Most freshwater species are "ambush predators". Edges, shadows, eddies, etc. That's why those things are generally more productive fishing spots. I could be wro

Most freshwater species are "ambush predators". Edges, shadows, eddies, etc. That's why those things are generally more productive fishing spots. I could be wrong, but I seem to recall that even larger shark species tend to hunt around edges like thermoclines.