Why hydropeaking frequency matters: effects of recurring stranding on fish

Journal of Ecohydraulics, Год журнала: 2024, Номер unknown, С. 1 - 17

Опубликована: Ноя. 29, 2024

Research and management of hydropeaked rivers largely overlook the ecological impacts recurring flow fluctuations, such as fish stranding, on ecosystem health. This article synthesizes scientific grey literature, field studies, experiments to assess effects frequent hydropeaking fish. Findings show that frequency significantly affects integrity alpine rivers, with an average three daily down-ramping events. Despite some evidence behavioral adaptation recurrent this appears insufficient counter cumulative effect a series single Larval juvenile are particularly vulnerable, stranding extending population community levels. Effective mitigation should prioritize reducing impact hydropeaks while ensuring single-event ramping rates amplitudes remain within limits. To effectively safeguard sensitive habitats, targeted efforts informed by understanding habitat dynamics critical. Furthermore, maintaining lateral connectivity river systems is essential for supporting resilient populations, especially where possibilities limited. Finally, study identifies future research directions its effects.

Язык: Английский

Do we have to choose between the ecosystems and the energy transition? Environmental trade-offs with operation of Norwegian hydropower

Renewable Energy, Год журнала: 2025, Номер unknown, С. 122595 - 122595

Опубликована: Фев. 1, 2025

Язык: Английский