The relation between chironomid (Diptera: Chironomidae) assemblages and environmental variables: The Kolubara River case study

Authors

  • Nataša Z. Popović Institute for Biological Research “Siniša Stanković”, University of Belgrade, Bulevar Despota Stefana 142, Belgrade
  • Jelena A. Đuknić Institute for Biological Research “Siniša Stanković”, University of Belgrade, Bulevar Despota Stefana 142, Belgrade
  • Jelena Ž. Čanak Atlagić Institute for Biological Research “Siniša Stanković”, University of Belgrade, Bulevar Despota Stefana 142, Belgrade
  • Maja J. Raković Institute for Biological Research “Siniša Stanković”, University of Belgrade, Bulevar Despota Stefana 142, Belgrade
  • Bojana P. Tubić Institute for Biological Research “Siniša Stanković”, University of Belgrade, Bulevar Despota Stefana 142, Belgrade
  • Stefan P. Anđus Institute for Biological Research “Siniša Stanković”, University of Belgrade, Bulevar Despota Stefana 142, Belgrade
  • Momir M. Paunović Institute for Biological Research “Siniša Stanković”, University of Belgrade, Bulevar Despota Stefana 142, Belgrade

Abstract

Chironomid larvae respond rapidly to environmental changes in aquatic ecosystems, with different species possessing different degrees of tolerance. Consequently, this group is considered an effective and reliable indicator of the ecological status. In this study, the relation between larval chironomid assemblages and environmental variables was examined at two sites on the Kolubara River. A nonparametric Mann-Whitney U test did not confirm significant seasonal differences between samples. Correspondence analysis indicated that the study sites are distinguished by their community composition. Based on forward selection analyses, 5 out of 28 analyzed water parameters and 3 out of 22 sediment parameters displayed the highest levels of correlation with chironomid assemblages. Forward selection analysis revealed that inorganic pollutants in the sediment (mercury, nickel and cadmium) exerted the greatest influence on the community. Results of canonical correspondence analysis indicated that the sediment characteristics have a more significant impact on chironomid communities than the analyzed water parameters. Our study confirmed that chironomids and sediment analyzes should be obligatorily included in the monitoring of ecological status, since chironomids are often a dominant component of benthic macroinvertebrate assemblages in freshwater ecosystems, with many species inhabiting the sediment with a proclivity for intake of toxic and persistent pollutants.

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Published

2016-06-27

How to Cite

1.
Popović NZ, Đuknić JA, Čanak Atlagić J Ž., Raković MJ, Tubić BP, Anđus SP, Paunović MM. The relation between chironomid (Diptera: Chironomidae) assemblages and environmental variables: The Kolubara River case study. Arch Biol Sci [Internet]. 2016Jun.27 [cited 2024Apr.22];68(2):405-1. Available from: https://www.serbiosoc.org.rs/arch/index.php/abs/article/view/783

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