Abstract                 Volume:5  Issue-4  Year-2018          Original Research Articles

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Epilithic Algae as a Biological Indicator in Sungai Suir Inside PT. Tidar Kerinci Agung Oil Palm Plantation
Serly Marselina Arifin*, Jabang Nurdin and Chairul
Biology Department, Faculty of Mathematics and Natural Sciences, Andalas University,Limau Manis-25163, Indonesia
*Corresponding author
Abstract:

A study about epilithic algae as biological indicator in the Sungai suir in the oil palm plantation area of PT. Tidar Kerinci Agung had conducted on April until August 2017. This research aims to know the composition of epilithic algae as biological indicator on the Sungai suir in oil palm plantation of PT. Tidar Kerinci Agung. This research is carried out by survey method and location of sampling determinates with purposive sampling. Determination of epilithic algae sampling station based on plantation activity of PT. Tidar Kerinci Agung. Sampling technique at each station using stratified random sampling. As a result, it has been found the epilithic algae of seven classes, Bacillariophyta, Chlorophyta, Cyanophyta, Dinophyta, Euglenophyta, Rhodophyta and Xanthopyta. The highest total epilithic algae density (209.56 ind/cm2) was found at station 3 and the lowest (101.38 ind/cm2) was found at station 4 (downstream river). The dominant epilithic algae were Cymbella sp. 1, Gomphonema sp., Navicula lanceolata, Synedra sp. 1, Cylindrocapsa sp., Calothrix sp. and Lyngbya sp 2. Saphrobic coefficient was -1.88 until -0.28.The result also showed that Sungai Suir was indicated pollution from moderately polluted tohigh level polluted. The nitrate concentrations ranged from 1.31 to 1.5 mg/L, phosphate ranged from 4.33 to 4.66 mg / L and ammonia ranged from non-detectable to 0.49 mg/L.

Keywords: Biological indicator,Epilithic algae,Oil palm plantation,Sungai Suir
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How to cite this article:

Arifin, S. M., Nurdin, J., Chairul, 2018. Epilithic algae as a biological indicator in Sungai Suir inside Pt. Tidar Kerinci Agung oil palm plantation.Int.J.Curr.Res.Biosci.Plantbiol. 5(4): 1-7. doi: https://doi.org/10.20546/ijcrbp.2018.504.001