting, EOS, 78(46), 108.

 

Buesseler, K. O., L. Ball, J. Andrews, C. Benitez-Nelson and R. Belastock (1996). Upper ocean particulate export in the Arabian Sea. EOS, 77(46), 396.

 

Benitez-Nelson, C. R. and K. O. Buesseler (1996). Phosphorus cycling and export production in the Gulf of Maine: A multi-tracer approach. Gulf of Maine Ecosystem Dynamics Meeting, New Brunswick, Canada, Sept. 16-20, published program.

 

Buesseler, K. O., J. E. Andrews, L. A. Ball, R. A. Belastock, and C.R. Benitez-Nelson (1996). Particle export fields in the Arabian Sea derived from 234Th: 238U disequilibria. 1996 AGU Ocean Sciences meeting, San Diego, CA, Feb. 12-16, published program, p. OS23.

 

Buesseler, K. O., S. B. Moran, R. L. Edwards, J. A. Hoff, M. C. Hartman, J. E. Andrews, R. A. Belastock, and C. R. Benitez (1994). Residence time of colloids and particles along the shelf and slope of the NE USA derived from thorium isotopes. EOS, 75(44), 311.

 

Benitez, C. and K. O. Buesseler (1991). Determination of the sedimentation rate in the Black Sea over the last century using radionuclides. EOS, 72(51), 27.

 

<% ElseIf strView = "talks" or strView = "" Then %>
INVITED PAPERS, SEMINARS, SYMPOSIA and WORKSHOPS:

Invited Speaker, “Understanding the Toxin Express: A Historical Record of Rapid Downward Transport of Domoic Acid in Coastal Waters,” University of Texas, February 2010, Austin, Texas.

Invited Speaker, joint with Ken Buesseler, “What goes up must come down... but when or where?” 2009 AGU Chapman Conference on the Biological Pump in the Oceans. September 2009, Brockenhurst, Hampshire, England.

Invited Speaker, “The role of mesoscale eddies on particle export” Institut de Ciències del Mar, CSIC, July 2009 Barcelona, Spain.

Invited Speaker, “Recent advances in understanding the biogeochemical cycling of phosphorus in the oceans,” National Oceanography Centre, University of Southampton, March 2009 Southampton, England.

Invited Speaker, “The biogeochemical cycling of phosphorus in modern day marine systems”, Ocean and Climate Processes Research Group (GEPOC) Seminar, Universitat Autònoma de Barcelona, February 2009 Barcelona, Spain.

Invited Tutorial, “Short-lived radionuclides as tracers of particle flux in the oceans: A look towards the future.” ASLO Winter Meeting, January 2009, Nice, France.

Invited Speaker, “Climate Change and the Oceans, “USC’s Citizen’s School of the Environment, April 2008, Columbia, SC.

Invited Speaker, “Persistence of the Marine Biotoxin Domoic Acid at Depth in the Santa Barbara Basin, California, ” Regional Workshop for Harmful Algal Blooms in California Coastal Waters, April 2008, Costa Mesa, CA.

Invited Speaker, “Phosphorus Cycling in the Coastal Zone,” Distinguished Role Model Lecture, Bodega Marine Laboratory, August 2007, Bodega Bay, CA.

Invited Speaker, “Water Column Phosphorus Cycling in Continental Margins:  Insights from sequential extraction and 31P NMR,” Duke University, February 2007, Durham, NC.

Invited Speaker, “Phosphorus Cycling in a Continental Margin Ecosystem,” University of Georgia, November 2006, Athens, GA.

Invited Speaker, “Particulate phosphorus dynamics in coastal environments,” Society for Advancement of Chicanos and Native Americans in Science (SACNAS) National Conference, October 2006, Tampa, FL.

Invited Speaker, “Particulate Phosphorus Cycling in Continental Margins,” University of Vermont, September 2006, Burlington, VT.

Invited Speaker, Doctoral and Master’s Commencement Address, May 2006, USC.

Invited Speaker, “Open Ocean Eddies Bring Life to the Desert,” Eastern Carolina University, April 2006, Greenville, NC.

Invited Speaker, “Open Ocean Eddies Bring Life to the Desert,” Louisiana State University, March 2006, Baton Rouge, LA.

Invited Speaker, “Eddy Biogeochemistry in the lee of the Hawaiian Islands,” Skidaway Institute of Oceanography, March 2006, Savannah, GA.

Invited Lecture, “The Day After Tomorrow: Global Climate Change over the next century?,” Last Lecture Series, Carolina Scholars Association, Oct. 2005, USC.

Invited Speaker, “Phosphorus biogeochemistry and export in marine systems,” Hall-Bonner Lecture Series (Joint between Hampton University, Virginia Institute of Marine Sciences, and Old Dominion) April 2005, Hampton, VA.

Invited Speaker, “The ocean’s role in global climate change,” AGU Lecturer, National Science Teacher’s Association, April 2004, Atlanta GA.

Invited Speaker, “Nutrient Cycling in the Ocean: Why is it important,” Celebrating women in science in SC, University of South Carolina, March 2004, Columbia, SC.

