Hi Shawn. Let me tell you what I know about rotenone and fish. This, unfortunately, starts to get into that "grey area" where things get a little dicey.
For years, people ate fish after rotenone operations. Most state agencies would let people take the fish and eat them. Then, there was a study done in Spain (I believe) back in the late 70s that indicated that the rotenone caused cancer in rats/mice. I recall that others tried to replicate that study, but without much success. I think they used a very high level of rotenone, and that did cause a tumor. I'm not sure, and I guess it doesn't matter.
Anyway, as a result, most state agencies now recommend that people do not eat fish from rotenone treated waters. I think it's one of those legal issues, where they are unwilling to accept liability. Similarly, a lake association or consulting company may not want to accept that liability either??
Electrofishing, as already indicated, won't get all of the fish. However, those that are caught could either be eaten, or transferred elsewhere.
Hope this helps somewhat. Just in general, I believe it's best to pass on eating fish killed by rotenone. Is it really worth taking a risk?
Dave
