Researcher Information
researchmap URL
Research Areas
Research History
- Apr. 2024 - Present
Tohoku University & JAMSTEC Advanced Institute for Marine Ecosystem Change, WPI-AIMEC Researcher - Apr. 2019 - Present
Japan Agency for Marine-Earth Science and Technology, Earth Surface System Research Center, Senior Researcher - Oct. 2023 - Sep. 2024
Monterey Bay Aquarium Research Institute (MBARI), Visting Scientist - Apr. 2014 - Mar. 2019
Japan Agency for Marine-Earth Science and Technology, Research and Development Center for Global Change, Senior Research Scientist - Apr. 2015 - Mar. 2018
Soka University, Faculty of Education, Lecturer - Apr. 2013 - Mar. 2014
Japan Agency for Marine-Earth Science and Technology, Research Institute for Global Change, Senior Researcher - Apr. 2010 - Mar. 2013
Japan Agency for Marine-Earth Science and Technology, Research Institute for Global Change, Researcher - Nov. 2005 - Mar. 2010
Japan Agency for Marine-Earth Science and Technology, Mutsu Institute for Oceanography, Researcher - Jul. 2003 - Oct. 2005
Japan Science and Technology Agency, Post-doctoral Fellow - Jul. 2003 - Aug. 2003
Rutgers, State University of New Jersey, Institute of Marine and Coastal Sciences, Visiting Research Scientist - Aug. 2002 - Jun. 2003
Nagoya University, Hydrospheric Atmospheric Research Center, Post-doctoral Fellow - Apr. 2002 - Aug. 2002
Soka University, Faculty of Engineering, Post-doctoral Fellow
Education
- Apr. 1999 - Mar. 2002, Soka University, Graduate School of Engineering, Laboratory of Biological Oceanography
- Apr. 1997 - Mar. 1999, Soka University, Graduate School of Engineering, Laboratory of Biological Oceanography
- Apr. 1993 - Mar. 1997, Soka University, Faculty of Engineering, Department of Bioengineering
Committee Memberships
- Apr. 2025 - Present
評議員, 日本プランクトン学会 - Oct. 2024 - Present
副会長, 日本海洋学会 海洋生物研究会 - Jan. 2024 - Present
委員, 日本学術会議IMBeR小委員会 - Oct. 2023 - Present
Working Group 168 (Full Member), Scientific Committee on Oceanic Research (SCOR) - Sep. 2023 - Present
Member, Biogeochemical-Argo Scientific Technology Task Team - Feb. 2023 - Present
委員, IOC協力推進委員会 海洋環境・生物国内専門部会 - Oct. 2022 - Present
運営委員, 日本海洋学会 海洋生物研究会 - Nov. 2021 - Present
Scientific Expert, G7 Future of the Seas and Oceans Initiative Resource Strategy Group for BGC Argo Array 2030 - May 2016 - Present
Scientific Steering Committee Member, Biogeochemical-Argo - Mar. 2016 - Present
Member of Panel for Ocean Breakthrough Studies, The Oceanographic Society of Japan - Apr. 2015 - Present
Editor, Plankton and Benthos Research - Oct. 2018 - Oct. 2023
Working Group 156 (Full Member), Scientific Committee on Oceanic Research (SCOR) - Feb. 2019 - Mar. 2023
委員, 海底資源利用促進技術開発プログラム 海洋情報把握技術開発「BGC-Argo搭載自動連続炭酸系計測システムの開発」助言委員会 - Apr. 2016 - Dec. 2017
International Scientific Steering Committee Member, AQUAFLUO II
Research activity information
Papers
- Masahide Wakita; Akira Nagano; Hiroshi Uchida; Yoshiyuki Nakano; Katsunori Kimoto; Masahito Shigemitsu; Kana Nagashima; Fumikazu Taketani; Tetsuichi Fujiki; Maki Noguchi-Aita; Kosei Sasaoka; Tsuneo Ono; Toshihiko Takemura
Ocean acidification and changes in biological production in the western subarctic region of the North Pacific over the quarter century, 1999–2023
Progress in Earth and Planetary Science, 14 Feb. 2026
13, 1 - C. Yoshikawa; H. Yamaguchi; N.O. Ogawa; A. Makabe; M. Sato; Y. Mino; K. Matsumoto; Y. Nakano; S. Kawagucci; T. Fujiki; N. Harada; M. Kawachi; N. Ohkouchi
Nitrogenous sources for summertime phytoplankton at two contrasting stations in the subarctic and subtropical western North Pacific
Progress in Oceanography, Jan. 2026
