No ice in the Arctic Ocean for polar bears?

Dr. Laodong Guo

Associate Professor
Department of
Marine Science
University
of Southern Mississippi
Stennis Space Center, MS 39529,  USA

Tel:     (228)-688-1176
Fax:    (228)-688-1121
E-mail: Laodong.Guo@usm.edu
http://www.frontier.iarc.uaf.edu:8080/~guol



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Peer-reviewed publications since 2000

(See Dr. Guo's curriculum vitae for a complete publication list.  Click on Journals' link or pdf to download a specific paper)

Year 2006 (and "in press")

  • Wang, D., Henrichs, S, and Guo, L. 2006.  Distributions of nutrients, dissolved organic carbon and carbohydrates in the western Arctic Ocean.  Continental Shelf Res., (in press).
  • Guo, L. and Santschi, P.H. 2006.  Ultrafiltration  and its applications to sampling and characterization of aquatic colloids, Book Chapter, In "Environmental Colloids: Behavior, separation and characterization". Lead J. and Wilkinson K. (Eds.), IUPAC Series, John Wiley, (in press)
  • Zou, L., Sun, M.-Y., Guo, L. 2006. Temporal variations of organic carbon inputs into the upper Yukon River: Evidence from fatty acids and their stable carbon isotopic composition in dissolved, colloidal and particulate phases. Organic Geochemistry, (in press).
  • Guo, L., and Macdonald, R.W. 2006. Sources and transport of terrigenous organic matter in the upper Yukon River: evidence from isotope (13C, 14C and 15N) composition of dissolved, colloidal and particulate phases. Global Biogeochemical Cycles, 20(2), doi: 10.1029/2005GB002593 (Abstract or pdf file).
  • Buesseler, K. O., Benitez-Nelson, C., Moran, S. B., Burd, A., Charette, M.,Cochran, J. K., Coppola, L., Fisher, N., Fowler, S. W., Gardner,W., Guo,L. D., Gustafsson, O., Lamborg, C., Masque, P., Miquel, J. C., Passow, U.,  Santschi, P.H., Savoye, N.,  Stewart, G. and Trull, T. 2006. An assessment of particulate organic carbon to 234Th ratios in the ocean and their impact on the application of 234Th as a POC flux proxy.  Marine Chemistry, (in press, Abstract or pdf file).
  • Santschi, P.H., Murray, J.W., Baskaran, M., Benitez-Nelson, C., Guo, L.D., Hung, C.-C., Lamborg, C.,Moran, B., Passow, U. and Roy-Barman, M. 2006.  Thorium speciation in seawater.  Marine Chemistry, (in press, Abstract or pdf file).
  • Chen, M., Guo, L., Ma, Q., Qiu, Y.S., Zhang, R., Lv, E., and Huang, Y.P. 2006. Zonal patterns of d13C, d15N and 210Po in the North Pacific Ocean.  Geophys. Res. Lett., 33(4), L04609, doi: 10.1029/2005GL025186 (Abstract or pdf file).
  • Belzile, C. and Guo, L. 2006. Optical properties of low molecular weight and colloidal organic matter: Application of the ultrafiltration permeation model to DOM absorption and fluorescence.  Marine Chemistry 98, 183-196 (abstract or pdf ).
  • Guéguen, C., Guo, L., Wang, D., Tanaka, N. and Hung C.-C. 2006.  Chemical characteritics and origin of dissolved organic matter in the Yukon River. Biogeochemistry, 77, 139-155 (Abstract, or pdf file).

Year 2005

  • Guéguen, C., Guo, L., Tanaka, N. 2005. Distributions and characteristics of colored dissolved organic matter in he western Arctic Ocean.  Continental Shelf Res., 25(10): 1195-1207 (abstract, or pdf).

Year 2004

  • Guo, L. Semiletov, I., Gustafsson, O., Ingri, J. Andersson, P. Dudarev, O. White, D. 2004. Characterization of Siberian Arctic estuarine sediments: Implications for terrestrial organic carbon export. Global Biogeochemical Cycles, 18(1), GB1036, doi: 10.1029/2003GB002087, (abstract or pdf, times cited:  3).
  • Guo, L., Zhang, J.-Z., Guéguen, C. 2004. Speciation and fluxes of nutrients (N, P, Si) from the upper Yukon River.  Global Biogeochemical Cycles, 18(1), GB1038, doi: 10.1029/2003GB002151 (abstract or pdf,times cited:  2).
  • Tanaka, T., Guo, L., Deal, C., Tanaka, N., Whitledge, T. and Murata, A.  2004. Nitrogen deficiency in a well oxygenated cold bottom water over the Bering Sea Shelf: Influence of sedimentary denitrificationContinental Shelf Res., 24: 1271-1283 (Abstract or pdf, times cited:  1).
  • Hung, C.-C., Guo, L., Roberts, K. A. and Santschi, P.H. 2004. Upper ocean carbon export fluxes determined by Th-234 and sediment traps in the Gulf of Mexico. Geochemical Journal, 38: 601-611 (abstract, or pdf file, times cited:  )
  • Guo, L., Tanaka, T., Wang, D., Tanaka, N. and Murata, A.  2004. Distributions, speciation and stable isotope composition of  organic matter in the eastern Bering Sea.  Marine Chemistry, 91: 211-226, (Abstract or pdf, times cited:  ).
  • Chen, M., Wang, W.-X. and Guo, L. 2004.  Phase partitioning and solubility of Fe in seawater controlled by dissolved organic matter. Global Biogeochemical Cycles, 18 (4), GB4013, doi: 10.10.29/2003GB002160 (Abstract or pdf, times cited: 1).

