In what situations would you use a dewatering method during electrofishing?

Using a dewatering method during electrofishing is particularly effective when operating in very shallow water. In shallow environments, the electrical field created by the electrofishing gear can be less effective because the water column is too small to effectively disperse the current needed to attract and stun fish. Dewatering involves temporarily removing water from a specific area, allowing for a more controlled environment where fish can be more easily and safely captured.

In shallow water, the technique helps to concentrate the fish, making it easier for them to be reached and reducing the risk of collateral damage to non-target species or habitat. This method ensures that one can apply the electrofishing equipment in a more focused manner, maximizing efficiency and safety for both fish and the surrounding ecosystem.