Pengaruh Salinitas Terhadap Sintasan, Pertumbuhan, dan Laju Pertumbuhan Udang Vaname (Litopenaeus vannamei)

Vaname shrimp (Litopenaeus vannamei) as a superior type of shrimp, has economic value so it is widely cultivated in Indonesia. Vaname shrimp are included in aquatic organisms. This research was conducted to assess the effect of differences in salinity on the survival and growth rate of vaname shrimp. The research was carried out using experimental methods using a Completely Randomized Design (CRD) using six different salinity treatments (0 ppt; 3 ppt; 6 ppt; 9 ppt; 12 ppt; 15 ppt) with four replications. The experimental results were analyzed statistically through one-way analysis of variance (One Way Anova). Data showed no difference in survival. The salinity treatment given was high enough so that the average survival was 58.33%, with the highest value shown in the P3 (9ppt) treatment at 80%. Meanwhile, there were significant differences in length growth and weight growth in different treatments. In treatment P3 (9 ppt) the highest results were obtained with an average shrimp length of 10.66 cm. Thus, the average daily growth rate in the P3 (9 ppt) shrimp treatment was 0.18%/day. The influence of cannibalism and feeding greatly determined survival in this study.Keywords : vannamei shrimp, salinity, growth, survivalAbstrakUdang vaname (Litopenaeus vannamei) sebagai jenis udang yang diunggulkan, memiliki nilai ekonomi sehingga banyak dibudidayakan di Indonesia. Udang vaname termasuk dalam organisme akuatik. Penelitian ini dilakukan menilai pengaruh perbedaan salinitas pada sintasan dan laju pertumbuhan udang vaname. Penelitian dilakukan dengan menggunakan metode eksperimen menggunakan Rancangan Acak Lengkap (RAL) dengan menggunakan enam perlakuan salinitas berbeda (0 ppt; 3 ppt; 6 ppt; 9 ppt; 12 ppt;15 ppt) dengan empat ulangan. Hasil eksperimen dianalisis secara statistik melalui analisis varian satu arah (One Way Anova). Data menunjukkan tidak ada perbedaan pada sintasan. Perlakuan salinitas yang diberikan cukup tinggi sehingga rata sintasan sebesar 58,33%, dengan nilai tertinggi ditunjukkan pada perlakuan P3 (9 ppt) sebesar 80%. Sementara itu, terdapat perbedaan pertumbuhan panjang dan pertumbuhan berat yang signifikan pada perlakuan berbeda. Dalam perlakuan P3 (9 ppt) diperoleh hasil tertinggi dengan rata-rata panjang udang 10,66 cm. Demikian dengan rata-rata laju pertumbuhan harian pada perlakuan P3 (9 ppt) udang sebesar 0,18 %/hari. Pengaruh kanibalisme serta pemberian pakan sangat menentukan sintasan dalam penelitian ini.Kata kunci : udang vaname, salinitas, pertumbuhan, sintasan