Caught a total of 7. Had 4 on the stringer. I have to say, these are some of the most fun, hard fighting fish, I've ever caught. The picture below is of the second largest one I caught (16"). To give you an idea of how hard they pull, here's what happened to the biggest one I caught.
I have one of those metal clip chain stingers that I hang over the yak and attach to the side handle. I had 4 on (including my biggest 18"~19") while trying to catch more while the bite was on. I can feel them pulling wildly on the stringer, jolting the kayak, making it swing in the current. Eventually, I ran out of bait and the current was getting very swift. As I start heading in, I pulled the stringer just to take a look at the fish again. That big sheep pulled so hard that the metal clip pulled out of the socket! As you can imagine, expletive after expletive poured out of me. The wire part was bent wide open and my heart sank knowing I had no picture, weight or actual measurement.