Influence of salinity on growth and survival of juvenile Sardinella brasiliensis

The aim of the study was to evaluate influence changes in seawater salinity on juvenile Brazilian sardine (Sardinella brasiliensis). Through two assays, LC50 (96 h) and zootechnical performance (42 days) were determined, respectively. In first assay, six treatments 0, 7, 14, 21, 28 35 parts per thousand (ppt) with three replicates established. For this, 100-L cylinder-conical tanks used, 30 individuals 45-day after eclosion (DAE) unit, without water renewal feeding. groups 0 7 ppt, all fish died day. estimated at 11.13 ppt. second trial designed five (salinity ppt), replicates. Two thousand-L cylindrical-conical (58 DAE) feeding until apparent satiation. treatment by At highest growth rates (2.78 g) survival (100%) observed. Salinity 14 ppt had lowest (83%) (1.48 g). We concluded that sardines can be adapted environments from significant losses. However, showed rates.