Research Interests

• 高生産海域における第四紀後期の海洋表層環境変遷
  (Sea surface environmental changes in the high productivity areas during the late Quaternary)
• 高緯度海域における植物プランクトンの分布と生態
  (Distribution and ecology of phytoplankton in the high-latitude Seas)
• 汽水域における植物プランクトンの分布と環境
  (Relationship between phytoplankton distribution and coastal lagoon environments)

List of Publications with peer review

• Katsuki, K., Takahashi, K., and Okada, M. (2003) Diatom assemblage and productivity changes during the last 340,000 years in the subarctic Pacific. Journal of Oceanography, No.59, pp.695-707.
• Katsuki, K., Takahashi, K., and Matsushita, K. (2004) Diatom paleocenography during the past 300 kyrs in the southern Bering Sea and the western subarctic Pacific. Proceeding of 17th International Diatom Symposium, Ottawa, Canada (M. Poulin, ed.), pp. 147-159.
• Ono, A., Takahashi, K., Katsuki, K., Okazaki, Y., and Sakamoto, T., 2005, accepted. The Dansgaard-Oeschger cycles discovered in the up stream source region of the North Pacific Intermediate Water formation. Geophysical Research Letters, Vol.32, L11607, doi:10. 1029/2004GL022260.
• Onodera, J., Katsuki, K., Takahashi, K., and Jordan. R.W., LM Atlas of Diatoms from the northwestern North Pacific. Micropaleontology, 49, accepted.
• Katsuki, K. and Takahashi, K., Diatoms as paleoenvironmental proxies for seasonal productivity, sea-ice and surface circulation in the Bering Sea during the late Quaternary. Deep-Sea Research II, accepted.
• Okazaki, Y., K. Takahashi, K. Katsuki, A. Ono, J. Hori, T. Sakamoto, M. Uchida, M. Ikehara, and K. Aoki. Late Quaternary paleoceanographic changes in the southwestern Okhotsk Sea: evidence from geochemical, radiolarian, and diatom records. Deep-Sea Research II, accepted.
• Okazaki, Y., K. Takahashi, H. Asahi, K. Katsuki, J. Hori, and E. Tokuyama. Biological production changes in the Bering Sea during the late Quaternary. Deep-Sea Research II, accepted

No refereeing paper and Cruise reports

• 香月　興太・高橋　孝三・Richard W. Jordan・松下　貴誉・仙石　豊恵、2003。 ベーリング海及び西部北太平洋亜寒帯域における珪藻化石群集を用いた表層水循環の復元、月刊　海洋 35, 394-400。
• Katsuki, K., Takahashi, K., Diatom and radiolarian paleoceanography during the Pleistocene and Holocene in Gulf of Aden, 2000 R/V Hakuho-Maru Aden New Century Cruise KH00-5 leg.3, Onboard Cruise Report, pp 104.
• Katsuki, K., Matsueda, D., Distribution of diatoms in sea-surface waters in the western and central equatorial Pacific, 2002 R/V Mirai MR02-K06 leg.3, 4, Onboard Cruise Report, pp. 99.
• Sasaki, A., Katsuki, K., Matsueda, D., Distributions of planktic foraminifera and radiolarians in the Equatorial Pacific Ocean. 2002 R/V Mirai MR02-K06 leg.3, 4, Onboard Cruise Report, pp. 101.
• Katsuki, K., Takahashi, K., Paleoceanographic reconstruction based on radiolarian assemblages from the off Chile and the Strait of Magellan, 2003 R/V Mirai MR03-K04 leg.3, Onboard Cruise Report, pp. 79-80.

International Symposium

• Katsuki, K., Takahashi, K., Matsushita, K., Diatom assemblage changes during the last 300 kyrs in the western subarctic Pacific. 2002 Ocean Sciences Meeting Program, American Society of Limnology and Oceanography, American Geophysical Union: Honolulu, Hawaii: 11-15 February 2002, Supplement to EOS, Transactions, American Geophysical Union 83 (4), pp. 242.
• Katsuki, K., Takahashi, K., Matsushita, K., Diatom changes and paleoceanography in the Bering Sea and subarctic Pacific during the last 300 kyrs. 2002 17th International Diatom Symposium: Ottawa, Canada: 25-31 August, 2002.
• Okazaki, Y., Takahashi, K., Ono, A., Hori, J., Katsuki, K., Asahi, H., Sakamoto, T., Ikehara. M., Late Quaternary paleoceanographic change in the Okhotsk Sea: based on analyses of opal, CaCO3, TOC, and microfossils in MD01-2412 core. 2003 13th Annual V.M. Goldschmidt Conference: Kurashiki, Japan: 7-12 September 2003. Supplement to Geochimica et Cosmochimica Acta 67(18S), A358.
• Sakamoto, T., Ikehara, M., Uchida, M., Aoki, K., Harada, N., Kanamatsu, T., Sakai, H., Okazaki, Y., Katsuki, K., Asahi, H., Takahashi, K., Kawahata. H., Millennium scale paleoceanographic changes in high sedimentation IMAGES core MD01-2412 in the southwestern part of the Sea of Okhotsk. 2003 13th Annual V.M. Goldschmidt Conference: Kurashiki, Japan: 7-12 September 2003. Supplement to Geochimica et Cosmochimica Acta 67(18S), A411.
• Katsuki, K., Takahashi, K., Ono, A., Okazaki, Y., Sakamoto, T., Ikehara. M., Dynamics of the southern Okhotsk Sea during the late Quaternary reconstructed by changes in biogenic opal, total organic carbon, and siliceous microfossils in Core MD01-2412. 2004 Ocean Sciences Meeting Program, American Geophysical Union: Portland, Oregon: 26-30 January, 2004. Supplement to EOS, Transactions, American Geophysical Union 84 (52), pp. 118.
• Katsuki, K., Takahashi. K., Diatom based sea-ice history in the Okhotsk and the Bering Seas during the last 100 kyrs. 8th International Conference on Paleoceanography, Biarritz, France, 5-10 September, 2004. Supplement to Program and Abstracts, pp.169.
• Asahi, H., Takahashi, K., Okazaki, Y., Katsuki, K., Sakamoto, T., Ikehara, M., Late Quaternary calcareous fossil records and their response to sea-ice condition in the Okhotsk Sea. 8th International Conference on Paleoceanography, Biarritz, France, 5-10 September, 2004. Supplement to Program and Abstracts, pp.61.
• Katsuki, K., Takahashi, K., The late Quaternary paleoceanographic changes in the Bering Sea based on diatoms as environmental proxies. Bering Sea Drilling Workshop, Fairbanks, Alaska, 20-21 June, 2005.
• Tanaka, S., Takahashi, K., Katsuki, K., Onodera, J., Okazaki, Y., Spacio-temporal distribution of radiolarians and paleoceanography in the Bering Sea and the subarctic Pacific. Bering Sea Drilling Workshop, Fairbanks, Alaska, 20-21 June, 2005.

Funds

• 2004年度　日本科学協会　笹川科学研究助成　550,000円

Research Center for Coastal Lagoon Environments,
Shimane University,
1060 Nishikawatsucho, Matsue 690-8504, Japan

Phone & fax: +81-852-32-9741
E-mail: kkota@soc.shimane-u.ac.jp

ReCCLE Home