AWA Vol.37/No.2 Aquaculture April 4, 2021April 4, 2021 admin 0 Comments Aquaculture 37.2 Recirculating Aquaculture Systems (RAS) – Pros and Cons April 4, 2021April 4, 2021 admin In recent years, aquaculture is one of the fastest developing sectors in the Middle East and the Arabian Gulf region.