Monitoring of aquatic mosses and sediments: a case study in contaminated rivers, Bulgaria

Gecheva, Gana; Yurukova, Lilyana; Cesa, Mattia; Cheshmedjiev, Svetoslav

doi:10.1080/11263504.2013.857736

Cited by 13 publications

(10 citation statements)

References 21 publications

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“…Preliminary trials Exposure times reported in the literature usually range between 1 and 6 weeks (Gecheva and Yurukova 2013;Mersch and Claveri 1998). Two preliminary trials were carried out on June 2012 and January 2013, respectively, with the aim of testing uptake capacity in two different seasons of the year (early summer and winter) for selecting a good compromise between duration of exposure and final concentration in the moss:…”

Section: Experimental Designmentioning

confidence: 99%

“…Even if this approach is obtaining increasing attention and is being consolidated throughout Europe, the methods for using and analysing bryophytes are often different (Gecheva and Yurukova 2013). The widespread diffusion of bioaccumulation techniques strongly depends on the reliability of the method, which enables to reach similar results under similar conditions.…”

Section: Introductionmentioning

confidence: 97%

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Development of a standard protocol for monitoring trace elements in continental waters with moss bags: inter- and intraspecific differences

Cesa

Bertossi

Cherubini

et al. 2015

Environ Sci Pollut Res

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This paper is a contribution for validating a standard method for trace element monitoring based on transplants and analysis of aquatic bryophytes, in the framework of the EC Directive 2000/60. It presents the results of an experiment carried out to assess significant differences in the amount and variability of As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn in three moss species (Cinclidotus aquaticus, Fontinalis antipyretica, Platyhypnidium riparioides) and two different parts of the moss (whole plant vs apical tips). Mosses were caged in bags made of a plastic net and transplanted for 2 weeks to an irrigation canal impacted by a waste water treatment plant. Trace element concentrations were measured by inductively coupled plasma optical emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS) before and after exposure to the experimental and control sites in five samples. Enrichment factors >>2 were found for Cu, Ni, Mn, Pb and Zn in all moss species, lower in C. aquaticus, intermediate in F. antipyretica and higher in P. riparioides (the species we recommend to use). The analysis of apical tips after exposure instead of the whole plant led to (I) lower concentrations of As, Co, Cr, Fe and Zn in C. aquaticus (-7 to -30%) and of Fe and Pb (-13, -18%) in P. riparioides, (II) higher concentrations of Cu, Ni and Zn (+14 to +18%) in P. riparioides, while (III) no significant difference (p > 0.05) in F. antipyretica. Data variability after exposure was generally lower in apical tips, especially in C. aquaticus and in F. antipyretica, less in P. riparioides. In the aim of standardizing the moss-bag technique, the analysis of apical tips is recommended.

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Section: Experimental Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Development of a standard protocol for monitoring trace elements in continental waters with moss bags: inter- and intraspecific differences

Cesa

Bertossi

Cherubini

et al. 2015

Environ Sci Pollut Res

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“…Industrial effluents (loaded with As, Cd, Cu, Ni, Pb, Zn, etc.) have been continually released into the major north tributaries of the Topolnitsa River and the Zlatishka and Pirdopska rivers, which are also loaded with untreated domestic effluents and agricultural runoff (Gecheva et al 2013). Consequently, Topolnitsa Reservoir serves as the final receiver for all the different contaminants in the river waters.…”

Section: Introductionmentioning

confidence: 99%

Metal effects on histological and biochemical parameters of common rudd (Scardinius erythrophthalmus L.)

Georgieva

Stoyanova

Velcheva

et al. 2014

Archives of Polish Fisheries

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Fisheries Institute in Olsztyn, PolandCitation: Georgieva E., Stoyanova S., Velcheva I., Vasileva T., Bivolarski V., Iliev I., Yancheva V. 2014 -Metal effects on histological and biochemical parameters of common rudd (Scardinius erythrophthalmus L.) -Arch. Abstract. The present study aimed to evaluate the current contamination status of Topolnitsa Reservoir, which is located in a region with intensive copper mining. The reservoir has been continually contaminated with metals over the last few decades. As, Cd, Cu, Ni, Pb, and Zn concentrations were measured in surface water samples and in the liver of common rudd, Scardinius erythrophthalmus (L.), in three different seasons: spring, summer, and autumn. The morphological structure of the fish liver was examined and the hepatic LDH, ALAT, and ASAT activities were measured. In general, metal concentrations in the water varied, but As and Cu were present in all three seasons at levels higher than the maximum permissible levels set by law. The metal concentrations in the fish liver were significantly higher than in the water. Histological alterations were classified as degenerative changes (granular, vacuolar, hydropic, and fatty degeneration), necrotic changes (necrobiosis) -karyopyknosis, karryorehsis, and karyolyzis, and necrosis)); and changes in blood vessels (hyperemia in sinusoids and major blood vessels). Higher LDH, ALAT, and ASAT activities in fish livers were measured in comparison to reference fish. In addition, the ALAT activity in the livers of S. erythrophthalmus from Topolnitsa Reservoir was significantly higher in the summer. Overall, it can be concluded that the metal-contaminated waters of Topolnitsa Reservoir lead to negative changes in the common rudd tissues at the cellular level including impaired structure and enhanced enzymatic activity in the fish liver.

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“…Even though these circumstances call for a full investigation and monitoring, no data have been published over the last few decades on metal levels and their effects on fish from this artificial lake. Gecheva et al (20) recently provided information on metal levels in water and sediment samples along the Topolnista River basin. However, their results cannot be used as reference, as we investigate still water and their study a flowing water.…”

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confidence: 99%

Metal bioaccumulation in common carp and rudd from the Topolnitsa reservoir, Bulgaria

Yancheva

Stoyanova

Velcheva

et al. 2014

Archives of Industrial Hygiene and Toxicology

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Concentrations of arsenic (As), cadmium (Cd), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn) were determined in water samples and five fish organs (gills, liver, kidney, spleen, and muscle) of common carp (Cyprinus carpio L.) and common rudd (Scardinius erythrophthalmus L.) from the Topolnitsa reservoir (Bulgaria) in three seasons (spring, summer, and autumn). This water ecosystem is located in a copper mining and metallurgical region. Water metal concentrations were significantly higher in the summer than in the spring (p<0.05). Moreover, As, Cd, Cu, and Zn concentrations were higher than the national limits. Qualitative factors "element" and "fish organ" had a stronger influence on metal bioaccumulation than the factors "season" and "fish species". In fish, the highest metal levels were detected in the liver, spleen, kidney and gills, and the lowest in the dorsal muscle. Tissue levels were higher in the summer, but in general they were similar between the two Cyprinid fish. Fish muscles had the lowest metal levels at all times, but As and Pb exceeded the national and international standards. Therefore, we would not recommend fish consumption from Topolnitsa, as continuous metal contamination of the reservoir may seem to present human health risk.

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Monitoring of aquatic mosses and sediments: a case study in contaminated rivers, Bulgaria

Cited by 13 publications

References 21 publications

Development of a standard protocol for monitoring trace elements in continental waters with moss bags: inter- and intraspecific differences

Development of a standard protocol for monitoring trace elements in continental waters with moss bags: inter- and intraspecific differences

Metal effects on histological and biochemical parameters of common rudd (Scardinius erythrophthalmus L.)

Metal bioaccumulation in common carp and rudd from the Topolnitsa reservoir, Bulgaria

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