Fish and Turbines in the Bay of Fundy

Many sustainable, green technologies are touted to replace fossil fuels. One such technology is in-stream turbines that obtain power from the Bay of Fundy tides. Turbines raise the possibility of adverse interactions with fish.

Let us review the problem of fish-turbine interaction in the scientific way, that is by breaking it down into elementary components that can be independently measured and then assembled together for a complete calculation. Following along the lines of others, we might break things down this way:

The effort is ongoing to measure these things in the Bay of Fundy. In the meantime, it's difficult to conclude much.
At least we can see how the above factors might be related to assess impacts of instream tidal turbines on fish: