Development of a bioaccumulation model for a variety of fish species

2016 Fiscal Year Final Research Report

• 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
• Keywords: 食物網蓄積モデル / 生物蓄積 / 代謝 / 速度定数

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.

Free Research Field

環境解析評価、環境保全対策