240, 103614, 103614 - Takahito Ikenoue; Nanako O. Ogawa; Hidetaka Nomaki; Katsunori Kimoto; Makio C. Honda; Naohiko Ohkouchi; Tetsuichi Fujiki
New evaluation of vertical particulate organic carbon fluxes of submillimeter-sized phaeodarians in the mesopelagic twilight zone of the western North Pacific Ocean
Progress in Earth and Planetary Science, 10 Sep. 2025
[Reviewed] - Aya Yamamoto Hoshihara; Tetsuichi Fujiki; Tetsuro Ikuta; Shinji Shimode; Youta Sugai; Victor S. Kuwahara
Three-dimensional micro-mapping of microorganisms in the plastisphere using laser scanning confocal fluorescence microscopy
Harmful Algae, Sep. 2025
148, 102914, 102914 - Kana Nagashima; Hajime Kawakami; Koji Sugie; Tetsuichi Fujiki; Jun Nishioka; Yoko Iwamoto; Toshihiko Takemura; Takuma Miyakawa; Fumikazu Taketani; Maki Noguchi Aita
Asian dust-deposition flux to the subarctic Pacific estimated using single quartz particles
Scientific Reports, 29 Sep. 2023
13, 1
[Reviewed] - Phillipe D. TORTELL; Nina SCHUBACK; David J. SUGGETT; Ilana BERMAN-FRANK; Douglas A. CAMPBELL; Aurea M. CIOTTI; Zachary K. ERICKSON; Tetsuichi FUJIKI; Kimberly HALSEY; Anna HICKMAN; Maxim Y. GORBUNOV; David J. HUGHES; Zbigniew KOLBER; Mark C. MOORE; Kevin OXBOROUGH; Ondřej PRÁŠIL; Charlotte M; ROBINSON; Thomas J; RYAN-KEOGH; Greg SILSBE; Stefan SIMIS; Sandy THOMALLA; Deepa R. VARKEY
Application of single turnover active chlorophyll fluorescence for phytoplankton productivity measurements
SCOR Working Group 156 User Guide, Jun. 2023 - Chisato Yoshikawa; Nanako O. Ogawa; Yoshito Chikaraishi; Akiko Makabe; Yohei Matsui; Yoshikazu Sasai; Masahide Wakita; Makio C. Honda; Yoshihisa Mino; Maki N. Aita; Tetsuichi Fujiki; Takuro Nunoura; Naomi Harada; Naohiko Ohkouchi
Nitrogen Isotopes of Sinking Particles Reveal the Seasonal Transition of the Nitrogen Source for Phytoplankton
Geophysical Research Letters, 16 Sep. 2022
49, 17
[Reviewed] - Aya Yamamoto Hoshihara; Tetsuichi Fujiki; Satoka Shigeoka; Makoto Hirayama
Physiological response of the symbiotic dinoflagellate Pelagodinium beii to ultraviolet radiation: synthesis and accumulation of mycosporine-like amino acids
SYMBIOSIS, Apr. 2022
86, 3, 281, 292
[Reviewed] - Haruka Takagi; Katsunori Kimoto; Tetsuichi Fujiki
Photosynthetic Carbon Assimilation and Electron Transport Rates in Two Symbiont-Bearing Planktonic Foraminifera
FRONTIERS IN MARINE SCIENCE, Mar. 2022
9
[Reviewed] - Tetsuichi Fujiki; Shigeki Hosoda; Naomi Harada
Phytoplankton blooms in summer and autumn in the northwestern subarctic Pacific detected by the mooring and float systems
Journal of Oceanography, 08 Jan. 2022
[Reviewed] - Akira Nagano; Masahide Wakita; Tetsuichi Fujiki; Hiroshi Uchida
El Niño‐related vertical mixing enhancement under the winter mixed layer at western subarctic North Pacific station K2
Journal of Geophysical Research: Oceans, 21 Oct. 2021
[Reviewed] - Ryo Dobashi; Hiromichi Ueno; Nozomi Matsudera; Isao Fujita; Tetsuichi Fujiki; Makio C. Honda; Naomi Harada
Impact of mesoscale eddies on particulate organic carbon flux in the western subarctic North Pacific
Journal of Oceanography, 01 Oct. 2021
[Reviewed] - Nina Schuback; Philippe D. D. Tortell; Ilana Berman-Frank; Douglas A. A. Campbell; Aurea Ciotti; Emilie Courtecuisse; Zachary K. K. Erickson; Tetsuichi Fujiki; Kimberly Halsey; Anna E. E. Hickman; Yannick Huot; Maxime Y. Y. Gorbunov; David J. J. Hughes; Zbigniew S. S. Kolber; C. Mark Moore; Kevin Oxborough; Ondrej Prasil; Charlotte M. M. Robinson; Thomas J. J. Ryan-Keogh; Greg Silsbe; Stefan Simis; David J. J. Suggett; Sandy Thomalla; Deepa R. R. Varkey
Single-Turnover Variable Chlorophyll Fluorescence as a Tool for Assessing Phytoplankton Photosynthesis and Primary Productivity: Opportunities, Caveats and Recommendations
