Mercury and Arsenic Speciation in the Muscle Tissue of Scyliorhinus canicula from the Mediterranean Sea

Storelli, Maria Maddalena; Busco, V.P.; Marcotrigiano, G.

doi:10.1007/s00128-005-0721-0

Cited by 23 publications

(16 citation statements)

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“…Mean values observed for teleosts and sharks considered in this work are even higher than values previously reported for these species (Table 3) and also for species at similar trophic level in the Mediterranean. Previous values reported for piscivorous species show mean Hg concentrations between 0.5 to 1 µg g -1 dm, and maximum values generally lower than 2.5 µg g -1 dm (Cossa et al, 2012;Harmelin-Vivien et al, 2012;Koenig et al, 2013;Storelli and Barone, 2013;Storelli et al, 2005). Mean values observed in this work were at least similar or higher than these maximum values.…”

Section: High Hg Concentration In the Slope's Organismssupporting

confidence: 63%

“…Assessment of mercury concentrations was mainly performed in shallow Mediterranean species of commercial or cultural interest. Numerous studies have investigated trophic position and Hg concentration in species such as hake, mullet, tuna or marine mammals (Andre et al, 1991;Cossa et al, 2012;Harmelin-Vivien et al, 2009;Storelli and Barone, 2013;Storelli et al, 2005;Thibaud, 1971). Fewer data are available regarding Hg concentrations for species living in deep Mediterranean waters (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Mercury in organisms from the Northwestern Mediterranean slope: Importance of food sources

Cresson

Fabri

Bouchoucha

et al. 2014

Science of The Total Environment

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Mercury (Hg) is a global threat for marine ecosystems, especially within the Mediterranean Sea. The concern is higher for deep-sea organisms, as the Hg concentration in their tissues is commonly high. To assess the influence of food supply at two trophic levels, total Hg concentrations and carbon and nitrogen stable isotope ratios were determined in 7 species (4 teleosts, 2 sharks, and 1 crustacean) sampled on the upper part of the continental slope of the Gulf of Lions (Northwestern Mediterranean Sea), at depths between 284 and 816 m. Mean Hg concentrations ranged from 1.30±0.61 to 7.13±7.09 μg g(-1) dry mass, with maximum values observed for small-spotted catshark Scyliorhinus canicula. For all species except blue whiting Micromesistius poutassou, Hg concentrations were above the health safety limits for human consumption defined by the European Commission, with a variable proportion of the individuals exceeding limits (from 23% for the Norway lobster Nephrops norvegicus to 82% for the blackbelly rosefish Helicolenus dactylopterus). Measured concentrations increased with increasing trophic levels. Carbon isotopic ratios measured for these organisms demonstrated that settling phytoplanktonic organic matter is not only the main source fueling trophic webs but also the carrier of Hg to this habitat. Inter- and intraspecific variations of Hg concentrations revealed the importance of feeding patterns in Hg bioaccumulation. In addition, biological parameters, such as growth rate or bathymetric range explain the observed contamination trends.

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Section: High Hg Concentration In the Slope's Organismssupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Mercury in organisms from the Northwestern Mediterranean slope: Importance of food sources

Cresson

Fabri

Bouchoucha

et al. 2014

Science of The Total Environment

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“…It is evident that information regarding tissue distribution of metals in sharks is fragmented, except for Hg presence in muscular tissue. Hg levels quite always high have, in fact, been reported in the muscle of various shark species from marine worldwide (Storelli et al 2001(Storelli et al , 2003(Storelli et al , 2005Adams and McMichael 1999;Ferreira et al 2004;Pinho et al 2002;Turoczy et al 2000;Pethybridge et al 2010). The biological traits of these animals as longevity and slow growth rates, in conjunction with the high trophic status of many shark species, have been invoked to explain the high levels encountered in their meats (Lyle 1984 Windom et al 1973) revealed higher brain levels and comparable skin levels (0.02-0.28 μg g −1 ; Pethybridge et al 2010) with respect to those encountered in the organisms under study.…”

