Just got back from vacation. I shock about 100 diff. ponds a year. This will help answer some questions I hope. Elongated species shock better i.e. bass better than bluegill. Bigger fish shock better but as mentioned my have the strentgh to kick out of the field and you may miss the big boy. Catfish shock poorly with a typical hanging electrode setup but great when conductivity is properly adjusted with bottom setup. I have fish that jump out of my nets and I have had large bass stay stunted for over 20 mins. The only fish I kill are young of year less than 2 inch bass. For some reason if I come across a group of them they will float up died. I feel elctrofishing is a low stress activity. They are swimming then they wakeup in a holding tank. Once relased after data collection they should be fine. I try not to do an analysis in the peak of the summer to reduce stress occurence. Many factros to consider making a professinal a must to get good results.

Greg Grimes
www.lakework.com