title: Contamination status and spatial distribution of organochlorine compounds in fishes from Nansei Islands, Japan.
abstract: Two species of fishes (n=52; tilapia and mullet) from industrialized and urbanized areas of Okinawa Island (Manko-Noha river, Hija river and Shikaza river) and from a remote area of Ishigaki Island (Anparu mudflat), Japan were collected between August 2005 and July 2006, and analyzed for five organochlorine compounds (OCs), viz., DDTs, PCBs, CHLs, HCHs and HCB. Concentrations and the contamination patterns of OCs in fishes varied between locations. Considerable residue levels of OCs, especially CHLs and DDTs were found in both fishes from the main Okinawa Island. These levels were relatively higher than the reported values for seafood from Japanese coasts, indicating that even now pollution sources of these contaminants still exist in this region. On the other hand, lower concentrations of OCs were detected in fishes from Ishigaki Island waters than those of other Japanese coastal waters, suggesting that this region is less contaminated by OC contaminants.
authors.affiliation: Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan.
authors.forename: Govindan
authors.initials: G
authors.lastname: Malarvannan
authors.forename: Shin
authors.initials: S
authors.lastname: Takahashi
authors.forename: Tokutaka
authors.initials: T
authors.lastname: Ikemoto
authors.forename: Tomohiko
authors.initials: T
authors.lastname: Isobe
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Kunisue
authors.forename: Agus
authors.initials: A
authors.lastname: Sudaryanto
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Miyagi
authors.forename: Masaru
authors.initials: M
authors.lastname: Nakamura
authors.forename: Shigeki
authors.initials: S
authors.lastname: Yasumura
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Tanabe
mesh_terms: D000818:Animals; D004784:Environmental Monitoring; D005260:Female; D005399:Fishes / Q000378:metabolism*; D005618:Fresh Water / Q000737:chemistry; D006843:Hydrocarbons, Chlorinated / Q000032:analysis / Q000378:metabolism*; D007564:Japan; D008297:Male; D018570:Risk Assessment; D023701:Smegmamorpha / Q000378:metabolism; D017210:Tilapia / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data
chemical_list: D006843:Hydrocarbons, Chlorinated; D014874:Water Pollutants, Chemical