thanks for the detailed input brett. i doubt i'll get that rigorous on my little pond, and my friend's pond has no fish left to catch except the very few survivors as shown above that took 2 hours to catch. maybe in a year or two as the populations rebound creel survey will be in order.
in the past ive kinda just used my gut .....are the fish skinny or fat. great link, i'll hang on to that.