Curriculum Vitae
Youhei Yamashita (PhD)
Hokkaido University
Faculty of Environmental Earth Science
N10, W5, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
Telephone: +81(11) 706-2349, E-mail: yamashiy@ees.hokudai.ac.jp
Education:
2002-2004
Nagoya University, Japan. Ph.D. in science under the direction of Dr. Eiichiro Tanoue.
2000-2002
1996-2000

Nagoya University, Japan. M.Sc. in science under the direction of Dr. Eiichiro Tanoue.
Meiji University, Japan. B.A. in agriculture under the direction of Dr. Kazushige
Nakabayashi.

Work Experience:
2009-present
Hokkaido University, Associate Professor Faculty in Environmental Earth Science
2007-2009
Florida International University, Post Doctoral Research Scientist Southeast
Environmental Research Center & Department of Chemistry.
2006-2007
Nagoya University, Researcher Graduate School of Environmental Studies.
2004-2006
Nagoya University, JSPS (Japanese Society for the Promotion of Science) Post
Doctoral Research Fellow Graduate School of Environmental Studies.
Awards etc:
• 2002-2004••••

2003-2004
2004
2005
2009

•
•

2015
2023

Scholarship of the Mitsubishi Trust Yamamuro Memorial ScholarshipFoundation (JAPAN)
Research Assistant of the 21st Century COE Program, Nagoya University
JSPS (Japanese Society for the Promotion of Science) Doctoral Research Fellow
Japanese Association of Organic Geochemists, Award for Young Researcher
Oceanographic Society of Japan, Okada Prize (award to a young memberof the Society who has made outstanding contributions to progress ofoceanography)
Hokkaido University, Presidents’ Research Award
Japan Geoscience Union, Nishida PrizePublications:
Yamashita, Y., T. Takekuma, M. Tajiri, Oida, J., S. Kakehi, A. Ooki, and T. Hirawake (2024) Tracing
sediment-affected water masses from coastal areas to offshore oceans using in situ sensing offluorescent organic matter. Journal of Geophysical Research: Oceans, accepted.
Oida, J., T. Hirawake, Y. Yamashita, H. Abe, J. Nishioka, H. Waga, D. Nomura, and S. Kakehi (2024)
Classification of optical water groups in the subarctic Pacific and adjacent seas using satellite-derived
light absorption spectra of chromophoric dissolved organic matter. Deep-Sea Research Part I, 208,
104313.
Lønborg, C., C. Cátia, A. Gwenael, S. Agustí, V. Amaral, A. Andersson, J. Arístegui, P. Bhadury, M.B.
Bif, A.V. Borges, S. Bouillon, M.L. Calleja, L.C. Jr. Cotovicz, S. Cozzi, M. Doval, C.M. Duarte, B.D.
Eyre, C. Fichot, E. García-Martín, A. Garzon-Garcia, M. Giani, R. Gonçalves-Araujo, R.K. Gruber,
D.A. Hansell, F. Hashihama, D. He, J. Holding, W.R. Hunter, J.S. Ibánhez, V. Ibello, S. Jiang, Shan;
G. Kim, K. Klun, P. Kowalczuk, A. Kubo, C.W. Lee, C.B. Lopes, F. Maggioni,P. Magni, C Marrasé,P. Martin, S.L. McCallister, R. McCallum, P.M. Medeiros, X.A.G. Morán, F. Muller-Karger, A.
Myers-Pigg, M. Norli, J.M. Oakes, H. Osterholz, H. Park, L.M. Paulsen, J.A. Rosentreter, J. Ross, D.
Rueda-Roa, C. Santinelli, Y. Shen, E. Teira, T. Tinta, G. Uher, M. Wakita, N.D. Ward, K. Watanabe,
Y. Xin, Y. Yamashita, L. Yang, J. Yeo, H. Yuan, Q. Zheng, and X.A. Álvarez‐Salgado (2024) A
global database of dissolved organic matter (DOM) concentration measurements in coastal waters(CoastDOM v1). Earth System Science Data, 16, 1107-1119.
Otosaka, S., Y. Hou, M. Wakita, Y. Yamashita, J. Nishioka, H. Obata, Y. Miyairi, Y. Yokoyama, and H.
Ogawa (2024) Origin and Transport of Dissolved Organic Matter in the Northwestern Margin of theNorth Pacific Inferred from Radiocarbon Signatures. Journal of Coastal Research, 116, 181-185.
