Credit: Kevin Fitzsimmons (USA) – Elaborated description: Abdel Rahman El Gamal SidrotunNaim with mud crab (Scylla sp.) captured in shrimp-seaweed (Gracilaria sp.) polyculture pond in Sigli, Aceh, Indonesia Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a …