Assessment of Essential Elements and Heavy Metals Content on Mytilus galloprovincialis from River Tagus Estuary

Santos, Isaac R.; Diniz, Mário; Carvalho, Luísa; Santos, J. P.

doi:10.1007/s12011-014-9974-y

Cited by 17 publications

(10 citation statements)

References 34 publications

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“…Moreover, the occurrence of illegal fishing can determinate a serious risk for human consumption, due to clam collection in microbiology or chemically polluted areas. It is well known that elements contamination in edible bivalves can determinate bioaccumulation in the trophic chain, especially in human consumers (Figueira et al, 2011) with consequent poisoning effects (Santos et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Metals and As content in sediments and Manila clam Ruditapes philippinarum in the Tagus estuary (Portugal): Impacts and risk for human consumption

Chiesa

Chainho

Almeida

et al. 2018

Marine Pollution Bulletin

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The Manila clam is emerging as a relevant species for the Portuguese market. The present work was conducted in the Tagus estuary to evaluate 1) the metals and As content in the sediments of the Tagus estuary, especially on those areas subjected to Manila clam harvesting 2) the metals and As content in clams, and the risk associated with their consumption 3) the physiological and biochemical responses of the clam to metals and As contamination, and its possible role as a pollution bioindicator in the estuarine environment. The most contaminated sediments were identified nearby industrial areas, nevertheless clams collected in low contaminated areas showed high metals and As concentrations. The condition index, glycogen content, membrane oxidative damage, biotransformation enzymes and metallothioneins showed consistent responses to metals and As content in clams. Results emphasize the need for the development of a management plan for the species exploitation in the Tagus estuary.

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Section: Introductionmentioning

confidence: 99%

Metals and As content in sediments and Manila clam Ruditapes philippinarum in the Tagus estuary (Portugal): Impacts and risk for human consumption

Chiesa

Chainho

Almeida

et al. 2018

Marine Pollution Bulletin

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“…There is a dire need, to evaluate the effect of pollution on biomarkers such as DNA fragmentation (Hussain et al, 2016). The aquatic fauna and flora is exposed to the pesticides and heavy metals, which is main the main of genotoxicity in fish (Souza and Fontanetti, 2006;Santos et al, 2014;Saeedi Saravi and Shokrzadeh, 2013). The increasing loads of these toxicants pollute the freshwater ecosystem and pose serious human health risks (Zhao et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Assessment of heavy metals and its impact on DNA fragmentation in different fish species

et al. 2020

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This study was conducted to assess water pollution by examining DNA fragmentation in selected fish organs (kidney, liver, gills, and muscle tissue) from Wallago attu, Sperata sarwari, Vulgaris vulgaris, and Labeo rohita collected from a known polluted section of the Chenab River, Pakistan, and from a control site. The fish were caught using a gill net and were assigned to three different weight groups (W1, W2, and W3) to study the degree of variation in DNA fragmentation in relation to body weight. In fish from the polluted site, DNA fragmentation was higher in kidney, liver, gills, and muscles, compared to the control. No significant DNA fragmentation was observed in fish collected from the control site. Highly significant (P < 0.01) relationship between body weight and DNA fragmentation was found in the organs of fish procured at the contaminated site. DNA fragmentation in body organs was found to be affected by the concentrations of lead, copper, nickel, and cadmium in W. attu, S. sarwari, L. rohita, and V. vulgarus harvested from Chenab River. DNA fragmentation in different freshwater fish species is therefore a reliable biomarker of water pollution.

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“…Essential metals have a role in biological functions, but in higher concentrations they may become toxic by disrupting metabolic activities [1,2]. On the other hand, nonessential metals, such as toxic metals resulting in the water from fine suspended solids, may alter the feeding rate of fish and determine a reduction in the metabolic efficiency [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Contamination of the marine environment has risen in the last years, and is correlated with exponential human population increase and therefore, with an upward trend in anthropogenic pressure, a fact that may harm all the aquatic ecosystems [2,6,[18][19][20][21]. With the exception of the organically-bound elements (hydrogen, carbon, nitrogen and oxygen), there are approximately 20 inorganic mineral elements which are considered to be essential to sustain animal life, including fish [1,2]. The physiological role of essential elements such as K, P, Na, Mg and Ca is related to skeletal structure, the maintenance of the colloidal system and regulation of the acid-base equilibrium [22].…”

Section: Introductionmentioning

confidence: 99%

Bioconcentration of Essential and Nonessential Elements in Black Sea Turbot (Psetta Maxima Maeotica Linnaeus, 1758) in Relation to Fish Gender

Simionov

Cristea

Petrea

et al. 2019

JMSE

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This study investigates the influence of gender in the bioconcentration of essential and nonessential elements in different parts of Black Sea turbot (Psetta maxima maeotica) body, from an area considered under high anthropogenic pressure (the Constanta City Black Sea Coastal Area in Romania). A number of 13 elements (Ca, Mg, Na, K, Fe, Zn, Mn, Cu, Ni, Cr, As, Pb and Cd) were measured in various sample types: muscle, stomach, stomach content, intestine, intestine content, gonads, liver, spleen, gills and caudal fin. Turbot adults (4–5 years old) were separated, according to their gender, into two groups (20 males, 20 females, respectively), and a high total number of samples (1200 from both groups) were prepared and analyzed, in triplicate, with Flame Atomic Absorption Spectrometry and High-Resolution Continuum Source Atomic Absorption Spectrometry with Graphite Furnace techniques. The results were statistically analyzed in order to emphasize the bioconcentration of the determined elements in different tissues of wild turbot males vs. females, and also to contribute to an upgraded characterization of the Romanian Black Sea Coast, around Constanta City, in terms of heavy metals pollution. The essential elements Mg and Zn have different roles in the gonads of males and females, as they were the only elements with completely different patterns between the analyzed groups of specimens. The concentrations of studied elements in muscle were not similar with the data provided by literature, suggesting that chemistry of the habitat and food plays a major role in the availability of the metals in the body of analyzed fish species. The gender influenced the bioaccumulation process of all analyzed elements in most tissues since turbot male specimens accumulated higher concentration of metals compared to females. The highest bioaccumulation capacity in terms of Ca, Mg, Na, Ni, As, Zn and Cd was registered in caudal fin, liver and intestine tissues. Also, other elements such as K, Fe, Cu and Mn had the highest bioaccumulation in their muscle, spleen, liver and gills tissues. The concentrations of toxic metals in Black Sea turbot from this study were lower in the muscle samples compared with the studies conducted in Turkey, suggesting that the anthropogenic activity in the studied area did not pose a major impact upon the habitat contamination.

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Assessment of Essential Elements and Heavy Metals Content on Mytilus galloprovincialis from River Tagus Estuary

Cited by 17 publications

References 34 publications

Metals and As content in sediments and Manila clam Ruditapes philippinarum in the Tagus estuary (Portugal): Impacts and risk for human consumption

Metals and As content in sediments and Manila clam Ruditapes philippinarum in the Tagus estuary (Portugal): Impacts and risk for human consumption

Assessment of heavy metals and its impact on DNA fragmentation in different fish species

Bioconcentration of Essential and Nonessential Elements in Black Sea Turbot (Psetta Maxima Maeotica Linnaeus, 1758) in Relation to Fish Gender

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