VARIASI TEMPERATUR DAN SALINITAS DI PERAIRAN UTARA BALI DAN KAITANNYA DENGAN BUDIDAYA IKAN TUNA SIRIP KUNING

• Main Author: Bardani Nufus, Dzorfi
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/45334
• Institution: Institut Teknologi Bandung

The water temperature and salinity are two physical parameters that influence the cultivation of yellowfin tuna. The cultivaion of yellowfin tuna has been done in the north of Bali by Balai Besar Riset Budidaya Laut dan Penyuluhan Perikanan, Gondol, Bali. The purpose of this study is to observe the influence of temperature and salinity toward yellowfin tuna cultivation by correlating the temperature and salinity value with spawning frequency and larvae’s Survival Activity Index (SAI). The temperature data used in this study are the Sea Surface Temperature (SST) data from Aqua MODIS satellite and from field observation. As for the salinity data used in this study are the Sea Surface Salinity (SSS) data from Aquarius and SMAP satellite. From the data, there were an increasing trend in temperature around 0,2°C per year and salinity around 0,16 psu per year. The result of this study shows that temperature have a low influence to spawning frequency of yellowfin tuna with a correlation of 0,34 and a moderate influence to larval survival activity with a correlation of - 0,51. Then for the salinity, it has a slight influence to spawning frequency of yellowfin tuna with a correlation of -0,18 and a low influence to larval survival activity with a correlation of 0,46. This study also shows that temperature’s influence is higher than salinity’s influence in the cultivation of yellowfin tuna.