FRONTIERS IN MARINE SCIENCE, Jul. 2021
8
[Reviewed] - Junya HIRAI; Masaki MIYA; Tetsuichi FUJIKI; Akira YOSHIDA; Shigeyoshi OTOSAKA; Hideki KAERIYAMA; Shinichiro KAKO; Tomoya KATAOKA; Daisuke MATSUOKA; Mitsuko HIDAKA; Daisuke SUGIYAMA; Fujio KOJIMA
Decadal vision in oceanography 2021: New methods and problems
Oceanography in Japan, 2021
30, 5, 227, 253
[Reviewed] - Yoshihisa Mino; Chiho Sukigara; M. C. Honda; H. Kawakami; Masahide Wakita; K. Sasaoka; Chisato Yoshikawa; O. Abe; Jan Kaiser; Katsunori Kimoto; M. Kitamura; Tetsuichi Fujiki; K. Matsumoto; T. Saino
Seasonal and Interannual Variations in Nitrogen Availability and Particle Export in the Northwestern North Pacific Subtropical Gyre
Journal of Geophysical Research: Oceans, May 2020
125, 5
[Reviewed] - Tetsuichi Fujiki; Ryuichiro Inoue; Makio C. Honda; Masahide Wakita; Yoshihisa Mino; Chiho Sukigara; Osamu Abe
Time‐series observations of photosynthetic oxygen production in the subtropical western North Pacific by an underwater profiling buoy system
Limnology and Oceanography, May 2020
65, 5, 1072, 1084
[Reviewed] - Florian Breider; Chisato Yoshikawa; Akiko Makabe; Sakae Toyoda; Masahide Wakita; Yohei Matsui; Shinsuke Kawagucci; Naomi Harada; Naohiro Yoshida
Response of N2O production rate to ocean acidification in the western North Pacific
Nature Climate Change, Dec. 2019
9, 12, 954, 958
[Reviewed] - Dean Roemmich; Matthew H. Alford; Hervé Claustre; Kenneth Johnson; Brian King; James Moum; Peter Oke; W. Brechner Owens; Sylvie Pouliquen; Sarah Purkey; Megan Scanderbeg; Toshio Suga; Susan Wijffels; Nathalie Zilberman; Dorothee Bakker; Molly Baringer; Mathieu Belbeoch; Henry C. Bittig; Emmanuel Boss; Paulo Calil; Fiona Carse; Thierry Carval; Fei Chai; Diarmuid Ó. Conchubhair; Fabrizio d’Ortenzio; Giorgio Dall’Olmo; Damien Desbruyeres; Katja Fennel; Ilker Fer; Raffaele Ferrari; Gael Forget; Howard Freeland; Tetsuichi Fujiki; Marion Gehlen; Blair Greenan; Robert Hallberg; Toshiyuki Hibiya; Shigeki Hosoda; Steven Jayne; Markus Jochum; Gregory C. Johnson; KiRyong Kang; Nicolas Kolodziejczyk; Arne Körtzinger; Pierre-Yves Le Traon; Yueng-Djern Lenn; Guillaume Maze; Kjell Arne Mork; Tamaryn Morris; Takeyoshi Nagai; Jonathan Nash; Alberto Naveira Garabato; Are Olsen; Rama Rao Pattabhi; Satya Prakash; Stephen Riser; Catherine Schmechtig; Claudia Schmid; Emily Shroyer; Andreas Sterl; Philip Sutton; Lynne Talley; Toste Tanhua; Virginie Thierry; Sandy Thomalla; John Toole; Ariel Troisi; Thomas W. Trull; Jon Turton; Pedro Joaquin Velez-Belchi; Waldemar Walczowski; Haili Wang; Rik Wanninkhof; Amy F. Waterhouse; Stephanie Waterman; Andrew Watson; Cara Wilson; Annie P. S. Wong; Jianping Xu; Ichiro Yasuda
On the Future of Argo: A Global, Full-Depth, Multi-Disciplinary Array
Frontiers in Marine Science, 02 Aug. 2019
6, 439
[Reviewed] - Takahito Ikenoue; Katsunori Kimoto; Yusuke Okazaki; Miyako Sato; Makio C. Honda; Kozo Takahashi; Naomi Harada; Tetsuichi Fujiki
Phaeodaria: An Important Carrier of Particulate Organic Carbon in the Mesopelagic Twilight Zone of the North Pacific Ocean
Global Biogeochemical Cycles, Aug. 2019
33, 8, 1146, 1160
[Reviewed] - Haruka TAKAGI; Katsunori KIMOTO; Tetsuichi FUJIKI; Hiroaki SAITO; Christiane SCHMIDT; Michal KUCERA; Kazuyoshi MORIYA
Characterizing photosymbiosis in modern planktonic foraminifera
Biogeosciences, 2019
16, 17, 3377, 3396
[Reviewed] - Chiho SUKIGARA; Yoshihisa MINO; Hajime KAWAKAMI; Makio C. HONDA; Tetsuichi FUJIKI; Kazuhiko MATSUMOTO; Masahide WAKITA; Toshiro SAINO
Sinking dynamics of particulate matter in the subarctic and subtropical regions of the western North Pacific
