Well, no. Part of the reason that I bought a 998 was to locate Paddlefish (aka spoonbill). We snag them in a Spring season and snagging is exhausting. Spotting your large sturgeon on the Columbia seems like a snap, but I have not had much luck locating our 50 lb spoonbill. I would hope that someone has located sturgeon as the technique/image might be similar for me in MO. Good luck!