Okazaki Yuji 岡崎雄二

… Alternative Names

OKAZAKI Yuji 岡崎雄二

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Researcher Number	90392901
Other IDs
Affiliation (Current)	2025: 国立研究開発法人水産研究・教育機構, 水産資源研究所(塩釜), 主任研究員
Affiliation (based on the past Project Information) *help	2020 – 2023: 国立研究開発法人水産研究・教育機構, 水産資源研究所(塩釜), 主任研究員 2020: 国立研究開発法人水産研究・教育機構, 水研機構(塩釜), 主任研究員 2015 – 2019: 国立研究開発法人水産研究・教育機構, 東北区水産研究所, 主任研究員 2015: 国立研究開発法人・水産研究・教育機構東北区水産研究所, 資源環境部, 主任研究員 2014: 独立行政法人水産総合研究センター, その他部局等, 主任研究員 … More 2013 – 2014: 独立行政法人水産総合研究センター, 東北区水産研究所, 主任研究員 2011 – 2013: 独立行政法人水産総合研究センター, 東北区水産研究所資源海洋部, 主任研究員 2012: 独立行政法人水産総合研究センター, その他部局等, 研究員 2010: 独立行政法人水産総合研究センター, 東北区水産研究所, 主任研究員 2009: 独立行政法人水産総合研究センター, 東北区水産研究所混合域海洋環境部, 主任研究員 Less
Review Section/Research Field	Principal Investigator Aquatic bioproduction science / General fisheries Except Principal Investigator Environmental dynamic analysis / Basic Section 40030:Aquatic bioproduction science-related / Aquatic bioproduction science / Environmental dynamic analysis
Keywords	Principal Investigator 食性 / 仔稚魚 / 動物プランクトン / 成長 / 窒素・炭素安定同位体比 / 国際情報交換 / 餌料環境 / イワシ類仔稚魚 / 安定同位体比 / 窒素安定同位体比 / カタクチイワシ / マイワシ … More Except Principal Investigator … More 環境変動 / 海洋生態 / プランクトン / 浮魚類餌料環境 / カイアシ類 / 気候変動 / 海洋科学 / 生物生産 / 地球化学 / 水産学 / 物質循環 / 食物網 / 海洋生態系 / 魚類生産 / 繊毛虫 / 栄養塩 / 無殻繊毛虫 / 浮魚 / ブルーム / 珪藻ブルーム / 渦鞭毛藻 / 親潮 / 混合栄養性プランクトン / 混合栄養 / 動物プランクトン / 春季ブルーム / 親潮域 / 亜寒帯太平洋 / 混合栄養性 / 食物連鎖 / 水産資源 / 水産資源変動 / 海洋資源 / 生態学 / 浮魚餌料環境 / 浮遊性被嚢類 / サブメソスケール / 摂餌生態 / 微細分布 / 海洋食物網 / 沈降粒子 / ゼラチナス動物プランクトン / 海洋環境変動 / 浮魚餌環境 / 環境影響評価 / 中層性カイアシ類 / 浮遊性有孔虫 / 海洋中層 / 有孔虫 / 炭酸系 / 中層生態系 / 海洋酸性化 / 地球生物化学 / 環境動態 / 地球科学 / 餌料環境 / 生活史 Less

Do Oyashio diatom blooms support small pelagic fish Production? : food chain connected by mixotrophic species
- Principal Investigator
  
  Takahashi Kazutaka
- Project Period (FY)
  2020 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 40030:Aquatic bioproduction science-related
- Research Institution
  The University of Tokyo
Evaluation approach for growth based on trophic information of larval and juvenile fishPrincipal Investigator
- Principal Investigator
  
  Okazaki Yuji
- Project Period (FY)
  2017 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Aquatic bioproduction science
- Research Institution
  Fisheries Research and Education Agency
Evaluation of ocean acidification and its biological affection in North Pacific subsurface waters
- Principal Investigator
  
  ONO TSUNEO
- Project Period (FY)
  2016 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  Fisheries Research and Education Agency
Succession of mesozooplankton community in the Oyashio-Kuroshio Mixed Water Region based on high-resolution observation
- Principal Investigator
  
