Publications

業績

• Omori. Y., A. Saeki, S. Wada, Y. Inagaki, and T. Hama (2020), Experimental analysis of diurnal variations in humic-like fluorescent dissolved organic matters in surface seawater, Frontiers in Marine Science, 7, 589064, doi:10.3389/fmars.2020.589064.
• Wang, S., E. C. Apel, R. H. Schwantes, K. H. Bates, D. J. Jacob, E. V. Fischer, R. S. Hornbrook, A. J. Hills, L. K. Emmons, L. L. Pan, S. Honomichl, S. Tilmes, J. F. Lamarque, M. Yang, C. A. Marandino, E. S. Saltzman, W. Bruyn, S. Kameyama, H. Tanimoto, Y. Omori, et al. (2020), Global Atmospheric Budget of Acetone: Air‐Sea Exchange and the Contribution to Hydroxyl Radicals, Journal of Geophysical Research: Atmospheres, 125. doi:10.1029/2020jd032553.
• Wada, S., Y. Omori, S. Yamashita, Y. Hayashi, T. Hama, and Y. Adachi (2020), Aggregation of marine organic matter by bubbling, Journal of Oceanography, 317–326. doi:10.1007/s10872-019-00538-1.
• Wada, S., M. Ishii, N. Kosugi, D. Sasano, W. Matsushita, Y. Omori, and T. Hama (2020), Seasonal dynamics of seawater CO2 system at a coastal site near the southern tip of Izu Peninsula, Japan, Journal of Oceanography, 76, 227–242. doi:10.1007/s10872-020-00541-x.
• 大森裕子（2019）海洋表層における溶存有機化合物に関する生物地球化学的研究, 地球化学, 53, 1–12, doi:10.14934/chikyukagaku.53.2.
• Graham, J., M. Curran, E. Deschaseaux, Y. Omori, H. Tanimoto, H. Swan, B. Eyre, J. Ivey, E. McParland, A. Gabric, and R. Cropp (2018), The flux and emission of dimethylsulfide from the great barrier reef region and potential influence on the climate of NE Australia, Journal of Geophysical Research: Atmospheres, 123, 13, 835-856.
• Arai, K., S. Wada, K. Shimotori, Y. Omori, T. Hama (2017), Production and degradation of fluorescent dissolved organic matter derived from bacteria, Journal of Oceanography, 74, 39–52, doi:10.1007/s10872-017-0436-y.
• Omori, Y., H. Tanimoto, S. Inomata, K. Ikeda, T. Iwata, S. Kameyama, M. Uematsu, T. Gamo, H. Ogawa, and K. Furuya (2017), Sea-to-air flux of dimethyl sulfide in the South and North Pacific Ocean as measured by proton transfer reaction-mass spectrometry coupled with the gradient flux technique, Journal of Geophysical Research: Atmospheres, 122, 7216–7231, doi:10.1002/2017JD026527.
• Ueda, S., K. Miura, R. Kawata, H. Furutani, M. Uematsu, Y. Omori, and H. Tanimoto (2016), Number–size distribution of aerosol particles and new particle formation events in tropical and subtropical Pacific Oceans, Atmospheric Environment, 142, 324–339. doi:10.1016/j.atmosenv.2016.07.055.
• Wada, S., Y. Omori, Y. Kayamyo, Y. Tashiro, and T. Hama (2015), Photoreactivity of dissolved organic matter from macroalgae, Regional Studies in Marine Science, 2, 12–18. doi:10.1016/j.rsma.2015.08.018.
• Cui, Y., S. Suzuki, Y. Omori, S. K. Wong, M. Ijichi, R. Kaneko, S. Kameyama, H. Tanimoto, and K. Hamasaki (2015), Abundance and distribution of dimethylsulfoniopropionate-degrading genes and the corresponding bacterial community structure at dimethyl sulfide hotspots in the tropical and subtropical Pacific Ocean, Applied and Environmental Microbiology, 81, 4184–4194. doi:10.1128/AEM.03873-14.
• Omori, Y., H. Tanimoto, S. Inomata, S. Wada, K. Thume, and G. Pohnert (2015), Enhancement of dimethylsulfide production by anoxic stress in natural seawater, Geophysical Research Letters, 42 (10), 4047–4053. doi:10.1002/2015GL063546.
• Omori, Y., T. Hama, and M. Ishii (2015), Photochemical bleaching of fluorescent dissolved organic matter in the subtropical North Pacific Ocean, Geochemical Journal, 49 (2), 233–241. doi:10.2343/geochemj.2.0343.
• Tanimoto, H., S. Kameyama, T. Iwata, S. Inomata, and Y. Omori (2014), Measurement of air-sea exchange of dimethyl sulfide and acetone by PTR-MS coupled with gradient flux technique, Environmental Science and Technology, 48, 526–533. doi:10.1021/es4032562.
• 2013年以前
• Omori, Y., H. Tanimoto, S. Inomata, S. Kameyama, S. Takao, and K. Suzuki (2013), Evaluation of using unfiltered seawater for underway measurement of dimethyl sulfide in the ocean by online mass spectrometry, Limnology and Oceanography: Methods, 11, 549–560. doi:10.4319/lom.2013.11.549.
• Wada, S., K. Iseki and T. Hama (2013) Carbohydrate analysis by methanolysis method and application to compositional analysis of transparent exopolymer particles. Advances in Bioscience and Biotechnology, 4, 11-17.
• Satoh, Y., and T. Hama (2013) Stepwise alteration from fluorescent to non-fluorescent chlorophyll derivatives during early diagenesis of phytoplankton in aquatic environments. Journal of Experimental Marine Biology and Ecology, 449, 36-44.
• A'an, J. W., S. Wada, M. Aoki, T. Hama (2013) Stable isotope signature and pigment biomarker evidence of the diet sources of Gaetice depressus (Crustacea: Eubrachyura: Varunidae) in a boulder shore ecosystem. Plankton & Research, 8, 55-67.
• Satoh,Y., S. Nomoto, T., Hama (2012) Comprehensive Determination of Chlorophyll Derivatives by Chromic Acid Oxidation. Chemistry Letters, 41, 571-573.
• Yoshimura, K., and T. Hama (2012) Degradation and dissolution of zooplanktonic organic matter and lipids in early diagenesis. Journal of Oceanography, 69, 205-214.
• Shimotori, K., K. Watanabe, and T. Hama (2012) Fluorescence characteristics of humic-like fluorescent dissolved organic matter produced by various taxa of marine bacteria. Aquatic Microbial Ecology, 65, 249-260.
• Lee, S., Hama, T., Ishii, M., Saito, S., Omori, Y., Sasano, D. and Yanagi, K. (2010) Concentration and UV reactivity of total organic carbon in the upper layer in the oligotrophic subtropical western North Pacific. Journal of Geophysical Research, 115, C11019.
• Shimotori, K., Omori, Y. and Hama, T. (2009) Bacterial production of marine humic-like fluorescent dissolved organic matter and its biogeochemical importance. Aquatic Microbial Ecology 58, (1) 55-66.
• Yoshimura, K., Ogawa, T. and Hama, T. (2009) Degradation and dissolution properties of photosynthetically-produced phytoplankton lipid materials in early diagenesis. Marine Chemistry 114, (1-2) 11-18.
• Wada, S., Aoki, M. N., Mikami, A., Komatsu, T., Tsuchiya, Y., Sato, T., Shinagawa, H. and Hama, T. (2008) Bioavailability of macroalgal dissolved organic matter in seawater. Marine Ecology Progress Series 370, 33-44.
• Hanamachi, Y., Hama, T. and Yanai, T. (2008) Decomposition process of organic matter derived from freshwater phytoplankton. Limnology 9, (1) 57-69.
  
