If you've ever wondered how wild caught African cichlids are collected for export, it can be pretty low-tech. Wild caught cichlids from around the world are prized in the hobby as breeding stock. Often referred to as F0 in cichlid offspring parlance, wild cichlids are typically adults and are most often sold by fish importers/breeders. F0 doesn't always mean the fish was taken directly from its native habitat, however. F0s might also be labeled as such if they're pond raised near watefront breeding stations. In any case, here is some good introductory information about the African cichlid exporting business.
For more video footage of Lake Malawi and cichlids, visit the African Cichlid Hub.
The Cichlid Room Companion
Tropical Fish Hobbyist
American Cichlid Assoc.
African Cichlid Hub