Spatial and seasonal variations of trace elements concentrations in liver and muscle of round Sardinelle (Sardinella aurita) and Senegalese sole (Solea senegalensis) along the Senegalese coast

Diop, Mamadou; Howsam, Michael; Diop, Cheikh; Cazier, Fabrice; Goossens, Jean Francois; Diouf, A.; Amara, Rachid

doi:10.1016/j.chemosphere.2015.08.085

Cited by 20 publications

(13 citation statements)

References 31 publications

(40 reference statements)

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“…The results demonstrated that, whatever the species, elements show higher concentrations in liver than in muscle tissue (Tables 2, 3) as reported in other studies (Diop et al 2016).…”

Section: Metal Concentrations In Fish Organssupporting

confidence: 78%

“…Thus, most organisms have biochemical mechanisms control the amount of these elements into their cells. A number of studies had investigated metal contents in small pelagic fish tissues comparing with those studies, levels of Cu, Mn, Cr, Ni, Fe, Zn Pb and Cd reported in our study are in agreement with those found in muscle and liver of sardine from the upwelled water of Senegalese coast (Diop et al 2016) except for Cr, Fe, Pb and Cd contents in liver which were higher than our results. Also, El Morhit et al (2013) reported metal content in muscle of sardine collected from South Atlantic coast of Morocco, which were in same order of magnitude than our results but with higher content of Ni.…”

Section: Metal Accumulation Patternscontrasting

confidence: 34%

“…This result can explain the high Cd content in muscle of anchovy which feed directly on plankton. The concentrations of Cd in liver and muscle of marine fish were in the same order of those reported in Mauritanian coast (Sidoumou et al 2005;Romeo et al 1999;Diop et al 2016) and higher than those reported in pelagic fish from Moroccan coast (in central and south zone) (Chahid et al 2014;Afandi et al 2015) and in Portuguese water (Vieira et al 2011). However, metals such as Fe, Zn, Mn, Cr, Ni, Co and Cu are essential elements with useful biological functions.…”

Section: Metal Accumulation Patternsmentioning

confidence: 61%

“…Cadmium is particularly concentrated in liver of the four studied fish species (Table 2). Data from a previous study showed that cadmium level in liver of various species is less than 10 mg/kg d.w., and more often less than 1 mg/kg d.w. (Romeo et al 1999;Henry et al 2004;Diop et al 2016). Cadmium were already founded at high levels in fish and mollusks from West African coastal areas such as the Mauritanian water (Romeo et al 1999;Sidoumou et al 2005), Moroccan coast (Benbrahim et al 2006;Maanan 2008;El Morhit et al 2013) or Senegalese coast (Bodin et al 2013;Diop et al 2016).…”

Section: Metal Accumulation Patternsmentioning

confidence: 99%

“…Therefore, it is important to evaluate the concentration of toxic elements in fish, because it is representing a potential health risks to the fish organisms and to the higher trophic level organism like humans that potentially consume them (Li et al 2015;Vu et al 2017). Actually, numerous studies have been carried out on trace metals contamination of different species of edible fish (Prudente et al 1997;Kucuksezgin et al 2001;Lewis et al 2002;El Morhit et al 2009;Chahid et al 2014;Afandi et al 2015;Diop et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Trace metal distribution in pelagic fish species from the north-west African coast (Morocco)

et al. 2018

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In the current study, ten elements contents (Fe, Zn, Mn, Cu, Cr, Co, Ni, Cd, Pb and Hg) have been measured in muscle and liver of four pelagic fish species (Engraulis encrasicolus, Sardina pilchardus, Scomber japonicus and Trachurus trachurus) from the north-west African coast (South Atlantic Moroccan coast), collected during summer and autumn seasons (July and December 2013, respectively). Significant differences in metal contents were found between the different species (p \ 0.05). Metals levels were also much higher in liver than those recorded in muscle tissues. The concentrations of Fe, Zn, Cd, Co, Cu and Pb were significantly higher in mackerel liver (p \ 0.05).While, in muscle, anchovy presents a higher content of Mn, Cu, Cr, Ni and Pb. A high level of cadmium was recorded in liver of the different species which can be attributed to an anthropogenic source (phosphate industry) and to natural sources (upwelling activities). The main concentration of toxic elements (Cd, Pb and Hg) recorded in the four edible muscles of pelagic fish species, under study, were below the established values by the European Commission Regulations and show that their effect on the consumers health can be considered as negligible.

