Credit: Mukhtiar Ahmed (Pakistan) The first photo shows the fingerlings of all-male Nile tilapia, Oreochromis niloticus in plastic oxygenated bags transporting through boat to cages in Keenjher lake, Thatta Sindh, Pakistan. The second photo shows the release of the fingerlings in the cages. Note: We decided not to watermark the photos in order not to upset its …