  Takahashi Kazutaka
- Project Period (FY)
  2016 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Aquatic bioproduction science
- Research Institution
  The University of Tokyo
Re-evaluation of natural mortality of zooplankton; importance of non-consumptive mortality
- Principal Investigator
  
  TAKAHASHI Kazutaka
- Project Period (FY)
  2012 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  The University of Tokyo
Long-term variation of trophodynamics in larvae and juveniles of sardine and anchovy using archive samplesPrincipal Investigator
- Principal Investigator
  
  OKAZAKI Yuji
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  General fisheries
- Research Institution
  Fisheries Research Agency
動物プランクトンの非捕食死:現場個体群における重要性と生態系に与える影響の解明
- Principal Investigator
  
  TAKAHASHI Kazutaka
- Project Period (FY)
  2009 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  The University of Tokyo
  Fisheries Research Agency

All 2024 2023 2020 2019 2018 2017 2016 2015 2013 2012 2010 Other

All Journal Article Presentation

[Journal Article] Importance of microzooplankton for sustaining high mesozooplankton biomass during post-bloom period in the Oyashio region of the western subarctic Pacific2024
- Author(s)
  Ichinomiya Mutsuo、Nishibe Yuichiro、Okazaki Yuji、Sato Mitsuhide、Takahashi Kazutaka
- Journal Title
  
  Progress in Oceanography
  
  Volume: 224 Pages: 103250-103250
- DOI
  10.1016/j.pocean.2024.103250
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23K11393, KAKENHI-PROJECT-20H03059
[Journal Article] Higher ingestion rates and importance of ciliates in the diet of a large, subarctic copepod revealed by larger volume incubations2023
- Author(s)
  Takahashi Kazutaka、Ichinomiya Mutsuo、Okazaki Yuji、Nishibe Yuichiro
- Journal Title
  
  Limnology and Oceanography
  
  Volume: 68 Issue: 4 Pages: 790-802
- DOI
  10.1002/lno.12310
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K05779, KAKENHI-PROJECT-20H03059
[Journal Article] Euphausia pacifica (Euphausiacea) in the Oyashio region, western North Pacific.2020
- Author(s)
  Okazaki, Y., K. Takahashi, Y. Nishibe, & M. Ichinomiya
- Journal Title
  
  Progress in Oceanography
  
  Volume: 181 Pages: 102245-102245
- DOI
  10.1016/j.pocean.2019.102245
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H04959, KAKENHI-PROJECT-20H03059
[Journal Article] Distribution, biomass and species composition of salps and doliolids in the Oyashio-Kuroshio Transitional Region: Potential impact of massive bloom on the pelagic food web2020
- Author(s)
  Ahmad Ishak, N. H., K. Tadokoro, Y. Okazaki, S. Kakehi, S. Suyama & K. Takahashi
- Journal Title
  
  Journal of Oceanography
  
  Volume: 印刷中 Issue: 5 Pages: 351-363
- DOI
  10.1007/s10872-020-00549-3
- NAID
  40022348692
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H04959, KAKENHI-PROJECT-20H03059
[Journal Article] Dietary overlap and optimal prey environments of larval and juvenile sardine and anchovy in the mixed water region of the western North Pacific2019
- Author(s)
  Okazaki Y、Tadokoro K、Kubota H、Kamimura Y、Hidaka K
- Journal Title
  
  Marine Ecology Progress Series
  
  Volume: 630 Pages: 149-160
- DOI
  10.3354/meps13124
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K07927, KAKENHI-PLANNED-15H05822
[Journal Article] 混合水域中層における炭酸カルシウム飽和度の経年変動2018
- Author(s)
  小埜　恒夫、岡崎　雄二、木元　克典
- Journal Title
  
  月刊海洋
  
  Volume: 570
- Data Source
  KAKENHI-PROJECT-16H02949
[Journal Article] 混合水域中層における炭酸カルシウム飽和度の経年変動2018
- Author(s)
  小埜恒夫、岡崎雄二、木元克典
- Journal Title
  
