Abstract
Studies of the Slovakian Danube have indicated profound changes in the structures of several invertebrate assemblages in the section of the river bypassed by the Gabčíkovo hydroelectric project in 1992 and in adjacent floodplain water bodies. The present study investigates the relationship between hydrological connectivity and species diversity in the old main channel and adjacent left-bank water bodies, using resident cladocerans as indicators of the ecological integrity of the river-floodplain system. The work aimed to quantify cladoceran habitat preferences using habitat values (HV) and indication weights (IW) calculated from data accumulated during long-term monitoring of planktonic communities of the Danube floodplain (1,840.5–1,804 rkm) and supplemented with data from the literature. Although not listed as an indicator group in the European Union Water Framework Directive, cladocerans are shown to be highly apposite in the ecological assessment of river-floodplain systems. Of 71 recorded cladoceran species, 19 taxa showed a preference for eupotamal habitats, 24 species preferred eupotamal B/parapotamal waters, and 28 cladocerans were found to prefer the plesiopotamal/paleopotamal habitat type. Identified habitat types follow a gradient of hydrological connectivity with the main river channel, ranging from the eupotamal to more or less isolated floodplain water bodies. A secondary aim was to use the calculated values to assess the ecological integrity of the river-floodplain system. The key element of this procedure is the calculation of the Floodplain Index (FI) (Chovanec et al. Large Rivers, 15(1–4), 169–185 2005) from the summation of the habitat values and indication weights of all species present at the sampling sites. Calculated index values indicate the extent of disruption to lateral connectivity in the floodplain area.
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References
Amoros, C., & Roux, A. L. (1988). Interaction between water bodies within the floodplains of large rivers: function and development of connectivity. Münstersche Geographische Arbeiten, 29, 125–130.
Amoros, C., Richardot-Coulet, M., & Pautou, G. (1987). Les ‘ensembles fonctionnels’: des entités écologiques qui traduisent l’évolution de l’hydrosystème en intégrant la géomorphologie et l’antropisation (exemple du Haut-Rhône français). Revue de Géographie de Lyon, 57, 49–62.
Bothár, A. (1988). Results of long-term zooplankton investigations in the River Danube, Hungary. Verhandlung Internationale Vereinigung Limnologie, 23, 1340–1343.
Bothár, A. (1994). Qualitative und quantitative Plankton Untersuchungen in der Donau bei Göd/Ungarn (1969 Strom km) II. Zooplankton, In 30. Arbeitstagung der IAD (pp. 41–44), Dübendorf, Schweiz.
Bothár, A., & Ráth, B. (1994). Abundance dynamics of crustaceans in different littoral biotopes of the “Szigetköz” side arm system, River Danube, Hungary. Verhandlungen des Internationalen Verein Limnologie, 25, 1684–1687.
Brunke, M., Hoehn, E., & Gonser, T. (2003). Patchiness of river-groundwater interactions within two floodplain landscapes and diversity of aquatic invertebrate communities. Ecosystems, 6, 707–722.
CEC (1992). Commission of the European Community, Czech and Slovak Federative Republic, Republic of Hungary 1992. Working Group of Independent Experts on Variant C of the Gabčíkovo-Nagymaros project, Working Group Report, Budapest, Nov. 23, 1992.
Chengalath, R. (1982). A faunistic and ecological survey of the littoral Cladocera of Canada. Canadian Journal of Zoology, 60(11), 2668–2682.
Chovanec, A., & Waringer, J. (2001). Ecological integrity of river-floodplain system-assessment by dragonfly surveys (Insecta: Odonata). Regulated Rivers: Research & Management, 17, 493–507.
Chovanec, A., Waringer, J., Raab, R., & Laister, G. (2004). Lateral connectivity of a fragment large river system: assessment on a macroscale by dragonfly surveys (Insecta: Odonata). Aquatic Conservation: Marine and Freshwater Ecosystems, 14(2), 163–178.
Chovanec, A., Waringer, J., Straif, M., Graf, W., Reckendorfer, W., Waringer–Löschenkohl, A., et al. (2005). The Floodplain Index—a new approach for assessing the ecological status of river/floodplain system according to the EU Water Framework Directive. Large Rivers, 15(1–4), 169–185.
Dumont, H. J., & Negrea, S. (1996). A conspectus of the Cladocera of the subterranean waters of the word. Hydrobiologia, 325, 1–30.
Ertl, M. (1965). Die Cladoceren des Tschechoslowakischen Abschnittes der Donau. Acta Societatis Zoologicae Bohemoslovenicae, 29(4), 392–397.
