Here is a selection of iAVs from around the world, all of these systems are currently in operation in 2024.
Dr Hesham Haggag, Egypt
Oko Farms, New York
Photograph: Makeda Sandford/The Guardian
The first iteration of Oko Farms started in 2013, on a modest 2,500 sq ft plot in Crown Heights, Brooklyn. She moved to the new location, called River Street Farm Collective in Williamsburg last year. In addition to aquaponics, the site is shared with other small businesses, such as Compost Power and Island Bee Project.
Bezuidenhout Park, Johannesburg
Professor Michael Rudolph says University of Johannesburg and their implementing partner Siyakhana Growth and Development NPO, have replicated several of these systems in the Phumulani Agrivillage in Mpumalanga as well as in a few schools in Tshwane.
No additional nutrients are added because of the richness of the fish waste.