Trace elements levels in muscle and liver of a rarely investigated large pelagic fish: The Mediterranean spearfish Tetrapturus belone (Rafinesque, 1810)

Ancora, Stefania; Mariotti, G; Ponchia, Rosetta; Fossi, María Cristina; Leonzio, Claudio; Bianchi, Nicola

doi:10.1016/j.marpolbul.2019.110878

Cited by 7 publications

(5 citation statements)

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“…Being a semi-enclosed sea, delimited by highly industrialized countries and characterized by large deposits of cinnabar (HgS), the Mediterranean Sea is at a high-risk for contamination by toxic compounds [45], and evidence exists that significant anthropogenic chemical inputs into the Mediterranean began in prehistoric times [46]. In line with this, several studies have shown higher levels of contaminants in marine organisms from the Mediterranean Sea compared to those from other geographic areas [47]. At the same time, the European countries bordering the Mediterranean are among the world's highest seafood consumers, with Spain, Italy and France accounting for more than half of the European expenditure on fish and fishery products, despite having only around a third of the EU's population (EUROSTAT, 2014).…”

Section: Pahsmentioning

confidence: 94%

“…Several studies have highlighted the role of trophic level, habitat and size of the organism in determining the level of MeHg in sea animals. In particular, despite discordant evidence [121,166], MeHg concentration in fishes often increases with trophic level [126,167], size and age [47], with MeHg uptake being a process of bioaccumulation during the whole life [118], and other studies show that MeHg concentrations are affected also by changes in feeding habits during fish lifespan [132]. The relationship between size and MeHg concentration in marine invertebrates is rather less clear: while some results point to a positive correlation between these two variables in bivalves and crustaceans [124,168], others show a negative [120,169] or no significant correlation [124] in the same taxonomic classes, or even in the same species.…”

Section: Challengesmentioning

confidence: 99%

“…The Mediterranean Sea is generally considered a geological hot spot for mercury [26], as it is characterized by large deposits of HgS that account for about 65% of the global mercury reserves [113]. Moreover, it should not be surprising that several studies have shown higher levels of contaminants in marine organisms from the Mediterranean Sea compared to those from other geographic areas [6,47,[114][115][116], with levels of PAHs and especially Hg often exceeding recommended limits for human consumption [6,30,117,118] Concerning Hg, in particular, the highest concentrations in Europe tend to be found in fish caught in the Mediterranean Sea [16]. Data showed a more marked Hg bioavailability in the Tyrrhenian and the Adriatic coastal waters compared to the rest of the Mediterranean [119], and MeHg levels higher than the legal limit have been discovered in seafood caught in both areas [117,118,[120][121][122][123][124], as well as in the Ionian Sea (Sidimar 2018), and in different classes of marine organisms, including fishes, crustaceans, and mollusks.…”

Section: Mediterranean Coastal Communities As An Informative Case Studymentioning

confidence: 99%

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Methylmercury and Polycyclic Aromatic Hydrocarbons in Mediterranean Seafood: A Molecular Anthropological Perspective

et al. 2021

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Eating seafood has numerous health benefits; however, it constitutes one of the main sources of exposure to several harmful environmental pollutants, both of anthropogenic and natural origin. Among these, methylmercury and polycyclic aromatic hydrocarbons give rise to concerns related to their possible effects on human biology. In the present review, we summarize the results of epidemiological investigations on the genetic component of individual susceptibility to methylmercury and polycyclic aromatic hydrocarbons exposure in humans, and on the effects that these two pollutants have on human epigenetic profiles (DNA methylation). Then, we provide evidence that Mediterranean coastal communities represent an informative case study to investigate the potential impact of methylmercury and polycyclic aromatic hydrocarbons on the human genome and epigenome, since they are characterized by a traditionally high local seafood consumption, and given the characteristics that render the Mediterranean Sea particularly polluted. Finally, we discuss the challenges of a molecular anthropological approach to this topic.

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Section: Pahsmentioning

confidence: 94%

Section: Challengesmentioning

confidence: 99%

Section: Mediterranean Coastal Communities As An Informative Case Studymentioning

confidence: 99%

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Methylmercury and Polycyclic Aromatic Hydrocarbons in Mediterranean Seafood: A Molecular Anthropological Perspective

et al. 2021

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“…The present study found a signi cant positive correlation between Cd concentrations in liver tissues and the weight of the sh. This might be due to the increased induction of cadmium-binding protein in the liver with increasing specimen size (Ancora et al 2020).…”

Section: Tissue Variation Of CD In Juvenile T Albacaresmentioning

confidence: 99%

Bioaccumulation of cadmium in muscle and liver tissues of juvenile Yellowfin tuna (Thunnus albacares) from the Indian Ocean.

