fish pass
Aquatic migration route
A fish pass is a structure that allows fish to migrate past an obstacle in a river, typically a dam or weir.
Also called a fish ladder or fishway, these channels or stepped pools let species like salmon navigate upstream to spawn.
The new dam includes a fish pass to protect the native trout population.
Low river barrier
- damWater-holding barrier
- bypassRoute that skirts obstacles
- channelPassage for transmission
- culvertTunnel for water passage
fishway · baffle · pool · notch · sluice · upstream · downstream · hydropower
Pink-fleshed migratory fish
- troutFreshwater game fish
- eelElongated scaleless fish
- sturgeonLarge armored fish
- shadCoastal herring variety
lamprey · herring · steelhead · char · grayling · alewife · striped bass · Atlantic salmon
Seasonal upstream fish trek
- spawningReleasing eggs to reproduce
- upstreamToward a river's origin
- anadromousMigrating upstream to breed
- seasonalRecurring at fixed intervals
journey · return · lifecycle · breeding · smolt · adult · native · wild
Organism's natural environment
- restorationReturning something to condition
- biodiversityRange of life forms
- ecosystemInterconnected organisms and surroundings
- endangeredAt risk of extinction
recovery · rewilding · environmental · sustainability · wildlife · native species
weir
Low river barrier
culvert · fishway · baffle · pool · notch · sluice · upstream · downstream · hydropower · lock
salmon
Pink-fleshed migratory fish
shad · lamprey · herring · steelhead · char · grayling · alewife · striped bass · Atlantic salmon · Pacific salmon
salmon run
Seasonal upstream fish trek
- spawningReleasing eggs to reproduce
- upstreamToward a river's origin
- anadromousMigrating upstream to breed
seasonal · journey · return · lifecycle · breeding · smolt · adult · native · wild · stock
habitat
Organism's natural environment
- restorationReturning something to condition
- biodiversityRange of life forms
- ecosystemInterconnected organisms and surroundings
endangered · recovery · rewilding · environmental · sustainability · wildlife · native species
- fishwaysfishway, salmon ladder, pool ladder
- fish habitatsriver, stream, ocean, creek, lake