Ben Erb of Bemidji, Minnesota, planned an afternoon of solo kayak fishing near his home on July 3. He’s a graduate fisheries biologist researcher at Bemidji State University, an ardent angler and a big fan of catching bowfin — a native fish he says are largely underrated by America’s anglers. Around 1 p.m. on that warm and sunny afternoon, Erb launched his kayak into a backwater area of the Mississippi River. Related: This Kayak Fisherman Found …