Yamashita, Y., and J. Nishioka (2023) Dissolved iron concentration and the solubility inferred by humiclike fluorescent dissolved organic matter in the intermediate water in the North Pacific including themarginal seas. Journal of Geophysical Research-Biogeosciences, 128, e2022JG007159.
Yamashita, Y., Y. Mori, and H. Ogawa (2023) Hydrothermal-derived black carbon as a source ofrecalcitrant dissolved organic carbon in the ocean. Science Advances, 9, eade3807.
Kubo, A., Y. Yamashita, F. Hashihama, and J. Kanda (2023) The origin and characteristics of dissolved
organic carbon in the highly urbanized coastal waters of Tokyo Bay. Journal of Oceanography,
accepted.
Xiao X., Y. Yamashita, M. Gonsior, and N. Jiao (2023) The efficiency of the microbial carbon pump as
seen from the relationship between apparent oxygen utilization and fluorescent dissolved organic
matter. Progress in Oceanography, 210, 102929.
Chen, M., J. Hur, J.-D. Gu, and Y. Yamashita (2023) Microbial degradation of various types of dissolved
organic matter in aquatic ecosystems and its influencing factors. SCIENCE CHINA Earth Sciences, 66,
169-189.
Zhang, C., T. Shi, J. Liu, Z. He, H. Thomas, H. Dong, B. Rinkevich, Y. Wang, J.-H. Hyun, M. Weinbauer,
C. López-Abbate, Q. Tu, S. Xie, Y. Yamashita, P. Tishchenko, Q. Chen, R. Zhang, and N. Jiao
(2022) Eco-engineering approaches for ocean negative carbon emission. Science Bulletin, 67, 2564–
2573.
Kanna, N., S. Sugiyama, T. Ando, Y. Wang, Y. Sakuragi, T. Hazumi, K. Matsuno, A. Yamaguchi, J.
Nishioka, and Y. Yamashita (2022) Meltwater discharge from marine-terminating glaciers drives
biogeochemical conditions in a Greenlandic fjord. Global Biogeochemical Cycles, 36, GB007411.

Kawana, K., Y. Miyazaki, Y. Omori, H. Tanimoto, S. Kagami, K. Suzuki, Y. Yamashita, J. Nishioka, Y.
Deng, H. Yai, and M. Mochida (2022) Number-size distribution and CCN activity of atmosphericaerosols in the western North Pacific during spring pre-bloom period: Influences of terrestrial andmarine sources. Journal of Geophysical Research: Atmospheres, 127, JD036690.
Lee, A.M., A. Maruyama, S. Lu, Y. Yamashita, and T. Irino (2022) Quantification of Asian dust source
variabilities in silt and clay fractions since 10Ma by parallel factor (PARAFAC) endmember modelingat IODP Site U1425 in the Japan Sea. Lithosphere, 2022, 6818103.
Wong, J.H., H. Obata, J. Nishioka, Y. Yamashita, Y. Kondo, T. Kim, A. Mashio, and H. Hasegawa (2022)
Subarctic Pacific Intermediate Water: An Oceanic Highway for the Transport of Trace Metals in the
North Pacific. Limnology and Oceanography Bulletin, 31, 31-36.
Takaki, Y., K. Hattori, and Y. Yamashita (2022) Factors controlling the spatial distribution of dissolved
organic matter with changes in the C/N ratio from the upper to lower reaches of the Ishikari River,Japan. Frontiers in Earth Science, 10, 826907.
Yamashita, Y., M. Nakane, Y. Mori, J. Nishioka, and H. Ogawa (2022) Fate of dissolved black carbon in
the deep Pacific Ocean. Nature Communications, 13, 307.
Oka, A., Y. Obayashi, K. Katsumata, K. Takahashi, Y. Yamashita, and T. Yokokawa (2021) Decadal
Vision in Oceanography 2021: Deep Ocean. Oceanography in Japan, 30, 179-198. (Japanese withEnglish abstract)
Nishioka, J., T. Hirawake, D. Nomura, Y. Yamashita, K. Ono, A. Murayama, A. Shcherbinin, Y. N.
Volkov, H. Mitsudera, N. Ebuchi, M. Wakatsuchi, and I. Yasuda (2021) Iron and nutrient dynamics
along the East Kamchatka Current, western Bering Sea Basin and Gulf of Anadyr. Progress in
Oceanography, 198, 102662.
Hirawake, T., J. Oida, Nomura, Y. Yamashita, H. Waga, H. Abe, J. Nishioka, D. Nomura, H. Ueno, and A.
