The Budj Bim Cultural Landscape in southwestern Victoria is home to one of the oldest and most extensive aquaculture systems on Earth, built by the Gunditjmara people to farm kooyang — the short-finned eel (Anguilla australis).
About 6,600 years ago — and possibly much earlier — the Gunditjmara used the basalt rock from ancient lava flows of the Budj Bim volcano to construct a sophisticated network of channels, weirs, dams, and ponds across roughly 100 square kilometres around Lake Condah. Some stone channels were dug up to 200 metres long to divert water and exploit seasonal water-level changes, creating a managed wetland factory that trapped, stored, and harvested migrating eels.
The Budj Bim Cultural Landscape in southwestern Victoria is home to one of the oldest and most extensive aquaculture systems on Earth, built by the Gunditjmara people to farm kooyang — the short-finned eel (Anguilla australis).
About 6,600 years ago — and possibly much earlier — the Gunditjmara used the basalt rock from ancient lava flows of the Budj Bim volcano to construct a sophisticated network of channels, weirs, dams, and ponds across roughly 100 square kilometres around Lake Condah. Some stone channels were dug up to 200 metres long to divert water and exploit seasonal water-level changes, creating a managed wetland factory that trapped, stored, and harvested migrating eels.
https://whc.unesco.org/en/list/1577/
https://www.eit.edu.au/the-ancient-aboriginal-engineering-of-the-budj-bim-eel-traps/
Ok, whatever dude.