  月刊海洋
  
  Volume: 571 Pages: 247-253
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H02949
[Journal Article] In situ observations of a doliolid bloom in a warm water filament using a video plankton recorder: bloom development, fate, and effect on biogeochemical cycles and planktonic food webs2015
- Author(s)
  Takahashi, K., T. Ichikawa, C. Fukugama,, M. Yamane, S. Kakehi, T. Okazaki, H. Kubota, & K. Furuya
- Journal Title
  
  Limnology and Oceanography
  
  Volume: 60 Issue: 5 Pages: 1670-1780
- DOI
  10.1002/lno.10133
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-24310007, KAKENHI-PLANNED-24121005
[Journal Article] Application of an automatic approach to calibrate the NEMURO nutrient-phytoplankton zooplankton food web model in the Oyashio region2010
- Author(s)
  Ito, S.I., N.Yoshie, T.Okunishi, T.Ono, Y.Okazaki, A.Kuwata, T.Hashioka, K.A.Rose, B.A.Megrey, M.J.Kishi, M.Nakamachi, Y.Shimizu, S.Kakehi, H.Saito, K.Takahashi, K.Tadokoro, A.Kusaka, H.Kasai
- Journal Title
  
  Progress in Oceanography
  
  Volume: 87 Pages: 186-200
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21310019
[Presentation] 黒潮周辺海域におけるマサバ仔魚餌料生物とその空間分布2020
- Author(s)
  日髙清隆、上村泰洋、岡崎雄二
- Organizer
  2020年度水産海洋学会研究発表大会
- Data Source
  KAKENHI-PROJECT-17K07927
[Presentation] Distribution, biomass, and species composition of salps and doliolids in the Oyashio-Kuroshio Transitional Region: Potential impact of massive bloom on the pelagic food web2020
- Author(s)
  Ahmad Ishak, N. H., K. Tadokoro, Y. Okazaki, S. Kakehi, S. Suyama & K. Takahashi
- Organizer
  海洋生物シンポジウム2020
- Data Source
  KAKENHI-PROJECT-16H04959
[Presentation] 親潮域ポストブルーム期における大型カイアシ類の鉛直微細分布2019
- Author(s)
  大南あかり・高野永実子・Chen Sijun・岡崎雄二・筧　茂穂・高橋一生
- Organizer
  2019年度日本海洋学会秋季大会
- Data Source
  KAKENHI-PROJECT-16H04959
[Presentation] The feeding habits and trophodynamics of larval and juvenile fishes in the Kuroshio off Japan2019
- Author(s)
  Okazaki, Y., Miyamoto, H., Suzuki, K., Saito, H., Hidaka, K., and Ichikawa, T.
- Organizer
  43th Larval Fish Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K07927
[Presentation] Temporal variation of the saturation state of carbonate in intermediate waters of western North Pacific2018
- Author(s)
  T. Ono K. Kimoto Y. Okazaki
- Organizer
  PICES 2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02949
[Presentation] Feeding habits of multiple larval and juvenile fish taxa collected in the Kuroshio off Japan2018
- Author(s)
  Yuji Okazaki, Hiroomi Miyamoto, Koji Suzuki, Hiroaki Saito, Kiyotaka Hidaka and Tadafumi Ichikawa
- Organizer
  2018 PICES Annual meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K07927
[Presentation] 秋季の黒潮周辺海域における仔稚魚を支える食物網構造2018
- Author(s)
  岡崎雄二,宮本洋臣,福田秀樹,齊藤宏明
- Organizer
  2018年度水産海洋学会
- Data Source
  KAKENHI-PROJECT-17K07927
[Presentation] Trophodynamics of fish larvae and juveniles in the Kuroshio region2018
- Author(s)
  Yuji Okazaki, Hiroomi Miyamoto, Kiyotaka Hidaka and Hideaki Fukuda
- Organizer
  2018 Ocean Science Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K07927
[Presentation] Temporal variation of the saturation state of carbonate in intermediate waters of western North Pacific2018
- Author(s)
  Tsuneo Ono, Katsunori Kimoto, and Yuji Okazaki
- Organizer
  4th International Symposium on the Effects of Climate Change on the World Oceans
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02949
[Presentation] Morphology and habitat depth of planktic foraminifer in intermediate waters of western North Pacific: Implications of relationship to carbonate saturation states2018
- Author(s)
