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This paper documents the structure of flow and bed morphology of a cutoff meander of the Danube River in relationship with a GIS approach. The cutoffs effect produce changes in the repartition of the water and sediment fluxes between the natural channel and the manmade canal, with direct implications on the environmental evolution of the delta. The Dranov de Jos meander (Lower Dranov meander ‒ LDM) belt seems to be one of the most affected by the rectification works performed on Sfântu Gheorghe branch between 1981 and 1992. The upstream and downstream parts of the cutoff are characterized by the decrease of the channel width by banks sedimentation (with the rate of ‒6.2 m/year) and at the apex zone, the bank's sedimentation is associated with intense sediment infilling of the central part of the channel, where a large deposit of 950 m in length and 190 m in width is formed. [ABSTRACT FROM AUTHOR]

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Hydrological and sedimentological data were collected on several cross-sections of both natural and artificial canals of three cutoff meanders (Mahmudia, Dunavăţul de Sus, and Dunavăţul de Jos meanders) of the Sfântu Gheorghe branch at the beginning of June 2017. The hydrological data shows a heterogeneous distribution of water discharges: on the meanders of Mahmudia and Dunavăţul de Jos, most of the liquid flow passes through artificial channels. In the case of the Dunavăţul de Sus meander, the cut meander is the main transport channel for the liquid flow. The statistical analysis of chemical data evidenced an excellent quality of the bottom sediments, with few parameters exceeding the limits (for Ni, Cu, and Cr). These results correlated with the hydrological measurements made on each investigated cross-section. [ABSTRACT FROM AUTHOR]

Copyright of Transylvanian Review of Systematical & Ecological Research is the property of Sciendo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transylvanian Review of Systematical & Ecological Research is the property of Sciendo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transylvanian Review of Systematical & Ecological Research is the property of Sciendo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transylvanian Review of Systematical & Ecological Research is the property of Sciendo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)