Electrofishing is a helpful method for conservation agencies to gain information.
In order to catch and study fish, special boats are used that create an electric field created within a five-foot range of the front of the boat. This electric current simply stuns the fish for a few minutes before they recover to their normal behavior.
The shock generates between 150 and 600 volts through the small electric field and only fish that swim in the field are shocked. This gives researchers an opportunity to catch the fish using nets and then collect data before returning them unharmed.
Electrofishing is a safe way for researchers to study and learn from these fish. Being specific to this purpose, a setup like in this video is something you just don’t see everyday.