Vertical Profile of Oxygen in the Lacustrine and Transition Zones, Koto Panjang Reservoir, Riau Province

dc.contributor.authorSimarmata, Asmika H
dc.contributor.authorSihotang, M. Siagian and C
dc.date.accessioned2016-03-22T04:51:26Z
dc.date.available2016-03-22T04:51:26Z
dc.date.issued2016-03-22
dc.description.abstractOxygen concentration in the water is significantly affected by environmental condition. In this research, oxygen concentration in the lacustrine and transition zones of the Koto Panjang reservoir is studied from June to September 2013, it was coincidence with the minimum water level. A post facto survey method was applied and there were 4 sampling sites, in the Lacustrine 1 (L1), Lakustrine 2 (L2), Transition 1 (T1) and Transition 2 (T2). The vertical sampling points were decided based on the brightness of the water (in the surface, 3m, 6 m, 12 m depth and above the sediment in the bottom). The number of vertical sampling sites was depend on the depth of the water. Results shown that the DO concentration in the surface of the lacustrine zone was 6.14 to 8.26 mg/l and in the transition zone was 7.38-8.6 mg/l. In the bottom of the lacustrine zone was 0 to 0.41 mg/l and that of the transition zone was 0.41-3.29 mg/l. The vertical profile of the Dissolved Oxygen in both stations shown that the highest decrement rate of the oxygen occur from 2 secchi depth (3 m) to 4 secchi depth (6 m). In the lacustrine zone, oxygen concentration drop into critical level (< 2 mg/l) in 12 m depth and in this research, the oxic depth was 7.0 m in L1 and 8.0 m in L2. Whereas in T1: 6.2 m and 8.0 m in T2. During the minimum water level, the oxic depth decrease due to decrement of water volume that lead into increment of organic matter loaded.en_US
dc.description.sponsorshipInternational Seminar of Fisheries and Marine (2ndISFM 2013)en_US
dc.identifier.isbn978-979-792-437-9
dc.identifier.otherwahyu sari yeni
dc.identifier.urihttp://repository.unri.ac.id/xmlui/handle/123456789/8108
dc.language.isoenen_US
dc.subjectKoto Panjang damen_US
dc.subjectlacustrineen_US
dc.subjecttransitionen_US
dc.subjectoxygenen_US
dc.titleVertical Profile of Oxygen in the Lacustrine and Transition Zones, Koto Panjang Reservoir, Riau Provinceen_US
dc.typeUR-Proceedingsen_US

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