Ooki (2021) Water mass distribution in the northern Bering and southern Chukchi seas using lightabsorption of chromophoric dissolved organic matter. Progress in Oceanography, 197, 102641.
Takano, S., Y. Yamashita, S. Tei, M. Liang, R. Shingubara, T. Morozumi, T. Maximov, and A. Sugimoto(2021) Stable water isotope assessment of tundra wetland hydrology as a potential source of Arctic
riverine dissolved organic carbon in the Indigirka River lowland, northeastern Siberia. Frontiers inEarth Science, 9, 699365.
Hansell, D.A., C.A. Carlson, A.M.W. Rainer, X.A. Álvarez-Salgado, Y. Yamashita, C. Romera-Castillo,
and M.B. Bif (2021) Compilation of dissolved organic matter (DOM) data obtained from global ocean
observations from 1994 to 2020 (NCEI Accession 0227166). NOAA National Centers forEnvironmental Information, Dataset, https://doi.org/10.25921/s4f4-ye35
Nomura, D., H. Abe, T. Hirawake, A. Ooki, Y. Yamashita, A. Murayama, K. Ono, and J. Nishioka (2021)
Formation of dense shelf water associated with sea ice freezing in the Gulf of Anadyr estimated withoxygen isotopic ratios. Progress in Oceanography, 196, 102595.
Nishioka, J., H. Obata, T. Hirawake, Y. Kondo, Y. Yamashita, K. Misumi, and I. Yasuda (2021) A review:
Iron and nutrient supply in the subarctic Pacific and its impact on phytoplankton production. Journalof Oceanography, 77, 561-587.

Sjöstedt, Y., J.-P. Lapierre, Y. Yamashita, and F. Baltar (2021) Editorial: Microbial utilization andtransformation of dissolved organic matter in aquatic environments -from streams to the deep
ocean. Frontiers in Microbiology, 12, 668560.
Mori, Y., J. Nishioka, S. Fujio, and Y. Yamashita (2021) Transport of dissolved black carbon frommarginal sea sediments to the western North Pacific. Progress in Oceanography, 293, 102552.
Yamashita, Y., D. Kojima, N. Yoshida, and H. Shibata (2021) Relationships between dissolved black
carbon and dissolved organic matter in streams. Chemosphere, 271, 129824.
Yamashita, Y., T. Tosaka, R. Bamba, R. Kamezaki, S. Goto, J. Nishioka, I. Yasuda, T. Hirawake, J.
Oida, H. Obata, and H. Ogawa (2021) Widespread distribution of allochthonous fluorescent dissolved
organic matter in the intermediate water of the North Pacific. Progress in Oceanography, 191, 102510.
Goto, S., Y. Tada, K. Suzuki, and Y. Yamashita (2020) Evaluation of the production of dissolved organic
matter by three marine bacterial strains. Frontiers in Microbiology, 11, 584419.
Miyazaki, Y., K. Suzuki, E. Tachibana, Y. Yamashita, A. Müller, K. Kawana, and J. Nishioka (2020) New
index of organic mass enrichment in sea spray aerosols linked with senescent status in marine
phytoplankton. Scientific Reports, 10, 17042.
Nishioka, J., H. Obata, H. Ogawa, K. Ono, Y. Yamashita, K. Lee, S. Takeda, and I. Yasuda (2020)
Subpolar marginal seas fuel the North Pacific through the intermediate water at the termination of the
global ocean circulation. Proceedings of the National Academy of Sciences of the United States ofAmerica, 117,12665-12673.
Hirawake, T., M. Uchida, H. Abe, I.D. Alabia, T. Hoshino, S. Masumoto, A. Mori, J. Nishioka, B.
Nishizawa, A. Ooki, A. Takahashi, Y. Tanabe, M. Tojo, M. Tsuji, H. Ueno, H. Waga, Y. Watanabe, A.
Yamaguchia, and Y. Yamashita (2021) Response and biodiversity of Arctic ecosystems toenvironmental change: Findings from the ArCS project. Polar Science, 27, 100533.
Yamashita, Y., J. Nishioka, H. Obata, and H. Ogawa (2020) Shelf humic substances as carriers for basinscale iron transport in the North Pacific. Scientific Reports, 10, 4505.
Hooker, S.B., A. Matsuoka, R.M. Kudela, Y. Yamashita, K. Suzuki, and H.F. Houskeeper (2020) A global
end-member approach to derive aCDOM(440) from near-surface optical measurements. Biogeosciences,17, 475-497.
