Increased human activity towards the water bodies will change the condition of water quality. Case study in Langsa, Aceh, It was found that an increase in Some physical parameter (TSS) that exceeds the value determined in PP 82 of 2001 (Indonesian government standard). The high value of TSS in Station 2 and Station 3 indicates that the sediment loading to the water body is high, especially in Station 3, where the TSS concentrations far exceed the standard. Activity of type C surface mining materials tends to affect the brightness, turbidity, depth and TSS. Water conditions with low pH were also found in this study. In location studied no EPT larvae were found Keyword: Langsa, Water Quality, Stream, Total Suspended Solid, Anthropogenic Activity
Marine fish community is very sensitive to environmental changes. So the number of species, abundance, and biodiversity index can be used as a reference to assess the quality of the aquatic environment. The aim of this study was to describe fish biodiversity in Belitung Timur, Bangka Belitung Islands, Indonesia. Three islands were visited i.e. Pekandis Island, and Keran Island, Gosong Semut (Gosong refers to sandbar) for reef fish survey and for the economical fish study we also visited fisheries landing sites (i.e. Teluk Pering, Tanjung Batu Pulas, and Pantai Burung Mandi). The underwater visual census was used for in situ surveys of reef fish, and the fish species landed in fisheries landing site also been checked. Forty-two families of economical fish that had been landed by local fishermen were identified, and ten families of reef fish were found in reef systems of research location. A total of 10 families were recorded from three islands in Belitung Timur Regency. In addition, 42 families of commercial fish were also observed in fish landing sites from the coastline of Belitung Timur Regency, Bangka Belitung Islands.
To find out the characteristics of sea water quality in tidal and low conditions with parameters including DO, Salinity, pH, Temperature, Turbidity, Brightness. The study was conducted from February to April 2019. The collection of water quality parameters in pangempang waters using tools contained in the laboratory at 5 station points. Results from the parameters DO, Salinity, pH, Temperature and Brightness at the research site, while for Brightness in the Laboratory of Water Quality Faculty of Fisheries and Marine Sciences. The average result of the measurement at the tide conditions on the DO parameter is obtained 5.76 mg / l, the Salinity parameter obtained 21.8 o/oo, the pH parameter obtained 6.4, the temperature parameter obtained 32.2 oC, the turbidity parameter obtained 0.27 NTU parameter Brightness obtained 2.6 meters, while the average result of the measurement at receding conditions at the DO parameter obtained 6.56 mg / l, salinity parameter obtained 23.2 o/oo parameter pH obtained 7, Temperature parameter obtained 31.8oC turbidity parameter obtained 1.6 NTU parameter Brightness obtained 1.33 Meters.
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