Deep Sea Research I, 2019
144, 17, 27
[Reviewed] - Keisuke Shimizu; Katsunori Kimoto; Koji Noshita; Masahide Wakita; Tetsuichi Fujiki; Takenori Sasaki
Phylogeography of the pelagic snail Limacina helicina (Gastropoda: Thecosomata) in the subarctic western North Pacific
Journal of Molluscan Studies, 01 Feb. 2018
84, 1, 30, 37
[Reviewed] - Haruka Takagi; Katsunori Kimoto; Tetsuichi Fujiki; Kazuyoshi Moriya
Effect of nutritional condition on photosymbiotic consortium of cultured Globigerinoides sacculifer (Rhizaria, Foraminifera)
Symbiosis, 09 Dec. 2017
76, 1, 1, 15
[Reviewed] - Makio C. Honda; Masahide Wakita; Kazuhiko Matsumoto; Tetsuichi Fujiki; Eko Siswanto; Kosei Sasaoka; Hajime Kawakami; Yoshihisa Mino; Chiho Sukigara; Minoru Kitamura; Yoshikazu Sasai; Sherwood L. Smith; Taketo Hashioka; Chisato Yoshikawa; Katsunori Kimoto; Shuichi Watanabe; Toru Kobari; Toshi Nagata; Koji Hamasaki; Ryo Kaneko; Mario Uchimiya; Hideki Fukuda; Osamu Abe; Toshiro Saino
Comparison of carbon cycle between the western Pacific subarctic and subtropical time-series stations: highlights of the K2S1 project
JOURNAL OF OCEANOGRAPHY, Oct. 2017
73, 5, 647, 667
[Reviewed] - Masahide Wakita; Akira Nagano; Tetsuichi Fujiki; Shuichi Watanabe
Slow acidification of the winter mixed layer in the subarctic western North Pacific
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Aug. 2017
122, 8, 6923, 6935
[Reviewed] - Yoshihisa Mino; Chiho Sukigara; Makio C. Honda; Hajime Kawakami; Kazuhiko Matsumoto; Masahide Wakita; Minoru Kitamura; Tetsuichi Fujiki; Kosei Sasaoka; Osamu Abe; Jan Kaiser; Toshiro Saino
Seasonal variations in the nitrogen isotopic composition of settling particles at station K2 in the western subarctic North Pacific
JOURNAL OF OCEANOGRAPHY, Dec. 2016
72, 6, 819, 836
[Reviewed] - Masahide Wakita; Makio C. Honda; Kazuhiko Matsumoto; Tetsuichi Fujiki; Hajime Kawakami; Sayaka Yasunaka; Yoshikazu Sasai; Chiho Sukigara; Mario Uchimiya; Minoru Kitamura; Toru Kobari; Yoshihisa Mino; Akira Nagano; Shuichi Watanabe; Toshiro Saino
Biological organic carbon export estimated from the annual carbon budget observed in the surface waters of the western subarctic and subtropical North Pacific Ocean from 2004 to 2013
JOURNAL OF OCEANOGRAPHY, Oct. 2016
72, 5, 665, 685
[Reviewed] - S. Lan Smith; Markus Pahlow; Agostino Merico; Esteban Acevedo-Trejos; Yoshikazu Sasai; Chisato Yoshikawa; Kosei Sasaoka; Tetsuichi Fujiki; Kazuhiko Matsumoto; Makio C. Honda
Contribution to the Themed Section: Advances in Plankton Modelling and Biodiversity Evaluation Flexible phytoplankton functional type (FlexPFT) model: size-scaling of traits and optimal growth
JOURNAL OF PLANKTON RESEARCH, Jul. 2016
38, 4, 977, 992
[Reviewed] - Eko Siswanto; Makio C. Honda; Kazuhiko Matsumoto; Yoshikazu Sasai; Tetsuichi Fujiki; Kosei Sasaoka; Toshiro Saino
Sixteen-year phytoplankton biomass trends in the northwestern Pacific Ocean observed by the SeaWiFS and MODIS ocean color sensors
JOURNAL OF OCEANOGRAPHY, Jun. 2016
72, 3, 479, 489
[Reviewed] - Makio C. Honda; Hajime Kawakami; Kazuhiko Matsumoto; Masahide Wakita; Tetsuichi Fujiki; Yoshihisa Mino; Chiho Sukigara; Toru Kobari; Mario Uchimiya; Ryo Kaneko; Toshiro Saino
Comparison of sinking particles in the upper 200 m between subarctic station K2 and subtropical station S1 based on drifting sediment trap experiments
JOURNAL OF OCEANOGRAPHY, Jun. 2016
72, 3, 373, 386
[Reviewed] - Kazuhiko Matsumoto; Osamu Abe; Tetsuichi Fujiki; Chiho Sukigara; Yoshihisa Mino
Primary productivity at the time-series stations in the northwestern Pacific Ocean: is the subtropical station unproductive?
