scholarly journals Heavy Metal Accumulation and the Genotoxicity in Barbel (Barbus barbus) as Indicators of the Danube River Pollution

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Karolina Sunjog ◽  
Zoran Gačić ◽  
Stoimir Kolarević ◽  
Željka Višnjić-Jeftić ◽  
Ivan Jarić ◽  
...  
Keyword(s):  
Metal Accumulation ◽  
River Pollution ◽  
Heavy Metal Accumulation ◽  
Danube River ◽  
Tail Moment ◽  
Alkaline Comet Assay ◽  
Negative Effects ◽  
Genotoxic Effects ◽  
The Danube River ◽  
Barbus Barbus

The aim of this study was to analyze 16 trace elements (Al, As, B, Ba, Cd, Co, Cr, Cu, Fe, Li, Mn, Mo, Ni, Pb, Sr, and Zn) in different barbel (Barbus barbus) tissues and to detect the presence of genotoxic effects in erythrocytes with the alkaline comet assay. Barbel specimens were collected in the Danube river near Belgrade, Serbia, where the discharge of untreated communal and industrial wastewaters is likely to produce negative effects on fish residing in this area. The highest concentrations of Sr, Mn, Fe, Ba, B, and Al were found in gills, Mo and Cu in liver, and As and Zn in gonads. Concentrations of Zn and Fe were above maximum acceptable concentrations (MACs) in a number of gonad, gill, and liver samples. Three-year-old barbel specimens had higher tail moment and Zn concentrations in gills (1.71 and 51.20 μg/g dw, resp.) than 5-year-old specimens (0.85 and 42.51 μg/g dw, resp.). Results indicate that the younger barbel specimens might be more suitable for the monitoring of environmental pollution.

scholarly journals Glutathione redox status in some tissues and the intestinal parasite Pomphorhynchus laevis (Acanthocephala) from barbel (Barbus barbus)(Pisces) from the Danube river

2007 ◽  
Vol 59 (4) ◽  
pp. P57-P58 ◽  
Author(s):  
Svetlana Despotovic ◽  
Branka Perendija ◽  
Tijana Kovacevic ◽  
Slavica Borkovic ◽  
S.Z. Pavlovic ◽  
...  
Keyword(s):  
Intestinal Parasite ◽  
Redox Status ◽  
Danube River ◽  
Pomphorhynchus Laevis ◽  
The Danube River ◽  
Barbus Barbus ◽  
Glutathione Redox

Is metal accumulation in Pomphorhynchus laevis dependent on parasite sex or infrapopulation size?

Parasitology ◽  
2010 ◽  
Vol 137 (8) ◽  
pp. 1239-1248 ◽  
Author(s):  
M. NACHEV ◽  
S. ZIMMERMANN ◽  
T. RIGAUD ◽  
B. SURES
Keyword(s):  
Inductively Coupled Plasma ◽  
Metal Accumulation ◽  
Infected Fish ◽  
Fish Host ◽  
Danube River ◽  
River Bank ◽  
Pomphorhynchus Laevis ◽  
Inductively Coupled ◽  
Barbus Barbus ◽  
Metal Monitoring

SUMMARYConcentrations of the elements As, Cd, Co, Cu, Fe, Mn, Mo, Ni, Pb, Sn, V, Zn were analysed by inductively coupled plasma mass spectrometry (ICP-MS) in the acanthocephalan Pomphorhynchus laevis and its fish host Barbus barbus. A total of 27 barbels were collected from the Danube River in autumn 2006 close to the town Kozloduy (685 river kilometer) on the Bulgarian river bank. Fish were divided into 3 groups. According to their P. laevis infrapopulation size hosts were considered as heavily infected (>100 worms per fish) and lightly infected (<20 worms per fish). The third group was used to compare heavy metal concentrations between male and female P. laevis. The 5 elements As, Cd, Cu, Pb and Zn were detected in significantly higher concentrations in parasites compared to host tissues (muscle, intestine, liver). According to the calculated mean bioconcentration factors, 3 more elements (Co, Mn, V) showed usually higher concentrations in P. laevis. Comparisons between heavily and lightly infected fish revealed significant differences only for V with higher concentrations for the heavily infected group. Concerning sex-specific metal accumulation V and Zn showed significant differences (V, at P<0·05; Zn, at P=0·05), with higher levels of both metals in females of P. laevis. Our results suggest that – for the metals analysed – the size of the parasite infrapopulation plays no role in the degree of metal accumulation. Similarly, parasite sex seems not to be a crucial factor for metal accumulation in the parasites. Thus, for metal monitoring purposes there is no need to take these aspects into account, which makes the use of parasites as bioindicators more applicable.

