Forest and Bird have reacted to Central Hawke's Bay Councillor Andrew Watts' accusation that it wasn't true to its principles because it does not call for trout to be removed from streams.
During his council election campaign Mr Watts said that Wellington wildlife park Zealandia had removed trout from its upper waterways, with native fish life immediately increasing.
"Which proves trout are just cannibals."
Forest and Bird spokesman Kevin Hackwell said it was not practical to call for their removal and Zealandia was "a unique situation" because the park was at the top end of a stream and had a dam to control access.
"They had to take as many native fish as they could from the location and then not only killed the trout, but all the remaining native fish."