Museum staff Azumi Kuroyanagi

Azumi Kuroyanagi

Assistant Professor

Research field

Micropaleontology & paleoceanography

Research Interests

    · Planktonic foraminifera as proxy for oceanic environment

Selected papers

  1. Yoshimura, T., Tamenori, Y., Takahashi, O., Nguyen, L.T., Hasegawa, H., Iwasaki, N., Kuroyanagi, A., Suzuki, A., Kawahata, H. (2015) Mg coordination in biogenic carbonates constrained by theoretical and experimental XANES. Earth and Planetary Science Letters,421, 68-74. DOI: 10.1016/j.epsl.2015.03.048
  2. Kuroyanagi, A., da Rocha, R.E., Bijma, J., Spero, H., Russel, A.D., Eggins, S.M., Kawahata, H. (2013) Effect of dissolved oxygen concentration on planktonic foraminifera through laboratory culture experiments and implications for oceanic anoxic events. Marine Micropaleontology, Vol. 101, pp. 28-32. doi: 10.1016/j.marmicro.2013.04.005
  3. Kuroyanagi, A., da Rocha, R.E., Bijma, J., Spero, H., Russel, A.D., Eggins, S.M., Kawahata, H. (2013) Effect of dissolved oxygen concentration on planktonic foraminifera through laboratory culture experiments and implications for oceanic anoxic events. Marine Micropaleontology, Vol. 101, pp. 28-32. doi: 10.1016/j.marmicro.2013.04.005
  4. Sagawa, T., Kuroyanagi, A., Irino, T., Kuwae, M., Kawahata, H. (2013) Seasonal variations in planktonic foraminiferal flux and oxygen isotopic composition in the western North Pacific: Implications for paleoceanographic reconstruction. Marine Micropaleontology, Vol. 100, pp. 11-20. doi: 10.1016/j.marmicro.2013.03.013
  5. Kuroyanagi, A., Kawahata, H., Nishi, H. (2011) Seasonal variation in the oxygen isotopic composition of different-sized planktonic foraminifer Neogloboquadrina pachyderma (sin.) in the northwestern North Pacific, and implications for reconstruction of the paleo-environment. Paleoceanography. doi:10.1029/2011PA002153
  6. Dueñas-Bohórquez, A., da Rocha, R.E., Kuroyanagi, A., de Nooijer, L.J., Bijma, J., Reichart, G.J. (2011) Interindividual variability and ontogenetic effects on Mg and Sr incorporation in the planktonic foraminifer Globigerinoides sacculifer. Geoghimica et cosmochimica acta, Vol. 75, pp. 520-532. doi: 10.1016/j.gca.2010.10.006
  7. Kawahata, H., Ohshima, H., Kuroyanagi, A. (2011) Terrestrial - ocean environmental change in the northwestern Pacific from the glacial times to Holocene. Asian Earth Science, Vol. 40, pp. 1189-1202. doi: 10.1016/j.jseaes.2010.10.007
  8. Hikami, M., Ushie, H., Irie, T., Fujita, K., Kuroyanagi, A., Nojiri, H., Sakai, K., Suzuki, A., Kawahata, H. (2011) Contrasting calcification responses to ocean acidification between two reef foraminifers harboring different algal symbionts. Geophysical Research Letters, Vol. 38, L19601. doi:10.1029/2011GL048501
  9. Fujita, K., Hikami, M., Suzuki, A., Kuroyanagi, A., Sakai, K., Kawahata, H., Nojiri, H. (2011) Effects of ocean acidification on calcification of symbiont-bearing reef foraminifers. Biogeoscience, Vol. 8, pp. 2089-2098. doi:10.5194/bg-8-2089-2011
  10. Kuroyanagi, A., Kawahata, H., Suzuki, A., Fujita, K., Irie, T. (2009) Impacts of ocean acidification on large benthic foraminifers: Results from laboratory experiments. Marine Micropaleontology, Vol. 73, pp. 190-195. doi: 10.1016/j.marmicro.2009.09.003
  11. Dueñas-Bohórquez, A., da Rocha, R.E., Kuroyanagi, A., Bijma, J., Reichart, G.J. (2009) Effect of salinity and seawater calcite saturation state on Mg and Sr incorporation in cultured planktonic foraminifera. Marine Micropaleontology, Vol. 73, pp. 178-189. doi: 10.1016/j.marmicro.2009.09.002
  12. Kawahata, H., Minoshima, K., Ishizaki, Y., Yamaoka, K., Gupta L.P., Nagao, M., Kuroyanagi, A. (2009) Comparison of settling particles and sediments at IMAGES coring site in the northwestern North Pacific - Effect of resuspended particles on paleorecords. Sedimentary Geology, Vol. 222, pp. 254-262. doi: 10.1016/ j.sedgeo.2009.09.012
  13. Kuroyanagi, A., Tsuchiya, M., Kawahata, H., Kitazato, H. (2008) Paleo-environmental implications of two genotypes of the planktonic foraminifer Globigerinoides ruber (white). Marine Micropaleontology, Vol. 68, pp. 236-243. doi: 10.1016/j.marmicro.2008.04.004
  14. Kuroyanagi, A., Kawahata, H., Nishi, H., Honda, M.C. (2008) Seasonal to interannual changes in planktonic foraminiferal assemblages in the northwestern North Pacific: sediment trap results encompassing a warm period related to El Ni?o. Palaeogeography, Palaeoclimatology, Palaeoecology, Vol. 262, pp. 115-135. doi: 10.1016/j.palaeo.2008.02.012
  15. Kuroyanagi, A., Kawahata, H., Narita, H., Ohkushi, K., Aramaki, T. (2006) Reconstruction of paleoenvironmental changes based on the planktonic foraminiferal assemblages off Shimokita (Japan) in the northwestern Pacific. Global Planetary Change, Vol. 53, pp. 92-107. doi: 10.1016/j.gloplacha.2006.01.015
  16. Kuroyanagi, A., Kawahata, H. (2004) Vertical distribution of living planktonic foraminifera in the seas around Japan. Marine Micropaleontology, Vol. 53, pp. 173-196. doi:10.1016/j.marmicro.2004.06.001
  17. Kuroyanagi, A., Kawahata, H., Nishi, H., Honda, M.C. (2002) Seasonal changes in planktonic foraminifera in the northwestern North Pacific Ocean: sediment trap experiments from subarctic and subtropical gyres. Deep-Sea Research II, Vol. 49, pp. 5627-5645.
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