Once inside, they instinctively swim against the strong current of water rushing downward. That means they end up moving backward down the spiral, eventually getting pushed out the bottom of the helix into the river.
This method has lead to better survival rates than when the fish were spilled over the top of the dam.
I’m more confused about the fact that the salmon go in backwards
Salmon treadmill?
Fishy want get stronk.
wow this is awesome!
https://ecology.wa.gov/blog/august-2024/salmon-restoration-project-helps-strengthen-sockeye-population-in-the-yakima-basin
I guess they try to escape the current
I dont know, the video was too long
Salmon like to go downstream backwards
Its actually walking and gacing up a downward moving escalator at a slower speed than the escalator.