Answer:
Constructing a safe passage for fish seems like a way to avoid the problem, and in theory, it could reduce the risk of injury or death to fish. But my research shows that building fish passages can be difficult, and their effectiveness is mixed. Also, different passages may need to be built for different species, which is time-consuming and costly.
Working with engineers to design a dam with these risks in mind seems to be the ideal solution, because we can design the dam with the native species in mind. But the biodiversity issues related to hydroelectric dams is a fairly new concern, so we may not have a lot of past evidence to reference. We may have to use the trial and error method, which seems risky.
Explanation: Plato