Yamashita, Y., Y. Yagi, H. Ueno, A. Ooki, and T. Hirawake (2019) Characterization of the water masses
in the shelf region of the Bering and Chukchi Seas with fluorescent organic matter. Journal ofGeophysical Research: Oceans, 124, 7545-7556.
Fujiyoshi, L., A. Sugimoto, Y. Yamashita, and X. Li (2019) Influence of soil N availability on the
difference between tree foliage and soil δ15N from comparison of Mongolia and northern Japan.
Ecological Indicators, 101, 1086-1093.
Miyazaki, Y., Y. Yamashita, K. Kawana, E. Tachibana, S. Kagami, M. Mochida, K. Suzuki, and J.
Nishioka (2018) Chemical transfer of dissolved organic matter from surface seawater to sea spraywater-soluble organic aerosol in the marine atmosphere. Scientific Reports, 8, 14861.

Plancq, J., J.L. McColl, J.A. Bendle, O. Seki, J.M. Couto, A.C.G. Henderson, Y. Yamashita, K.
Kawamura, and J.L. Toney (2018) Genomic identification of the long-chain alkenone producer infreshwater Lake Toyoni, Japan: implications for temperature reconstructions. Organic Geochemistry,
125, 189-195.
Mizuno, Y., J. Nishioka, T. Tanaka, Y. Tada, K. Suzuki, Y. Tsuzuki, A. Sugimoto, and Y. Yamashita(2018) Determination of the freshwater origin of Coastal Oyashio Water using humic-like fluorescencein dissolved organic matter. Journal of Oceanography, 74, 509-521.
Tada, Y., R. Nakaya, S. Goto, Y. Yamashita, and K. Suzuki (2017) Distinct bacterial community anddiversity shifts after phytoplankton-derived dissolved organic matter addition in a coastal environment.
Journal of Experimental Marine Biology and Ecology, 495, 119-128.
Nakane, M., T. Ajioka, and Y. Yamashita (2017) Distribution and sources of dissolved black carbon insurface waters of the Chukchi Sea, Bering Sea, and the North Pacific Ocean. Frontiers in Earth
Science, 5, 34.
Yamashita, Y., F. Hashihama, H. Saito, H. Fukuda, and H. Ogawa (2017) Factors controlling thegeographical distribution of fluorescent dissolved organic matter in the surface waters of the Pacific
Ocean. Limnology and Oceanography, 62, 2360-2374.
Goto, S., Y. Tada, K. Suzuki, and Y. Yamashita (2017) Production and reutilization of fluorescentdissolved organic matter by a marine bacterial strain, Alteromonas macleodii. Frontiers in
Microbiology, 8, 507.
Nosaka, Y., Y. Yamashita, and K. Suzuki (2017) Dynamics and origin of transparent exopolymer
particles in the Oyashio region of the western subarctic Pacific during the spring diatom bloom.
Frontiers in Marine Science, 4, 79.
Tanaka, K., N. Takesue, J. Nishioka, Y. Kondo, A. Ooki, K. Kuma, T. Hirawake, and Y. Yamashita(2016) The conservative behavior of dissolved organic carbon in surface waters of the southern
Chukchi Sea, Arctic Ocean, during early summer. Scientific Reports, 6, 34123.
Lu, C.-J., R. Benner, C.G. Fichot, H. Fukuda, Y. Yamashita, and H. Ogawa (2016) Sources andtransformations of dissolved lignin phenols and chromophoric dissolved organic matter in Otsuchi Bay,
Japan. Frontiers in Marine Science, 3, 85.
Yamashita, Y., C.G. Fichot, Y. Shen, R. Jaffé, and R. Benner (2015) Linkages among fluorescentdissolved organic matter, dissolved amino acids and lignin-derived phenols in a river-influenced ocean
margin. Frontiers in Marine Science, 2, 92.
Yamashita, Y., C.-J. Lu, H. Ogawa, J. Nishioka, H. Obata, and H. Saito (2015) Application of in situ
fluorometer to determine the distribution of fluorescent dissolved organic matter in the open ocean.
Marine Chemistry, 177, 298-305.
Fu, P., K. Kawamura, J. Chen, M. Qin, L. Ren, Y. Sun, Z. Wang, L. Barrie, E. Tachibana, A. Ding, and Y.
Yamashita (2015) Fluorescent water-soluble organic aerosols in the High Arctic atmosphere.
