Research Interests 【 display / non-display 】

Research Interests 【 display / non-display 】

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Research Areas 【 display / non-display 】

Research Areas 【 display / non-display 】

Papers 【 display / non-display 】

Papers 【 display / non-display 】

• Development of a ship-based camera monitoring system for floating marine debris

  Ruofei Yang *, Keiichi Uchida , Yoshinori Miyamoto , Hisayuki Arakawa , Ryuichi Hagita , Tetsutaro Aikawa , 2024.03

  Marine Pollution Bulletin

  DOI

• Abundance and potential sources of floating polystyrene foam macro- and microplastics around Japan

  Mao Kuroda, Atsuhiko Isobe, Keiichi Uchida, Tadashi Tokai, Toshihide Kitakado, Miho Yoshitake, Yoshinori Miyamoto, Tohru Mukai, Keiri Imai, Kenichi Shimizu, Mitsuharu Yagi, Takahisa Mituhasi, Akimasa Habano , 2024.03

  Marine Pollution Bulletin

  DOI

• Effect of Water Flow on Bag Net Volume of Large-scale Set Net Monitored by Ultrasonic Telemetry System

  Noro Hideki, Uchida Keiichi, Akiyama Seiji, Miyamoto Yoshinori, Tokai Tadashi, Takamatsu Atsushi, Tanaka Yuuki , 2023.11

  Journal of Fisheries Engineering

  DOI

• Standardization and database development of marine plastic survey in the offshore areas around Japan

  UCHIDA KEIICHI, HAGITA RYUICHI, MUKAI TOHRU, IMAI KEIRI, SHIMIZU KENICHI, YAGI MITSUHARU, YAMANAKA YUICHI, MITUHASI TAKAHISA, ISOBE ATSUHIKO, KURODA MAO , 2023.09

  NIPPON SUISAN GAKKAISHI

  DOI

• Codend Selectivity for Dominant Four Species in Trawl Catch on the Continental Slope of the East China Sea

  東海 正, 塩出 大輔, 服部 朗, Mahjoub Mohamed Salah, 内田 圭一, 野田 明, 林 敏史, 宮崎 唯史 , 2023.06

  Journal of Fisheries Engineering

  DOI

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Books 【 display / non-display 】

Books 【 display / non-display 】

• Proceedings of the 15th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG15), July 2-5, 2019, Kyoto, Japan

  International Symposium on Origin of Matter and Evolution of Galaxies, Kawabata T., Itagaki N., Kanada-En'yo Y., Maeda K., Nishimura N., Ogata K., 嶋 達志, Tamii A., Terada K., Uchida H., Yamaguchi H., Yoshida K. , 2020

  Physical Society of Japan , 0-0

• バイオロギング シリーズ2　動物たちの知られざる世界を探る

  日本バイオロギング研究会 , 2018.12

  京都通信社 , 前後自在に体をくねり、仕掛けた餌を盗み食うアナゴ , 33-37

• 水産と海洋の科学

  全国高等学校水産教育研究会[編]　東京海洋大学/東海大学/海洋研究開発機構[協力] 執筆者16名 , 2014.04

  海文堂 , 第5節　船の役割 , 52-62

• 最新水産ハンドブック（島一雄他編）

  島一雄ほか , 2012.10

  講談社 , 測位装置 , 105-106

• 東京湾の魚類

  河野 博 (監修), 加納 光樹 (編集), 横尾 俊博 (編集) , 2011.10

  平凡社 , 江戸前寿司の定番（マアナゴ）の生態と漁業 , 0-0

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Grant-in-Aid for Scientific Research 【 display / non-display 】

Grant-in-Aid for Scientific Research 【 display / non-display 】

• Spatio-temporal dynamics of deterioration of marine microplastics

  Project Period (FY)： 2022/04  -  2025/03  Investigator(s): 荒川 久幸

  Grant-in-Aid for Scientific Research(B)  Co-Investigator  23K24973 

• Comprehensive studies on the circulation of ocean plastics including very small microplastics

  Project Period (FY)： 2021/07  -  2026/03  Investigator(s): 磯辺 篤彦

  Grant-in-Aid for Scientific Research(S)  Co-Investigator  21H05058 

• Sources and behaviors of broad-spectrum phenolic endocrine distrusting chemicals (EDCs) and historical trends of their pollution

  Project Period (FY)： 2020/04  -  2025/03  Investigator(s): 高田 秀重

  Grant-in-Aid for Scientific Research(A)  Co-Investigator  20H00627 

• Studies on catching performance of newston net for standardization of microplastics sampling method

  Project Period (FY)： 2020/04  -  2023/03  Investigator(s): Tokai Tadashi

  Grant-in-Aid for Scientific Research(B)  Co-Investigator  20H03060 

  This study clarified the sampling characteristics (e.g., mesh selectivity) and fluid characteristics (e.g. filtration efficiency, fluid resistance, and mesh mouth dynamics) of a neuston net with 0.350 mm mesh size, which is internationally standard for collecting microplastics (MPs) drifting on the ocean surface.
  In particular, mesh selectivity (retention probability by MPs size) was estimated, which suggested that fine MPs (especially fibrous) were missing from the mesh. And a correction method for MPs size composition was also presented. Visualization of the flow around a neuston net towed with the net mouth half out to sea surface was conducted to estimate the filtration efficiency by towing speed. The water flowmeter properly attached to the net mouth was demonstrated to effective to estimate a water volume filtered by the net. The hydrodynamic characteristics of a fine mesh plane netting were clarified, providing basic data for hydrodynamic studies on fine mesh nets.

• Global survey of seabirds chemically-impacted by marine plastics throught the analysis of preen gland oil

  Project Period (FY)： 2016/04  -  2020/03  Investigator(s): Takada Hideshige

  Grant-in-Aid for Scientific Research(A)  Co-Investigator  16H01768 

  Feeding experiment was conducted. UV absorbers and brominated flame retardant (BDE209) were industrially compounded into polyethylene pellet and fed to chicks of streaked shearwater. After 16 days from the feeding, significant amounts of the additives were detected in liver, abdominal adipose, and preen gland oil in the chicks of exposure group, while no additives were detected in control group where no plastics were fed. This clearly demonstrated the transfer and accumulation of the benzotriazole UV-absorbers and BDE209. Novel approach to accurately measure ultra-trace weight of preen gland oil by using TLC with FID was developed. Additives were measured in preen gland oil from 44 species of seabirds globally collected. Among 208 seabirds examined, 95 contained any of the additives (BDE209, DBDPE, phthalates, UV absorbers). The results suggest that 20 % - 50 % of world seabirds are chemically impacted by marine plastics.

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Lesson Subject 【 display / non-display 】

Lesson Subject 【 display / non-display 】