Fate and effects of antifouling biocides in coastal ecosystems

• Project/Area Number: 26701008
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Environmental impact assessment
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: Ohji Madoka 東京農工大学, (連合)農学研究科(研究院), 准教授 (40447511)
• Project Period (FY): 2014-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000); Fiscal Year 2017: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2016: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2015: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000); Fiscal Year 2014: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
• Keywords: 有機スズ化合物 / 新規防汚物質 / 生物影響 / 個体群動態 / 沿岸生態系 / 船底防汚塗料 / 海洋保全 / 海洋生物 / 環境動態 / 海洋生態

Outline of Final Research Achievements

The present study has focused on the biological effects and distribution of organotin compounds and alternative biocides used as antifouling paint for ships and boat in coastal ecosystem. It was found that both antifouling biocides affect growth and reproduction on various aquatic organisms. The coastal environment has found to be globally polluted by both antifouling biocides. Therefore, the contamination by antifouling biocides may result in a disturbance in the marine ecosystems.

Academic Significance and Societal Importance of the Research Achievements

沿岸域において船底防汚物質として使用されてきた有機スズ化合物は、国際的に使用が禁止された現在も沿岸域に残留し、沿岸生態系への影響が懸念される。また、有機スズの代替物質の新規防汚物質についても、その海洋環境における挙動や生物影響は解明されていない。本研究では、有機スズおよび新規防汚物質に着目し、これまでに確立した生物影響評価手法を新規防汚物質に応用するとともに、野外調査により両化合物の汚染状況を把握することにより、両化合物による沿岸生態系攪乱機構を網羅的に解明した。

Research Products

• [Journal Article] Differences in susceptibility of marine bacteria to metal pyrithiones, their degradation compounds and organotin antifouling biocides against colony formation (2019)
  • Author(s): Ohji M, Harino H, Langston WJ
  • Journal Title: Journal of Marine Biological Association of the UK Volume: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Accumulation of organotin compounds on mangroves in coastal ecosystems (2019)
  • Author(s): Ohji M, Harino H, Hayashizaki K, Inoue K, Yusoff FM, Nishida S
  • Journal Title: Journal of Marine Biological Association of the UK Volume: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Differences in bioaccumulation and transfer ability between tributyltin and triphenyltin from parental female to offspring in the viviparous surfperch Ditrema temmincki (2017)
  • Author(s): Ohji M, Harino T, Langston WJ
  • Journal Title: Journal of Marine Biological Association of the UK Volume: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Comparison of toxicities of metal pyrithiones including their degradation compounds and organotin antifouling biocides to the Japanese killifish Oryzias latipes (2017)
  • Author(s): Ohji M, Harino H
  • Journal Title: Archives of Environmental Contamination and Toxicology Volume: 73 Pages: 285-293
  • Peer Reviewed
• [Presentation] 東京湾に棲息するアマモZostera marinaを用いた船底防汚物質の環境動態の解明 (2018)
  • Author(s): 金盛功治, 張野宏也, 大地まどか
  • Organizer: 平成30年度環境化学討論会
• [Presentation] 木更津港における船底防汚塗料の分布および海洋微生物に対する影響 (2018)
  • Author(s): 角舎優一, 張野宏也, 大地まどか
  • Organizer: 平成30年度環境化学討論会
• [Presentation] 東京湾のアマモZostera marinaにおける船底防汚物質の蓄積特性 (2018)
  • Author(s): 金盛功治, 張野宏也, 大地まどか
  • Organizer: 日本マリンエンジニアリング学会
• [Presentation] The relationship between total dissolved copper and labile copper concentrations in the Port of Tokyo (2017)
  • Author(s): Yamaguchi Y, Ohji M, Harino H
  • Organizer: The International Symposium on Marine Engineering (ISME)
  • Int'l Joint Research
• [Presentation] 鹿児島県与論島における殺生物剤の環境動態 (2016)
  • Author(s): 小島香菜, 張野宏也, 大地まどか
  • Organizer: 平成28年度環境化学討論会
• [Presentation] カイアシ類におけるトリブチルスズの毒性に及ぼす水温影響 (2016)
  • Author(s): 吉高昂介, 張野宏也, 大地まどか
  • Organizer: 平成28年度環境化学討論会
• [Presentation] Biological effects of organotin compounds on marine organisms (2015)
  • Author(s): Ohji M
  • Organizer: 23th e-symposium, Japan Society on Water Environment
  • Place of Presentation: Kobe College, Nishinomiya, Hyogo
  • Year and Date: 2015-07-11
  • Int'l Joint Research
• [Presentation] Accumulation of organotin compounds in eelgrass Zostera marina collected from coastal waters in Kanagawa Prefecture, Japan (2015)
  • Author(s): Miyamoto M, Harino H, Ohji M
  • Organizer: 23th e-symposium, Japan Society on Water Environment
  • Place of Presentation: Kobe College, Nishinomiya, Hyogo
  • Year and Date: 2015-07-11
  • Int'l Joint Research
• [Presentation] 神奈川県沿岸に棲息するアマモZostera marinaにおける有機スズ化合物の蓄積特性 (2015)
  • Author(s): 宮本瑞紀, 張野宏也, 大地まどか
  • Organizer: 平成27年度環境化学討論会
  • Place of Presentation: 札幌コンベンションセンター、北海道札幌市
  • Year and Date: 2015-06-24
• [Presentation] The measurements of copper concentrations with a potentially toxic fraction in Tokyo Bay (2014)
  • Author(s): Yamaguchi Y, Nishino T, Ohji M, Harino H, Okamura H
  • Organizer: International Symposium on Marine Engineering (ISME)
  • Place of Presentation: Harbin, China
  • Year and Date: 2014-09-15
• [Presentation] マレーシア沿岸の海洋生物における有機スズ化合物の蓄積特性 (2014)
  • Author(s): 柴山航汰、張野宏也、大地まどか
  • Organizer: 平成26年度環境化学討論会
  • Place of Presentation: 京都大学
  • Year and Date: 2014-05-14
• [Presentation] マレーシアのマングローブ域における有機スズ化合物濃度 (2014)
  • Author(s): 張野宏也、大地まどか、林崎健一、森田隆太郎、八束絵美、井上広滋、西田周平
  • Organizer: 平成26年度環境化学討論会
  • Place of Presentation: 京都大学
  • Year and Date: 2014-05-14