Electric fishing is used to stun fish, but not kill them, so that we get accurate identification of all species present in a stream or river. It is also useful for accurate monitoring of invertebrate life present in the waterway. This information is necessary for assessing the effects of activities for both new resource consent applications and for monitoring existing consent conditions where aquatic fauna values exist.

Dr Phillip Jellyman (NIWA) working on fish survey for the Kakapo Brook hydro-irrigation assessment of environmental effects.