The man who replaced Jacqui Lambie in the Senate says he has no intention of stepping down to allow her to return to her post.

Steve Martin, the Devonport mayor, says he will serve as a Jacqui Lambie Network senator, representing Tasmania and its people.

Mr Martin intends to remain a Senator for the full term of 6 years as he was allocated and will have to step down from his position as mayor, although he hopes to do so without having a by-election.