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Abstract
This research was conducted to determine the effect of food (algae, formulated food and Spirulina) and salinity (23‰, 27‰, 31‰ and 35‰) on growth and survival rate of short-necked clam at the veliger larval stage. The experiments were carried out from April to August, 2018 in Nha Trang, Khanh Hoa. The results showed that at the salinity of 31‰, the growth rate (24.89 ± 0.87 μm/day) and survival rate (5.09 ± 0.96%) of larvae were highest and significantly higher than those at the treatments of 23‰ and 35‰ but no significant difference was recorded compared to the treatment of 27‰. The growth and survival rate of larvae was highest (respectively, 21.01 ± 2.72 μm/day and 5.1 ± 1.67%) in the treatment fed algae and showed significant difference from other treatments (p<0.05).
Keywords: growth rate, food, salinity, short-necked clam.