JOURNAL OF OCEANOGRAPHY, Jun. 2016
72, 3, 359, 371
[Reviewed] - Tetsuichi Fujiki; Kosei Sasaoka; Kazuhiko Matsumoto; Masahide Wakita; Yoshihisa Mino
Seasonal variability of phytoplankton community structure in the subtropical western North Pacific
JOURNAL OF OCEANOGRAPHY, Jun. 2016
72, 3, 343, 358
[Reviewed] - Ryuichiro Inoue; Makio C. Honda; Tetsuichi Fujiki; Kazuhiko Matsumoto; Shinya Kouketsu; Toshio Suga; Toshiro Saino
Western North Pacific Integrated Physical-Biogeochemical Ocean Observation Experiment (INBOX): Part 2. Biogeochemical responses to eddies and typhoons revealed from the S1 mooring and shipboard measurements
JOURNAL OF MARINE RESEARCH, Mar. 2016
74, 2, 71, 99
[Reviewed] - Ryuichiro Inoue; Minoru Kitamura; Tetsuichi Fujiki
Diel vertical migration of zooplankton at the S1 biogeochemical mooring revealed from acoustic backscattering strength
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Feb. 2016
121, 2, 1031, 1050
[Reviewed] - Haruka Takagi; Katsunori Kimoto; Tetsuichi Fujiki; Atsushi Kurasawa; Kazuyoshi Moriya; Hiromichi Hirano
Ontogenetic dynamics of photosymbiosis in cultured planktic foraminifers revealed by fast repetition rate fluorometry
MARINE MICROPALEONTOLOGY, Jan. 2016
122, 44, 52
[Reviewed] - Hajime Kawakami; Makio C. Honda; Kazuhiko Matsumoto; Masahide Wakita; Minoru Kitamura; Tetsuichi Fujiki; Shuichi Watanabe
POC fluxes estimated from Th-234 in late spring-early summer in the western subarctic North Pacific
JOURNAL OF OCEANOGRAPHY, Jun. 2015
71, 3, 311, 324
[Reviewed] - Eko Siswanto; Kazuhiko Matsumoto; Makio C. Honda; Tetsuichi Fujiki; Kosei Sasaoka; Toshiro Saino
Reappraisal of meridional differences of factors controlling phytoplankton biomass and initial increase preceding seasonal bloom in the northwestern Pacific Ocean
REMOTE SENSING OF ENVIRONMENT, Mar. 2015
159, 44, 56
[Reviewed] - Takagi, H; Kimoto, K; Fujiki, T; Kurasawa, A; Moriya, K; Hirano, H
Exploring photosymbiotic ecology of planktic foraminifers from chamber-by-chamber isotopic history of individual foraminifers
Paleobiology, 2015
41, 1, 108, 121
[Reviewed] - Tetsuichi Fujiki; Haruka Takagi; Katsunori Kimoto; Atsushi Kurasawa; Tomoko Yuasa; Yoshihisa Mino
Assessment of algal photosynthesis in planktic foraminifers by fast repetition rate fluorometry
JOURNAL OF PLANKTON RESEARCH, Nov. 2014
36, 6, 1403, 1407
[Reviewed] - Tetsuichi Fujiki; Kazuhiko Matsumoto; Yoshihisa Mino; Kosei Sasaoka; Masahide Wakita; Hajime Kawakami; Makio C. Honda; Shuichi Watanabe; Toshiro Saino
Seasonal cycle of phytoplankton community structure and photophysiological state in the western subarctic gyre of the North Pacific
LIMNOLOGY AND OCEANOGRAPHY, May 2014
59, 3, 887, 900
[Reviewed] - Yoshihisa Mino; Satsuki Matsumura; Thaithaworn Lirdwitayaprasit; Tetsuichi Fujiki; Tetsuo Yanagi; Toshiro Saino
Variations in phytoplankton photo-physiology and productivity in a dynamic eutrophic ecosystem: a fast repetition rate fluorometer-based study
JOURNAL OF PLANKTON RESEARCH, Mar. 2014
36, 2, 398, 411
