Antennal Deformities of Chironomid Larvae and Their Use in Biomonitoring of Heavy Metal Pollutants in the River Damodar of West Bengal, India

Bhattacharyay, G.; Sadhu, A. K.; Mazumdar, Abhijit; Chaudhuri, P. K.

doi:10.1007/s10661-005-3963-8

Cited by 42 publications

(30 citation statements)

References 14 publications

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“…Since then midges and mosquito larvae have been employed for assessment of environmental contamination [55][56][57][58][59]. As mentioned in "Introduction" section, level of MT determined in animal blood and tissues is thought to be a marker of heavy metal stress.…”

Section: Resultsmentioning

confidence: 99%

Heavy Metal Contamination of Soil and Sediment in Zambia

2014

Heavy Metal Contamination of Water and Soil

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Among wide spectrum of biomolecules induced by various stress factors low molecular mass protein called metallothionein (MT) is suitable for assessment of the heavy metal environmental pollution. The aim of this work was to determine the metallothionein and total thiols content in larvae of freshwater midges (Chironomus riparius) sampled from laboratory exposure to cadmium(II) ions and from field studies using differential pulse voltammetry Brdicka reaction. Unique electrochemical instrument, stationary electrochemical analyser Autolab coupled with autosampler, was utilized for the analysis of the samples. The detection limit for MT was evaluated as 5 nM. The larvae exposed to two doses (50 ng/g or 50 µg/g) of cadmium(II) ions for fifteen days under laboratory controlled conditions were at the end of the exposure killed, homogenized and analysed. MT content in control samples was 1.2 µM, in larvae exposed to 50 ng Cd/g it was 2.0 µM and in larvae exposed to 50 µg Cd/g 2.9 µM. Moreover at field study chironomid larvae as well as sediment samples have been collected from eight field sites with different levels of pollution by heavy. The metals content (chromium, nickel, copper, zinc, arsenic, molybdenum, cadmium, tin and lead) in the sediment and or MT content in the chironomid larvae were determined by inductively coupled plasma mass spectrometry or Brdicka reaction, respectively. OPEN ACCESSSensors 2008, 8 4082

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Section: Resultsmentioning

confidence: 99%

Heavy Metal Contamination of Soil and Sediment in Zambia

2014

Heavy Metal Contamination of Water and Soil

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“…Hence deformities in the antennae provide excellent early warning signals for the detection of toxic pollutants in the environment (Warwick 1990). In some Chironomid species of the genera Chironomus, Kiefferulus, Stictochironomus and Procladius, the frequencies of antenna deformities were positively correlated to concentrations of Pb in the sediments of four stations (R 2 varied from 0.24 to 0.63; Bhattacharyay et al 2005).…”

Section: Chironomids (Diptera) a Group Important For Assessing Contamentioning

confidence: 99%

Chironomids (Diptera) and their salivary gland chromosomes as indicators of trace-metal genotoxicity

Michailova

Sella

Petrova

2012

Italian Journal of Zoology

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The long-term impact of pollution in freshwater aquatic environments can be assessed realistically only if the mutagenic effects of pollutants on organisms inhabiting aquatic biotopes are evaluated. To do this, the larvae of Chironomids (Diptera) can serve as suitable indicators of potential environmental genotoxicity. These larvae exhibit aberrations in their polytene chromosomes, which, when analyzed, indicate an early response to toxicity more efficiently than morphological analysis, up to now the usual technique. Chironomids have excellent salivary gland chromosomes with well-defined bands and permanent somatic pairing, where there are two important regions of active transcription-Balbiani rings (BRs) and Nucleolar organizers (NOR). We have described the responses of different Chironomid species in two situations: in the field and in the laboratory, where we performed Cr, Al, Pb and Cu trace-metal-exposure experiments with Chironomus riparius. In both situations, the genome response consisted in a statistically significant increase in somatic chromosome aberrations and decrease in BR and NOR activity to levels lower than those of larvae under standard conditions. The main chromosome aberrations consisted in inversions, amplifications, deletions and deficiencies. Deletions in the chromosome G in C. riparius transformed it into a pompon-like structure. Chromosome aberrations were not randomly distributed: they occurred mainly in sites with repetitive DNA elements that have a highly interspersed location in the C. riparius genome. Hence C. riparius is the species most likely to produce aberrations and can be used as a model for cost-effective monitoring of the early genomic response to trace metals and other stress agents.

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“…A systematic study on the level of pollutants in this river is lacking, though reports on the deformity of morphological structures of developing chironomids (Bhattacharya et al 2005(Bhattacharya et al , 2006 and the arsenic load (Acharya and Shah 2007) have been recorded. The aquatic insects (Pandit et al 1996) of this river form important biologically diverse entities; however, the impact of the industrial and domestic effluents are known at a very fragmentary level (Tiwary and Dhar 1994;Basu and Mitra 2002).…”

Section: Introductionmentioning

confidence: 99%

Water quality assessment near an industrial site of Damodar River, India

Chatterjee

Bhattacharjee

Chandra

2009

Environ Monit Assess

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An assessment on the water quality parameters coliform including the bacterial abundance from a point source of river Damodar (24 degrees 26(') N and 86 degrees 53(') E), West Bengal, India was carried out during the period of 2004-2007. The site received mining and industrial effluents from the collieries and industries. The water samples collected on a monthly basis revealed the presence of the coliform bacteria Escherichia coli and Streptococcus sp., between 2,600 and 20,000 colony-forming unit/100 ml throughout the study period with peak abundance during the months of September to December, the post-monsoon period. The relative abundance of the two bacterial species was found to be y(E. coli) = 1.41x (Streptococcus) - 8.07 and were positively correlated (r = + 0.868, df = 34). Principal component analysis revealed three factors to clarify for the observed variance of the environmental variables. The mean values of the physicochemical parameters of the river water at the sampling sites were consistently higher than the levels specified by WHO and other regulatory bodies and qualify as polluted water. The presence of the coliform bacteria in these water samples warrants for proper measure to reduce the pollution at the point source and proper remediation strategies to combat contamination in the domestic water usage from river Damodar from this site and downstream.

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Antennal Deformities of Chironomid Larvae and Their Use in Biomonitoring of Heavy Metal Pollutants in the River Damodar of West Bengal, India

Cited by 42 publications

References 14 publications

Heavy Metal Contamination of Soil and Sediment in Zambia

Heavy Metal Contamination of Soil and Sediment in Zambia

Chironomids (Diptera) and their salivary gland chromosomes as indicators of trace-metal genotoxicity

Water quality assessment near an industrial site of Damodar River, India

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