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“…The results demonstrated that, whatever the species, elements show higher concentrations in liver than in muscle tissue (Tables 2, 3) as reported in other studies (Diop et al 2016).…”

Section: Metal Concentrations In Fish Organssupporting

confidence: 78%

Section: Metal Accumulation Patternscontrasting

confidence: 34%

Section: Metal Accumulation Patternsmentioning

confidence: 61%

Section: Metal Accumulation Patternsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Trace metal distribution in pelagic fish species from the north-west African coast (Morocco)

et al. 2018

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Tissue specific metal characterization of selected fish species in Pakistan

Ahmed

Taufiq

Liaquat

et al. 2016

Environ Monit Assess

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Concentration of various metals, i.e., zinc (Zn), copper (Cu), lead (Pb), nickel (Ni), iron (Fe), manganese (Mn), chromium (Cr), and silver (Ag), was evaluated in five indigenous fish species (namely, silver carp, common carp, mahseer, thela fish, and rainbow trout), by using atomic absorption spectrophotometer. It is proved from this study that, overall, mahseer and rainbow trout had high amount of zinc, whereas thela fish and silver carp had high concentration of copper, chromium, silver, nickel, and lead, while common carp had highest amount of iron contents. Furthermore, a tissue-specific discrimination among various fish species was observed, where higher metal concentrations were noticed in fish liver, with decreasing concentration in other organs like skin, gills, and finally the least contents in fish muscle. Multivariate data analysis showed not only a variation in heavy metals among the tissues but also discrimination among the selected fish species.

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Mercury concentrations in the coastal marine food web along the Senegalese coast

Diop

Amara

2016

Environ Sci Pollut Res

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This paper presents the results of seasonal (wet and dry seasons) and spatial (five sites) variation of mercury concentration in seven marine organisms representative for shallow Senegalese coastal waters and including species of commercial importance. Total mercury levels were recorded in the green algae (Ulva lactuca); the brown mussel (Perna perna); the Caramote prawn (Penaeus kerathurus); and in the liver and muscles of the following fish: Solea senegalensis, Mugil cephalus, Saratherondon melanotheron, and Sardinella aurita. The total selenium (Se) contents were determined only in the edible part of Perna perna, Penaeus kerathurus and in the muscles of Sardinella aurita and Solea senegalensis. Hg concentration in fish species was higher in liver compared to the muscle. Between species differences in Hg, concentrations were recorded with the highest concentration found in fish and the lowest in algae. The spatiotemporal study showed that there was no clear seasonal pattern in Hg concentrations in biota, but spatial differences existed with highest concentrations in sites located near important anthropogenic pressure. For shrimp, mussel, and the muscles of sardine and sole, Hg concentrations were below the health safety limits for human consumption as defined by the European Union. The Se/Hg molar ratio was always higher than one whatever the species or location suggesting a protection of Se against Hg potential adverse effect.

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Spatial and seasonal variations of trace elements concentrations in liver and muscle of round Sardinelle (Sardinella aurita) and Senegalese sole (Solea senegalensis) along the Senegalese coast

Cited by 20 publications

References 31 publications

Trace metal distribution in pelagic fish species from the north-west African coast (Morocco)

Trace metal distribution in pelagic fish species from the north-west African coast (Morocco)

Tissue specific metal characterization of selected fish species in Pakistan

Mercury concentrations in the coastal marine food web along the Senegalese coast

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