These fish are Asian carp and they are really, really dumb. The invasive species, which has populated substantial portions of waterways in the Great Lakes region, apparently is scared by boat engines and leaps from the water to avoid danger. Not a bad fight-or-flight response really. Except when you start actually jumping into the fisherman's boat, like these fish do around 1:40. Pretty amazing video though. Look how many of these things there are. It must be hell on the ecosystem. Fish and game authorities are currently trying to figure out what to do about the species. One option: eat them. They allegedly taste like cod, are low in fat, and high in omegas. But something tells me they're not exactly brain food.
P.S. Love this guy's laugh.