title: Accumulation of organotins in wharf roach (Ligia exotica Roux) and its ability to serve as a biomonitoring species for coastal pollution.
abstract: In this study, we measured the accumulation of tributyltin (TBT) in wharf roach (Ligia exotica Roux) and examined the species' ability to be used for TBT biomonitoring in coastal environments. In an exposure test, wharf roach were exposed to TBT via diet for 2d. TBT was accumulated in wharf roach, and its metabolite dibutyltin was detected. The concentrations of these compounds gradually decreased during the depuration period, but they were still detected 12d after exposure ceased (TBT 290±140ng/g; dibutyltin 1280±430ng/g). The biological half-life of TBT in wharf roach was estimated to be about 4d. In a field study conducted in 2011-2012, wharf roach were collected from 15 coastal sites in Japan and 3 sites in Manado, Indonesia. TBT was detected in both Japanese and Indonesian samples. The highest concentration of TBT was found in wharf roach collected at Bitung ferry port, Manado (57.9±16.5ng/g), which is close to a shipyard, and the highest concentration at a Japanese site was 12.3±6.2ng/g. Thus, we were able to detect organotins in the coastal environments by testing wharf roach, suggesting that L. exotica might serve as a good bioindicator for monitoring organotin pollution.
authors.affiliation: Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan.
authors.forename: Suzanne Lydia
authors.initials: SL
authors.lastname: Undap
authors.forename: Satoshi
authors.initials: S
authors.lastname: Matsunaga
authors.forename: Masato
authors.initials: M
authors.lastname: Honda
authors.forename: Toshio
authors.initials: T
authors.lastname: Sekiguchi
authors.forename: Nobuo
authors.initials: N
authors.lastname: Suzuki
authors.forename: Fatma
authors.initials: F
authors.lastname: Khalil
authors.forename: Xuchun
authors.initials: X
authors.lastname: Qiu
authors.forename: Yohei
authors.initials: Y
authors.lastname: Shimasaki
authors.forename: Hironori
authors.initials: H
authors.lastname: Ando
authors.forename: Waka
authors.initials: W
authors.lastname: Sato-Okoshi
authors.forename: Tomoki
authors.initials: T
authors.lastname: Sunobe
authors.forename: Satoshi
authors.initials: S
authors.lastname: Takeda
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Munehara
authors.forename: Yuji
authors.initials: Y
authors.lastname: Oshima
mesh_terms: D000818:Animals; D004784:Environmental Monitoring / Q000592:standards*; D006207:Half-Life; D007214:Indonesia; D033321:Isopoda / Q000187:drug effects* / Q000378:metabolism*; D007564:Japan; D009947:Organotin Compounds / Q000032:analysis* / Q000378:metabolism*; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000378:metabolism*
chemical_list: D009947:Organotin Compounds; D014874:Water Pollutants, Chemical; C056189:di-n-butyltin
keywords: Accumulation; Biomonitoring; Coastal environments; Tributyltin; Wharf roach