  2009年度日本陸水学会吉村賞受賞
• Lee, S., Hama, T., Ishii, M., Saito, S. and Yanagi, K. (2008) Spatial and temporal changes in the concentration of various phosphorus pools and their possible biogeochemical roles in the oligotrophic subtropical western North Pacific. Journal of Geophysical Research 113, C03017.
• Itoh, H., Aoki, M. N., Tsuchiya, Y., Sato, T., Shinagawa, H., Komatsu, T., Mikami, A. and Hama, T. (2007) Fate of organic matter in faecal pellets egested by epifaunal mesograzers in a Sargassum forest and implications for biogeochemical cycling. Marine Ecology Progress Series 352, 101-112.
• Kitayama, K., Hama, T. and Yanagi, K. (2007) Bioreactivity of peptidoglycan in seawater. Aquatic Microbial Ecology 46, 85-93.
• Wada, S., Aoki, M. N., Tsuchiya, Y., Sato, T., Shinagawa, H. and Hama, T. (2007) Quantitative and qualitative analyses of dissolved organic matter released from Ecklonia cava Kjellman, in Oura Bay, Shimoda, Izu Peninsula, Japan. Journal of Experimental Marine Biology and Ecology 349, (2) 344-358.
• Hama, T., Yanagi, K. and Hama, J. (2004) Decrease in molecular weight of photosynthetic products of marine phytoplankton during early diagenesis. Limnology and Oceanography 49, (2) 471-481.
• Shin, K., Hama, T. and Handa, N. (2003) Effect of nutrient conditions on the composition of photosynthetic products in the East China Sea and surrounding waters. Deep Sea Research Part II: Topical Studies in Oceanography 50, (2) 389-401.
• Hamanaka, J., Tanoue, E., Hama , T. and Handa, N. (2002) Production and export of particulate fatty acids, carbohydrates and combined amino acids in the euphotic zone. Marine Chemistry 77, (1) 55-69.
• Sakashita, T., Hama, T., Fuma, S., Doi, M., Nakamura, Y., Ishii, N. and Takeda, H. (2002) Effects of gamma-irradiation on CO₂ fixation and. Journal of Radioanalytical and Nuclear Chemistry 254, (2) 401-403.
• Hama, T. and Yanagi, K. (2001) Production and neutral aldose composition of dissolved carbohydrates excreted by natural marine phytoplankton populations. Limnology and Oceanography 46, (8) 1945-1955.
• Shin, K. H., Hama, T., Yoshie, N., Noriki, S. and Tsunogai, S. (2000) Dynamics of fatty acids in newly biosynthesized phytoplankton cells and seston during a spring bloom off the west coast of Hokkaido Island, Japan. Marine Chemistry 70, (4) 243-256.
• Hama, T. (1999) Fatty acid composition of particulate matter and photosynthetic products in subarctic and subtropical pacific. Journal of Plankton Research 21, (7) 1355-1372.