DFO could do a better job of making it easier for the novice to identify the different salmon species more accurately. First step..does it have sharp teeth....if yes it is a spring or a coho. this step positively eliminates 3 possibilities right off the bat..giving everyone a 50% chance of being right. If no sharp teeth your dealing with a pink, socket or chum. You still have to apply the other identifiers to pin it down precisely, but the odds of being right are considerably better.