Who built the fishponds before the Tahitians?

[reni]

glassnumbers,
If you enjoy reading about the history of Polynesia, may I suggest "Keneti"by Bob Krauss.
(University of Hawaii Press)
"Keneti", is the biography of anthropologist, Kenneth Emory.
It is a fascinating narrative on his Polynesian adventures, research & discoveries which spanned approx.5 decades .