title: Distribution of trace metals in surface seawater and zooplankton of the Bay of Bengal, off Rushikulya estuary, East Coast of India.
abstract: Concentrations of trace metals such as iron (Fe), copper (Cu), zinc (Zn), cobalt (Co), nickel (Ni), manganese (Mn), lead (Pb), cadmium (Cd), chromium (Cr), arsenic (As), vanadium (V), and selenium (Se) were determined in seawater and zooplankton from the surface waters off Rushikulya estuary, north-western Bay of Bengal. During the study period, the concentration of trace metals in seawater and zooplankton showed significant spatio-temporal variation. Cu and Co levels in seawater mostly remained non-detectable. Other elements were found at higher concentrations and exhibited marked variations. The rank order distribution of trace metals in terms of their average concentration in seawater was observed as Fe>Ni>Mn>Pb>As>Zn>Cr>V>Se>Cd while in zooplankton it was Fe>Mn>Cd>As>Pb>Ni>Cr>Zn>V>Se. The bioaccumulation factor (BAF) of Fe was highest followed by Zn and the lowest value was observed with Ni. Results of correlation analysis discerned positive affinity and good relationship among the majority of the trace metals, both in seawater and zooplankton suggesting their strong affinity and coexistence.
authors.affiliation: Department of Marine Sciences, Berhampur University, Brahmapur, Odisha 760007, India. Electronic address: suchismita.sima@gmail.com.
authors.forename: Suchismita
authors.initials: S
authors.lastname: Srichandan
authors.affiliation: Department of Marine Sciences, Berhampur University, Brahmapur, Odisha 760007, India.
authors.forename: R C
authors.initials: RC
authors.lastname: Panigrahy
authors.affiliation: Indian National Centre for Ocean Information Services (INCOIS), Ocean Valley, Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500090, India.
authors.forename: S K
authors.initials: SK
authors.lastname: Baliarsingh
authors.affiliation: Centre for Studies on Bay of Bengal, Andhra University, Visakhapatnam 530003, India.
authors.forename: Srinivasa
authors.initials: S
authors.lastname: Rao B
authors.affiliation: Department of Marine Sciences, Berhampur University, Brahmapur, Odisha 760007, India.
authors.forename: Premalata
authors.initials: P
authors.lastname: Pati
authors.affiliation: Department of Marine Sciences, Berhampur University, Brahmapur, Odisha 760007, India.
authors.forename: Biraja K
authors.initials: BK
authors.lastname: Sahu
authors.affiliation: Department of Marine Sciences, Berhampur University, Brahmapur, Odisha 760007, India.
authors.forename: K C
authors.initials: KC
authors.lastname: Sahu
mesh_terms: D000818:Animals; D061006:Bays; D004784:Environmental Monitoring / Q000379:methods; D063366:Estuaries; D007194:India; D008670:Metals / Q000032:analysis*; D012623:Seawater / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000493:pharmacokinetics; D015048:Zooplankton / Q000737:chemistry* / Q000378:metabolism
chemical_list: D008670:Metals; D014874:Water Pollutants, Chemical
keywords: Bioaccumulation factor; Rushikulya estuary; Seawater; Trace metals; Zooplankton