Browsing NINA Brage by Author "Silva, Ana T."

Now showing items 1-13 of 13

    • 3-D Numerical Study of a Bottom Ramp Fish Passage Using Smoothed Particle Hydrodynamics 

      Novak, Gorazd; Domínguez, José M.; Tafuni, Angelo; Silva, Ana T.; Pengal, Polona; Četina, Matjaž; Žagar, Dušan (Peer reviewed; Journal article, 2021)
      Worldwide, the overwhelming number of man-made barriers in fluvial systems has been identified as one of the major causes of the reported staggering average declines of migratory fish. Fish passages have been shown to help ...

    • 3D modelling of non-uniform and turbulent flow in vertical slot fishways 

      Fuentes-Pérez, J.F.; Silva, Ana T.; Tuhtan, J.A.; García-Vega, A.; Carbonell-Baeza, R.; Musall, M.; Kruusmaa, M. (Journal article; Peer reviewed, 2017)
      Global stocks of freshwater fish have been on the decline for decades, driven in part by the obstruction of their migration routes by anthropogenic barriers. To mitigate such impacts, fishways have been developed to ...

    • Can Energy Depletion of Wild Atlantic Salmon Kelts Negotiating Hydropower Facilities Lead to Reduced Survival? 

      Baktoft, Henrik; Gjelland, Karl Øystein; Szabo-Meszaros, Marcell; Silva, Ana T.; Riha, Milan; Økland, Finn; Alfredsen, Knut; Forseth, Torbjørn (Peer reviewed; Journal article, 2020)
      Repeat spawners constitute an important component of Atlantic salmon populations, but survival of post-spawning individuals (kelts) are often compromised by anthropogenic structures such as hydropower plants (HPPs). Potential ...

    • Combining Fish Passage and Sediment Bypassing: A Conceptual Solution for Increased Sustainability of Dams and Reservoirs 

      Foldvik, Anders; Silva, Ana T.; Albayarak, Ismail; Schwarzwälder, Kordula Valerie Anne; Boes, Robert M.; Rüther, Nils (Peer reviewed; Journal article, 2022)
      Sedimentation is one of the main eco-morphological and technological challenges associated with reservoirs. Sedimentation not only reduces the functional capacity of a reservoir by filling it, but also changes downstream ...

    • Early careers on ecohydraulics: challenges, opportunities and future directions 

      Wilkes, Martin A.; Neverman, Andrew J.; Casas-Mulet, Roser; Adeva Bustos, Ana; McCluskey, Alexander H.; Ouellet, Valerie; Vanzo, Davide; Franklin, Paul A.; Silva, Ana T. (Journal article; Peer reviewed, 2016)
      Early career researchers (ECRs) play a critical role in our knowledge-based society, yet they are the most vulnerable group in the scientific community. As a young, interdisciplinary science, ecohydraulics is particularly ...

    • Experimental hydraulics on fish-friendly trash-racks: an ecological approach 

      Szabo-Meszaros, Marcell; Navaratnam, Christy Ushanth; Aberle, Jochen; Silva, Ana T.; Forseth, Torbjørn; Calles, Olle; Fjeldstad, Hans-Petter; Alfredsen, Knut (Journal article; Peer reviewed, 2018)

    • Experimental hydraulics on fish-friendly trash-racks: an ecological approach 

      Szabo-Meszaros, Marcell; Navaratnam, Christy Ushanth; Aberle, Jochen; Silva, Ana T.; Forseth, Torbjørn; Calles, Olle; Fjeldstad, Hans-Petter; Alfredsen, Knut (Journal article; Peer reviewed, 2018)

    • Interdisciplinary design of a fish ramp using migration routes analysis 

      Novak, Gorazd; Pengal, Polona; Silva, Ana T.; Domínguez, José M.; Tafuni, Angelo; Četina, Matjaž; Žagar, Dušan (Peer reviewed; Journal article, 2022)
      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 ...

    • Pool-Type Fishway Design for a Potamodromous Cyprinid in the Iberian Peninsula: The Iberian Barbel—Synthesis and Future Directions 

      Silva, Ana T.; Bermúdez, María; Santos, Jose Maria; Rabunal, Juan R.; Puertas, Jerónimo (Peer reviewed; Journal article, 2020)
      The Iberian barbel (Luciobarbus bocagei) is one of the most common cyprinids in the Iberian Peninsula, whose migratory routes are often hampered by anthropogenic barriers. Fishways might be an effective mitigation measure ...

    • Position choice and swimming costs of juvenile Atlantic salmon salmo salar in turbulent flow 

      Wilkes, Martin A.; Enders, E. C.; Silva, Ana T.; Acreman, Mike; Maddock, Ian (Journal article; Peer reviewed, 2017)
      Swimming costs (SCs) for fish have been shown to be affected by turbulence. However, this idea has not yet been implemented in habitat models, which often represent hydraulics using water velocity averaged over time and ...

    • The effects of hydrodynamics on the three-dimensional downstream migratory movement of Atlantic salmon 

      Silva, Ana T.; Bærum, Kim Magnus; Hedger, Richard David; Baktoft, Henrik; Fjeldstad, Hans-Petter; Gjelland, Karl Øystein; Økland, Finn; Forseth, Torbjørn (Journal article; Peer reviewed, 2019)
      Anthropogenic structures in rivers are major threats for fish migration and effective mitigation is imperative given the worldwide expansion of such structures. Fish behaviour is strongly influenced by hydrodynamics, but ...

    • The future of fish passage science, engineering, and practice 

      Silva, Ana T.; Lucas, Martyn C.; Castro-Santos, Theodore; Katopodis, Christos; Baumgartner, Lee J.; Thiem, Jason D.; Aarestrup, Kim; Pompeu, Paulo S.; O'Brien, Gordon C.O.; Braun, Douglas C.; Burnett, Nicholas J.; Zhu, David Z.; Fjeldstad, Hans-Petter; Forseth, Torbjørn; Rajaratnam, Nallamuthu; Williams, John G.; Cooke, Steven J. (Journal article; Peer reviewed, 2017)

    • Upstream passage of Potamodromous Cyprinids over small weirs: the influence of key-hydraulic parameters 

      Amaral, Susana Dias; Branco, Paulo; Silva, Ana T.; Katopodis, Christos; Viseu, Teresa; Ferreira, Maria Teresa; Pinheiro, António Nascimento; Santos, José Maria (Peer reviewed; Journal article, 2016)
      The presence of small weirs, far more numerous than dams, has increased habitat fragmentation on rivers worldwide. This study aims to evaluate the upstream passage performance of a potamodromous cyprinid, the Iberian barbel ...