For those of you that don’t know me, I’m Chris Frederiksen with the Yakama Nation Fisheries program and today I’ll be talking about an approach I’ve recently developed for modeling production of both anadromous and resident ecotypes of O.mykiss when they exist in sympatry. I’ve specifically titled it with framework because there is still so much that biologists don’t know about the interactions between the two ecotypes and in its current state, the model is a work in progress.