Year 2003

  • Guo, L., Tanaka, N., Schell, D. M.  Santschi, P.H.  2003. Nitrogen and carbon isotopic composition of high-molecular-weight dissolved organic matter in marine environments. Mar. Ecol. Prog. Ser., 252: 51-60 (abstract or pdf,  times cited:  5).
  • Hung, C.-C., Guo, L., Shultz, G., Pinckney, J. and Santschi, P.H. 2003. Production and fluxes of carbohydrate species in the Gulf of Mexico. Global Biogeochemical Cycles, 17(2), 1055, doi: 10.1029/2002GB001988 (abstract or pdf,  times cited:  1).
  • Chen, M.,  Dei, R.C.H., Wang, W.-X. and Guo, L. 2003. Marine diatom uptake of iron bound with natural colloids of different origins. Marine Chemistry, 81(3/4): 177-189 (Abstract or pdf,  times cited:  10).
  • Hung, C.-C., Guo, L. Santschi, P. H. Alvarado, N. and Haye, J. 2003.  Distributions of carbohydrate species in the Gulf of Mexico.  Marine Chemistry, 81(3/4): 119-135 (Abstract or pdf,  times cited:  9).
  • Guo, L., Lehner, J.K. White, D.M. and Garland, D. S. 2003. Heterogeneity of natural organic matter from the Chena River, Alaska. Water Research, 37(5): 1015-1022 (Abstract or pdf,  times cited:  10).
  • Chen, M., Huang, Y., Cai, P, and Guo, L. 2003.  Particulate organic carbon export fluxes in the Canada Basin and Bering Sea as derived from 234Th/238U disequilibria.  Arctic,  56(1): 32-44 (Abstract or pdf,  times cited:  4).
  • Santschi, P. H., Hung, C.C., Shultz, G., Alvarado-Quiroz, N., Guo, L., Pinckney, J. and Walsh, I.  2003.  Control of acid polysaccharide production and 234Th and POC export fluxes by marine organisms.  Geophysical Research  Letters, 30(2), 1044, doi: 10.1029/GL016046 (abstract or pdf,  times cited:  9).

Year 2002

  • Guo, L., Chen, M. and Guéguen, C. 2002. Control of Pa/Th ratio by particulate chemical composition in the ocean.  Geophysical Research  Letters, 29: (20), 1961, doi:10.1029/2002GL015666 (abstract or pdf,  times cited:  2).
  • Santschi, P. H., Roberts, K. A. and Guo, L. 2002.  The organic nature of colloidal actinides (239,240Pu and 241Am) transported in surface water environments.  Environmental Science & Technology. 36: 3711-3719 (pdf,  times cited:  7).
  • Guo, L. Hung, C.C. Santschi, P. H. and Walsh, I. D. 2002. Th-234 scavenging and its relationship to acid polysaccharide abundance in the Gulf of Mexico. Marine Chemistry 78: 103-119 (pdf,  times cited:  21).
  • Guo, L., Santschi, P. H. and Ray, S. 2002. Metal partitioning between dissolved and particulate phases and its relation with bioavailability to American oysters. Marine Environmental  Research, 54: 49-64 (pdf,  times cited:  8).
  • Chen, M., Huang, Y., Guo, L., Cai, P., Yang, W., Liu, G. & Qiu, Y. 2002.  Biological productivity and carbon cycling in the Arctic Ocean. Chinese Science Bulletin,  47(12): 1037-1040 (pdf,  times cited:  1).
  • Quigley, M. S., Santschi, P. H., Hung, C., Guo, L. and  Honeyman, B. D. 2002. Importance of acid polysaccharides for 234Th complexation to marine organic matter. Limnology and Oceanography47(2): 367-377 (pdf,  times cited:  30).
  • Cai, P., Huang Y., Chen, M., Guo, L., Liu, G., and Qiu, Y.  2002. New production based on 228Ra-derived nutrient budgets and 228,234Th-estimated POC export at the intercalibration station in the South China Sea. Deep-Sea Research  I, 49(1): 53-66 (pdf,  times cited:  5).

