fish ladders
Upstream migration routes
Fish ladders are structures built alongside dams or waterfalls that allow migrating fish to pass upstream.
They consist of a series of ascending pools, each slightly higher than the last, creating a staircase effect that fish can navigate by swimming and jumping.
Also called fishways.
The salmon made their way up the fish ladder to reach their spawning grounds.
- salmonPink-fleshed migratory fish
- concrete stepsStairs made from hardite mix
- spawningReleasing eggs to reproduce
- anadromousMigrating upstream to breed
- upstreamToward a river's origin
upstream migration · smoltification · leap of faith · baffles · rivers · spawning grounds · migration · bypass · habitat restoration · ecosystem · fisheries · swim · tributaries · water flow · trout · hatchery · ascent · waterfall
- structureshouse, bridge, buildings, dome, building
- Water Engineeringdams, levees, canals, aqueducts, spillways
- fish migrationsalmon run, upstream migration, migratory routes, seasonal migration, outmigration
- River Conservationdam removal, watershed protection, water quality, habitat restoration, stream restoration
- salmon fisheriessalmon fishing, chinook salmon, coho salmon, sockeye salmon, pink salmon
- salmon industrysalmon, hatcheries, wild-caught, pink salmon, sockeye
fish passage
fish laddersdam
Water-holding barrier
weir · hydroelectric dam · culvert · turbines · lock gates