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

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Size: 3201px × 4801px
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