Year 2001

  • Quigley, M. S., Santschi, P. H., Guo, L. and Honeyman, B. D. 2001. Sorption irreversibility and coagulation behavior of 234Th with marine organic matter. Marine Chemistry, 76(1/2): 27-45 (pdf,  times cited:  16).
  • Guo, L. Hunt, B. J., Santschi, P. H. and Ray, S. 2001. Effect of dissolved organic matter on the metal uptake by American oysters (Crassostrea virginica). Environmental Science & Technology, 35(5): 885-893 (pdf,  times cited:  21).
  • Wang, W. and Guo, L. 2001. Production of colloidal organic carbon and trace metals by phytoplankton decomposition. Limnology and Oceanography, 46(2): 278-286 (pdf,  times cited:  6).
  • Santschi, P. H., Guo, L., Wen, L. 2001. Box coring artifacts in sediments affected by a waste water outfall. Marine Pollution  Bulletin, 42(4): 267-272 (pdf,  times cited:  1).
  • Guo, L., Hunt, B.J., Santschi, P. H. 2001. Ultrafiltration behavior of major ions (Na, Ca, Mg, F, Cl, SO4) in natural waters. Water Research, 35 (6): 1500-1508 (pdf,  times cited:  16).
  • Santschi, P. H., Guo, L., Asbill, S., Allison, M. and Wen, L., 2001. Accumulation rates of sediments and organic carbon on the Palos Verdes Shelf based on radioisotopic tracers (137Cs,239, 240Pu,210Pb,234Th & 14C). Marine Chemistry, 73: 125-152 (pdf,  times cited:  8).
  • Santschi, P. H., Wen,- L. and Guo, L. 2001. Trace metals and organic carbon transport and diagenesis in Palos Verdes shelf sediments affected by a sewage outfall. Marine Chemistry, 73: 153-171 (pdf,  times cited:  3).

Year 2000

  • Guo, L and Santschi P. H. 2000. Sedimentary source of old high molecular weight dissolved organic carbon from the ocean margin benthic nepheloid layer. Geochim. Cosmochim. Acta, 64:651-660 (Abstract or pdf,  times cited:  19).
  • Wang, W. and Guo, L. 2000. Influence of natural colloids on metal bioavailability to two marine bivalves. Environ. Sci. Technol., 34: 4571-4576 (pdf,  times cited:  19).
  • Mitra, S.; Bianchi, T. S.; Guo, L. and Santschi, P. H. 2000. Terrestrially-derived dissolved organic matter in the Chesapeake Bay and the Middle Atlantic Bight. Geochim. Cosmochim. Acta, 64: 3547-3557 (pdf,  times cited:  14).
  • Guo, L., Warnken, K. W. and Santschi, P. H. 2000. Trace metal composition of colloidal organic matter in marine environments. Marine Chemistry, 70(4): 257-275 (pdf,  times cited:  25).
  • Wang, W. and Guo L, 2000. Bioavailability of colloidal-bound metals to marine plankton. Mar. Ecol. Prog. Ser., 202: 41-49 (pdf,  times cited:  13).
  • Chen, M., Guo, L., Huang, Y. Gao, Z., Cai, Y. and Cai, M. 2000. Study of colloidal uranium, thorium, radium isotopes and organic carbon in seawater. Acta Oceanologica Sinica, 22(5): 51-59 (pdf). 
  • Guo, L., Wen, L., Tang, D., and Santschi, P. H. 2000. Re-examination of cross flow ultrafiltration for sampling aquatic colloids: evidence from molecular probes. Marine Chemistry, 69: 75-90 (pdf,  times cited:  45).

See the complete publication list in Dr. Guo's CV .   Check time cited for each paper from ISI at webofscience or ISI Web of Knowledge. You could down load pdf files for a specific paper from www.sciencedirect.com (or ScienceDirect Web Edition) and other publisher's wensites (such as AGU, ACS, ASLO etc) or send him an e-mail for a reprint.


 

Figure

Relationsgip between delta-14C and C/N ratio in colloidal organic matter (COM)  from marine environments (from Guo et al., 1996, Limnology and Oceanography,41: 1242-1252, pdf file)


From Guo et al. (2004), Speciation and fluxes of nutrients (N, P, Si) from the upper Yukon River, Global Biogeochemical Cycles, 18(1), GB1038 (pdf).

 

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This page Copyright © 2001-2006  Laodong Guo.
Last updated:  March 30, 2006