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Perch and its parasites as heavy metal biomonitors in a freshwater environment: the case study of the Ružín water reservoir, Slovakia.

Brázová T, Torres J, Eira C, Hanzelová V, Miklisová D, Salamún P - Sensors (Basel) (2012)

Bottom Line: Zinc was found to be the dominant element and its antagonistic interaction with copper was confirmed.Acanthocephalans, however, seem to be superior for heavy metal monitoring, also demonstrated under experimental conditions.Present results also indicate the decreasing heavy metal burden of the reservoir and its gradual recovery in the course of time.

View Article: PubMed Central - PubMed

Affiliation: Institute of Parasitology, Slovak Academy of Sciences, Košice, Slovakia. barciova@saske.sk

ABSTRACT
Heavy metal concentrations were determined in 43 perches (Perca fluviatilis) and in two of its most common parasites, the acanthocephalan Acanthocephalus lucii and the cestode Proteocephalus percae, collected in the period 2009-2010 from Ružín, a seriously polluted water reservoir in Slovakia. Samples of muscle, liver, kidney, brain, male and female reproductive organs and adipose tissue of fish and both parasites were analyzed for As, Cd, Cr, Cu, Hg, Mn, Ni, Pb and Zn, by ICP-MS. Mean concentrations of individual heavy metals in all fish samples decreased in the order zinc > copper > manganese > mercury > arsenic > chromium > cadmium > nickel > lead. Zinc was found to be the dominant element and its antagonistic interaction with copper was confirmed. The kidney was a key target organ receiving the highest mean concentrations of all analyzed metals, but some metals showed specific affinity for particular tissues. In terms of human health, concentration of Hg in fish muscle, which exceeded more than two-times its maximum level admitted in foodstuffs in European countries, is of great importance and should be taken into account. Bioaccumulation factors (C([parasite])/C([fish tissue])) calculated for all elements indicated much higher detection skills of A. lucii and P. percae parasites than fish organs and hence, present results allow proposing both parasite models as useful tools to monitor aquatic environmental quality. Acanthocephalans, however, seem to be superior for heavy metal monitoring, also demonstrated under experimental conditions. Present results also indicate the decreasing heavy metal burden of the reservoir and its gradual recovery in the course of time.

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The Ružín water reservoir with indication of the sampling site (★) located near Jaklovce village and the mouth of the Hnilec River into the reservoir.
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f1-sensors-12-03068: The Ružín water reservoir with indication of the sampling site (★) located near Jaklovce village and the mouth of the Hnilec River into the reservoir.

Mentions: The Ružín water reservoir, with an area of 3.9 km2 and a water volume of 59 million m3 is located in eastern Slovakia (48°40′N, 20°53′E) (Figure 1). It was created by damming the Hornád River in 1967 (Ružín I) and 1972 (Ružín II). Ružín receives waters from the Hornád and Hnilec Rivers, which drain the Spiš-Gemer Rudohorie Mts. [21].


Perch and its parasites as heavy metal biomonitors in a freshwater environment: the case study of the Ružín water reservoir, Slovakia.

Brázová T, Torres J, Eira C, Hanzelová V, Miklisová D, Salamún P - Sensors (Basel) (2012)

The Ružín water reservoir with indication of the sampling site (★) located near Jaklovce village and the mouth of the Hnilec River into the reservoir.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3376578&req=5

f1-sensors-12-03068: The Ružín water reservoir with indication of the sampling site (★) located near Jaklovce village and the mouth of the Hnilec River into the reservoir.
Mentions: The Ružín water reservoir, with an area of 3.9 km2 and a water volume of 59 million m3 is located in eastern Slovakia (48°40′N, 20°53′E) (Figure 1). It was created by damming the Hornád River in 1967 (Ružín I) and 1972 (Ružín II). Ružín receives waters from the Hornád and Hnilec Rivers, which drain the Spiš-Gemer Rudohorie Mts. [21].

Bottom Line: Zinc was found to be the dominant element and its antagonistic interaction with copper was confirmed.Acanthocephalans, however, seem to be superior for heavy metal monitoring, also demonstrated under experimental conditions.Present results also indicate the decreasing heavy metal burden of the reservoir and its gradual recovery in the course of time.

View Article: PubMed Central - PubMed

Affiliation: Institute of Parasitology, Slovak Academy of Sciences, Košice, Slovakia. barciova@saske.sk

ABSTRACT
Heavy metal concentrations were determined in 43 perches (Perca fluviatilis) and in two of its most common parasites, the acanthocephalan Acanthocephalus lucii and the cestode Proteocephalus percae, collected in the period 2009-2010 from Ružín, a seriously polluted water reservoir in Slovakia. Samples of muscle, liver, kidney, brain, male and female reproductive organs and adipose tissue of fish and both parasites were analyzed for As, Cd, Cr, Cu, Hg, Mn, Ni, Pb and Zn, by ICP-MS. Mean concentrations of individual heavy metals in all fish samples decreased in the order zinc > copper > manganese > mercury > arsenic > chromium > cadmium > nickel > lead. Zinc was found to be the dominant element and its antagonistic interaction with copper was confirmed. The kidney was a key target organ receiving the highest mean concentrations of all analyzed metals, but some metals showed specific affinity for particular tissues. In terms of human health, concentration of Hg in fish muscle, which exceeded more than two-times its maximum level admitted in foodstuffs in European countries, is of great importance and should be taken into account. Bioaccumulation factors (C([parasite])/C([fish tissue])) calculated for all elements indicated much higher detection skills of A. lucii and P. percae parasites than fish organs and hence, present results allow proposing both parasite models as useful tools to monitor aquatic environmental quality. Acanthocephalans, however, seem to be superior for heavy metal monitoring, also demonstrated under experimental conditions. Present results also indicate the decreasing heavy metal burden of the reservoir and its gradual recovery in the course of time.

Show MeSH