Issue |
E3S Web Conf.
Volume 437, 2023
The 5th International Conference on Green Environmental Engineering and Technology (IConGEET2023)
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Article Number | 02006 | |
Number of page(s) | 9 | |
Section | Environmental Management and Protection | |
DOI | https://doi.org/10.1051/e3sconf/202343702006 | |
Published online | 16 October 2023 |
Methodology for Identification of Areas with Possible Risk for Sturgeon Species Migration Disruption on The Lower Danube
National Institute for Research and Development in Environmental Protection Bucharest, Romania
* Corresponding author: dkrcontrol@yahoo.com
In the context of the continuing decline of the species belonging to the order Acipenseriformes on a global level, the anadromous sturgeon species sturgeon species in the Lower Danube have been affected by a significant reduction in historical migration routes and fragmentation of breeding habitats. This paper presents the stages of the methodology for identifying areas that present a possible risk of interruption of sturgeon migration in correlation with satellite images and daily values for discharge/water level databases. In order to determine the two ranges of values that characterize the extreme phenomena (high/low flows), a hydrological statistical analysis was carried out for the most extensive period of time covered by recorded data (January 2011 – May 2023) in the hydrometric station located in Calarasi, Romania. Based on the 4524 values from the series of average daily discharge values, the discharge hydrograph, the empirical curve of insurance/exceedance probability and the frequency and duration curves using 200 m3/s discharge steps were determined and represented. Correlated with satellite imagery recorded during the determined time intervals with extreme phenomena, there were identified areas with possible risk for sturgeon species migration disruption.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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