Section: Tissue/organ Distribution Of Concentrationsmentioning

confidence: 99%

“…As for marine mammals and seabirds, sharks are particularly susceptible of accumulating significant levels of trace metals in their tissues, resulting key indicators of the environmental contamination status (Marcovecchio et al 1991;Vas 1991). Previous studies have, in fact, demonstrated the ability of elasmobranch fish to accumulate high concentrations of potentially toxic elements, such as mercury and methylmercury (Pethybridge et al 2010;Storelli et al 2001, arsenic (Storelli and Marcotrigiano 2004;Storelli et al 2005;Windom et al 1973), as well as copper and zinc (Lowman et al 1966). This aspect is especially interesting for biota residing in contaminated marine areas.…”

Section: Introductionmentioning

confidence: 97%

Distribution of trace elements in the tissues of smooth hound Mustelus mustelus (Linnaeus, 1758) from the southern–eastern waters of Mediterranean Sea (Italy)

Storelli

Cuttone

Marcotrigiano

2010

Environ Monit Assess

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Trace element concentrations (Hg, Cd, Pb, Cr, Ni, Cu, Zn) were determined in the muscle, gonads, skin, and brain of smooth hound Mustelus mustelus in order to define the metal distribution patterns. The data indicated that metal accumulation depended on the tissues probably as a consequence of metabolic needs, physiochemical properties, and detoxification processes specific for each element. Metal concentrations were higher in gonads (Hg 0.10-0.70 μg g(-1); Cd 0.02-0.10 μg g(-1); Pb 0.08-0.39 μg g(-1); Cr 0.06-0.36 μg g(-1); Ni 1.37-3.00 μg g(-1); Zn 9.15-16.30 μg g(-1); Cu 1.95-21.62 μg g(-1)) and skin (Hg 0.16-0.66 μg g(-1); Cd 0.01-0.04 μg g(-1); Pb 0.10-0.62 μg g(-1); Cr 0.15-0.68 μg g(-1); Ni 1.60-7.20 μg g(-1); Zn 9.00-16.00 μg g(-1); Cu 0.78-6.80 μg g(-1)) than brain (Hg 0.04-0.34 μg g(-1); Cd 0.01-0.05 μg g(-1); Pb 0.03-0.59 μg g(-1); Cr 0.08-0.48 μg g(-1); Ni 5.59-9.69 μg g(-1); Zn 5.90-7.35 μg g(-1); Cu 0.90-4.02 μg g(-1)), while muscle always exhibited the lowest levels (Hg 1.03-2.58 μg g(-1); Cd 0.01-0.06 μg g(-1); Pb 0.02-0.16 μg g(-1); Cr 0.05-0.28 μg g(-1); Ni 1.13-2.48 μg g(-1); Zn 2.64-5.06 μg g(-1); Cu 0.33-2.23 μg g(-1)). Ni and Hg took exception having the highest concentrations in brain and muscle, respectively. An assessment of the risk for human due to the consumption of these marine organisms was also undertaken. Regarding Cd and Pb intakes, consumption did not guide to any concerns, while it should be extremely moderate when considering Hg intake. The comparative analyses revealed that Mediterranean sharks were exposed to higher Hg levels than biota inhabiting open ocean.

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“…In the Tyrrhenian Sea, Pb concentrations given in literature are significantly higher than those found in the western area. barbatus [20]. surmuletus and M. merlucius [8] to 1.600 mg/g in a noncommercial demersal fish [9].…”

Section: Mercurymentioning

confidence: 99%

Heavy Metals in Fish from the Mediterranean Sea

Copat

Conti

Fallico

et al. 2015

The Mediterranean Diet

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Mercury and Arsenic Speciation in the Muscle Tissue of Scyliorhinus canicula from the Mediterranean Sea

Cited by 23 publications

References 0 publications

Mercury in organisms from the Northwestern Mediterranean slope: Importance of food sources

Mercury in organisms from the Northwestern Mediterranean slope: Importance of food sources

Distribution of trace elements in the tissues of smooth hound Mustelus mustelus (Linnaeus, 1758) from the southern–eastern waters of Mediterranean Sea (Italy)

Heavy Metals in Fish from the Mediterranean Sea

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