A simple and low-cost recirculating aquaculture system for the production of arapaima juveniles

Abstract

A simple and low-cost recirculating system (RAS) for production of arapaima ( Arapaima gigas ) juveniles is described. Twenty arapaima fry (mean 13.0 cm, 12.0 g) were housed in three production tanks and fed a high HUFA diet resulting in 90% of fry successfully progressing to juveniles (mean 17.4 cm long; 40.2 g). The fish were then reared for a further 72 days fed on commercial extruded pellet feed achieving a mean length of 42.6 cm and 656.6 g. The simple and low-cost RAS holds good potential for production of arapaima juveniles.