[Reviewed] - Tetsuichi Fujiki; Kazuhiko Matsumoto; Toshiro Saino; Masahide Wakita; Shuichi Watanabe
Distribution and photo-physiological condition of phytoplankton in the tropical and subtropical North Pacific
JOURNAL OF OCEANOGRAPHY, Feb. 2013
69, 1, 35, 43
[Reviewed] - M. Wakita; S. Watanabe; M. Honda; A. Nagano; K. Kimoto; K. Matsumoto; M. Kitamura; K. Sasaki; H. Kawakami; T. Fujiki; K. Sasaoka; Y. Nakano; A. Murata
Ocean acidification from 1997 to 2011 in the subarctic western North Pacific Ocean
BIOGEOSCIENCES, 2013
10, 12, 7817, 7827
[Reviewed] - Kazuhiko MATSUMOTO; Tetsuichi FUJIKI; Makio C. HONDA; Masahide WAKITA; Hajime KAWAKAMI; Minoru KITAMURA; Toshiro SAINO
Inhibition of primary production by nitrile rubber O-rings in Niskin sampler
JAMSTEC Report of Research and Development, 2012
14, 17, 25
[Reviewed] - Tetsuichi Fujiki; Kazuhiko Matsumoto; Shuichi Watanabe; Takuji Hosaka; Toshiro Saino
Phytoplankton productivity in the western subarctic gyre of the North Pacific in early summer 2006
JOURNAL OF OCEANOGRAPHY, Jun. 2011
67, 3, 295, 303
[Reviewed] - Nakano Yoshiyuki; Hosoe Yuzo; Fujiki Tetsuichi; Yoshikawa Yasushi; Watanabe Shuichi
Development of low power consumption LED light source for visible light spectrophotometry
JAMSTEC Rep. Res. Dev., 2011
12, 53, 60
[Reviewed] - Rie OHASHI; Ken-Ichiro ISHII; Tetsuichi FUJIKI; Minoru KITAMURA; Kazuhiko MATSUMOTO; Makio C. HONDA; Atsushi YAMAGUCHI
Short-term changes in the planktonic community of the western subarctic Pacific during early summer: analysis of sediment trap samples
Bull. Plankton Soc. Japan, 2011
58, 2, 123, 135
[Reviewed] - S. C. Tripathy; J. Ishizaka; T. Fujiki; T. Shibata; K. Okamura; T. Hosaka; T. Saino
Assessment of carbon- and fluorescence-based primary productivity in Ariake Bay, southwestern Japan
ESTUARINE COASTAL AND SHELF SCIENCE, Mar. 2010
87, 1, 163, 173
[Reviewed] - Hajime Kawakami; Makio C. Honda; Kazuhiko Matsumoto; Tetsuichi Fujiki; Shuichi Watanabe
East-West Distribution of POC Fluxes Estimated from Th-234 in the Northern North Pacific in Autumn
JOURNAL OF OCEANOGRAPHY, Feb. 2010
66, 1, 71, 83
[Reviewed] - Hajime KAWAKAMI; Makio C. HONDA; Kazuhiko MATSUMOTO; Tetsuichi FUJIKI; Shuichi WATANABE
East-west distribution of nutrients and dissolved inorganic carbon in the northern North Pacific in autumn
The Open Oceanography Journal, 2010
4, 1, 99, 106
[Reviewed] - Tetsuichi Fujiki; Kazuhiko Matsumoto; Makio C. Honda; Hajime Kawakami; Shuichi Watanabe
Phytoplankton composition in the subarctic North Pacific during autumn 2005
JOURNAL OF PLANKTON RESEARCH, Feb. 2009
31, 2, 179, 191
[Reviewed] - Fujiki Tetsuichi; Nakano Yoshiyuki; Watanabe Shuichi
Prevention of marine biofouling for ocean instruments::A study of effectiveness of silicon-based antifouling paint
JAMSTEC Report of Research and Development, 2009
9, 3, 1, 8
[Reviewed] - Tetsuichi Fujiki; Takuji Hosaka; Hideshi Kimoto; Takashi Ishimaru; Toshiro Saino
In situ observation of phytoplankton productivity by an underwater profiling buoy system: use of fast repetition rate fluorometry
