"Ngāti Hei and Hauraki iwi are currently working through their operation plan with assistance from DOC.
"We ask members of the public to be patient and understanding as this is an emotional time for all involved," Kelly said.
The rāhui is in collaboration with Ngāti Hei, DoC, Waikato Regional Council, Thames-Coromandel District Council and Whitianga police.
Ngāti Hei has named the sperm whale Puhiwai Rangi which refers to the name of the whenua adjacent to the place where the deceased whale was found.
Ngāti Hei kaumatua, Joe Davis said: "The gift from Tangaroa - Puhiwai Rangi - has been brought back to Wharekaho. The taonga will live on with cultural significance and respect".
Information on sperm whales can be found here.