That sounds fishy: fish ladders at high-head dams impractical, largely unneeded

Tom Conning, Public Affairs Office — Mon, 19 Jul 2021 15:55:32 GMT

Humans. What other sentient being designs a tool requiring hands and feet and expects animals without limbs to use it? Alas, the answer is humans. Humans created a ladder for fish, which is quite effective in certain situations – but isn’t a blanket solution to every fish passage problem. And while most humans would agree that ladders can be useful for climbing short distances, perhaps 20-50 feet– another tool – like an elevator or truck – may be a better option to climb hundreds of feet. Otherwise, there would need to be more infrastructure to support that ladder, or perhaps it would need to be a staircase at that point. This is similar for fish when moving them up and downstream.

Portland District News

That sounds fishy: fish ladders at high-head dams impractical, largely unneeded