Metal and metallothionein content in tissues from wild and farmed Anguilla anguilla at commercial size

Ureña, Rocío; Perí, Silvia I.; Ramo, J. Del; Torreblanca, Amparo

doi:10.1016/j.envint.2006.10.007

Cited by 49 publications

(17 citation statements)

References 37 publications

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“…Our results accord with the results of study on MT content in eel (Anguilla anguilla) which indicated MT content in the order of kidney>liver>gills [28]. Hollis et al also reported that the greatest increase of MT occurred in kidney after rainbow trout (Oncorhynchus mykiss) had been exposed to 3 μgl −1 Cd over 30 days [24].…”

Section: Resultssupporting

confidence: 94%

Metallothionein as Potential Biomarker of Cadmium Exposure in Persian Sturgeon (Acipenser persicus)

Shariati

Sari

Mashinchian

et al. 2010

Biol Trace Elem Res

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Metallothionein (MT) concentration in gills, liver, and kidney tissues of Persian sturgeon (Acipenser persicus) were determined following exposure to sublethal levels of waterborne cadmium (Cd) (50, 400, and 1,000 μg l(-1)) after 1, 2, 4, and 14 days. The increases of MT from background levels were 4.6-, 3-, and 2.8-fold for kidney, liver, and gills, respectively. The results showed that MT level change in the kidney is time and concentration dependent. Also, cortisol measurement revealed elevation at the day 1 of exposure and followed by MT increase in the liver. Cd concentrations in the cytosol of experimental tissues were measured, and the results indicated that Cd levels in the cytosol of liver, kidney, and gills increased 240.71-, 32.05-, and 40.16-fold, respectively, 14 days after exposure to 1,000 μg l(-1) Cd. The accumulation of Cd in cytosol of tissues is in the order of liver > gills > kidney. Pearson correlation coefficients showed that the MT content in kidney is correlated with Cd concentration, the value of which is more than in liver and gills. Thus, kidney can be considered as a tissue indicator in A. persicus for waterborne Cd contamination.

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Section: Resultssupporting

confidence: 94%

Metallothionein as Potential Biomarker of Cadmium Exposure in Persian Sturgeon (Acipenser persicus)

Shariati

Sari

Mashinchian

et al. 2010

Biol Trace Elem Res

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“…This is important because muscle constitutes the greatest mass of the fish that is consumed. This result is in good agreement with observations carried out on several wild and cultured fish species (Canli and Atli 2003;Usero et al 2004;Linde et al 2004;Ureña et al 2007;Ciardullo et al 2008).…”

Section: Discussionsupporting

confidence: 94%

Heavy metal bioaccumulation and metallothionein content in tissues of the sea bream Sparus aurata from three different fish farming systems

Creti

Trinchella

Scudiero

2009

Environ Monit Assess

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The distribution and potential bioaccumulation of dietary and waterborne cadmium and lead in tissues of sea bream (Sparus aurata), a major aquaculture species, was studied in relation to three different fish farming systems. Metallothionein levels in fish tissues were also evaluated. Results demonstrate that metal concentrations in various tissues significantly vary among fish culture systems. Different tissues show different capacity for accumulating heavy metals. The content of both cadmium and lead is not strictly correlated with that of metallothionein. Indeed, the marked accumulation of both metals in liver, as well as the high lead content found in gills and kidney, are not accompanied by a concomitant accumulation of metallothioneins in these tissues. No correlation is present between heavy metals and metallothionein content in muscle tissue. The results also demonstrate that cadmium accumulates mainly via dietary food, whereas lead accumulation is not of food origin. Noteworthy is that the concentration of the two metals found in muscle in all instances is lower than the limits established by European Union legislation for fish destined for human consumption.

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“…Condition factors (CFs) were calculated by the ratio of weight/length which has been used to compare growth conditions of fish, while hepatosomatic index (HSI) is defined as the ratio of liver weight to body weight that provides an indication of the status of energy reserve in a fish. The fact that both factors are indicative of the overall fish health, this makes them good candidates to be considered in this study (Ureña et al 2007). Despite the fact that samples farmed in earthen ponds were smaller compared to other sites, there was no significant difference among the HSIs (P>0.05).…”

Section: Resultsmentioning

confidence: 95%

Evaluation of Metal Concentrations in Red Tilapia (Oreochromis spp) from Three Sampling Sites in Jelebu, Malaysia Using Principal Component Analysis

2010

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Concentration of V, Mn, Fe, Co, Cu, Zn, As, Se, Cd, and Pb in muscle, liver, and gill tissues of red tilapia (Oreochromis spp) sampled from three different aquaculture sites which include earthen pond, ex-tin mining pool, and concrete tank in Jelebu, Negeri Sembilan, were determined using microwave-assisted digestion-inductively coupled plasma-mass spectrometry. Accumulation patterns relating organs and elements, as well as origins and elements, were evaluated using multivariate statistics. With the aid of principal component analysis, it is possible to visualize the distribution pattern of metals in different organs as well as clustering tendencies of tilapia samples according to the production sites. In general, levels of V, Co, Fe, Cu, Zn, Se, and Cd in liver were higher than those in muscles and gills, whereas Mn and Pb were higher in gills while As in muscles. Results from principal component analysis revealed that there are similar pattern of metal distribution among organs regardless of the production sites. It is also suggested that Cu, As, and Pb are the best describers in characterizing the studied organs, where liver tissues are associated with high Cu, gills with high Pb, and muscles with high As. On the other hand, V, Co, and Pb are observed to be key discriminants for sample origins.

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Metal and metallothionein content in tissues from wild and farmed Anguilla anguilla at commercial size

Cited by 49 publications

References 37 publications

Metallothionein as Potential Biomarker of Cadmium Exposure in Persian Sturgeon (Acipenser persicus)

Metallothionein as Potential Biomarker of Cadmium Exposure in Persian Sturgeon (Acipenser persicus)

Heavy metal bioaccumulation and metallothionein content in tissues of the sea bream Sparus aurata from three different fish farming systems

Evaluation of Metal Concentrations in Red Tilapia (Oreochromis spp) from Three Sampling Sites in Jelebu, Malaysia Using Principal Component Analysis

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