This is a pretty disturbing article by someone who should no better, if he indeed is a fisheries biologist. The impact of river boating on fisheries is minimal at worst. Last I checked, they weren't putting portapotty stations in, on, right next to the water. He's making the grand assumption that the entire banks of a river is or will become a put-in/take-out. I wasn't aware that fish only spawn and lay eggs specifically where we put-in and take-out. At least I know where to fish now. right between the thousands of rafts and kayaks that are polluting the river with just their being present on the water.
Nevermind the fact that more damage was done to these rivers in a 30 year period during the mining boom of the 19th century, or all the road construction where they just seemingly chuck bits of rock off into the river, or the dams they erect to block a river or landowners who make lowhead dams under the max limit set by USACE so that they do not need a permit for so they can make their little private fishing ponds and post poles in the river with "No Tresspassing" on them so they can call the cops everytime they see a boat on the water approaching their precious "private personal space". Afterall, those are their fish.
Yeah, the guy's a twatter who needs to be bitch slapped. You're right, he's probably never boated a river.
And the Lord said, let there be whitewater. So on Friday, the 13th day of the month....