MARINE ECOLOGY PROGRESS SERIES, 2008
353, 81, 88
[Reviewed] - Tetsuichi Fujiki; Takahiko Suzue; Hideshi Kimoto; Toshiro Saino
Photosynthetic electron transport in Dunaliella tertiolecta (Chlorophyceae) measured by fast repetition rate fluorometry: relation to carbon assimilation
JOURNAL OF PLANKTON RESEARCH, Feb. 2007
29, 2, 199, 208
[Reviewed] - Tetsuichi FUJIKI; Toshiro SAINO
Estimation of phytoplankton productivity using chlorophyll fluorescence
Coastal Oceanography Research, 2007
45, 1, 5, 10
[Reviewed] - H Miyaguchi; T Fujiki; T Kikuchi; VS Kuwahara; T Toda
Relationship between the bloom of Noctiluca scintillans and environmental factors in the coastal waters of Sagami Bay, Japan
JOURNAL OF PLANKTON RESEARCH, Mar. 2006
28, 3, 313, 324
[Reviewed] - T Fujiki; T Toda; T Kikuchi; H Aono; S Taguchi
Phosphorus limitation of primary productivity during the spring-summer blooms in Sagami Bay, Japan
MARINE ECOLOGY PROGRESS SERIES, 2004
283, 29, 38
[Reviewed] - T Fujiki; T Toda; T Kikuchi; S Taguchi
Photoprotective response of xanthophyll pigments during phytoplankton blooms in Sagami Bay, Japan
JOURNAL OF PLANKTON RESEARCH, Mar. 2003
25, 3, 317, 322
[Reviewed] - T. Fujiki
Variability in chlorophyll a specific absorption coefficient in marine phytoplankton as a function of cell size and irradiance
Journal of Plankton Research, 01 Sep. 2002
24, 9, 859, 874 - T Fujiki; S Taguchi
Variability in chlorophyll alpha specific absorption coefficient in marine phytoplankton as a function of cell size and irradiance
JOURNAL OF PLANKTON RESEARCH, Sep. 2002
24, 9, 859, 874
[Reviewed] - Hirawake Toru; Suzuki Koji; Kishino Motoaki; Furuya Ken; Taguchi Satoru; Saitoh Sei-ich; Saino Toshiro; Matsumoto Kazuhiko; Harimoto Takashi; Sasaki Hiroaki; Fujiki Tetsuichi; Kobara Shinichi; Kashiwa Toshiyuki
A Protocol for Measuring the Absorption Coefficient of Phytoplankton using QFT (Quantitative Filter Technique) and a Submersible Spectrophotometer.
Oceanography in Japan, 2001
10, 6, 471, 484
[Reviewed] - Tetsuichi FUJIKI; Satoru TAGUCHI
Relationship between light absorption and the xanthophyll-cycle pigments in marine diatoms
Plankton Biology and Ecology, 2001
48, 2, 96, 103
[Reviewed]
Misc.
- 藤木徹一; 藤木徹一; 星原(山本)綾; 平野瑞恵; 佐藤佳奈子; 佐藤佳奈子; 相田(野口)真希; 相田(野口)真希; 細田滋毅; 細田滋毅
BGCアルゴフロートがとらえる海の変化とプランクトンの応答
日本海洋学会大会講演要旨集(Web), 2025
2025 - 藤木徹一; 相田(野口)真希; 細田滋毅; 佐藤佳奈子; 平野瑞恵; 星原(山本)綾
海洋環境変化と低次栄養段階生物への影響評価:生物地球化学(BGC)アルゴフロートの利活用とその拡張
海と地球のシンポジウム発表課題一覧・要旨集(CD-ROM), 2025
2024 - 脇田昌英; 永野憲; 内田裕; 中野善之; 木元克典; 重光雅仁; 長島佳菜; 竹谷文一; 藤木徹一; 野口真希; 笹岡晃征; 小埜恒夫
西部亜寒帯循環域K2測点における海洋酸性化と生物生産の変化
日本海洋学会大会講演要旨集(Web), 2024
2024 - 野口真希; 長島佳菜; 竹谷文一; 木元克典; 藤木徹一; 杉江恒二; 金谷有剛
Evaluation of Asian aerosols and their impact on marine biogeochemistry in the western North Pacific
日本地球惑星科学連合大会予稿集(Web), 2024
2024 - 原田尚美; 原田尚美; 野口真希; 塩崎拓平; 藤木徹一; 木元克典; 川口慎介; 栗栖美菜子; 溝端浩平; 真壁竜介; 平譯享; 杉江恒二; 高塚進; 草原和弥; 山本彬友; 前田歩; 西川はつみ; CHEN Sijun
Response of biogeochemical cycle and lower trophic ecosystem to the environmental change in the Southern Ocean, East Antarctica
日本地球惑星科学連合大会予稿集(Web), 2024
