Ngametua Terekia, of Ashburton, appeared in the Timaru District Court on May 22.
Terekia plead guilty to a charge of fishing in an unauthorised manner, namely using a portion of fish as bait.
Terekia was convicted and ordered to pay a total of $500 in fines and costs.
Terekia had previously been processed by Central South Island Fish & Game in 2016 for the same ‘unauthorised bait’ offence.
Terekia had been previously processed by Central South Island Fish & Game in 2016 for the same ‘unauthorised bait’ offence and for using more than one rod in 2016, and fishing without a licence in 2015.
Central South Island compliance co-ordinator Hamish Stevens said: "This successful prosecution serves as a deterrent to those anglers considering breaching the rules, in that they may risk significant fines and a criminal conviction."