  Katsunori Kimoto, Tsuneo Ono, and Yuji Okazaki
- Organizer
  4th International Symposium on the Effects of Climate Change on the World Oceans
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02949
[Presentation] 混合水域における近年のマイワシ稚魚の食性2017
- Author(s)
  岡崎雄二、田所和明、上村泰洋、日高清隆
- Organizer
  水産海洋学会
- Data Source
  KAKENHI-PROJECT-17K07927
[Presentation] 混合水域中層における炭酸カルシウム飽和度の経年変動2017
- Author(s)
  小埜　恒夫、岡崎　雄二、木元　克典
- Organizer
  2017年度日本海洋学会秋期大会
- Data Source
  KAKENHI-PROJECT-16H02949
[Presentation] 混合水域における近年のマイワシ稚魚の食性2017
- Author(s)
  岡崎雄二・田所和明・上村泰洋・日高清隆
- Organizer
  水産海洋学会
- Data Source
  KAKENHI-PROJECT-16H04959
[Presentation] In situ observations of a doliolid bloom in a warm water filament using a video plankton recorder: bloom development, fate, and effect on biogeochemical cycles and planktonic food webs2016
- Author(s)
  Kazutaka Takahashi, Tadafumi Ichikawa, Chika Fukugama, Misaki Yamane, Shigeho Kakehi, Yuji Okazaki, Hiroshi Kubota, Ken Furuya
- Organizer
  ICES/PICES 6th zooplankton production symposium
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H04959
[Presentation] ポストブルーム期におけるツノナシオキアミの摂餌生態2016
- Author(s)
  岡崎雄二・一宮睦雄・西部裕一郎・高橋一生
- Organizer
  日本海洋学会2016年秋季大会
- Data Source
  KAKENHI-PROJECT-16H04959
[Presentation] 親潮域ポストブルーム期における主要カイアシ類の摂餌生態2016
- Author(s)
  西部裕一郎・一宮睦夫・岡崎雄二・高橋一生
- Organizer
  日本海洋学会2016年秋季大会
- Data Source
  KAKENHI-PROJECT-16H04959
[Presentation] 亜寒帯性大型カイアシ類 Neocalanus cristatusの摂餌能力2016
- Author(s)
  高橋一生・西部裕一郎・一宮睦雄・岡崎雄二・佐藤光秀
- Organizer
  日本海洋学会2016年秋季大会
- Data Source
  KAKENHI-PROJECT-16H04959
[Presentation] 親潮域ポストブルーム期における微小動物プランクトンの生態学的役割2016
- Author(s)
  一宮睦雄・西部裕一郎・岡崎雄二・佐藤光秀・高橋一生
- Organizer
  日本海洋学会2016年秋季大会
- Data Source
  KAKENHI-PROJECT-16H04959
[Presentation] ビデオプランクトンレコーダーを用いたウミタル類高密度群の高解像度観察2013
- Author(s)
  高橋一生, 市川忠史, 福釜知佳, 山根美咲, 筧茂徳, 岡崎雄二, 久保田洋, 古谷研
- Organizer
  2013年度日本海洋学会春季大会
- Place of Presentation
  東京海洋大学(東京都)
- Year and Date
  2013-03-22
- Data Source
  KAKENHI-PROJECT-24310007
[Presentation] High resolution vertical and Horizontal Profiles of doliolid bloom determined by the visual plankton recorder in the western North Pacific2013
- Author(s)
  Takahashi, K., T. Ichikawa, C. Fukugama, S. Kakehi, Y. Okazaki, M. Yamane, K. Furuya
- Organizer
  ASLO Aquatic Science Meeting 2013
- Place of Presentation
  New Orleans, USA
- Year and Date
  2013-02-20
- Data Source
  KAKENHI-PROJECT-24310007
[Presentation] 仔魚の窒素・炭素安定同位体比に及ぼす保存液の影響2013
- Author(s)
  岡崎雄二・市川忠史・田所和明
- Organizer
  2013年度水産海洋学会研究発表大会
- Place of Presentation
  京都市
- Data Source
  KAKENHI-PROJECT-24658179
[Presentation] Comparison of feeding ecology between two co-occurring clupeoid species2013
- Author(s)
  Okazaki Y., Kubota H., Takasuka A. and Sakaji H
- Organizer
  37th Larval Fish Conference
- Place of Presentation
  米国・マイアミ
- Data Source
  KAKENHI-PROJECT-24658179
[Presentation] Feeding and prey selection of larvae and juveniles of two clupeoid species in Tosa Bay, Japan2012
- Author(s)
  Okazaki Y., Kubota H, Takasuka A. and Sakaji H
- Organizer
  36th Larval fish conference
- Place of Presentation
  Bergen
- Data Source
  KAKENHI-PROJECT-24658179
[Presentation] 黒潮内側域における仔魚群集と海洋環境
- Author(s)
  岡崎雄二、黒田　寛、広田祐一
- Organizer
  平成26年度日本水産学会秋季大会
- Place of Presentation
  福岡市
- Year and Date
  2014-09-19 – 2014-09-22
- Data Source
  KAKENHI-PROJECT-24658179
[Presentation] Vertical distribution of larval fish in the inshore region of the Kuroshio
- Author(s)
  Okazaki, Y. Kuroda, H. and Hirota, Y.
- Organizer
  38th Larval fish conference
- Place of Presentation
  ケベックシティ
- Year and Date
  2014-08-17 – 2014-08-21
- Data Source
  KAKENHI-PROJECT-24658179