Findlay, S. E. G., Kiviat, E., Nieder, W. C., & Blair, E. A. (2002). Functional assessment of a reference wetland set as a tool for science, management and restoration. Aquatic Sciences, 64, 107–117.
Furse, M., Hering, D., Moog, O., Verdonschot, P., Johnson, R. K., Brabec, K., et al. (2006). The STAR project: context, objectives and approaches. Hydrobiologia, 566, 3–29.
Gulyás, P. (1994a). Veränderungen des Rotatoria- und Crustacea-Planktons an der Donaustrecke zwischen Rajka und Komárom infolge der in der Slowakei stattgefundenen Umleitung des Stromes. In 30. Arbeitstagung der IAD, Zuoz/Schweiz (pp. 49–52), Wissenschaftliche Kurzreferate.
Gulyás, P. (1994b). Studies on Rotatoria and Crustacea in the various water-bodies of Szigetköz. Limnologie Aktuelle, 2, 63–78.
Holčík, J., Bastl, I., Ertl, M., & Vranovský, M. (1981). Hydrobiology and ichthyology of the Czechoslovak Danube in relation to predicted changes after the construction of the Gabčíkovo-Nagymaros river barrage system. Works of the Institute of Fishery Research and Hydrobiology, 3, 19–158.
Hudec, I. (2010). Fauna Slovenska III—Anomopoda, Ctenopoda, Haplopoda, Onychopoda (Crustacea: Branchiopoda) VEDA, Bratislava, 496 pp.
Illyová, M. (1996). Cladoceran taxocoenoses in the territory affected by the Gabčíkovo barrage system. Biologia (Bratislava), 51(5), 501–508.
Illyová, M. (1998). Planktonic crustaceans (Crustacea) in the littoral zone of the Danube inland delta (r km 1841–1804). Folia Faunistica Slovaca, 3(4), 23–30.
Illyová, M., & Némethová, D. (2002). Littoral cladoceran and copepod (Crustacea) fauna in the Danube and Morava river floodplains. Biologia (Bratislava), 57(2), 171–180.
Illyová, M., & Némethová, D. (2005). Long-term changes in cladoceran assemblage in the Danube floodplain area (Slovak–Hungarian stretch). Limnologica, 35, 274–282.
Junk, W.F., Bayley, P.B., & Sparks, R.E. (1989). The flood pulse concept in the river-floodplain system. In D.P. Dodge (Ed.), Proceedings of the International large river symposium (pp. 110–127). Can. Spec. Publ. Fish. Aquat. Sci., 106.
Kattel, G. R. (2011). Can we improve management practice of floodplain lakes using cladoceran zooplankton? River Research and Applications, 28(8), 1113–1120.
Kiss, A. (2004). Long-term changes of Crustacean (Cladocera, Ostracoda, Copepoda) assemblages in Szigetköz floodplain area (Hungary) 1991–2002. International Association for Danube Research, 35, 2–7.
Lehotský, M. (2004). River Morphology Hierarchical Classification (RMHC). Acta Universitatis Carolinae Geographica, 1, 33–45.
Lisický, M., & Mucha, I. (Eds.). (2003). Optimalization of the water regime in the Danube river branch system in the stretch Dobrohošť—Sap from the viewpoint of natural environment. Bratislava: DC: DC: Comenius University. http://www.gabcikovo.gov.sk/.
Mucha, I. (Ed.). (1995). Gabčíkovo part of the hydroelectric power project environmental impact review (evaluation based on two year monitoring). Bratislava: DC: Comenius University. http://www.gabcikovo.gov.sk/.
Mucha, I. (Ed.). (1999). Gabčíkovo part of the hydroelectric power project environmental impact review (evaluation based on six year monitoring). Bratislava: DC: Ground Water Consulting. http://www.gabcikovo.gov.sk/.
Naidenow, W. (1998). Das Zooplankton der Donau. In: E. Kusel-Fetzmann, W. Naidenow, B. Russev (Eds.), Plankton und Benthos der Donau, Ergebnisse der Donau-Forschung, Wien, Band 4: 163–248.
Oťaheľová, H., Valachovič, M., & Hrivnák, R. (2007). The impact of environmental factors on the distribution pattern of aquatic plants along the Danube River Corridor (Slovakia). Limnologica, 37(4), 290–302.
Pringle, C. M., Freeman, M. C., & Freeman, B. J. (2000). Regional effects of hydrologic alterations on riverine macrobiota in the new world: tropical-temperate comparisons. BioScience, 50(9), 807–823.
