mana o te moana
1. (noun) authority over the sea/lake - according to Māori custom, land rights extended as well to adjacent sea or lakes with fixed boundaries for inshore and deep-sea fishing and the gathering of seafood.
Ko ngā rohe o taua moana kei ngā pukapuka anō o ngā hoko whenua katoa o te taha o taua moana e mau ana. E mōhio ana a Kāwana Kerei rāua ko Te Mākarini, ko rāua hoki ngā kaiwhakatūturu i taua moana, ki a mātou anō te mana o tō mātou moana hīnga tuna (TW 29/7/1876:284). / The boundaries of that lake are in the deeds of all land sales adjoining that lake. Governor Grey and Sir Donald McLean are aware of these boundaries, as those two were the men who agreed to keep the lake inalienable, and that only we should have authority over that lake and its eel fishing.
See also mana moana