title: Studies on the accumulation and transformation of arsenic in freshwater organisms II. Accumulation and transformation of arsenic compounds by Tilapia mossambica.
abstract: Bioaccumulation and biotransformation of arsenic (As) compounds in freshwater Tilapia mossambica was investigated. The direct accumulation of As by T mossambica was proportional to the concentration of arsenicals in water. Small amounts of accumulated As were transformed to methylated As, including trimethylarsenic (TMA) species. Accumulation and transformation of As(III) by T. mossambica via freshwater food chain results in the transformation of As(III) to As(V) with little biomethylation of accumulated As. Approximately 90% of accumulated As was depurated to water.
authors.affiliation: Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Kagoshima University, Japan.
authors.lastname: Suhendrayatna
authors.forename: Akira
authors.initials: A
authors.lastname: Ohki
authors.forename: Tsunenori
authors.initials: T
authors.lastname: Nakajima
authors.forename: Shigeru
authors.initials: S
authors.lastname: Maeda
mesh_terms: D000818:Animals; D001151:Arsenic / Q000378:metabolism* / Q000493:pharmacokinetics* / Q000633:toxicity; D001711:Biotransformation; D020387:Food Chain; D008745:Methylation; D017210:Tilapia / Q000502:physiology*; D014018:Tissue Distribution; D014873:Water Pollutants / Q000378:metabolism* / Q000493:pharmacokinetics* / Q000633:toxicity
chemical_list: D014873:Water Pollutants; D001151:Arsenic