Browsing NTNU Open by Author "Silva, Ana T."

Now showing items 1-7 of 7

    • 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)
      The obstruction of fish migratory routes by hydroelectric facilities is worldwide one of the major threats to freshwater fishes. During downstream migration, fish may be injured or killed on the trash-racks or in the ...

    • Modelling mitigation measures for smolt migration at dammed river sections 

      Szabo-Meszaros, Marcell; Forseth, Torbjørn; Baktoft, Henrik; Fjeldstad, Hans-Petter; Silva, Ana T.; Gjelland, Karl Øystein; Økland, Finn; Uglem, Ingebrigt; Alfredsen, Knut (Journal article; Peer reviewed, 2019)
      There is no generic solution to establish safe passage of downstream migrating fish passed hydropower facilities and mitigation measures are species‐ and site‐specific. Development of solutions is thus often based on “trial ...

    • Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant 

      Kjærås, Halvor; Baktoft, Henrik; Silva, Ana T.; Gjelland, Karl Øystein; Økland, Finn; Forseth, Torbjørn; Szabo-Meszaros, Marcell; Calles, Olle (Peer reviewed; Journal article, 2022)
      Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant facilities to accomodate downstream eel migration. The results of this recommendation are poorly studied, and ...

    • Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts 

      Szabo-Meszaros, Marcell; Silva, Ana T.; Bærum, Kim Magnus; Baktoft, Henrik; Alfredsen, Knut; Hedger, Richard David; Økland, Finn; Gjelland, Karl Øystein; Fjeldstad, Hans-Petter; Calles, Olle; Forseth, Torbjørn (Peer reviewed; Journal article, 2021)
      Fish swimming performance is strongly influenced by flow hydrodynamics, but little is known about the relation between fine-scale fish movements and hydrodynamics based on in-situ investigations. In the presented study, ...