Scientific Reports, 5, 9845.
Yamashita, Y., L.S. McCallister, B.P. Koch, M. Gonsior, and R. Jaffé (2015) Dynamics of dissolved
organic matter in fjord ecosystems: Contributions of terrestrial dissolved organic matter in the deep
layer. Estuarine, Coastal and Shelf Science, 159, 37-49.

Lu, Y., J.W. Edmonds, Y. Yamashita, B. Zhou, A. Jaegge, and M. Baxley (2015) Spatial Variation in theOrigin and Reactivity of Dissolved Organic Matter in Oregon-Washington Coastal Waters. Ocean
Dynamics, 65, 17-32.
Ding, Y., Y. Yamashita, J. Jones, and R. Jaffé (2015) Dissolved black carbon in boreal forest and glacial
rivers of central Alaska: Assessment of biomass burning vs. anthropogenic sources. Biogeochemistry,
123, 15-25.
Hioki, N., K. Kuma, Y. Morita, R. Sasayama, A. Ooki, Y. Kondo, H. Obata, J. Nishioka, Y. Yamashita, S.
Nishino, T. Kikuchi, and M. Aoyama (2014) Laterally spreading iron, humic-like dissolved organic
matter and nutrients in cold, dense subsurface water of the Arctic Ocean. Scientific Reports, 4, 6775.
Tanaka, K., K. Kuma, K. Hamasaki, and Y. Yamashita (2014) Accumulation of humic-like fluorescentdissolved organic matter in the Japan Sea. Scientific Reports, 4, 5292.
Maie, N., S. Sekiguchi, A. Watanabe, K. Tsutsuki, Y. Yamashita, L. Melling, K. Cawley, E. Shima, R.
Jaffé (2014) Dissolved organic matter dynamics in the oligo/meso-haline zone of wetland-influenced
coastal rivers. Journal of Sea Research, 91, 58-69.
Lu, Y., J.E. Bauer, E.A. Canuel, R.M. Chambers, Y. Yamashita, R. Jaffé, and A. Barrett (2014) Effects ofland use on sources and ages of inorganic and organic carbon in temperate headwater streams.
Biogeochemistry, 119, 275-292.
Romera-Castillo, C., M. Chen, Y. Yamashita, and R. Jaffé (2014) Fluorescence characteristics of sizefractionated dissolved organic matter: Implications for a molecular assembly based structure? Water
Research, 55, 40-51.
Cawley, K.M., Y. Yamashita, N. Maie, and R. Jaffé (2014) Using Optical Properties to Quantify Fringe
Mangrove Inputs to the Dissolved Organic Matter (DOM) Pool in a Subtropical Estuary. Estuaries andCoasts, 37, 399-410.
Yamashita, Y., Y. Nosaka, K. Suzuki, H. Ogawa, K. Takahashi, and H. Saito (2013) Photobleaching as afactor controlling spectral characteristics of chromophoric dissolved organic matter in open ocean.
Biogeosciences, 10, 7207-7217.
Yamashita, Y., J.N. Boyer, and R. Jaffé (2013) Evaluating the distribution of terrestrial dissolved organic
matter in a complex coastal ecosystem using fluorescence spectroscopy. Continental Shelf Research,
66, 136-144.
Kanda, J., M. Ishii, H. Ogawa, T. Ono, H. Obata, M. Yamamoto-Kawai, M. Suzumura, M.C. Honda, Y.
Yamashita, Y.W. Watanabe (2013) Decadal Vision in Oceanography (II) -Discussions in the chemical
oceanography subgroup of the future planning committee, The Oceanographic Society of JapanOceanography in Japan, 22, 219-251. (Japanese with English abstract)
Lu, Y., J.E. Bauer, E.A. Canuel, Y. Yamashita, R.M. Chambers, and R. Jaffé (2013) Photochemical andmicrobial alteration of dissolved organic matter in temperate headwater streams associated withdifferent land use. Journal of Geophysical Research: Biogeosciences, 118, 566–580.
Ding, Y., Y. Yamashita, W.K. Dodds, and R. Jaffé (2013) Dissolved black carbon in grassland streams: Is
there an effect of recent fire history? Chemosphere, 90, 2557–2562.

Jaffé, R., Y. Yamashita, N. Maie, W.T. Cooper, T. Dittmar, W.K. Dodds, J.B. Jones, T. Myoshi, J.R. OrtizZayas, D.C. Podgorski, and A. Watanabe (2012) Dissolved organic matter in headwater streams:
Compositional variability across climatic regions of North America. Geochimica Cosmochimica Acta,
94, 95-108.
