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The objective of this study was to evaluate the influence of stocking density on the performance of angelfish (Pterophyllum scalare) reared at different densities for 60 days in water tanks containing cages. A completely randomized designed consisting of three treatments (2.33, 4.66 and 9.33 fish/L) and five replicates was adopted, totaling 105 experimental units. The hydrological variables remained within the standards recommended for the species, regardless of stocking density. Stocking density exerted a significant effect (P<0.05) on survival rate (%). In this respect, animals housed at a lower density exhibited higher survival, while an increase in density negatively affected survival rate. There was a significant effect (P<0.05) of treatment on length uniformity and feed conversion. The best productive performance of angelfish (Pterophyllum scalare) including better feed conversion, survival and length and weight uniformity is observed at the lowest stocking density (2.33 fish/L).

Influência da densidade de estocagem no desempenho produtivo do acará-bandeira (Pterophyllum scalare) cultivado em gaiolas