2021
DOI: 10.3390/w13070918
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Distribution of the Macrophyte Communities in the Danube Reflects River Serial Discontinuity

Abstract: The Danube is the second-longest river in Europe that is subjected to various man-made alterations, including those related to hydro-power plants. We surveyed and analyzed the presence and abundance of macrophytes in the main channel from 2582 river kilometers (rkm) to 171 rkm. We also assessed selected habitat parameters in the sampled river stretches. Sixty-eight different plant species were recorded along the entire course. Among neophytes, we found Elodea nuttallii, E. canadensis, Vallisneriaspiralis and A… Show more

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Cited by 9 publications
(5 citation statements)
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“…500 m intervals. A similar approach, but with 1000 m stretches, was used in the macrophyte survey of the Danube River [48]. Macrophyte surveys were performed from the bank of the stream, by wading in the stream or from a boat, using a rake with hooks.…”
Section: Macrophyte Data Setmentioning
confidence: 99%
“…500 m intervals. A similar approach, but with 1000 m stretches, was used in the macrophyte survey of the Danube River [48]. Macrophyte surveys were performed from the bank of the stream, by wading in the stream or from a boat, using a rake with hooks.…”
Section: Macrophyte Data Setmentioning
confidence: 99%
“…Waterlogged or flooded soil can become an inhospitable environment, which excludes the majority of species, while in the remaining species, it triggers the expression of various traits and mechanisms that enable survival despite oxygen shortage in the root zone. In addition, moving water masses as waves or current present a physical factor preventing successful colonization of certain communities [7,14]. Thus, when various factors shaping the plant communities are assessed [6] according to their importance, a hydrological regime often overrides all other environmental factors, also altering the pattern of regionality, which is generally accepted in biogeography [7].…”
Section: Discussionmentioning
confidence: 99%
“…In addition, moving water masses as waves or current present a physical factor preventing successful colonization of certain communities [7,14]. Thus, when various factors shaping the plant communities are assessed [6] according to their importance, a hydrological regime often overrides all other environmental factors, also altering the pattern of regionality, which is generally accepted in biogeography [7].…”
Section: Discussionmentioning
confidence: 99%
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“…Higher plants (11-28% cover) are mostly restricted to impounded sections, and in the lower Danube sections, primarily submerged-floating and free-floating plants were found due to lower transparency and flow velocity (Sommerwerk et al 2009). The distribution of macrophyte communities is related to engineering measures and differences in river streteches (Gyosheva et al 2020, Janauer et al 2021. Recent surveys provide an overview on wetland macrophytes in the Danube Delta (Niculescu et al 2020).…”
Section: Riparian and Aquatic Plantsmentioning
confidence: 99%