Claim: In the Ancient Hawaiian aquaculture, fishponds were located next to the mouth of a stream and had porous lava walls that let in seawater (or sometimes fresh or brackish water, as in the case of the "Menehune" fishpond, a historic Hawaiian fishpond listed on the U.S. National Register of Historic Places, near Līhuʻe, Kauaʻi), but prevent the fish from escaping.
Evidence: The Hawaiian people practiced aquaculture through development of fish ponds (Hawaiian: loko iÊ»a), the most advanced fish husbandry among the original peoples of the Pacific. Fishponds were located next to the mouth of a stream, so by opening a sluice gate the pondkeeper provided the fish with water rich in nutrients that had passed through inland, terraced pondfields and returned to the stream. The porous lava walls let in seawater (or sometimes fresh or brackish water, as in the case of the "Menehune" fishpond near LÄ«huÊ»e, KauaÊ»i), but prevent the fish from escaping. The Menehune Fishpond, near Lihue, Hawaii, on the island of Kauai, is a historic Hawaiian fishpond. Also known as Alekoko Fishpond, it has been listed on the U.S. National Register of Historic Places.