Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
I was thinking about going to the Chena river. If I do catch pike instead then I still won't complain, it will just make the rare sheefish more special when I do catch them.
Jason can address this much better than me, but I believe that pike and sheefish hold in different kinds of water. I don't remember sheefish mixing much with other species, either.