Barnaby dismissed claims he was part of a renegade bloc.
David Littleproud has been reinstated as the nation's Ag Minister, however has shed the water portfolio.
"We've had three failed crops in a row - that's unheard of for my region in the 40 years I've been farming there."
A Legislative Council committee has released more than 230 submissions to an inquiry on fin-fish farming in Tasmania.
"I don't expect him to challenge again. I was endorsed as the leader three times in two years," Michael McCormack said.
"The prime minister talks about the quiet Australians, our job is to represent the near invisible Australians."
"All these faces are causing uncertainty and instability in a sector which is crying out for stability and strategic direction."