title: Trace elements and stable isotopes (delta13C and delta15N) in shallow and deep-water organisms from the East China Sea.
abstract: Trace elements (22) and stable isotope ratios (delta15N and delta13C) were analyzed in marine organisms from shallow (SW) and deep-water (DW) of the East China Sea to understand biomagnification and prey source of trace elements. In the benthic marine organisms from DW, delta15N values were negatively correlated with Ba, Cu, Ag, Mo, Sr, As, and Co concentrations. This may be due to the specific accumulation in lower trophic animals and/or the biodilution through the food web in DW. Relationships between delta15N and concentrations of Co, Cr, Bi, and Tl in fish and Ag, Bi, V, Hg, and Tl in crustaceans showed positive correlations, suggesting that trophic position was affecting the concentrations of those elements in phyla, with higher trophic animals retaining higher concentrations than the lower trophic animals. Positive correlations between delta13C and Rb were observed in marine organisms. Therefore, Rb may be a possible substitute of delta13C as tracer of prey source in the East China Sea although further investigation is required.
authors.affiliation: Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan.
authors.forename: Kwadwo Ansong
authors.initials: KA
authors.lastname: Asante
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Agusa
authors.forename: Hiroko
authors.initials: H
authors.lastname: Mochizuki
authors.forename: Karri
authors.initials: K
authors.lastname: Ramu
authors.forename: Suguru
authors.initials: S
authors.lastname: Inoue
authors.forename: Tsunemi
authors.initials: T
authors.lastname: Kubodera
authors.forename: Shin
authors.initials: S
authors.lastname: Takahashi
authors.forename: Annamalai
authors.initials: A
authors.lastname: Subramanian
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Tanabe
mesh_terms: D000818:Animals; D002681:China; D003445:Crustacea; D004784:Environmental Monitoring / Q000379:methods; D005399:Fishes; D020387:Food Chain; D005506:Food Contamination; D007448:Invertebrates; D007554:Isotopes / Q000032:analysis*; D020714:Maximum Tolerated Dose; D009792:Oceans and Seas; D014131:Trace Elements / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D015048:Zooplankton
chemical_list: D007554:Isotopes; D014131:Trace Elements; D014874:Water Pollutants, Chemical