Rinderhagen, M., Ritterhoff, J., & Zauke, G. P. (2000). Crustaceans as bioindicators. In A. Gerhardt (Ed.), Biomonitoring of polluted water—reviews on actual topics (pp. 161–194). Uetikon-Zürich: Trans Tech.
Roux, A. L. (Ed.). (1982). Cartographie polytématique appliqué à la gestion écologique des eaux. Paris: Édition du CNRS. 113pp.
Schiemer, F., Keckeis, H., Reckendorfer, W., & Winkler, G. (2001). The ‘inshore retention concept’ and its significance for large rivers. Large Rivers, 12(1–2), 509–516.
Sládeček, V. (1964). Zur Ermittlung des Indikations-Gewichtes in der biologischen Gewässeruntersuchung. Archiv für Hydrobiologie, 60, 241–243.
Štifter, P. (1991). A review of the genus Ilyocryptus (Crustacea, Anomopoda) from Europe. Hydrobiologia, 225, 1–8.
Thomaz, S. M., Bini, L. M., & Bozelli, R. L. (2007). Floods increase similarity among aquatic habitats in river-floodplain systems. Hydrobiologia, 579, 1–13.
Tockner, K., Schiemer, F., & Ward, J. W. (1998). Conservation by restoration: the management concept for a river-floodplain system on the Danube River in Austria. Aquatic Conservation: Marine and Freshwater Ecosystems, 8(1), 71–86.
Vranovský, M. (1965). The knowledge of the littoral zooplankton of river oxbows. Thesis, Bratislava, 153pp., 57 Tabs, 34 Figs.
Vranovský, M. (1974). Zur Kenntnis der Verteilung, Biomasse und Drift des Zooplankton im tschechoslowakisch-ungarischen Donauabschnitt. Archiv für Hydrobiologie, 44, 360–363.
Vranovský, M. (1981). The planktonic Crustacea of Číčovské rameno dead arm. Spravodaj oblastného podunajského Múzea v Komárne, 3, 65–90.
Vranovský, M. (1985). Zooplankton of two side arms of the Danube at Baka (1820,5-1822,5 river km). Works of the Institute of Fishery Research and Hydrobiology, 5, 47–100.
Vranovský, M. (1997). Impact of the Gabčíkovo hydropower plant operation on planktonic copepods assemblages in the River Danube and its floodplain downstream of Bratislava. Hydrobiologia, 347, 41–49.
Ward, J. V., & Stanford, J. A. (1995). Ecological connectivity in alluvial river ecosystems and its disruption by flow regulation. Regulated Rivers: Research & Management, 11(1), 105–119.
Ward, J. V., Tockner, K., & Schiemer, F. (1999). Biodiversity of floodplain river ecosystems: ecotones and connectivity. Regulated Rivers: Research & Management, 15(1–3), 125–139.
Ward, J. V., Tockner, K., Arscott, D. B., & Claret, C. (2002). Riverine landscape diversity. Freshwater Biology, 47(4), 517–539.
Waringer, J. & Graf, W. (2002). Trichoptera communities as a tool for assessing the ecological integrity of Danubian floodplains in Lower Austria. In W. Mey (Ed.), Proc. 10th Int. Symp. Trich. (pp. 617–623). Nova Supplementa Entomologica.
Waringer, J., Chovanec, A., Straif, M., Graf, W., Reckendorfer, W., Waringer-Löschenkohl, A., et al. (2005). The Floodplain Index—habitat values and indication weights for molluscs, dragonflies, caddisflies, amphibians and fish from Austrian Danube floodplain waterbodies. Lauterbornia, 54, 177–186.
Wright, J. F., Furse, M. T., & Armitage, P. D. (1993). RIVPACS—a technique for evaluating the biological quality of rivers in the U.K. European Water Pollut Control, 3(4), 15–25.
Acknowledgments
The study was supported by the project VEGA 2/0113/13 and ITMS: 26240220049. The authors thank Dr. Amy-Jane Beer (UK) for the English correction and the valuable suggestion. We also thank our two anonymous reviewers for their valuable criticism, which markedly contributed to the improvement of this manuscript.
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Illyová, M., Matečný, I. Ecological validity of river-floodplain system assessment by planktonic crustacean survey (Branchiata: Branchiopoda). Environ Monit Assess 186, 4195–4208 (2014). https://doi.org/10.1007/s10661-014-3690-0
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DOI: https://doi.org/10.1007/s10661-014-3690-0