Hydrogeological modeling in Danube Valley using GIS techniques. Study case

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
Ioana Vizireanu ◽  
Camelia Slave
Keyword(s):  
Agricultural Production ◽  
Danube River ◽  
Negative Effects ◽  
Entire Surface ◽  
Secondary Salinization ◽  
Gis Model ◽  
The Danube River ◽  
Gis Technologies ◽  
Soil Irrigation ◽  
Study Case

<p>In hydrogeological and pedoclimatic conditions, specific to the Danube River, there is a danger of secondary salinization of soil excluded from the floods. The drought, with an increasing frequency, affects agricultural production in areas where the largest irrigation systems are found. These systems were built during 1960-1990, but they are dysfunctional and unused for 20 years.</p><p>The purpose of this study is to insure a model using GIS technologies, in order to reduce the negative effects of the drought and to propose redevelopment of irrigation. Such model is presented in a form of five thematic maps where the main morphometric parameters (hypsometry, slope, slope orientation), in quantitative terms, the types of soils and land use were analyzed for the entire surface of the villages Gostinu-Greaca-Arges, located in the Danube Floodplain. The GIS model provides important information for the investigated area and it is a useful tool for risk assessment and early-warning.</p><p>This study is based on observations from the maps interpretation of the studied area, but also from reports and studies published over the years.</p><p> </p><p>Keywords: The Danube River, drought, soil, irrigation.</p>

Common barbel (Barbus barbus) as a bioindicator of surface river sediment pollution with Cu and Zn in three rivers of the Danube River Basin in Serbia

2015 ◽  
Vol 23 (7) ◽  
pp. 6723-6734 ◽  
Author(s):  
Arian Morina ◽  
Filis Morina ◽  
Vesna Djikanović ◽  
Sladjana Spasić ◽  
Jasmina Krpo-Ćetković ◽  
...  
Keyword(s):  
River Basin ◽  
River Sediment ◽  
Danube River ◽  
Sediment Pollution ◽  
The Danube River ◽  
Barbus Barbus ◽  
Three Rivers ◽  
Danube River Basin ◽  
Cu And Zn

Metal Accumulation in Muscle and Liver of the Common Nase (Chondrostoma nasus) and Vimba Bream (Vimbavimba) from the Danube River, Serbia: Bioindicative Aspects

2019 ◽  
Vol 103 (2) ◽  
pp. 261-266 ◽  
Author(s):  
Srđan Subotić ◽  
Željka Višnjić-Jeftić ◽  
Vesna Đikanović ◽  
Slađana Spasić ◽  
Jasmina Krpo-Ćetković ◽  
...  
Keyword(s):  
Metal Accumulation ◽  
Danube River ◽  
The Danube River ◽  
Chondrostoma Nasus ◽  
The Common

scholarly journals Evaluation of toxic metal levels in edible tissues of three wild captured freshwater fishes

2014 ◽  
Vol 25 (1) ◽  
pp. 53-58
Author(s):  
Katya Peycheva ◽  
Lubomir Makedonski ◽  
Albena Merdzhanova ◽  
Mona Stancheva
Keyword(s):  
Heavy Metal ◽  
Fresh Water ◽  
Fish Species ◽  
Metal Accumulation ◽  
Heavy Metal Accumulation ◽  
Danube River ◽  
Fresh Water Fish ◽  
Edible Part ◽  
Fish Samples ◽  
Metal Levels

Abstract River ecosystems are vulnerable to heavy metal pollution. Fish samples are considered as one of the most indicative factors, in fresh water systems, for the estimation of trace metals pollution potential since they are the final chain of aquatic web. The objective of the present study is to evaluate the concentration of some toxic elements (As, Hg, Pb, Cd and Ni) in edible part of three wild fresh water fish species (zander (Sander lucioperca), wels catfish (Silurus glanis) and European carp (Cyprinus Carpio)) caught from Bulgarian part of Danube river collected during 2010. The Danube River is the European Union's longest and the continent's second longest river that passes through or touches the borders of ten countries. It has a great importance in regard to biodiversity, economics and transportation. The elements (As, Pb, Cd and Ni) were assayed using Perkin Elmer Zeeman 3030 electrothermal atomic absorption spectrometer with an HGA-600 atomizer. Determination of Hg was performed using Milestone Direct Mercury Analyzer DMA-80. The results were expressed as μg/g dry weight. The order of heavy metal accumulation in the edible part of zander is As>Hg>Pb> Ni> Cd while the other two fish species show a different metal accumulation Hg > As >Pb> Ni > Cd. In all heavy metals, the accumulation of mercuric and arsenic proportion was significantly high in all three fish types.

Mollusks of the Genus Corbicula in the Ukrainian Section of the Danube River

2011 ◽  
Vol 47 (3) ◽  
pp. 39-47 ◽  
Author(s):  
V. V. Makovskiy ◽  
A. V. Lyashenko
Keyword(s):  
Danube River ◽  
The Danube River
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