1. TAKAHASHI Kazutaka (00301581)

# of Collaborated Projects: 4 results

# of Collaborated Products: 13 results
2. 筧茂穂 (20371792)

# of Collaborated Projects: 2 results

# of Collaborated Products: 4 results
3. HAMASAKI Koji (80277871)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. HIDAKA Kiyotaka (70371838)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. ONO TSUNEO (40371786)

# of Collaborated Projects: 1 results

# of Collaborated Products: 6 results
6. 木元克典 (40359162)

# of Collaborated Projects: 1 results

# of Collaborated Products: 6 results
7. 一宮睦雄 (30601918)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
8. 増田貴子 (60893831)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. TADOKORO Kazuaki

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
10. ICHIKAWA Tadafumi

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
11. 西部裕一郎

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Okazaki Yuji 岡崎 雄二

OKAZAKI Yuji 岡崎 雄二

Research Projects

Research Products

Co-Researchers

Do Oyashio diatom blooms support small pelagic fish Production? : food chain connected by mixotrophic species

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Evaluation approach for growth based on trophic information of larval and juvenile fishPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Evaluation of ocean acidification and its biological affection in North Pacific subsurface waters

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Succession of mesozooplankton community in the Oyashio-Kuroshio Mixed Water Region based on high-resolution observation

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Re-evaluation of natural mortality of zooplankton; importance of non-consumptive mortality

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Long-term variation of trophodynamics in larvae and juveniles of sardine and anchovy using archive samplesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

動物プランクトンの非捕食死:現場個体群における重要性と生態系に与える影響の解明

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Importance of microzooplankton for sustaining high mesozooplankton biomass during post-bloom period in the Oyashio region of the western subarctic Pacific2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Higher ingestion rates and importance of ciliates in the diet of a large, subarctic copepod revealed by larger volume incubations2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Euphausia pacifica (Euphausiacea) in the Oyashio region, western North Pacific.2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Distribution, biomass and species composition of salps and doliolids in the Oyashio-Kuroshio Transitional Region: Potential impact of massive bloom on the pelagic food web2020

Author(s)

Journal Title

DOI

NAID

Data Source

[Journal Article] Dietary overlap and optimal prey environments of larval and juvenile sardine and anchovy in the mixed water region of the western North Pacific2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 混合水域中層における炭酸カルシウム飽和度の経年変動2018

Author(s)

Journal Title

Data Source

[Journal Article] 混合水域中層における炭酸カルシウム飽和度の経年変動2018

Author(s)

Journal Title

Okazaki Yuji 岡崎雄二

OKAZAKI Yuji 岡崎雄二

[Presentation] 秋季の黒潮周辺海域における仔稚魚を支える食物網構造2018