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Open AccessFeature PaperArticle

Aquatic Worm Assemblages along the Danube: A Homogenization Warning

1
Department for Hydroecology and Water Protection, Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142 Blvd, 11060 Belgrade, Serbia
2
Department of Hydrobiology, Institute of Zoology, Slovak Academy of Sciences, Dubravska cesta 9, 84506 Bratislava, Slovakia
3
Faculty of Biology, University of Belgrade, Studentski Trg 16, 11000 Belgrade, Serbia
4
Environmental Institute, Okruzna 784/42, 97241 Koš, Slovakia
5
Hungarian Academy of Sciences, Centre for Ecological Research/Danube Research Institute, 29 Karolina Str., 1113 Budapest, Hungary
*
Author to whom correspondence should be addressed.
Passed away.
Water 2020, 12(9), 2612; https://doi.org/10.3390/w12092612
Received: 20 July 2020 / Revised: 14 September 2020 / Accepted: 16 September 2020 / Published: 18 September 2020
In this study, we analyzed the impacts of different environmental conditions on aquatic worm communities along the Danube River, based on two longitudinal surveys, the Joint Danube Surveys 2 and 3 (JDS; 2007 and 2013). We identified the most important environmental factors (among analyzed groups) that shape worm communities: hydromorphlogical alterations, flow velocity and substrate (HYMO group), dissolved oxygen, nitrates and nitrites (physico-chemical parameters), zinc and nickel (metals), monobutyltin cation, benzo(b) fluoranthene and benzo(k)fluoranthene, polychlorinated biphenyls PCB 77 and PCB 118 (selected chemical determinants—organotin compounds, Polycyclic aromatic hydrocarbons—PAHs and PCBs). A homogenization of species composition of Oligochaeta assemblages along the Danube was confirmed. As one of main factors related to biotic homogenization, hydromorphological alterations represented by similar changes in flow velocity and substrates along Danube’s course could be singled out. Our results indicate that Oligochaeta could be used for the identification of the level of hydromorphological degradation in large rivers (homogenization), rather than for stressors classified as nutrient and organic pollutants. Our results provide additional evidence in risk assessment of the environment, contributing in water management and monitoring of the ecological status as proposed by the Water Framework Directive. View Full-Text
Keywords: Oligochaeta; large lowland rivers; longitudinal distribution; multiple stressors; pollution Oligochaeta; large lowland rivers; longitudinal distribution; multiple stressors; pollution
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MDPI and ACS Style

Atanacković, A.; Šporka, F.; Marković, V.; Slobodnik, J.; Zorić, K.; Csányi, B.; Paunović, M. Aquatic Worm Assemblages along the Danube: A Homogenization Warning. Water 2020, 12, 2612. https://doi.org/10.3390/w12092612

AMA Style

Atanacković A, Šporka F, Marković V, Slobodnik J, Zorić K, Csányi B, Paunović M. Aquatic Worm Assemblages along the Danube: A Homogenization Warning. Water. 2020; 12(9):2612. https://doi.org/10.3390/w12092612

Chicago/Turabian Style

Atanacković, Ana; Šporka, Ferdinand; Marković, Vanja; Slobodnik, Jaroslav; Zorić, Katarina; Csányi, Bela; Paunović, Momir. 2020. "Aquatic Worm Assemblages along the Danube: A Homogenization Warning" Water 12, no. 9: 2612. https://doi.org/10.3390/w12092612

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