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Iamiceli A.,Italian National Institute for Health | Ubaldi A.,Istituto Zooprofilattico Sperimentale del Lazio e Toscana | Lucchetti D.,Istituto Zooprofilattico Sperimentale del Lazio e Toscana | Brambilla G.,Italian National Institute for Health | And 19 more authors.
Marine Pollution Bulletin | Year: 2015

Metals such as arsenic (As), cadmium (Cd), copper (Cu), chromium (Cr), nickel (Ni), lead (Pb), vanadium (V), have been determined in species of Mediterranean marine organisms collected from areas supposed to be at background contamination levels. The Inductively Coupled Plasma Mass Spectrometry (ICP-MS) approach was adopted for the determination of all the metals. Arsenic, Cd and Pb determined in the 42 samples, do not exceed the pertinent maximum level except a sample of hake. In wild fish, the concentration range for Cr, Ni, V and Cu was, respectively: 0.07-0.09, 87.6-124, 0.022-0.075 and 0.79-1.74. μg/g fresh weight (fw). The farmed fish samples show concentration levels below the wild fish ones, except for Cr which range at the same levels. Cadmium and Pb show a high sample number under the quantification limit. The elements do not bio-magnify among the species considered and appear to show low variations in relation to organisms' position in the food chain and at sampling sites. © 2015 Elsevier Ltd.

Miniero R.,Italian National Institute for Health | Abate V.,Italian National Institute for Health | Brambilla G.,Italian National Institute for Health | Davoli E.,Istituto di Ricerche Farmacologiche Mario Negri | And 19 more authors.
Science of the Total Environment | Year: 2014

Fish and fishery products may represent one of the main sources of dietary exposure to persistent toxic substances (PTSs) such as polychlorinated dibenzodioxins, dibenzofurans, and biphenyls; polybromodiphenyl ethers; organochlorine pesticides; perfluorooctanoic acid and perfluorooctane sulfonate; and inorganic mercury and methyl mercury. In this study, PTS contamination of Mediterranean fish and crustaceans caught in Italian coastal waters was investigated in order to increase the representativeness of the occurrence database for wild species. The objectives were to verify the suitability of regulatory limits for PTSs, identify background concentrations values, if any, and examine the possible sources of variability when assessing the chemical body burdens of aquatic species. Twelve wild species of commercial interest and two farmed fish species were chosen. Excluding methyl mercury, chemical concentrations found in wild species fell generally towards the low ends of the concentration ranges found in Europe according to EFSA database and were quite lower than the tolerable maximum levels established in the European Union; farmed fish always showed contamination levels quite lower than those detected in wild species. The data obtained for wild species seemed to confirm the absence of local sources of contamination in the chosen sampling areas; however, species contamination could exceed regulatory levels even in the absence of specific local sources of contamination as a result of the position in the food web and natural variability in species' lifestyle. A species-specific approach to the management of contamination in aquatic organisms is therefore suggested as an alternative to a general approach based only on contaminant body burden. A chemical-specific analysis performed according to organism position in the food chain strengthened the need to develop this approach. © 2014 Elsevier B.V.

Roncarati A.,University of Camerino | Brambilla G.,Italian National Institute of Health | Meluzzi A.,University of Bologna | Iamiceli A.L.,Italian National Institute of Health | And 8 more authors.
Journal of Applied Ichthyology | Year: 2012

Summary: The study examined the proximate composition, cholesterol content and fatty acid profile of fillet from the most important species captured in Italian seas and commonly consumed in the European Union, such as anchovy (Engraulis encrasicholus L.), red mullet (Mullus barbatus L.), European hake (Merluccius merluccius L.) and Atlantic bonito (Sarda sarda L.). The fish were caught in three different geographic areas of the Italian seas: south Tyrrhenian (ST), south Adriatic (SA) and Ionian (IO). Anchovy from the ST sea had the highest lipid content (2.27%) compared to fish captured in the SA (1.81%) and IO seas (1.91%) (P<0.01). Red mullet captured in the SA exhibited the highest amount of lipid content (7.54%) compared to fish from the ST (1.82%) and IO seas (3.23%) (P<0.01). The total cholesterol content of fish did not show significant differences from one geographic area to the other, particularly for European hake (from 98 to 66mg per 100g). The fatty acid profile of anchovy species was not affected by the geographical capture area. European hake caught in the ST sea showed the highest proportion of DHA (29.13%) in comparison to those captured in the SA (19.98%) and IO seas (19.84%). Atlantic bonito from the ST had the highest proportions of DHA (24.94%), compared to those from the SA (12.08%) and IO seas (13.83%). The SA bonitos contained a significantly lower proportion of EPA (3.31%) in comparison to fish from both the ST and IO seas (5.66 and 5.17%, respectively). Red mullet captured in the ST exhibited the highest proportions of DHA, n-3 PUFA, and total PUFA, and significantly lower proportions of oleic acid and MUFA. The fish from the ST sea showed better nutritional traits than those from other geographical areas although they all had excellent nutritional traits due to the low fat content and very high n-3 PUFA proportion. © 2012 Blackwell Verlag, Berlin.

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