The Otago Fish and Game Council wants candidates standing for the Central Lakes Trust to declare their positions on Nevis River hydro-electricity development.
Chief executive Niall Watson said some voters wanted to know which candidates had positions on dams.
So far one candidate, Greg Wilkinson, of Cromwell, has said he is against dams. The trust's assets include 100% shareholding of Pioneer Generation, which owns two Nevis Valley pastoral leases and has been considering hydro scheme options on the river.