hi michael In my country unless some like me start it up , make progress and show the result locally to the media people will join the club.
we lack exposure as Am exposed to and the type of system used are ponds river banks lake , artificial and water stands.this kind of system unless researched as I did cannot be of good use to my people so monopoly is on the lakes which are doing so bad, and rivers .
fish in so expensive that anybody practicing fish framing take the advantage of hiking the prices.
unlike aquaponics the practices is commonly found in areas of water catchments
I believe like in my semi arid area water can be harvested, filtered and placed into tanks , powered by solar etc, but it all start with someone like me to show theem how it is fished besides that it obvious the resources to startup such like on my side I collect used pipes big water bottles as my local resources to build up a simple barrel for the fish having all the ideas and alternative to make it happen. so that is the much I can explain