My understanding is that there is no minimum size. But even if there was, the comment that the four fish pictured are "barely legal" is strange. Even if there was a limit, how can all four fish in the picture be "barely legal"? Slot limit?
Update, size limit was not a problem, we caught 0, I mean nothing. But sometimes that’s the best trip, you start thinking hard about how did those sneaky fish just whoop the fire out of me, I’m wounded ,but I will be back better and stronger next time.