Fish downstream passage over weirs at low-head hydropower plants: Field study of total dissolved gas concentrations

• Main Authors: Süss, Gabor, id_orcid:0 009-0001-9905-2139, Albayrak, Ismail, id_orcid:0 000-0002-4613-6726, Evers, Frederic M., id_orcid:0 000-0001-5181-8978, Boes, Robert, id_orcid:0 000-0002-0319-976X
• Other Authors: Felder, Stefan, Crookston, Brian, Heller, Valentin
• Format: Conference Object
• Language: English
• Published: ETH Zurich 2024
• Subjects: downstream fish passage; weir fish passage; total dissolved gas; supersaturation; gas bubble disease; Weir; Low Head; Atlantic salmon; Salmo salar
• Online Access: https://hdl.handle.net/20.500.11850/676021; https://doi.org/10.3929/ethz-b-000676021

Hydropower plants (HPPs) and other barriers interrupt the longitudinal connectivity in river networks, which hinders or delays fish migration. One potential solution for downstream fish passage is to use conventional spillways and weirs, e.g., in periods of pronounced fish downstream migration. Howe...