Electrofishing uses direct current electricity flowing between a submerged cathode and anode.
This affects the movement of the fish so that they swim toward the anode, where they can be caught. Electrofishing is a common scientific survey method used to sample fish populations to determine abundance, density, and species composition. When performed correctly, electrofishing results in no permanent harm to fish, which return to their natural state in as little as two minutes after being caught.
Conservation Connect Toolboxes are packaged episodes with additional middle school related content such as Conservation Connect lesson plans tailored to the Next Generation Science Standards, an activity guide, and a photo gallery for your students to use.