Growth of Anguilla anguilla in Different Densities in Out-Door Containers with Tilapia aurea

Abstract

Growth of Anguilla anguilla at different densities in monoculture and in polyculture with Tilapia aurea were studied in conditions close]y related to a soil bottom fish-pond. Eels were stocked at densities of 25 or 50 A. anguilla m ² (10.75 ft²) or 25 A. anguilla and 20 T. aurea per m². Growth was more rapid than those of fish stocked at densities of 100 A. anguilla per m 2 (10.75 ft²), at low densities the average weight of the eels increased from 4 gm. (0.14 oz) to over 100 gm (3.53 oz). T. aurea, however grew at about the same rate in all experimental groups. Mortality of A. anguilla was highest in groups that had been stocked at a higher density.