Invited Speaker, “Particulate Phosphorus cycling across an oxic/anoxic interface: Implications for past, present, and future changes in nutrient limitation,” Stanford University, March 2004, Stanford, CA.

Invited Speaker, “Particulate Phosphorus cycling across an oxic/anoxic interface: Implications for past, present, and future changes in nutrient limitation,” USGS Water Resources Division, March 2004, Menlo Park, CA.

Invited Speaker, “Phosphorus speciation in the Cariaco Basin,” Fort Johnson Seminar Series, January 2004, Charleston SC.

Invited Speaker, “Moving beyond phosphate: Are plankton consuming (and sinking) more than we think?”, 2003 Chemical Oceanography Gordon Conference, August, 2003, Tilton, NH

Invited Speaker, “A reinterpretation of carbon and phosphorus cycling in the open ocean”, MIT, May, 2003, Boston, MA

Invited Speaker, “Are open oceans really biological deserts? A new perspective on phosphorus and carbon cycling in the North Pacific”, University of Connecticut, March, 2003, Groton, CT

Invited Speaker, “Atmospheric deposition of phosphorus and trace metals”, Harvard University, November 2002, Boston, MA

Invited Profile, Women in Marine Sciences, 2002,  http://www.womenoceanographers.com/

Invited Participant, Coastal ocean processes and observatories: Advancing coastal research, May, 2002 Savannah, GA.

Invited Participant, NOAA National Exploration and Education Workshop, September, 2002 Charleston, SC.

Invited Profile, Minorities in Aquatic Sciences, 2002,  http://www.aslo.org/mas/profiles.html

Invited Speaker, “’Export Production’ at Station ALOHA,” 2002 BATS/HOT Time-series Summit, April 2002, Vancouver BC.

Invited Speaker, "Phosphorus cycling in the North Pacific Gyre," 2000 AGU Fall Meeting, San Diego, CA, Dec. 15-19.

Invited Speaker, "Atmospheric cycling and atmospheric deposition of P," Princeton University, October 2000, Princeton, New Jersey.

Invited speaker, "Phosphorus cycling in a coastal ecosystem using short-lived radionuclides," Dissertations Symposium on Chemical Oceanography (DISCO XV), May 1999, Honolulu, Hawaii.

Invited speaker, "Atmospheric mixing and upper-ocean phosphorus cycling using short-lived Radioisotopes," University of Washington, April 1999, Seattle, Washington.

Invited poster, "Phosphorus cycling in the Gulf of Maine: A Multi-tracer Approach" EPA STAR Symposium, June 1998, Arlington, Virginia.

 

<% ElseIf strView = "teach" or strView = "" Then %>
TEACHING & STUDENT ADVISING:

Courses Taught:

All course Information (lectures, HW, etc) is now posted on Blackboard

Seminar in Geoscience Education GEOL 805 (Taught every semester)

Chemical Oceanography GEOL/MSCI 782 (Taught in Spring on odd years)

Environmental Radioisotope Geochemistry GEOL/MSCI 524 (Taught in Spring on even years)

Introduction to Oceanography MSCI 101 (Taught every Fall alternating between Honors and Regular sections)

Graduate Students

Current Graduate Students

Emily Sekula, Ph.D. candidate, Dept. of Earth & Ocean Sciences,  USC

Chris Burrell, M.S. candidate, Dept. of Earth & Ocean Sciences,  USC

Sharmila Pal, M.S. candidate, Marine Science Program,  USC

Past students

Suzanne DuBois, M.S. 2008, Dept. of Geological Sciences,  USC

Gabrielle Lyons, M.S. 2008, Dept. of Geological Sciences,  USC

Kanchan Maiti, Ph.D. 2007, Dept. of Geological Sciences,  USC

Melissa Ranhofer, M.S. 2005, Dept. of Geological Sciences,  USC

Lauren O'Neill, M.S. 2004, Marine Science Program, USC

Chris Carrillo, Ph.D. 2002 Dept. of Oceanography, Univ. of Hawaii

Jackie Heath, Ph.D. 2001 Dept. of Oceanography, Univ. of Hawaii

<% ElseIf strView = "mentor" or strView = "" Then %>

 

 

MENTORING & OUTREACH:

 

ScienceQuest

Director

 

 

Undergraduate Research Mentor

 

 

Susan wins First Place in the Earth/Marine Science Division at Discovery Day 2007!

 

Gabbi Lyons wins Best Undergraduate Presentation at the 2005

Estuarine Research Federation Conference

 

 
2003- present MSPHDs in Earth System Science Mentor

2002-2003 Upward Bound Mentor

 

2002-2003 SCAMP Mentor

 

Tiffany Hall, (SCAMP Outstanding Researcher 2002), and one of her many awards

2003 - present SPRI/Governor School High School Mentor

CBN with Rali at her poster 2006

 

Heidi and her poster 2005

 

 

Alex with the family in 2003
<% End If %>

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Updated July, 2010