Artículos de revistas
Pacific white shrimp, red drum, and tilapia integrated in a biofloc system: Use of tilapia as a consumer of total suspended solids
Fecha
2021-01-01Registro en:
Journal of the World Aquaculture Society.
1749-7345
0893-8849
10.1111/jwas.12832
2-s2.0-85111078542
Autor
Marine Aquaculture Station
Waddell Mariculture Center – South Carolina Department of Natural Resources (USA)
Universidade Estadual Paulista (UNESP)
Institución
Resumen
The objective of this study was to evaluate tilapia, Oreochromis niloticus, for the biological control of suspended solids in an integrated biofloc technology (BFT) system rearing red drum, Sciaenops ocellatus, and Pacific white shrimp, Litopenaeus vannamei. Four integrated systems were structured with recirculating water in closed circuits composed of separate tanks for each species. The experiment compared the use of tilapia to control suspended solids (biological treatment [BT]) to control systems without tilapia. The initial mean weights and stocking densities were: 2 g and 250 ind/m3 for shrimp; 71 g and 1.04 kg/m3 for red drum; and 85 g and 5.12 kg/m3 for tilapia. Temperature, dissolved oxygen (DO), pH, alkalinity, salinity, total suspended solids, total ammonia nitrogen (TA-N), and nitrite were measured. Temperature, DO, pH, alkalinity, and TA-N were maintained within guidelines recommended for shrimp, red drum, and tilapia. Nitrite concentrations remained within guidelines for red drum and tilapia. No significant difference in growth performance between the control and BT was observed, but the apparent consumption of solids in systems with tilapia resulted in decreased particulate matter in the effluent compared to the control. The study showed that the tilapia could control the suspended solids when integrated with red drum and marine shrimp culture with BFT in an integrated multitrophic system.