Development of a bioaccumulation model for a variety of fish species

• Project/Area Number: 26740039
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Modeling and technologies for environmental conservation and remediation
• Research Institution: Prefectural University of Kumamoto
• Principal Investigator: Kobayashi Jun 熊本県立大学, 環境共生学部, 准教授 (00414368)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 食物網蓄積モデル / 生物蓄積 / 代謝 / 速度定数 / 生物濃縮 / ポリ塩化ビフェニル / ポリ臭素化ジフェニルエーテル / 脱臭素 / PCB / PBDE / 同化効率 / PCBs / PBDEs / 肝ミクロソーム

Outline of Final Research Achievements

This study examined the uptake and depuration rate constants of polychlorinated biphenyl (PCB) and polybrominated diphenyl ether (PBDE) to develop a bioaccumulation model for a variety of aquatic organisms. Bioaccumulation and metabolism experiments were performed to determine the detailed rate constants, which are model parameters. A food web bioaccumulation model for an estuary of the Ariake Sea was constructed. The model incorporating the rate constants was used to predict the PCB and PBDE concentrations of six species of aquatic organisms. The estimated results agreed well with the observed PCB and PBDE concentrations in organisms collected in this area. This model will contribute to the advancement of exposure assessment methods for aquatic organisms.

Research Products

• [Presentation] 魚類肝ミクロソームによるデカ臭素化ジフェニルエーテルの代謝速度に関する検討 (2017)
  • Author(s): 中村亮輔、小林淳
  • Organizer: 第26回環境化学討論会
  • Place of Presentation: 静岡県コンベンションアーツセンター
  • Year and Date: 2017-06-07
• [Presentation] 海産底生魚におけるポリ塩化ビフェニルの腸管経由の同化効率 (2016)
  • Author(s): 橋本奈央、西田みなみ、櫻井健郎、内山幸子、小林淳
  • Organizer: 第25回環境化学討論会
  • Place of Presentation: 朱鷺メッセ（新潟市）
  • Year and Date: 2016-06-08
• [Presentation] 海産魚類におけるポリ塩化ビフェニルの体内分配に脂質が及ぼす影響 (2016)
  • Author(s): 西田みなみ、橋本奈央、石原史隆、内山幸子、小林淳
  • Organizer: 第25回環境化学討論会
  • Place of Presentation: 朱鷺メッセ（新潟市）
  • Year and Date: 2016-06-08
• [Presentation] 海産魚類におけるポリ臭素化ジフェニルエーテルの脱臭素化特性 (2016)
  • Author(s): 石原史隆、水川薫子、小林淳
  • Organizer: 第25回環境化学討論会
  • Place of Presentation: 朱鷺メッセ（新潟市）
  • Year and Date: 2016-06-08