title: Metals in tissues of seabass and seabream reared in sites with oxic and anoxic substrata and risk assessment for consumers.
abstract: Twenty-eight metals and elements were measured in the muscle, liver, gills, bone and intestine of farmed seabass and gilthead seabream from four Mediterranean fish farms. The influence of fish species and the effect of environmental conditions on the metal accumulation in fish tissues was investigated. Most concentrations were lower in muscle and higher in liver and bone than in other body tissues. Seabass accumulates more elements in its tissues than seabream. Fish reared in coarse, oxic sites accumulate more elements with higher concentrations in muscle, bone and intestine and with lower concentrations in liver and gills than fish reared in silty, anoxic sites. This may be attributed to feed type and sediment properties. According to the metal pollution index, hazard quotient, selenium health benefit values, carcinogenic risk of arsenic, maximum safe consumption and the permitted limits, the consumption of both farmed species should be considered as safe for human health.
authors.affiliation: Biology Department, University of Crete, Voutes University Campus, 71003 Heraklion, Crete, Greece. Electronic address: kalantzi@biology.uoc.gr.
authors.forename: I
authors.initials: I
authors.lastname: Kalantzi
authors.affiliation: Chemistry Department, University of Crete, Voutes University Campus, 71003 Heraklion, Crete, Greece.
authors.forename: S A
authors.initials: SA
authors.lastname: Pergantis
authors.affiliation: Scottish Association for Marine Science, Scottish Marine Institute, Oban PA34 1QA, Scotland, United Kingdom.
authors.forename: K D
authors.initials: KD
authors.lastname: Black
authors.affiliation: Scottish Association for Marine Science, Scottish Marine Institute, Oban PA34 1QA, Scotland, United Kingdom.
authors.forename: T M
authors.initials: TM
authors.lastname: Shimmield
authors.affiliation: Biology Department, University of Crete, Voutes University Campus, 71003 Heraklion, Crete, Greece.
authors.forename: N
authors.initials: N
authors.lastname: Papageorgiou
authors.affiliation: Hellenic Centre for Marine Research, Institute of Oceanography, P.O. Box 2214, 71003 Heraklion, Crete, Greece.
authors.forename: M
authors.initials: M
authors.lastname: Tsapakis
authors.affiliation: Biology Department, University of Crete, Voutes University Campus, 71003 Heraklion, Crete, Greece.
authors.forename: I
authors.initials: I
authors.lastname: Karakassis
mesh_terms: D000818:Animals; D001492:Bass; D000075322:Heavy Metal Poisoning; D006801:Humans; D008670:Metals / Q000032:analysis*; D009928:Organ Specificity; D011041:Poisoning / Q000453:epidemiology*; D018570:Risk Assessment; D021541:Sea Bream; D017747:Seafood / Q000009:adverse effects*
chemical_list: D008670:Metals
keywords: Bioaccumulation; Farmed marine fish; Human risk assessment; Metals; Sediment geochemistry; Trace elements