Influences of Salinity on Embryonic and Larval Development of Striped Catfish Pangasianodon hypophthalmus

Salinity intrusion in coastal areas due to climate change is alarming. In this study, the effects of salinity on embryonic and larval development striped catfish ( Pangasianodon hypophthalmus ) were studied experimentally. Embryos larvae exposed seven treatments (0, 2, 4, 6, 8, 10, 12 ppt), each with three replications. Considerable survivability embryos was recorded up 6 ppt salinity. Mortality significantly increased at 8 10 salinity, 100% mortality displayed within h exposure The rate hatching reduced 24 lethal concentration (LC50) value for embryo 11.24 ppt. Different types deformities, such as undeveloped yolk sac, elongated gastrula sac bud, highest Similar embryo, considerable mortalities found 48 LC50 values 10.63 8.48 ppt, respectively. Several including ulceration, spine scoliosis, tail bent, edema, compromised swim bladder inflation, after exposure. Within exposure, about 80% absorbed while 30%–50% 0–6 Growth rates terms length weight higher 0, 4 moderate Overall, current findings define limits optimize hatchery procedures culture species low saline brackish water.