Jayaweera,

Gunawickrama,

Evenset

et al. 2024

Preprint

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The present study evaluated the cadmium (Cd) levels and temporal variation of Cd in dark muscle, white muscle, and liver of juvenile Thunnus albacares. 72 individuals (Standard length: 50 -67cm; weight: 0.8 kg - 2.5 kg) were collected from the selected landing sites in Sri Lanka during the period between April 2021 to May 2022. Total Cd levels were analyzed using an inductivity-coupled Coupled Plasma Mass Spectrophotometer. The mean Cd levels (mean ± SD mg/kg dry weight) in different tissues varied with significantly higher levels in the liver (13.62 ± 0.98, p < 0.05), compared to dark muscle (0.52 ± 0.05), and white muscle (0.42 ± 0.04). Cd levels in liver tissues were positively correlated (p < 0.05) with the fish weight. The highest Cd levels in liver tissue and dark muscle were reported in October 2021 (26.35 ± 3.46, 0.93 ± 0.10 mg/kg d.w. respectively) while in white muscle, the highest Cd level was found in November (0.60 ± 0.07 mg/kg d.w.). The Cd levels reported in dark muscles, white muscles, and liver tissues were significantly higher (p < 0.05) during 2nd inter-monsoon than in the other monsoonal regimes. The measured Cd levels (mg/kg wet weight) in white and dark muscles, were well below the maximum permissible level (0.2 mg/kg wet weight) set by WHO/FAO, but in the liver tissues of all samples were above the level. Accordingly, the edible flesh (white and dark muscles) of T. albacares from the Indian Ocean can be considered safe for human consumption whereas the liver tissues are unsafe. A human with a body weight of 60 kg can consume white muscles up to 4.667 kg per week without exceeding the Provisional Tolerable Weekly Intake defined by WHO/FAO.

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“…Once vegetated, this intertidal area provides vital habitats for a number of species, including salt marshes, mangroves, etc. (Ancora et al, 2020;Kwon et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

The impact of wind‐waves and sea level rise on the morphodynamics of a sandy estuarine shoal

Zheng

Elmilady

Röbke

et al. 2021

Earth Surf Processes Landf

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Intertidal shoals are pronounced morphological features found in many estuaries worldwide. Apart from maintaining an ecologically unique intertidal environment, shoals also protect adjacent dyke systems by attenuating waves. The fate of sandy shoals under anticipated sea level rise (SLR) scenarios is underexplored.The current research investigates the long-term morphodynamic evolution of estuarine sandy shoals under forcing by short fetch, locally generated wind-waves, tides, and SLR by means of a numerical, process-based model (Delft3D). The focus lies on a sheltered shoal complex in the Western Scheldt, the Netherlands. Starting from the initial, 1963 bathymetry, we model 50-year morphodynamic development with schematized wind-wave forcing. We analyze in detail the impact of locally generated wind-waves on shoal formation. Finally, we impose regional SLR of 1.10 m and 1.95 m for 100 years.Model results show that, on the spatial scale of intertidal flats, small, locally generated wind-waves lower and widen the shoals while the adjacent channels deepen.However, on the estuarine system scale, wind-waves do not lead to fundamentally different channel-shoal patterns and morphodynamic evolution trends. This suggests that channel-shoal formation is mainly due to tide residual sediment transports, with wind-waves playing a secondary role. SLR leads to a notable intertidal area loss, despite a continuous heightening of the shoals, implying that morphodynamic adaptation lags behind SLR. The inclusion of wind-waves does not fundamentally change the reaction of the estuarine shoal to SLR. Future research may focus on exploring the impact of including multiple sediment classes.

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Trace elements levels in muscle and liver of a rarely investigated large pelagic fish: The Mediterranean spearfish Tetrapturus belone (Rafinesque, 1810)

Cited by 7 publications

References 98 publications

Methylmercury and Polycyclic Aromatic Hydrocarbons in Mediterranean Seafood: A Molecular Anthropological Perspective

Methylmercury and Polycyclic Aromatic Hydrocarbons in Mediterranean Seafood: A Molecular Anthropological Perspective

Bioaccumulation of cadmium in muscle and liver tissues of juvenile Yellowfin tuna (Thunnus albacares) from the Indian Ocean.

The impact of wind‐waves and sea level rise on the morphodynamics of a sandy estuarine shoal

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