EFFECT OF LARVAL DENSITY AND DIET ON THE GROWTH AND SURVIVAL OF Perna perna MUSSELS IN RECIRCULATION SYSTEM (RAS).

• DOI: 10.33936/at.v5i2.5233
• Publication Date: 2023-07-04T14:48:29Z
• Authors: Mariane Silveira; Renata Gomes; Carlos Gomes; João Ferreira; Francisco Squella; Claudio De Melo
• Keywords: Perna perna

This study evaluated the effect of initial larval stocking density and microalgae concentration in diet on growth number competent larvae (number live at end experiment retained a sieve with mesh size 210 µm) Perna perna water recirculation system (RAS). The was conducted using completely randomized design factorial scheme, one factor being food three levels (low: between 1.26 to 2.19, medium: 2.36 3.94 high: 5.03 7.29 x 104 cells mL⁻¹) second culture density, also (20, 80 200 mL⁻¹), 3 replications each treatment. Larvae fed low high concentrations did not reach competence (210 16 days. However, for medium (2.36 average percentage larvae, day 16, 21.8% ± 7.45, 27.4% 9.91 0.80% 0.26 densities 20, mL-1, respectively.