Trout?

I scoped a new small stream last night and on the edge of the current I saw a huge school of fish that looked very Troutish but couldn't quite tell.

I pitched out my modified hairball fly at them and wham!
Crappies

I sat there and must have pulled 10 out 1 after another.  They were all 8-10 inchers.  I just thought it was a little strange that they were hanging in this stream schooled up on the current edge.  I figured they would've headed into the lake and found refuge in the weeds.