Mrs Bragger said her brother-in-law was originally from Rotorua and had shifted to Wairarapa in the early 1960s.
The Ngati Kahungunu father of three, who was main speaker and kaumatua at Hau Ariki Marae in Martinborough, had launched from Sandy Bay with his dog named Ice Cream and about eight hours later his car and trailer were found empty.
A police dive squad and fishing boats joined in the search by an RNZAF Orion aircraft that scoured deeper waters off the coast from early Friday after high winds turned around a helicopter search.
Searchers failed to find Mr Kiel despite Ice Cream returning safely to shore and the discovery of his inflatable boat 68km off the coast.
Haami Te Whaiti, Ngati Hinewaka spokesman and kaitiaki, said a group of up to 30 people gathered for a ceremony to place a month-long rahui, or fishing ban, at Sandy Bay late on Wednesday.
"The rahui was placed because it's been more than a week and Tupara has still not been found. The best possible scenario is that this will happen and in that case the ban may be lifted early," Mr Te Whaiti said.
The rahui extends from Manurewa Point in the south to Te Awaiti Point he said, and was placed under the authority of Ngati Hinewaka, Ngati Kahungunu ki Wairarapa and Hau Ariki Marae.
The rahui forbids all fishing, collection of seafood and recreational swimming, Mr Te Whaiti said.
Some commercial operators had been notified and supported the ban, he said, which relies on co-operation.
Trevor Hawkins, Hau Ariki Marae Trust chairman, said Mr Kiel had been the only kaumatua at the marae, where he also was the main speaker.
"It's a huge loss for us. At this stage our focus is on the family and we're more worried about getting him home. We want him back."