So this has happened to me twice, once last week. It was on the yellowstone, but has happened on the deschutes before. I was out fishing a regular trout riffle, run, bucket. I was using a euro setup, and I started at the back and hooked a couple of trout. Then as I moved up the run I hooked like 20 whitefish, then no trout at the front of the riffle. Is that just spring whitefish spawning? or are they usually segregated in different parts of the river all year? Or like a water temp deal? Thanks