The formal identification process is underway and the death has been referred to the coroner.
Police had been called to the scene in January after reports a man had fallen from a boat and been swept downstream.
The vessel was found nearby while initial search efforts for Roe involved helicopters and jet boats.
A family member said the father of four had been crossing the river by boat to return home for dinner and the family had remained at their property in the Waioweka Gorge near to the incident.
Crossings by boat were necessary at the time because of damage to a nearby swing bridge.
Roe had lived in the area with his youngest son and wife since July last year and was said to be familiar with the river.
He was well-known in the Bay of Plenty business community as the founder and investor of Inversehair, a sub-zero cordless hairstyling tool.
A Givealittle page was set up to support the family.