Maie, N., Y. Yamashita, R.M. Cory, J.N. Boyer, R. Jaffé (2012) Application of excitation emission
matrix fluorescence monitoring in the assessment of spatial and seasonal drivers of dissolved organic
matter composition: Sources and physical disturbance controls. Applied Geochemistry, 27 917-929.
Yamashita, Y., B.D. Kloeppel, J. Knoepp, G.L. Zausen, and R. Jaffé (2011) Effects of watershed history
on dissolved organic matter characteristics in headwater streams. Ecosystems, 14, 1110-1122.
Pisani, O., Y. Yamashita, and R. Jaffé (2011) Photo-dissolution of flocculent, detrital material in aquatic
environments: Contributions to the dissolved organic matter pool. Water Research, 45, 3836-3844.
Yamashita, Y., A. Panton, C. Mahaffey and R. Jaffé (2011) Assessing the spatial and temporalvariability of dissolved organic matter in Liverpool Bay using excitation–emission matrix fluorescenceand parallel factor analysis. Ocean Dynamics, 61, 569-579.
Shank, G.C., A. Evans, Y. Yamashita and R. Jaffé (2011) Solar radiation-enhanced dissolution ofparticulate organic matter from coastal marine sediments. Limnology and Oceanography, 56, 577-588.
Yamashita, Y., L.J. Scinto, N. Maie, and R. Jaffé (2010) Dissolved organic matter characteristics acrossa subtropical wetland’s landscape: application of optical properties in the assessment of environmental
dynamics. Ecosystems, 13, 1006-1019.
Yamashita, Y., R. M. Cory, J. Nishioka, K. Kuma, E. Tanoue and R. Jaffé (2010) Fluorescencecharacteristics of dissolved organic matter in the deep waters of the Okhotsk Sea and the northwestern
North Pacific Ocean. Deep-Sea Research Part II, 57, 1478-1488.
Nagata, T., C. Tamburini, J. Arístegui, F. Baltar, A. Bochdansky, S. Fonda-Umani, H. Fukuda, A. Gogou,
D.A. Hansell, R.L. Hansman, G.J. Herndl, C. Panagiotopoulos, T. Reinthaler, R. Sohrin, P. Verdugo,
N. Yamada, Y. Yamashita, T. Yokokawa and D. H. Bartlett (2010) Emerging concepts on microbial
processes in the bathypelagic ocean – ecology, biogeochemistry, and genomics. Deep-Sea ResearchPart II, 57, 1519-1536.
Chen, M., R.M. Price, Y. Yamashita and R. Jaffé (2010) Comparative study of dissolved organic matterfrom groundwater and surface water in the Florida coastal Everglades using multi-dimensional
spectrofluorometry combined with multivariate statistics. Applied Geochemistry, 25, 872-880.
Williams, C.J., Y. Yamashita, H. F. Wilson, R. Jaffé and M. A. Xenopoulos (2010) Unraveling the roleof land use and microbial activity in shaping dissolved organic matter characteristics in stream
ecosystems. Limnology and Oceanography 55: 1159-1171.
Yamashita, Y., N. Maie, H. Briceño and R. Jaffé (2010) Optical characterization of dissolved organic
matter in tropical rivers of the Guayana Shield, Venezuela. Journal of Geophysical Research 105:
G00F10.
Yamashita, Y. (2010) Studies on characteristics and dynamics of chromophoric dissolved organic matter(CDOM) in the ocean. Oceanography in Japan 19: 41-56. (Japanese with English abstract)

Santín, C., Y. Yamashita, X.L. Otero, M.Á. Álvarez and R. Jaffé (2009) Characterizing humic
substances from estuarine soils and sediments by excitation-emission matrix spectroscopy and parallelfactor analysis. Biogeochemistry 69: 131-147.
Yamashita, Y. and E. Tanoue (2009) Basin scale distribution of chromophoric dissolved organic matterin the Pacific Ocean. Limnology and Oceanography 54: 598-609.
Yamashita, Y. and R. Jaffé (2008) Characterizing the interactions between trace metal and dissolved
organic matter using excitation-emission matrix and parallel factor analysis. Environmental Scienceand Technology 42: 7374-7379.
Yamashita, Y. and E. Tanoue (2008) Production of bio-refractory fluorescent dissolved organic matter inthe ocean interior. Nature Geoscience 1: 579-582.
