Effects of fish stocking density on water quality and the growth of red tilapia and vegetables in microalgae-aquaponic systems

• DOI: 10.55401/7k3bpd04
• Publication Date: 2024-12-28T05:31:27Z
• Authors: Co Thi Kinh; Nguyen Thanh Nho; Vo Thi Dieu Hien; Le Quang Huy; Tra Van Tung; Vu Quang Manh; Le Thai Hoang
• Keywords: Aquaponics

This study investigates the impact of fish stocking density on water quality, red tilapia (Oreochromis sp.) growth, and mustard green (Brassica integrifolia) growth in microalgae-aquaponics systems. Three densities were tested: D1 (90 fish/m³), D2 (70 D3 (50 fish/m³). Water quality monitoring showed that TAN, NO₂⁻, NO₃⁻ levels increased with density, while phosphate remained relatively stable. had highest total weight gain but a lower rate (91.9 %) compared to (105.6 (134.1 %). average per (67.78 g) best survival (100 %), whereas lowest (94 Mustard greens grew D1. Microalgae during experimental time, showing biomass both algal tanks. The results suggest higher promoted plant benefited microalgae, thus offering insights for optimizing recirculating