We published a study assessing Multipass Electrofishing Sampling Efficiency for Stream Crayfish Population Estimates. Electrofishing introduces an electric current into the water that stuns crayfishes allowing them to be collected, observed, and later released back to the water with little to no harm. With these observations, scientists can learn about the population size, average weight, and number of males and females in a population.  We sampled crayfish from streams in Alabama and found that conducting 2 or more electrofishing passes allowed us to collect more crayfish than when we made only one pass. When crayfish find cover under rocks and vegetation, one electrical pass may dislodge them, but they often times are still out of reach or unseen by scientists. So sampling additional times allowed us to collect more and provided more accurate data about the populations. We also found that the efficiency of electrofishing was impacted by stream and crayfish characteristics, such as water quality, water conductivity, and crayfish size. In other words, electrofishing is not a one size fits all technique, but with proper understanding of the target species and the environment sample this technique can be a beneficial tool to understanding crayfish populations.