Effect of Salinity on the Survival and Growth of the Larvae and Juveniles of Japanese Grenadier Anchovy Coilia nasus

AbstractThe anadromous Japanese Grenadier Anchovy Coilia nasus is a commercially important fish that is mainly distributed in the Yangtze River and its estuarine area. Two trials were performed to determine the effect of acute salinity stress on the survival of early C. nasus larvae at 0 d posthatch (DPH) and 2 DPH. The salinity treatments for these two trials were 0.4, 5, 10, 15, 20, and 25‰. A third trial compared the growth of juveniles in 3, 6, 9, 12, 15, and 18‰ salinity. Larvae could only tolerate a limited range of salinity ( 12‰) caused low survival, and low salinity (<6‰) caused poor growth. The optimum salinity for the survival and growth of C. nasus juveniles ranges from 6‰ to 12‰.Received November 30, 2014; accepted April 29, 2015