Fish ladder, also known as fish pass or pool pass, in a small river to facilitate fishes' natural migration

---

Size: 5195px × 3444px
Photo credit: © Matthijs Wetterauw / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: conservation, construction, ditch, engineering, field, fish, fishway, flow, flowing, grass, hydraulic, ladder, landscape, management, meadow, migration, nature, pass, pool, river, steps, water