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Fish Pass Functionality in Relation to the Dynamics of Hydrological Conditions in the Upper Course of the River Iskar (Case Study)

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The investigated fish pass is a part of а low-head hydrostatic pressure machine (HPM) located on an existing weir in the upper Iskar River. Monitoring of the hydraulic features of the fish pass was performed under different hydraulic conditions. Diversity and abundance of the local fish fauna was investigated with the aim to verify target fish species. A major limiting factor for using of the fish pass during flood periods was high water velocity (both inside the fish pass and at the fish pass downstream entrance), while during the low water discharge periods it was the insufficient water depth in some pools and the significant differences between the water levels in adjacent pools. The difference between the water levels at the entrance and exit of the fish pass reduces the chances for access of small-sized fish species. Some measures for improving fish pass functionality were developed. Several re-construction solutions were proposed in an attempt to help solving the identified problems.
Słowa kluczowe
Rocznik
Strony
66--72
Opis fizyczny
Bibliogr. 16 poz., rys.
Twórcy
  • Department of Hydraulic, Irrigation and Drainage Engineering, University of Architecture, Civil engineering and Geodesy, 1 Hr. Smirnenski Blvd., 1046 Sofia, Bulgaria
autor
  • Department of General and Applied Hydrobiology, Faculty of Biology, Sofia University, 8 Dr. Tsankov Blvd., 1046 Sofia, Bulgaria
  • Department of Hydraulic, Irrigation and Drainage Engineering, University of Architecture, Civil engineering and Geodesy, 1 Hr. Smirnenski Blvd., 1046 Sofia, Bulgaria
  • Department of Hydraulic, Irrigation and Drainage Engineering, University of Architecture, Civil engineering and Geodesy, 1 Hr. Smirnenski Blvd., 1046 Sofia, Bulgaria
  • Department of General and Applied Hydrobiology, Faculty of Biology, Sofia University, 8 Dr. Tsankov Blvd., 1046 Sofia, Bulgaria
Bibliografia
  • 1. Amaral S. D., P. Branco, A. Teixeira da Silva, C. Katopodis, T.Viseu, M. T. Ferreira, A. N. Pinheiro & J. M. Santos (2016), Upstream passage of potamodromous cyprinids over small weirs: the influence of key-hydraulic parameters, Journal of Ecohydraulics, 1:1–2, 79–89
  • 2. BMLFUW Guidance on the Construction of Fish Passes, (2012) Federal Ministry of Agriculture, Forestry, Environment and Water Management, Vienna, Austria
  • 3. Hall C.J., Jordaan A, Frisk M.G. (2012), Centuries of anadromous forage fish loss: consequences for ecosystem connectivity and productivity, BioScience 62(8), 723–731
  • 4. Hristova N. (2012), Rivers of Bulgaria, Tip – Top Press, (In Bulgarian)
  • 5. Kanev E., M. Mitankina, K. Ignatov and E. Uzunova (2016), Longitudinal connectivity for fish migration in upper reaches of the Iskar River and prioritization of the restoration measures, Procc. of 41st International Association for Danube Research (IAD) Conference
  • 6. Kanеv E., E. Uzunova (2015), Effects of habitat fragmentation on current distribution of the genus Cottus (Cottidae) in Bulgaria, International Conference on river connectivity: Best practices and innovations, Holland
  • 7. Kottelat, M., J. Freyhof (2007), Handbook of European freshwater fishes, IUCN SSC, Cornol, CH: Publications Kottelat
  • 8. Nilsson C, Reidy C.A., Dynesius M, Revenga C. (2005), Fragmentation and flow regulation of the world’s large river systems, Science 308, 405–408
  • 9. Ovidio M., Philippart J.C. (2002), The impact of small physical obstacles on upstream movements of six species of fish – synthesis of a 5-year telemetry study in the River Meuse basin), Hydrobiologia, 55–69
  • 10. Poulet N. (2007), Impact of weirs on fish communities in a piedmont stream, River Research and Applications, 23, 1038–1047
  • 11. SNIFFER, Water Framework Directive (2010), Coarse resolution rapid-assessment methodology to assess obstacles to fish migration: field manual, level A assessme, Edinburgh: Scotland and Northern Ireland Forum for Environmental Research
  • 12. Therrien, J, and G. Bourgeois (2000), Fish Passage at Small Hydro Sites, Report by Genivar Consulting Group for CANMET Energy Technology Centre, Kanada
  • 13. Uzunova, E., I. Milanova, A. Futekova, & L. Rashkova & E. Tasheva (2012a), Fish Diversity and Community Structure in a Highly Fragmented Section of the Upper Iskar River, Bulgaria), In: Proceedings of the International Conference Ecology – Interdisciplinary Science and Practice, Bulgaria, Part 2, 215 – 225.
  • 14. Uzunova, E., A. Futekova, I. Milanova & L. Rashkova (2012b), Effect of River Fragmentation on the Abundance and Size Structure of Barbus petenyi (Actinopterygii: Cypriniformes: Cyprinidae), the River Iskar, Bulgaria), Acta Zoologica Bulgarica (Supl.4), 201–210
  • 15. Uzunova, E., D. Kisliakov (2014), Fischdurchgängigkeit der Wasserdruckmaschine), Korrespondenz Wasserwirtschaft, DWA auf der IFAT, 7. Jahrgang, Nr.2
  • 16. Vowles, S., S.P. Karlsson, E. P. Uzunova, P. S. Kemp (2014), The importance of behavior in predicting the impact of a novel small-scale hydropower device on the survival of downstream moving fish, Ecological Engineering 69, 151–159
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-d7cfb189-60d8-4b21-8a76-466901e72493
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