Here is my take on bowfishing, but first my background. I was and avid bow fisherman from 2003-2015. Now I am an avid walleye guy. I still go bowfishing just not frequently. My 11 year son is up and coming and absolutely loves bowfishing. So it will probably start to me more again
Now on to my real life experiences with it and its effects.
IT LITERALLY HAS NO EFFECT ON THE POPULATIONS OF ROUGH FISH.
the lake I bow fished had so much of an insane population of fish we would go out every weekend and fill drums overflowing for years. This lake could hardly produce a walleye, crappie, catfish, bass, pike. Then the lake was netted for rough fish and not just a couple hundred. It was done for several years with a total of right around 500,000 lbs of rough fish removed. After that the population never quite came back bowfishing was tough we would maybe get 20-30 on a good night after the netting. But one thing that did change, I can now go out to the lake at any time of the year and feel pretty comfortable that i will get some nice GAME fish. 25″+ catfish are plentiful, eater walleye are getting plentiful. When you find the school of white bass get ready its like every cast and they taste great. the July sundown bite at cool water feeder creeks for pike can be pretty awesome. When we go out bowfishing now We see schools of walleye big old northerns that look like logs laying on the bottom waiting for sunlight to just feed again.
My believe is the game fish never truly got a chance to spawn well. Since in the spring the rough fish would be up in the shallows feeding right after ice out until their spawn mid june. With rough fish they would just destroy the spawning grounds. The shallows were always murky because they were stirring it up. Now with them gone the shallows are crystal clear this allows photosynthesis to thrive which means phytoplankton is now able to grow. phyplankton is what zooplankton feed on. With the increase in both of those it allows the gamefish spawn youth to feed in the shallows in safety from predators. Im excited for the future of this lake as my catch ratio of 10″ walleye last summer was 5-1 of eater fish, and i caught a good amount of eater walleye.