2024 - 長島佳菜; 藤木徹一; 野口真希; 喜多村稔; 杉江恒二; 木元克典; 内田裕; 脇田昌英; 金子仁; 中野善之; 佐藤都; 久保さゆり; 竹谷文一; 金谷有剛; 三野義尚; 下島公紀; 大井麻由; 鈴木渚; 岡崎裕典; 粕谷拓人; 熊威誠; 佐川拓也; 内田貴之; 覃洪偉; 塩崎拓平; 青木一真; 遠嶋康徳; 石戸谷重之; 天野敦子; 村上雅則; 鷺島克啓
「みらい」MR23-05航海Leg2:西部北太平亜寒帯域における大気・海洋・生態系変動の学際的研究
海と地球のシンポジウム発表課題一覧・要旨集(CD-ROM), 2024
2023 - 岸正敏; 杉江恒二; 松本和彦; 野口真希; 藤木徹一
Phytoplanktonic response towards ammonia in subtropical to subarctic western North Pacific
日本水環境学会年会講演集, 2023
57th - 高木悠花; 木元克典; 藤木徹一
Carbon dynamics in photosymbiotic system of planktonic foraminifera
日本地球化学会年会要旨集(Web), 2023
70th - 杉江恒二; 藤木徹一; 木元克典; 松本和彦; 竹谷文一; 脇田昌英; 中野善之; 岸正敏; 喜多村稔; 金谷有剛; 佐々木雄亮; 塩崎拓平; QIN Hongwei; 下島公紀; 大井麻由; 刀祢館奈々子; 山口三亜佳; 三野義尚
「みらい」MR22-03航海概要報告-春季西部北太平洋における東アジア大陸起源物質の分布と生態系への影響-
海と地球のシンポジウム発表課題一覧・要旨集(CD-ROM), 2023
2022 - 藤木徹一
西部北太平洋亜寒帯域の海洋酸性化研究
学術研究船「白鳳丸」30年のあゆみ, 2019
10 - Tetsuichi FUJIKI; Katsunori KIMOTO; Haruka TAKAGI; Tomoko YUASA
Photosymbiotic relationship between planktonic protozoan and algae
Kaiyo monthly, 2016
48, 3, 50, 56 - 渡邉修一; 中野善之; 藤木徹一
二酸化炭素センサーの開発
Blue Earth Special Issue 2010, 2010
16, 17 - Yoshiyuki NAKANO; Tetsuichi FUJIKI; Shuichi WATANABE
Observation of seawater carbonate species by in situ sensor
Kaiyo monthly, 2010
42, 12, 684, 688 - Yoshiyuki NAKANO; Tetsuichi FUJIKI; Shuichi WATANABE
Development of drifting buoy system with in situ sea surface pCO2 sensor
Bulletin of Japan Deep Sea Technology Association, 2007
55, 9, 13 - Shuichi WATANABE; Yoshiyuki NAKANO; Tetsuichi FUJIKI
Chemical measuring system on Argo
Kaiyo monthly, 2007
39, 7, 479, 483 - Hideshi KIMOTO; Tetsuichi FUJIKI; Toshiro SAINO
Development of fast repetition rate fluorometer for measurement of oceanic primary production
Bulletin of Japan Deep Sea Technology Association, 2006
48, 14, 19 - Tetsuichi FUJIKI; Hideshi KIMOTO; Takuji HOSAKA; Takashi ISHIMARU; Toshiro SAINO
In situ measurement of primary productivity using fast repetition rate fluorometry
Kaiyo monthly, 2006
38, 12, 877, 882 - Tetsuichi FUJIKI; Satoru TAGUCHI
Influence of photosynthetic efficiency on photoprotection by the xanthophyll cycle in marine diatom
Ocean Optics, 2000
15, 1080 - Tatsuki TODA; Tomohiko KIKUCHI; Koji HAMASAKI; Kazutaka TAKAHASHI; Tetsuichi FUJIKI; Victor KUWAHARA; Teruaki YOSHIDA; Satoru TAGUCHI
Seasonal and annual variations of environmental factors at Manazuru Port, Sagami Bay, Japan from 1995 to 1999
Actinia, 2000
13, 31, 41 - Hideo MIYAGUCHI; Tetsuichi FUJIKI; Tomohiko KIKUCHI; Satoru TAGUCHI; Tatsuki TODA
Annual variations in abundance of Noctiluca scintillans in the coastal area of Sagami Bay, Japan
Proceedings of The 11th JSPS Joint Seminar on Marine Science, 2000
180, 189 - Tetsuichi FUJIKI; Satoru TAGUCHI
Chlorophyll a specific absorption coefficient and photosynthetic characteristics of phytoplankton under physiologically similar condition
Ocean Optics, 1998
14, 1226 - Tetsuichi FUJIKI; Koji HAMASAKI; Satoru TAGUCHI
Diel variability in chlorophyll a specific absorption coefficient of green alga Dunaliella salina
The 12th International Symposium on Okhotsk Sea & Sea Ice, 1997
112, 115