Yamashita, Y., R. Jaffé, N. Maie and E. Tanoue (2008) Assessing the dynamics of dissolved organic
matter (DOM) in coastal environments by excitation emission matrix fluorescence and parallel factor
analysis (EEM-PARAFAC). Limnology and Oceanography 53: 1900-1908.
Yamashita, Y., A. Tsukasaki, T. Nishida and E. Tanoue (2007) Distribution of chromophoric dissolved
organic matter in the Southern Ocean. Marine Chemistry 106: 498-509.
Yamashita, Y. and E. Tanoue (2006) Quantitative and qualitative characteristics of chromophoric
dissolved organic matter in Pacific subarctic and subtropical surface waters. Research in Organic
Geochemistry 21: 13-22.
Yamashita, Y. and E. Tanoue (2004) In situ production of chromophoric dissolved organic matter incoastal environments. Geophysical Research Letters 31: L14302.
Yamashita, Y. and E. Tanoue (2004) Chemical characteristics of amino acid-containing dissolved
organic matter in seawater. Organic Geochemistry 35: 679-692.
Takata, H., K. Kuma, S. Iwade, Y. Yamajyoh, A. Yamaguchi, S. Takagi, K. Sasaoka, Y. Yamashita, E.
Tanoue, T. Midorikawa, K. Kimura and J. Nishioka (2004) Source of Fe(III)-complexing organic
ligands in the surface water of the northwestern North Pacific Ocean. Marine Chemistry 86: 139-157.
Tani, H., J. Nishioka, K. Kuma, H. Takata, Y. Yamashita, E. Tanoue and T. Midorikawa (2003) Iron
(III) hydroxide solubility and humic-type fluorescent organic matter in the deep water column of the
Okhotsk Sea and the northwestern North Pacific Ocean. Deep Sea Research Part I 50: 1063-1078.
Yamashita, Y. and E. Tanoue (2003) Chemical characterization of protein-like fluorophores in DOM in
relation to aromatic amino acids Marine Chemistry 82: 255-271.
Yamashita, Y. and E. Tanoue (2003) Distribution and alteration of amino acids in bulk DOM along atransect from bay to oceanic waters. Marine Chemistry 82: 145-160.
Tanaka, G., Y. Yamashita and K. Nakabayashi (2001) Effect of Supersaturation of Dissolved Oxygen on
the Growth of Tomato Plants and Nutrient Uptake in Hydroponic Culture. Shokubutsu Kojo Gakkaishi
13: 21-28. (Japanese with English abstract)

Professional service:・Limnology: Associate Editor (April, 2013 – December, 2016)
・Scientific Reports: Editorial Board Member (May, 2015 – present)
・Frontiers in Microbiology: Topic Editor (December, 2019 – May, 2015)
・Frontiers in Earth Science / Environmental Science: Topic Editor (May, 2022 – May, 2023)
・Peer review for scientific journal articles: ACS Earth and Space Chemistry, Applied Geochemistry,
Aquatic Ecology, Aquatic Microbial Ecology, Aquatic Sciences, Biogeochemistry, Biogeosciences,
Chemosphere, Continental Shelf Research, Deep Sea Research Part I, Ecological Research,
Environmental Chemistry Letters, Environmental Microbiology, Environmental Pollution,
Environmental Science and Technology, Frontiers in Earth Science, Frontiers in Marine Science,
Frontiers in Microbiology, Fundamental and Applied Limnology, Geochemical Journal, Geochimica
et Cosmochimica Acta, Geophysical Research Letters, Global Biogeochemical Cycles, Humic
Substances Research, Hydrobiologia, Inland Waters, Journal of Environmental Quality, Journal ofGeophysical Research, Journal of Hazardous Materials, Journal of Marine Systems, Journal of
Oceanography, Journal of Soils and Sediments, Limnology, Limnology and Oceanography, Marine
Chemistry, Marine Ecology Progress Series, Nature Communications, Nature Geoscience,
Proceedings of the National Academy of Sciences of the United States of America, Progress in
Oceanography, PLOS ONE, Science of the Total Environment, Scientific Data, Scientific Reports,
