TY - JOUR AU - Kien, Nguyen Trung AU - An, Hua Thai AU - Sang, Huynh Minh AU - Hoang, Do Huu AU - Nguyen, Cao Van AU - Hoa, Ho Thi PY - 2021/04/11 Y2 - 2024/03/29 TI - Captive culture of two sea snake species Hydrophis curtus and Hydrophis cyanocinctus JF - Vietnam Journal of Marine Science and Technology JA - VJMST VL - 20 IS - 4A SE - Articles DO - UR - https://vjs.ac.vn/index.php/jmst/article/view/15653 SP - 105-114 AB - <p>Acclimation culture and trial culture of two sea snake species <em>Hydrophis curtus</em> and <em>H. cyanocinctus</em> in composite tanks were conducted to determine growth, survival rate, predation behavior and prey selection. The results showed that adults of <em>H. curtus</em> and <em>H. cyanocinctus</em> did not capture any prey such as anchovy, eel and shrimp in a period of 30 days of acclimation culture. The body weight of two these species reduced gradually from 783.3 ± 76.4 g and 360.0 ± 60.0 g to 660.0 ± 135.2 g and 315.0 ± 77.8 g, respectively. Survival rate was 100% in <em>H. curtus</em> and 80% in <em>H. cyanocinctus</em>. Meanwhile, the results of acclimation culture of sea snake juvenile revealed that frozen anchovy was preferred prey in both of two species. The body weight of <em>H. curtus</em> increased from 49.8 ± 0.5 g to 70.0 ± 8.2 g and that of <em>H. cyanocinctus</em> was 44.3 ± 3.1 g to 47.1 ± 5.2 g. The prey capture rate of <em>H. curtus</em> and <em>H. cyanocinctus</em> was 100% and 60%, respectively. Survival rate of the juvenile of two species was 100% after 30 days of acclimation culture. In 60 days of trial culture, similar results as acclimation culture were observed in adults of two sea snake species, they still did not capture any prey and the body weight reduced gradually. The result of 60-day culture of sea snake juvenile showed that the prey capture rate was 100% in both of two species. The body weight of <em>H. curtus</em> and <em>H. cyanocinctus</em> increased from 70.0 ± 8.2 g and 57.5 ± 5.8 g to 78.3 ± 15.3 g and 65.0 ± 14.1, respectively. SGR of <em>H. curtus</em> was 0.16 ± 0.32 %/day and that of <em>H. cyanocinctus</em> was 0.52 ± 0.36%/day. The survival rate of <em>H. curtus</em> and <em>H. cyanocinctus</em> was 60% and 40% in period of 60 day trial.</p> ER -