• Septy Heltria Department of Fisheries Resources Utilization, Faculty of Animal Science, Jambi University, Muaro Jambi, 36361, Indonesia
  • Amir Yarkhasy Yuliardi Department of Marine Science, Faculty of Fisheries and Marine, PGRI Ronggolawe University, Tuban, 62381, Indonesia
  • Ratu Almira Kismawardhani Graduate School of Science, Department of Geophysics, Tohoku University, Miyagi. Japan
  • I Wayan Nurjaya Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University, Bogor, West Java, 16680. Indonesia
  • Lerma Yuni Siagian Department of Marine Science, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, South Sumatera, 30128. Indonesia
  • Denny Alberto Satrya Gumay Department of Marine Science, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, South Sumatera, 30128. Indonesia
Keywords: estuary, salinity zone classification, stratification, tidal exchange


Musi estuary is the mouth of the Telang and Musi rivers directly adjacent to the Bangka Strait. During flood (ebb) we see the distribution of salinity increases (decreases) which is known through the vertical distribution using CTD. The TS diagram is used to see the water mass characteristics the study area. Data-Interpolating Variational Analysis (DIVA) method is used to interpolate and visualize data from vertical and spatial temperature, salinity and density data. The classification of the Musi estuary zone is identified based on the value of the distribution of salinity, which considers the exchange of circulating salinity at flood and ebb. The density of the water mass is significantly affected by the proven graded salinity. While the temperature distribution does not change significantly with depth, the spatial distribution indicates that the temperature in the estuary is lower than in the upstream and ocean areas. The spatial distribution of salinity indicates that high salinity enters the estuary towards the river further at flood than at ebb. Salinity distribution ranges from 0.5 to 30 psu and temperatures between 29 and 33 oC from horizontal and vertical sections. The pattern of salinity distribution in the Musi river estuary was identified, consisting of three zones representing salinity conditions in the study area, namely the Polyhaline, Mesohaline, and Olygohaline zones.


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How to Cite
Septy Heltria, Amir Yarkhasy Yuliardi, Ratu Almira Kismawardhani, I Wayan Nurjaya, Lerma Yuni Siagian, & Denny Alberto Satrya Gumay. (2022). DISTRIBUTION OF SALINITY AND TEMPERATURE IN MUSI ESTUARY: USING VERTICAL SALINITY GRADIENT FOR ESTUARY CLASSIFICATION ZONE : English. Jurnal Ilmu Dan Teknologi Kelautan Tropis, 14(2), 217-231. https://doi.org/10.29244/jitkt.v14i2.40222