Water Research・Peer review for grant proposals: JSPS (Japan), NSF Chemical Oceanography (USA), Water Resources
Research Institute of The University of North Carolina (USA), NERC (UK), Veni scheme, NWO(Netherlands), Deutsche Forschungsgemeinschaft (Germany)
Field and cruise experiences:2023: Sea of Okhotsk, R/V Shinsei-maru (KS-23-15), JAMSTEC
2022: Myojin Knoll Caldera, R/V Shinsei-maru (KS-22-16), JAMSTEC
2022: Sea of Okhotsk, R/V Shinsei-maru (KS-22-6), JAMSTEC
2021-: Chubetsu River, Hokkaido, Japan
2021: Kushiro River, Hokkaido, Japan
2021: Sea of Okhotsk, R/V Shinsei-maru (KS-21-6), JAMSTEC
2019-2020: Ishikari River, Hokkaido, Japan
2019: South Pacific, R/V Hakuho-maru (KH-19-6), JAMSTEC
2019: Akkeshi Bay, Misago-maru, Hokkaido University
2019: Western North Pacific, T/S Oshoro-maru (C073), Hokkaido University
2018: Western North Pacific and Bering Sea, R/V Prof. Multanovskiy, FERHRI
2017: Subtropical North Pacific, R/V Hakuho-maru (KH-17-4), JAMSTEC
2016: Subtropical western North Pacific, R/V Shinsei-maru (KS-16-9), JAMSTEC
2015: Kuroshio region, R/V Hakuho-maru (KH-15-4), JAMSTEC
2015: Oyashio and Coastal Oyashio regions, R/V Hakuho-maru (KH-15-1), JAMSTEC
2014: Akkeshi Bay, Misago-maru, Hokkaido University
2014: Central North Pacific, Bering Sea, Chukchi Sea, R/V Hakuho-maru (KH-14-3), JAMSTEC
2014: East kamuchatska Current and Kuril Island region, R/V Prof. Multanovskiy, FERHRI
2014: Central South Pacific, R/V Hakuho-maru (KH-13-7), JAMSTEC
2013: Western North Pacific, R/V Shinsei-maru (KS-13-T3), JAMSTEC
2013: Chukchi Sea and Bering Sea, T/S Oshoro-maru (C255), Hokkaido University
2012: Subtropical to subarctic North Pacific, R/V Hakuho-maru (KH-12-3), JAMSTEC
2011: Indigirka River, Eastern Siberia, Russia
2011-2013: Uryuu Experimental Forests, Hokkaido, University, Hokkaido, Japan
2011: Subarctic western North Pacific, R/V Tansei-maru (KT-11-7), JAMSTEC
2010-2016: Tomakomai Experimental Forests, Hokkaido, University, Hokkaido, Japan
2010-2013: Lake Toyoni, Hokkaido, Japan

2010: Subarctic western North Pacific, FR/V Wakataka-maru (WK0006), FRA
2009: Bonanza Creek-LTER site and Tanana River, Alaska, USA
2009: Konza Prairie-LTER site, Kansas, USA
2008-2009: Coweeta-LTER site, North Carolina, USA
2007-2011: Florida Coastal Everglades-LTER site, Florida, USA
2006: Sagami Bay and subtropical western North Pacific, R/V Tansei-maru (KT-06-28), JAMSTEC
2005: Equatorial to subarctic North Pacific, R/V Hakuho-maru (KH-05-2), JAMSTEC
2004: Subtropical South Pacific to equatorial Pacific, R/V Hakuho-maru (KH-04-5), JAMSTEC
2004: Lake Biwa and its catchments, R/V Hakken-go, Lake Biwa Research Institute, Shiga, Japan
2004: Ise Bay, T/S Seisui-maru (SE-04-22), Mie University
2003: Subtropical and subarctic North Pacific, R/V Hakuho-maru (KH-03-2), University of Tokyo
2003: Ise Bay, T/S Seisui-maru (SE-03-12), Mie University
2002: Sagami Bay and subtropical western North Pacific, R/V Tansei-maru (KT-02-10), University ofTokyo
2002: Otsuchi Bay and its catchments, International Coastal Research Center, University of Tokyo, Iwate,Japan
2001: Ise Bay to off the Kuroshio Current, R/V Tansei-maru (KT-01-17), Mie University
2001: Ise Bay to off the Kuroshio Current, T/S Seisui-maru (SE-01-02), Mie University
2000: Ise Bay to off the Kuroshio Current, R/V Tansei-maru (KT-00-13), University of Tokyo
2000: Sagami Bay and subtropical western North Pacific, R/V Tansei-maru (KT-00-12), University ofTokyo
2000: Ise Bay to off the Kuroshio Current, T/S Seisui-maru (SE-00-06), Mie University