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Interdisciplinary design of a fish ramp using migration routes analysis

Author

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  • Novak, Gorazd
  • Pengal, Polona
  • Silva, Ana T.
  • Domínguez, José M.
  • Tafuni, Angelo
  • Četina, Matjaž
  • Žagar, Dušan

Abstract

The study presents several steps of a fish ramp geometry optimization performed with a 3D numerical model DualSPHysics, which is based on the smoothed particle hydrodynamics (SPH) method. The optimization process led to the design of a bottom ramp that is capable of providing suitable conditions for the migration of target fish species (Salmo truta, Phoxinus phoxinus, Cottus gobio, and Eudontomyzon vladykovi). Migration routes were determined as complex 3D volumes of fluid according to the simulated velocity field in various steady flow conditions. Including three categories of potential migration zones (rest, effort, and limit zones), migration routes were quantified in high detail in terms of the size and position of each zone, and in terms of the distance from a given fluid part to the nearest rest zone. The interdisciplinary approach of this study also led to the development of new tools for the DualSPHysics model, specifically suited to improve functionality in eco-hydraulics research.

Suggested Citation

  • Novak, Gorazd & Pengal, Polona & Silva, Ana T. & Domínguez, José M. & Tafuni, Angelo & Četina, Matjaž & Žagar, Dušan, 2023. "Interdisciplinary design of a fish ramp using migration routes analysis," Ecological Modelling, Elsevier, vol. 475(C).
    • Handle: RePEc:eee:ecomod:v:475:y:2023:i:c:s0304380022002873
    DOI: 10.1016/j.ecolmodel.2022.110189
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    References listed on IDEAS

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    1. Barbara Belletti & Carlos Garcia de Leaniz & Joshua Jones & Simone Bizzi & Luca Börger & Gilles Segura & Andrea Castelletti & Wouter van de Bund & Kim Aarestrup & James Barry & Kamila Belka & Arjan Be, 2020. "More than one million barriers fragment Europe’s rivers," Nature, Nature, vol. 588(7838), pages 436-441, December.
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