Don't get caught with red side dice as they are either threatened or endangered (not sure their category but it's not good). Also the obvious goby, rough, rudd and stuff like that. If your scooping at the duct or Niagara River into a school they're most likely the common emerald shiners that don't look anything like illegal baitfish. Traps in the creeks are a little harder to sort. Bass look like bass, pike like pike an baitfish like baitfish. I've got the odd carp or sunfish in there too. Your likely not going to catch emerald shiners in a trap.