Electrofishing is a standard technique used by environmental biologists to sample fish populations in a lake. About eight feet ahead of the boat, an electric current is produced for short periods.

Stunned fish are easily netted and placed in a holding tank. The fish are returned to the lake after they are weighed, measured for length, and identified. This data helps biologists determine if the growth of fish is normal and if the fish populations are at desirable levels. We can use this information to look at the relationships between fish in the lake as well.

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