id imagine its pretty difficult unless you have connections with someone in customs department of the brazilian government. since the ban on export of gamefish, the only vendor I know of that has brought wild bass from brazil in is Jeff Rapps.
collecting the bass personally would also be expensive. You would have to find some way to transport yourself to brazil (ie. plane ticket $$$), then when you get there you'd probably have to rent a vehicle ($$$), then hire a guide that knows the area ($$$), buy/or rent fishing rods ($$$), rent a boat ($$$), keep the fish you caught alive ($$$), have somewhere to stay ($$$). Then comes the fun part where you get to illegally export the fish somehow.
When i recieved the pricelist he mencioned them as wild caught.
I trust this guye and never had problems with all my orders.
Next week i'm waiting for a WC wolfish from Daniel (maybe the first one in Greece).
thats the thing about orinos though, they along with monos, ocells, and tems are widespread and can be found in other countries like columbia, guyana, venezuela etc.
kelberi, piquiti, melaniae, intermedia, pinima, and fogo seem only to be indigenous to brazilian waters and thats why wc ones are so rare.